CN115315744A - Diaphragm pot - Google Patents

Abstract

The invention relates to a diaphragm pot (1a), in particular for a sound transducer. The diaphragm pot (1a) has a diaphragm (3) and walls (6a, 6b), wherein the diaphragm (3) and the walls (6a, 6b) of the diaphragm pot (1a) ) is designed in one piece as a plastic component, in particular a fiber-plastic composite component. In addition, the diaphragm pot (1a) has at least two electrical connection elements (8a, 8b) for electrically connecting the transducer elements (2) of the sound transducer, in particular piezoelectric transducers components and circuit boards. The at least two electrical connection elements (8a, 8b) are integrated into the membrane can (1a), in particular the wall (6a, 6b) of the membrane can (1a).

Description

Diaphragm cans

technical field

The present invention relates to a membrane cup, in particular for a sound transducer, and to a sound transducer with such a membrane cup. Furthermore, the invention relates to a method for producing a membrane pot.

Background technique

Document DE19626293 describes the electrical contacting of piezoelectric elements of ultrasonic sensors by means of contact springs. These contact springs are cast into annular connectors made of plastic. This connecting body is in turn pressed into the pot-shaped vibrating element. As a result, the contact springs are brought into mechanical and electrical contact with the piezoelectric element and with the inner peripheral surface of the conductive pot-shaped vibration element.

Contents of the invention

Starting from the prior art, the object of the present invention is to provide a simplified design for the membrane pot.

In order to solve this object, the invention proposes a membrane pot according to claim 1 . Furthermore, a sound transducer according to claim 12 and a method for producing a diaphragm cup are proposed according to claim 14 .

A diaphragm pot, which is suitable in particular for a sound transducer, has a diaphragm, in particular a vibratable diaphragm, and a wall. The membrane and the wall of the membrane pot are formed in one piece as a plastic component (in particular a fiber-plastic composite component). The diaphragm pot additionally has at least two electrical connecting elements which are suitable for electrically connecting a transducer element (in particular a piezoelectric transducer element) of the sound transducer to a printed circuit board. In this case, the at least two electrical connection elements are integrated into the membrane pot, in particular the wall of the diaphragm pot. The integration of these electrical connection elements and thus the one-piece construction of the diaphragm pot considerably simplifies the implementation of the construction of the diaphragm pot compared to conventionally manufactured diaphragm pots, which would otherwise be In the diaphragm canister, its components are installed individually. In order to integrate the at least two electrical connection elements into the wall of the diaphragm pot, these electrical connection elements can be cast, for example, at least partially into the wall. Preferably, the form-locking and material-locking connection between the at least one decoupling element and the diaphragm pot and/or to at least a part of the housing is designed to be non-detachable.

Preferably, the membrane is configured as a circular surface, in the membrane pot, a preferably correspondingly cylindrical wall section adjoining the circular surface. Alternatively, it is possible to provide other shapes for the membrane and correspondingly for the wall of the membrane cup. For example, the membrane can also be configured, for example, as an elliptical or rectangular surface, wherein the wall of the membrane pot has a corresponding shape, so that it can also be configured, for example, as an elliptical or rectangular cylinder. Preferably, the membrane or a subregion of the membrane is configured as a first region of the fiber-plastic composite component with fiber reinforcement, and the wall of the membrane pot serves as a second region of the fiber-plastic composite component Fiber-free construction. Further preferably, the plastic of the fiber-plastic composite component is selected from thermoplastics or thermosetting plastics.

Preferably, the at least two electrical connection elements are configured as at least two electrical contact pins (in particular electrical plugs) for the electrical connection of the transducer element to the printed circuit board. These electrical contact pins are formed electrically conductively from metal (in particular copper) and allow a simple, mechanically stable electrical connection of the transducer element to the printed circuit board.

Preferably, the membrane arranged on the bottom of the membrane pot and the (in particular hollow cylindrical) wall of the diaphragm pot form the inner chamber of the diaphragm pot. In this case, the at least two electrical connection elements are arranged at least partially in the interior of the diaphragm pot.

