JP2010062800A - In-vehicle microphone device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an in-vehicle microphone device of which the number of components can be reduced and cost reduction is achieved while maintaining installation property to a vehicle and to constitute the microphone device so that the existing microphone unit is utilized as it is without requiring substantial design change of the microphone device. <P>SOLUTION: The in-vehicle microphone device 10 is provided with: a microphone unit 11 which includes a microphone element 14 and whose sound collection direction is specified; and a holding case 12 to which the microphone unit 11 is assembled, wherein the microphone unit 11 and the holding case 12 are provided with engagement parts 18, 19 to be engaged with each other when the assembly direction of the microphone unit is the specific direction, the holding case 12 has two vehicle connector insertion parts 13 whose opening directions are different. In addition, it is preferable that each vehicle connector insertion part 13 is provided so that the opening directions are different from each other by 180°. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle-mounted microphone device, and more particularly to a vehicle-mounted microphone device that is installed in an overhead module or the like in a vehicle interior and has directivity.

  In recent years, a voice recognition system and a hands-free call system are installed in a vehicle such as an automobile, and a case in which a microphone device is installed in an automobile or the like as a voice acquisition device in these systems is increasing. In order to make it difficult for the microphone device to pick up vibration noise during traveling of the vehicle, noise from the air conditioner, etc., the microphone device may be installed in an overhead module provided on the ceiling of the vehicle and provided with a room lamp, a roof opening / closing switch, etc. Many. If the microphone device is installed in the overhead module, it becomes difficult to pick up noise from the air conditioner. However, further measures against noise or unidirectionality toward the driver's seat are required for the microphone device.

  In view of such a situation, several apparatuses have been developed. For example, Patent Document 1 includes a microphone case in which a microphone element having directivity is incorporated, and a panel in which microphone cases are arranged on the driver's seat side and the passenger seat side, respectively. A microphone holder that holds the microphone element and holds the sound collection surface of the microphone element at a predetermined angle with the panel is supported, and a guide rod that extends outside the microphone case is connected to the microphone holder, The panel has a receiving portion for receiving the microphone case, and a guide portion that is provided in the receiving portion and guides the guide rod of the microphone case. When the microphone case is inserted into the receiving portion, the guide rod is guided by the guide portion. An in-vehicle control module is disclosed in which a microphone element is positioned in a predetermined direction inside a microphone case. In Patent Document 1, the sound collection surface can be positioned in the direction with the best directivity, and the S / N ratio of the microphone can be increased. Also, different microphones can be used for the driver side and the passenger seat. It is stated that the cost can be reduced by sharing the microphone without installing it on the side.

  In general, the microphone device includes a microphone unit 11 including a microphone element 14 that collects sound and converts it into an electrical signal, as disclosed in Patent Document 1 and as shown in FIGS. And a holding case 51 to which the microphone unit 11 is assembled. Here, FIG. 7 is a perspective view showing an appearance of a conventional in-vehicle microphone device 50 including the unidirectional microphone unit 11, and FIG. 8 shows a cross section of the in-vehicle microphone device 50 shown in FIG. FIG. As shown in FIG. 7 and the like, the holding case 51 has a vehicle connector insertion portion 52 for inserting a vehicle-side connector, and the vehicle connector insertion portion 52 is electrically connected to the microphone element 14. The connector terminal part 53 connected to is provided. When unidirectionality is required, as shown in FIG. 8, the microphone unit 11 and the holding case 51 are fitted with fitting portions (fitting portions that are fitted to each other when the assembly direction of the microphone unit 11 is a specific direction). The microphone unit side fitting portion 18 and the holding case side fitting portion 54) are provided, and the fitting portion prevents the microphone unit 11 from being assembled in the wrong direction. 8 shows a configuration in which the fitting portion is formed in a direction (sound collecting direction) in which the microphone unit 11 has directivity.

JP 2008-62885 A

  When the vehicle-mounted microphone device 50 having unidirectionality shown in FIG. 8 or the like is attached to an overhead module or the like, a vehicle-side connector is inserted into the vehicle connector insertion portion 52, but the connector installation direction depends on the vehicle type. Since they are different, it was necessary to prepare two types of holding cases 51. That is, as shown in FIGS. 8A and 8B, for example, the holding case side fitting portion 54 and the vehicle connector insertion portion 52 are arranged so as to correspond to a vehicle type in which the sound collection direction and the connector installation direction are the same. Holding case 51 (FIG. 8A) provided in the same direction, and the holding case side fitting portion 54 and the vehicle connector insertion portion so as to correspond to the vehicle type in which the sound collection direction and the connector installation direction are opposite. A holding case 51 (FIG. 8B) provided in the opposite direction to 52 is required. Therefore, there is a problem that the number of parts increases and the production cost and the management cost increase. This problem cannot be solved even by the in-vehicle microphone device 50 described in Patent Document 1, and it is difficult to cope with the conventional technology.

  An object of the present invention is to provide an in-vehicle microphone device capable of reducing the number of components and maintaining cost while maintaining the attachment property to a vehicle. Another object of the present invention is to provide a configuration in which an existing microphone unit can be used as it is without requiring a significant design change of the microphone device in solving the above-described problems.

  An in-vehicle microphone device according to the present invention includes a microphone element that collects sound and converts it into an electric signal, and includes a microphone unit in which a sound collection direction is specified, and a connector terminal portion that is electrically connected to the microphone element. The vehicle-mounted microphone device includes a vehicle connector insertion portion into which a vehicle-side connector is inserted, and has two vehicle connector insertion portions with different opening directions.

  In addition, another configuration of the in-vehicle microphone device according to the present invention includes a microphone element that collects sound and converts it into an electric signal, and is electrically connected to the microphone unit in which the sound collection direction is specified, and the microphone element. And a holding case to which the microphone unit is assembled. The microphone unit and the holding case specify the direction in which the microphone unit is assembled. The in-vehicle microphone device is provided with fitting portions that are fitted to each other in the direction, and the holding case has two vehicle connector insertion portions with different opening directions.

  Each vehicle connector insertion portion is preferably provided such that the opening directions are different from each other by 180 °.

  In addition, the microphone unit has a connection cable that is pulled out to the outside and connected to the microphone element. When the microphone unit is assembled to the holding case, the terminal connection that contacts each connector terminal portion is connected to the connection cable. It is preferable that a pin is provided and the microphone element and each connector terminal portion are electrically connected via the terminal connection pin.

  The terminal connection pin is installed on a support member fixed to the holding case when the microphone unit or the microphone unit is assembled to the holding case, one end being the microphone unit side terminal portion and the other end being the microphone unit or the supporting member. It is preferable that an urging member that is fixed and urges the terminal connection pin in the direction of the connector terminal portion is provided.

  According to the in-vehicle microphone device of the present invention, since the two vehicle connector insertion portions having different opening directions are provided, the number of components can be reduced while maintaining the attachment property to the vehicle. That is, regardless of which side the sound collection direction is, the vehicle-side connector can be connected from the same direction as the sound collection direction, for example. The vehicle-side connector can also be connected from the direction opposite to the sound direction. Therefore, it is not necessary to prepare two microphone devices as in the prior art, and one microphone device can meet the mounting needs on the vehicle, the number of parts is reduced, and costs such as production costs and management costs are reduced. Can be reduced.

  According to the in-vehicle microphone device of the second aspect, the microphone unit includes a microphone unit and a holding case to which the microphone unit is assembled, and the holding case has two vehicle connector insertion portions having different opening directions. Even in the case where the microphone unit and the holding case having the vehicle connector insertion portion are formed of separate parts, the above-described effect of reducing the number of parts and reducing the cost can be obtained. That is, unlike the conventional case, it is not necessary to prepare two holding cases, and one holding case can meet the mounting needs for the vehicle. In addition, the existing microphone unit can be used as it is, and there is an advantage that a significant design change of the microphone device is not required.