Preferably, the membrane pot also has at least one reinforcing element for stiffening the wall of the diaphragm pot. In this case, the at least one reinforcing element is arranged (in particular completely) in an inner chamber of the diaphragm pot, which is formed by the diaphragm The walls and membrane of the can expand. The stiffening element also serves to decouple the wall of the diaphragm pot from the (in particular vibrable) diaphragm of the diaphragm pot in an oscillating-mechanical manner. Furthermore, the stiffening element preferably has a specific influence on the functional vibration properties of the diaphragm cup, such as resonance frequency, damping and directivity.

Preferably, the at least one reinforcing element is positively and/or nonpositively connected to the diaphragm cup. For this purpose, the reinforcing element can, for example, be glued to the diaphragm pot and/or there can be a pressure connection between the reinforcing element and the diaphragm pot. Preferably, said stiffening element is detachably connected to said diaphragm pot. In this connection, for example, a snap connection of the reinforcing element to the membrane pot, in particular the wall of the diaphragm pot, can be provided. Preferably, the at least one reinforcing element is likewise integrated into the wall of the diaphragm pot. The integration of the stiffening element into the wall of the diaphragm pot and thus the one-piece construction of the diaphragm pot significantly simplifies the process compared to conventionally produced diaphragm pots. The construction of the diaphragm can implements that in conventionally manufactured diaphragm cans its components are mounted individually. In order to integrate the reinforcing element into the wall of the membrane pot, these electrical connection elements can be cast into the wall, for example. Preferably, the stiffening element is designed to connect opposite surfaces of the wall parts, in particular hollow-cylindrical wall parts, to one another. In this respect, the reinforcing element is arranged on the side of the inner chamber of the diaphragm pot that is opposite the diaphragm. An optimal vibration-mechanical decoupling of the diaphragm from the wall of the diaphragm pot is thereby achieved. Preferably, the reinforcing element is formed in the form of a plate. Further preferably, the reinforcing element is constructed of metal, in particular aluminium. Alternatively, the reinforcing element is formed from plastic or a fiber-plastic composite.

布置，这譬如对于维护或维修这些触针而言是有利的。对此替换地，所述至少两个电连接元件中的各一电连接元件的至少一个子区域在所述内室的区域中布置在所述膜片与所述至少一个加固元件之间。由此，所述至少一个加固元件可良好地从外部触及地布置。如果所述加固元件可拆卸地与所述膜片罐形件连接并由此未集成到所述膜片罐形件中，那么，在这两种情况下都能够在拆装所述加固元件时触及这些电连接元件(特别是这些触针)以及所述声换能器的其它组件(特别是换能器元件)以便进行维护或维修。Preferably, these electrical connection elements are arranged between the membrane and the at least one stiffening element outside the region of the inner chamber. The electrical connection elements (in particular the contact pins) are thus well accessible from the outside

Arrangement, which is advantageous, for example, for maintenance or repair of these contact pins. As an alternative thereto, at least one subregion of each of the at least two electrical connecting elements is arranged in the region of the inner chamber between the membrane and the at least one stiffening element. As a result, the at least one stiffening element is arranged in an easily accessible manner from the outside. If the stiffening element is detachably connected to the diaphragm pot and is thus not integrated into the diaphragm pot, then in both cases it is possible to disassemble the stiffening element The electrical connection elements, in particular the contact pins, and other components of the sound transducer, in particular the transducer elements, are accessible for maintenance or repair.

Preferably, the reinforcing element has at least one recess configured as a lead-through for an electrical conductor connected to the electrical connection element. In this way, the electrical connection elements can, for example, be electrically conductively connected to the transducer element, even if they are arranged outside the region of the inner chamber between the diaphragm and the at least one stiffening element. situation in between.