  In addition, if each vehicle connector insertion portion is configured to be provided so that the opening directions are different from each other by 180 °, it is most suitable when a single component is used for various types of vehicles having different vehicle-side connector installation directions. It becomes a form that can be easily handled.

  In addition, when connected to the connection cable connected to the microphone element and the microphone unit is assembled to the holding case, if the terminal connection pin that comes into contact with each connector terminal portion is provided, via the terminal connection pin, Since the electrical connection between the microphone element and each connector terminal portion is formed, the existing microphone unit can be easily used, and the efficiency of the assembly work can be increased and the number of parts can be further reduced.

  The terminal connection pin is installed on a support member fixed to the holding case when the microphone unit or the microphone unit is assembled to the holding case, one end being the microphone unit side terminal portion and the other end being the microphone unit or the supporting member. If the urging member that is fixed and urges the terminal connection pin in the direction of the connector terminal portion is provided, the terminal connection pin can easily come into contact with the connector terminal portion, and the contact between them is improved. . Further, even when the terminal connection pin is accidentally pierced into a portion other than the terminal connection hole of the holding case when the microphone unit is assembled, damage to the holding case can be greatly reduced.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing an external appearance of an in-vehicle microphone device including a unidirectional microphone unit, and FIG. 2 is a left side view of the in-vehicle microphone device shown in FIG. 3 to 5 are schematic views showing a cross section of the in-vehicle microphone device shown in FIGS. 1 and 2.

  A vehicle-mounted microphone device 10 (hereinafter referred to as a microphone device 10) shown in FIG. 1 and the like is mounted as a voice acquisition device in a voice recognition system or a hands-free call system installed in a vehicle such as an automobile. Such a microphone device 10 is preferably mounted in an overhead module in which a room lamp, a roof open / close switch, and the like are arranged in order to make it difficult to pick up vibration noise during driving of the vehicle, air-conditioner blowing noise, and the like. Below, although the microphone apparatus 10 is demonstrated as what is attached in an overhead module, as an installation place, it is not limited to this.

  As shown in FIG. 1, the in-vehicle microphone device 10 includes a microphone unit 11 and a holding case 12. The microphone unit 11 is installed in a vehicle overhead module (not shown) in a state assembled to the holding case 12. The holding case 12 that holds the microphone unit 11 is provided with a vehicle connector insertion portion 13 for inserting a vehicle-side connector (not shown), and as shown in FIG. 1 and FIG. This is a major feature of the microphone device 10. Hereinafter, the two vehicle connector insertion portions 13 which are important constituent elements of the microphone device 10 will be described in detail with a means for simply realizing the configuration. The vehicle-side connector is a connector to which a vehicle-side wire harness is connected, and is a member that is inserted into the vehicle connector insertion portion 13 in order to take out an audio signal acquired and converted by a microphone element 14 described later. is there.

  As shown in FIG. 3, the microphone unit 11 includes a microphone element 14 that collects sound and converts it into an electrical signal. In addition, the microphone unit 11 is provided with a microphone element 14 placed in the sound collection direction A and a soundproof member 15 that covers the upper part of the microphone element 14 in order to develop unidirectionality. The microphone element 14 has a sound collection surface 27 for converting sound into an electric signal on both sides, and the sound collection surface 27 is installed so as to be perpendicular to the longitudinal direction of the microphone unit 11. A position shifted from the longitudinal center of the microphone unit 11 to one side (sound collection direction A) is defined as the center position of the microphone element 14, and the space on the one sound collection surface 27A side of the microphone element 14 in the microphone unit 11 is the other. Is smaller than the space on the sound collection surface 27B side. According to such a configuration, it is possible to acquire mainly the sound collection direction A, for example, the voice on the driver's seat side without picking up the surrounding sound by the soundproof member 15 provided inside the microphone unit 11.