Preferably, the at least two electrical connection elements and/or the reinforcing element are at least partially embedded in the membrane pot (in particular the wall of the diaphragm pot) such that the At least two electrical connection elements and/or the reinforcing element are positively connected to the diaphragm pot. Here, for example, epoxy resin can be used as plastic material. A material-bonded connection between the diaphragm pot and the electrical connecting elements and/or the reinforcing elements can be achieved when the electrical connecting elements and/or the reinforcing elements are wetted during the production process of the plastic material. For this purpose, thermosetting substances are preferably used as plastic material. This substance-adhesive property achieves a non-detachable material-bonded connection between the diaphragm pot and the electrical connection element and/or the reinforcing element. This materially bonded connection can be compared to an adhesive bond, but no adhesive is used, but the adhesive material properties of the plastic are used for the connection. It should be noted here that the material-adhesive properties of the wall of the membrane pot are coordinated with the material-adhesive properties of the electrical connection element and/or the material-adhesive properties of the reinforcing element in order to achieve Long-lasting material-lock connection.

Preferably, the electrical connection element and/or the reinforcing element are at least partially embedded in the membrane pot (in particular the wall of the diaphragm pot) such that the at least two The electrical connection element and/or the reinforcing element are positively connected to the diaphragm pot. For this purpose, the electrical connecting element and/or the reinforcing element has, for example, a subregion whose wall thickness is greater than the wall thickness of the remaining regions of the electrical connecting element and/or the reinforcing element. A subregion with a thicker wall thickness is at least partially surrounded by the plastic material, so that a form-locking connection to the diaphragm pot is produced.

Another subject of the invention relates to an acoustic transducer, in particular an ultrasonic transducer, having the previously described diaphragm pot, a transducer element, in particular a piezoelectric transducer element ) and the circuit board. Such a circuit board (or also called a conductor board) is the carrier for the electronic components of the sound transducer. Such a circuit board is used for mechanical fastening and electrical connection of the sound transducer. In this case, the membrane pot has a membrane and a wall. The membrane and the wall of the membrane pot are formed in one piece as a plastic component (in particular a fiber-plastic composite component). The diaphragm pot has at least two electrical connection elements for electrically connecting the transducer element, in particular the piezoelectric transducer element of the sound transducer, to the circuit board. The at least two electrical connection elements are integrated into the diaphragm pot, in particular into the wall of the diaphragm pot. By constructing the diaphragm and the wall of the diaphragm in one piece, and integrating the at least two electrical connection elements into the diaphragm pot, in particular the wall of the diaphragm pot Part) an acoustic transducer with a simple and particularly robust configuration can be realized.

Preferably, the at least two electrical connection elements are configured as contact pins (in particular electrical pins). The sound transducer additionally has an electrical conductor for electrically connecting the transducer element to the electrical plug. That is to say, the transducer element is in conductive contact with the at least two conductive wires, and each one of the conductive wires is in turn in conductive contact with each electrical connection element. These electrical connection elements are in turn in contact with the circuit board. The sound transducer can thus be operated electrically.

Preferably, the transducer elements of the sound transducer are integrated into the diaphragm pot, in particular the bottom face of the diaphragm pot. In order to integrate the transducer element into the diaphragm pot, the transducer element can, for example, be cast at least partially into the base of the diaphragm pot.

Another subject of the invention relates to a method for manufacturing the previously described diaphragm can, in particular for an acoustic transducer. Here, at least two electrical connection elements for electrically connecting the transducer elements of the sound transducer (in particular piezoelectric transducer elements) to the circuit board are first placed in a tool (in particular an injection molding machine) tool or resin injection machine tool) cavity. Next, plastic material is injected or sprayed into the mold cavity. In this case, the at least two electrical connection elements at least partially rest on the plastic material and/or are surrounded by the plastic material. The diaphragm cup is thus configured with a wall, a (in particular vibrating) diaphragm and the at least two electrical connection elements. In this case, the at least two electrical connection elements are integrated into the membrane pot, in particular the wall of the diaphragm pot.

Preferably, in order to form the vibratable membrane of the membrane pot, a fiber mat is additionally introduced into the mold cavity of a tool, in particular of the injection molding machine. The fiber mat is (in particular completely) surrounded by the plastic material when the plastic material is sprayed in. The fiber-reinforced membrane is thus stabilized relative to the wall of the membrane pot. Advantageous mechanical and/or vibromechanical properties of the membrane can be achieved by such a fiber reinforcement.

Preferably, at least one stiffening element for stiffening the wall of the membrane can is also mounted on the membrane can. For this purpose, the stiffening element can be mounted, for example, on the side of the (in particular hollow cylindrical) wall of the membrane pot that is opposite the membrane. For this purpose, the reinforcing element can be glued, for example, to the wall of the membrane pot. Alternatively, the reinforcement element can also be introduced into a mold cavity of the tool, in particular of the injection molding tool. Next, plastic material is injected into the mold cavity. In this case, the reinforcing element rests at least partially on the plastic material and/or is surrounded by the plastic material. As a result, the reinforcing element is likewise integrated into the diaphragm pot.

Furthermore, the previously described sound transducers can also be produced by the method. For this purpose, the transducer element is also inserted into a further cavity of the tool, in particular an injection molding tool. Next, plastic material is injected into the mold cavity. In this case, the transducer element rests at least partially on the plastic material and/or is surrounded by the plastic material. As a result, the transducer element is integrated into the diaphragm pot, in particular the bottom of the diaphragm pot. Furthermore, electrically conductive wires are mounted for electrically connecting the transducer element with the at least two electrical connection elements. Furthermore, the housing of the sound transducer with the printed circuit board of the sound transducer is bonded (in particular materially and/or positively and/or non-positively) to the diaphragm pot ground) connection.

Description of drawings

The accompanying drawings show:

Figure 1a shows a first embodiment of a membrane pot;

Figure 1b shows a second embodiment of a membrane pot;

Figure 1c shows a third embodiment of a diaphragm pot;

Figure 1d shows a fourth embodiment of a diaphragm pot;

Figure 2 shows an embodiment of an acoustic transducer;

Figure 3 shows a different embodiment of the reinforcement element of the diaphragm pot; and

FIG. 4 shows an embodiment of a method for producing a membrane cup.

Detailed ways

FIG. 1 a shows the diaphragm pot 1 a in cross section. The membrane pot 1a here has a membrane 3 and walls 6a and 6b. The membrane 3 and the walls 6 a and 6 b of the membrane pot 1 a are formed in one piece as a fiber-plastic composite component. The diaphragm pot 1 a has at least two electrical connection elements 8 a and 8 b for electrically connecting a transducer element 2 , in particular a piezoelectric transducer element, to a circuit board, not shown here. The at least two electrical connection elements 8a and 8b are integrated here into the walls 6a and 6b of the diaphragm pot 1a.

In this embodiment of the membrane pot 1a, the two electrical connection elements 8a and 8b are designed as two electrical contact pins (in particular electrical pins). The contact pins 8 a and 8 b are partially embedded in the walls 6 a and 6 b of the diaphragm pot 1 a in such a way that they form a positive fit with the wall of the diaphragm pot 1 a. 6a and 6b are connected and thus integrated into said wall parts 6a and 6b.

The membrane 3 is arranged on the bottom of the membrane pot 1 a and expands the membrane together with the walls 6 a and 6 b of the diaphragm pot 1 a , which in this embodiment have a hollow-cylindrical design. The inner chamber 9 of the can-shaped part 1a. These contact pins 8 a and 8 b are arranged partially in the inner chamber 9 of the diaphragm pot 1 a.