  As described above, the holding case 12 is a component that holds the microphone unit 11 and can be inserted with a vehicle-side connector, and has a function of electrically connecting a terminal portion of the vehicle-side connector (not shown) and the microphone element 14. . The vehicle-side connector is inserted into vehicle connector insertion portions 13 (which are respectively referred to as a right vehicle connector insertion portion 13A and a left vehicle connector insertion portion 13B) provided at two left and right positions of the holding case 12. The vehicle connector insertion portion 13 is a hole into which the vehicle-side connector is inserted, and a connector terminal portion 16 that comes into contact with the terminal portion of the vehicle-side connector is provided therein. The connector terminal portion 16 is also electrically connected to the microphone element 14 via a terminal connection pin 23 and the like, which will be described later, and can transmit an audio signal acquired and converted by the microphone element 14 to the vehicle side.

  In addition to the microphone element terminal for transmitting an audio signal from the microphone element 14, the connector terminal portion 16 usually includes a ground terminal that functions as a ground and an amplifier terminal that is connected to an amplifier (not shown). For example, when the terminal arrangement is not changed, such as arranging the microphone element terminal, the amplifier terminal, and the ground terminal in this order, and sharing the connector terminal part 16 in each connector insertion part 13 as will be described later, FIG. 1 and FIG. As shown, it is preferable that the direction of each connector insertion portion 13 is formed upside down. With such a configuration, it is not necessary to change the terminal arrangement at each connector insertion portion 13, and the sound collection direction A can be easily confirmed as will be described later. Hereinafter, as the connector terminal portion 16, a configuration and an assembling method will be described using a microphone element terminal as an example.

  A structure for fixing the microphone unit 11 is formed in the holding case 12. For example, a locking claw 17 is provided on the outer shape of the microphone unit 11, and a locking groove for the microphone unit 11 (not shown) is formed inside the holding case 12. The microphone unit 11 can be fixed (assembled) to the holding case 12 by the locking claw 17 and the locking groove being locked when inserted into the holding case 12 and assembled.

  Since the microphone unit 11 has a single directivity as described above, the assembly direction of the microphone unit 11 needs to be specified. Specifically, it is preferable that the outer shape of the microphone unit 11 is provided with a shape or print that serves as a mark for specifying the sound collection direction. Since the microphone unit-side fitting portion 18 is formed in the existing microphone unit 11, the mounting direction of the microphone unit 11 is also attached to the holding case 12 from the viewpoint of preventing erroneous assembly using the existing microphone unit 11. In the case of the specific direction, it is preferable that a holding case side fitting portion 54 to be fitted to the microphone unit side fitting portion 18 is provided.

  Since this fitting part is formed inside the holding case and cannot be confirmed after being assembled, when the outer shape is symmetrical like the microphone device 10 shown in FIG. Sometimes it can be installed in the wrong direction. Therefore, it is preferable that the holding case 12 is provided with a shape or print that serves as a mark for specifying the sound collection direction A. For example, when the shape of each vehicle connector insertion portion 13 is different in the vertical and horizontal directions, as shown in FIG. 2, the direction is reversed upside down in the right vehicle connector insertion portion 13A and the left vehicle connector insertion portion 13B. Can be provided. With such a configuration, the sound collection direction A can be easily confirmed when the vehicle is attached. In addition, as shown in FIG. 3 etc., the holding case side fitting part 19 can be formed in the sound collection direction A side of the microphone unit 11, for example, but it is not limited to this and is opposite to the sound collection direction A It can also be formed on the side.

  Note that the microphone unit 11 and the holding case 12 may be integrally formed to form an integrated microphone device 10. In this case, since the assembly process of the microphone unit 11 is eliminated, it is not necessary to form a fitting portion. On the other hand, as shown in FIG. 1 and the like, if the microphone device 10 includes two members, the microphone unit 11 and the holding case 12, there is an advantage that the existing microphone unit 11 can be used as it is. In the description of the embodiment, a configuration including two members of the “microphone unit 11 and the holding case 12” that can use existing components will be mainly described. However, the microphone device 10 is not limited to this configuration.

  As described above, the microphone device 10 is greatly characterized by having two vehicle connector insertion portions 13 in the holding case 12, and the vehicle connector insertion portions 13 are provided so that the opening directions thereof are different from each other. Each opening direction can be changed according to the mounting needs to the vehicle, but from the viewpoint of satisfying the mounting needs to the vehicle and reducing the number of parts, as shown in FIG. Moreover, it is preferable that the two vehicle connector insertion portions 13 are provided so that the opening directions are different from each other by 180 °. Moreover, it is preferable that the two vehicle connector insertion parts 13 are formed in linear form. The configuration in which the vehicle connector insertion portion 13 is provided so that the opening directions are different by 180 ° is the form that can be most easily adapted to a variety of vehicle types in which the installation direction of the vehicle-side connector is different with a single component. . Further, if the two vehicle connector insertion portions 13 are formed in a straight line, the holding case 12 can be made more compact and the cost can be further reduced, for example, the members constituting the connector terminal portion 16 can be shared as will be described later.

  Such vehicle connector insertion portions 13 </ b> A and 13 </ b> B are partitioned by a partition wall 20, and the connector terminal portion 16 is installed on the partition wall 20. As shown in FIG. 4, the connector terminal portion 16 installed on the partition wall 20 may be bent in an L shape. In this case, as will be described in detail later, the assembly is similar to the conventional one. The method (FIG. 10) can be applied. On the other hand, as shown in FIG. 3, a member constituting one connector terminal portion 16 may be provided across each vehicle connector insertion portion 13 so as to penetrate the partition wall 20. With such a configuration, the holding case 12 can be easily manufactured, the number of components can be reduced, and the production cost can be reduced. Below, it demonstrates centering around the structure shown in FIG.

  As shown in FIG. 3 and the like, a connection cable 21 is extended from the microphone element 14 of the microphone unit 11, and the connection cable 21 is soldered to the conductive support substrate 22. Here, the connection cable 21 is an electric wire for taking out the audio signal acquired and converted by the microphone element 14 from the microphone element 14. The conductive support substrate 22 is a member that is fixed to the holding case 12 when the microphone unit 11 is assembled and relays the electrical connection between the microphone element 14 and the connector terminal portion 16. The conductive support substrate 22 is provided with terminal connection pins 23 that come into contact with the connector terminal portion 16, and the terminal connection pins 23 and the connection cable 21 are electrically connected via the conductive support substrate 22. The conductive support substrate 22 has conductivity at least in the connection path portion of the terminal connection pins 23 and the connection cable 21, and for example, the portion or the whole can be made of a conductive metal material or the like. The terminal connection pin 23 can also be provided in the microphone unit 11.

  In the holding case 12, for example, a terminal connection hole 24 that communicates to the installation position of the connector terminal portion 16 that is installed through the partition wall 20 shown in FIG. 3 can be formed inside the partition wall 20. The terminal connection hole 24 is formed along a direction perpendicular to the connector terminal portion 16. As shown in FIG. 3, a terminal connection pin 23 electrically connected to the microphone element 14 is inserted into the terminal connection hole 24, and the tip of the terminal connection pin 23 comes into contact with the connector terminal portion 16. An electrical connection between the element 14 and the connector terminal portion 16 is formed.

  As a configuration for connecting the terminal connection pin 23 and the connector terminal portion 16 using the terminal connection hole 24, for example, a configuration as shown in FIG. The connector terminal portions 16A and 16B are installed on the partition wall 20 so as to be in contact with the terminal connection hole 24. Inside the terminal connection hole 24, for example, an electrical contact portion connected to the connector terminal portion 16 (not shown) is provided. Provided. When the terminal connection pin 23 comes into contact with the electrical contact portion, the terminal connection pin 23 and the connector terminal portion 16 are connected.