In addition, the membrane pot 1a has a reinforcing element 10 for stiffening the walls 6a and 6b of the diaphragm pot 1a. The reinforcing element 10 is arranged completely in the inner chamber 9 of the diaphragm cup part 1a and, in this exemplary embodiment, connects the opposing surfaces of the wall parts 6a and 6b to one another. The stiffening element 10 here made of aluminum thus supports the wall parts 6 a and 6 b and thus prevents the wall parts 6 a and 6 b from vibrating together when the diaphragm 3 vibrates. In this exemplary embodiment, a plate-shaped reinforcing element 10 is arranged on the side of the inner chamber 9 of the diaphragm pot 1 a that is opposite the diaphragm 3 .

In this exemplary embodiment, the reinforcement element 10 is connected materially to the walls 6 a and 6 b (for example by means of gluing). In order to position the reinforcing element 10 in the inner chamber 9 of the diaphragm pot 1a, the wall parts 6a and 6b have an enlarged cross section for the reinforcing element 6a and 6b. The receiving surface of the component 10.

In this first embodiment, the contact pins 8 a and 8 b are arranged between the membrane 3 and the reinforcing element 10 outside the region 5 of the inner chamber 9 . In order to achieve an electrical connection of the contact pins 8 a and 8 b to the transducer element 2 nonetheless, the reinforcing element 10 has recesses, not shown here, which are used for the connection to the contact pins 8 a and 8 b The through openings of the conductive wires 7a and 7b.

The membrane 3 is constructed fiber-reinforced by a fiber mat 4 embedded in the membrane 3 .

FIG. 1 b shows a second embodiment of a diaphragm pot 1 b. In this case, in contrast to the first exemplary embodiment, the contact pins 8c and 8d are arranged as electrical connecting elements partially between the membrane 3 and the reinforcing element 10 in the region 5 of the inner chamber 9 . The transducer element 2 and the contact pins 8c and 8d are connected to each other by means of conductive lines 7c and 7d.

Furthermore, in contrast to the first embodiment, the reinforcing element 10 is integrated into the walls 26a and 26b of the diaphragm pot 1b. For this purpose, the stiffening element 10 is partially embedded in the walls 26a and 26b of the diaphragm pot 1b in such a way that the stiffening element 10 forms a positive fit with the wall of the diaphragm pot 1b. The wall portions 26a and 26b are connected.

FIG. 1c shows a third embodiment of the membrane pot 1c. Here, in contrast to the previous embodiments, the base of the membrane pot 1c, in particular the membrane 3, is constructed from a first plastic material, while the wall of the diaphragm pot 1c 16a and 16b are constructed from a second plastic material. A better vibration-mechanical decoupling between such a vibratable membrane 3 and the walls 16 a and 16 b can thus be achieved. In particular, the membrane 3 can be configured in this way to have different mechanical and/or vibration-mechanical properties than the walls 26 a and 26 b of the membrane pot 1 c.

FIG. 1d shows a fourth embodiment of the membrane pot 1d. In this case, in contrast to the previous exemplary embodiment, the two contact pins 8e and 8f rest on the thermosetting plastic material (in particular epoxy resin) of the plastic component in such a way that the two contact pins 8e and 8f There is a material-fit connection to the walls 36a and 36b of the diaphragm pot 1d.

FIG. 2 shows a sound transducer 20 with a diaphragm pot 1c, which here corresponds to the diaphragm pot 1c in FIG. 1c. The sound transducer 20 additionally has a circuit board 15 on which further electrical components 17 a and 17 b of the sound transducer 20 are arranged. The housing of the sound transducer 20 with the cover 16 is connected to the diaphragm pot 1c and seals off the interior 9 of the diaphragm cup 1c from the external environment. The plug connection 19 is responsible for the power supply and electronic control of the sound transducer 20 .