  As shown in detail in FIG. 6, a biasing member 25 can be installed on the terminal connection pin 23. Specifically, the terminal connection pin 23 has a terminal connection pin case 26 into which at least a part of the terminal connection pin 23 is inserted. The biasing member 25 has one end connected to the terminal connection pin 23 and the other end connected to a terminal. Each terminal pin 23 is fixed to the connection pin case 26 and biased toward the connector terminal portion 16. By installing the urging member 25, the contact between the terminal connection pin 23 and the connector terminal portion 16 is improved, and the terminal connection pin 23 is erroneously attached to a portion other than the terminal connection hole 24 of the holding case 12 during assembly. Even when pierced, the holding case 12 can be prevented from being damaged. The terminal connection pin 23, the urging member 25, and the terminal connection pin case 26 are made of a conductive material, and the terminal connection pin case 26 is soldered to the conductive support substrate 22 as shown in FIG. By doing so, the terminal connection pin 23 and the connection cable 21 can be electrically connected.

  A method for assembling the microphone unit 11 to the holding case 12 will be specifically described. FIG. 9 is a diagram illustrating an assembly process of the microphone device 10 having the configuration illustrated in FIG. 3 and the like, and the assembled microphone device 10 is in the state illustrated in FIG. As a comparison, the assembly process of the conventional microphone device is shown in FIG. 10 (the state after the assembly is the state shown in FIG. 8B).

  As shown in FIG. 9A, first, a terminal support pin 23 is attached, and a conductive support substrate 22 to which a connection cable 21 connected to the microphone element 14 is soldered is prepared (first step). The terminal connection pins 23 and the connection cable 21 are electrically connected via the conductive support substrate 22. When the prepared conductive support substrate 22 is installed in the holding case 12, the terminal connection pins 23 are inserted into the terminal connection holes 24 to ensure the connection between the connector terminal portion 16 and the microphone element 14. As shown in FIG. 9B, the conductive support substrate 22 is fixed to the holding case 12 using a conductive support substrate locking claw 28 provided in the holding case 12 (second step). Finally, the microphone unit 11 is installed in the holding case 12 to complete the assembly.

  On the other hand, as shown in FIG. 10A, a conventional microphone device is assembled by preparing a conductive support substrate 22 to which a connection cable 21 connected to the microphone element 14 is soldered (first step). As shown in b), the conductive support substrate 22 is installed in the holding case 51, and the connector terminal portion 53 and the conductive support substrate 22 are soldered in a state where the microphone unit 11 is lifted (second). Process).

  As described above, by providing the terminal connection pin 23 and the terminal connection hole 24, it is possible to eliminate the soldering work in the assembly process of the microphone unit 11 and improve the workability. In particular, since the microphone device 10 includes the two vehicle connector insertion portions 13 and the two connector terminal portions 16, the effect of the above configuration is important.

  As described above, according to the microphone device 10, since the two vehicle connector insertion portions 13 having different opening directions are provided, the number of components can be reduced while maintaining the attachment property to the vehicle. That is, regardless of which side the sound collection direction A is, and which side is where the fitting portion is formed, the installation direction of the vehicle-side connector is not determined as one direction, and the two vehicle connectors It can be installed without difficulty in the insertion portion 13 which is easy to install. For example, the vehicle-side connector can be connected from the same direction as the sound collection direction A, or the vehicle-side connector can be connected from the direction opposite to the sound collection direction A. Therefore, unlike the conventional case, it is not necessary to prepare two holding cases 12, and one holding case 12 and one microphone device 10 can meet the needs for attachment to a vehicle. Therefore, the number of parts is reduced, and it becomes possible to reduce costs such as production costs and management costs.

  The existing microphone unit 11 can be easily used as it is by the conductive support substrate 22, the terminal connection pins 23, the terminal connection holes 24, and the like, and no significant design change of the microphone device 10 is required, as shown in FIG. As described above, the assembling work of the microphone unit 11 can be simplified.

It is a perspective view which shows the external appearance of the vehicle-mounted microphone apparatus containing a unidirectional microphone unit. It is a left view of the vehicle-mounted microphone apparatus shown in FIG. It is the schematic which shows the cross section of the vehicle-mounted microphone apparatus shown in FIG.1 and FIG.2. It is a figure which shows the modification of the structure shown in FIG. It is a figure which shows the other modification of the structure shown in FIG. It is a schematic diagram which shows the cross section of the terminal connection pin part in which the biasing member was installed. It is a perspective view which shows the external appearance of the conventional vehicle-mounted microphone apparatus containing a unidirectional microphone unit. It is the schematic which shows the cross section of the vehicle-mounted microphone apparatus shown in FIG. 7, and has shown the structure which has a holding case in which the fitting part and the vehicle connector insertion part were provided in the same direction. It is the schematic which shows the cross section of the vehicle-mounted microphone apparatus shown in FIG. 7, and has shown the structure which has a holding case in which the fitting part and the vehicle connector insertion part were provided in the opposite direction. It is a figure which shows the 1st process of the assembly | attachment of the microphone unit in the vehicle-mounted microphone apparatus shown in FIG. It is a figure which shows the 2nd process of the assembly | attachment of the microphone unit in the vehicle-mounted microphone apparatus shown in FIG. It is a figure which shows the 1st process of the assembly | attachment of the microphone unit in the vehicle-mounted microphone apparatus shown in FIG.8 (b). It is a figure which shows the 2nd process of the assembly | attachment of the microphone unit in the vehicle-mounted microphone apparatus shown in FIG.8 (b).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Car-mounted microphone apparatus, 11 Microphone unit, 12 Holding case, 13 Vehicle connector insertion part, 13A Right side vehicle connector insertion part, 13B Left side vehicle connector insertion part, 14 Microphone element, 15 Sound insulation member, 16 Connector terminal part, 17 Locking Claw, 18 Microphone unit side fitting part, 19 Holding case side fitting part, 20 Partition wall, 21 Connection cable, 22 Conductive support board, 23 Terminal connection pin, 24 Terminal connection hole, 25 Biasing member, 26 Terminal connection Pin case, 27 Sound collecting surface, 28 Conductive support substrate locking claw, 50 Conventional vehicle-mounted microphone device (hereinafter, number 50 is a component of conventional vehicle-mounted microphone device), 51 Holding case, 52 Vehicle connector Insertion part, 53 connector terminal part, 54 holding case side fitting part.

Claims (5)

A microphone unit that includes a microphone element that collects sound and converts it into an electrical signal, and whose sound collection direction is specified;
A connector terminal portion electrically connected to the microphone element is provided, and a vehicle connector insertion portion into which a vehicle-side connector is inserted,
An in-vehicle microphone device comprising:
An in-vehicle microphone device having two vehicle connector insertion portions having different opening directions. A microphone unit that includes a microphone element that collects sound and converts it into an electrical signal, and whose sound collection direction is specified;
A connector terminal portion that is electrically connected to the microphone element, has a vehicle connector insertion portion into which a vehicle-side connector is inserted, and a holding case to which the microphone unit is assembled;
With
The microphone unit and the holding case are in-vehicle microphone devices each provided with a fitting portion that is fitted to each other when the assembly direction of the microphone unit is a specific direction,
The holding case is
An in-vehicle microphone device having two vehicle connector insertion portions having different opening directions. The in-vehicle microphone device according to claim 2,
Each vehicle connector insertion part
An in-vehicle microphone device, wherein opening directions are different from each other by 180 °. The in-vehicle microphone device according to claim 2 or 3,
The microphone unit
It has a connection cable that is pulled out and connected to the microphone element.
When the microphone unit is assembled to the holding case by connecting to the connection cable, a terminal connection pin that comes into contact with each connector terminal portion is provided, and the microphone element and each connector terminal portion are electrically connected via the terminal connection pin. An in-vehicle microphone device connected to the vehicle. The in-vehicle microphone device according to claim 4,
The terminal connection pin is
When the microphone unit or the microphone unit is assembled to the holding case, it is installed on a support member that is fixed to the holding case.
An in-vehicle microphone, characterized in that one end is fixed to the microphone unit side terminal portion and the other end is fixed to the microphone unit or the support member, and an urging member for urging the terminal connection pin in the direction of the connector terminal portion is provided. apparatus.

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