FIG. 3 shows different embodiments of reinforcing elements 50 a , 50 b or 50 c having a circular cross-section for reinforcing the wall of the diaphragm pot. The notches 51 of the left (top) stiffening element 50a, the notches 52a, 52b of the middle stiffening element 50b and the notches 53a and 53b of the right (bottom) stiffening element 50c are used for subsequent mounting of the stiffening element to the membrane In the region on the pot that is located between the contact pin integrated into the wall of the diaphragm cup and the membrane of the diaphragm pot. These indentations 51, 52a, 52b, 53a and 53b are adapted to the size of the contact pins protruding from the membrane wall and the reinforcing elements 50a, 50b or 50c can thus be pushed further inwards past these contact pins. into the inner chamber of the diaphragm can. In the case of the left (top) reinforcing element 50a, the contact pins are only arranged on one side of the diaphragm pot. The cutouts 51 , 52a and 52b also serve as lead-throughs for electrical conductors connected to the electrical connection elements. In the case of the left (lower) stiffening element 50c, a separate notch 54 is provided centrally for these conductor lines.

These notches 51 , 52 a , 52 b and 54 are only necessary if the reinforcing element is likewise integrated into the wall of the diaphragm pot and thus does not have to be arranged afterwards in the inner chamber of the diaphragm pot. Used as feed-through openings for these wires.

FIG. 4 shows a method for producing a diaphragm cup, in particular for a sound transducer, in the form of a flow diagram. Here, at least two electrical connection elements for electrically connecting a transducer element (in particular a piezoelectric transducer element) of the acoustic transducer and a circuit board are first inserted into the tool ( Especially in the mold cavity of injection molding machine tools or resin injection machine tools). Next, in method step 130 , plastic material is sprayed or injected into the mold cavity. In this case, the at least two electrical connection elements at least partially rest on the plastic material and/or are surrounded by the plastic material. Thus, the diaphragm pot is configured with a wall, a vibratable diaphragm and the at least two electrical connection elements. The at least two electrical connection elements are integrated into the diaphragm pot, in particular into the wall of the diaphragm pot. The method then ends.

Optionally, in method step 120 , a reinforcing element for reinforcing the wall of the diaphragm cup is additionally introduced into the mold cavity of the tool, in particular of the injection molding tool. Next, likewise in method step 130 , plastic material is injected into the mold cavity. In this case, the reinforcing element rests at least partially on the plastic material and/or is surrounded by the plastic material. As a result, the reinforcing element is likewise integrated into the diaphragm pot.

Also optionally, in order to manufacture the acoustic transducer with the diaphragm pot, in method step 140 a transducer element is inserted into another mold cavity of the tool, in particular of the injection molding tool middle. Next, in method step 150 , the plastic material is injected into the mold cavity. In this case, the transducer element rests at least partially on the plastic material and/or is surrounded by the plastic material. As a result, the transducer element is integrated into the diaphragm pot, in particular the bottom of the diaphragm pot.

Also optionally, in method step 160 an electrically conductive wire is arranged for electrically connecting the transducer element with the at least two electrical connection elements. In a subsequent method step 170, the housing of the sound transducer with the circuit board of the sound transducer is also bonded (in particular materially and/or form-locked) to the diaphragm pot. fit and/or non-positively) connected.

Claims (15)

1. A diaphragm pot (1a, 1b, 1c, 1d), in particular for an acoustic transducer (20), wherein said diaphragm pot (1a, 1b, 1c, 1d) has a diaphragm (3) and a wall portion (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b), In this case, the membrane (3) and the wall (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b) of the membrane pot (1a, 1b, 1c, 1d) are formed in one piece as Plastic components, especially fiber-plastic composite components, Wherein said diaphragm pot (1a, 1b, 1c, 1d) has at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) for connecting said sound transducer (20 ), the transducer element (2), especially the piezoelectric transducer element, is electrically connected to the circuit board (15), It is characterized in that, Said at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) are integrated into said diaphragm pot (1a, 1b, 1c, 1d), in particular said diaphragm pot ( 1a, 1b, 1c, 1d) in the wall portion (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b). 2. Membrane can (1a, 1b, 1c, 1d) according to claim 1, It is characterized in that, The at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) are configured as at least two electrical contacts for electrically connecting the transducer element (2) to the circuit board (15) pins, especially electrical pins. 3. Membrane can (1a, 1b, 1c, 1d) according to any one of claims 1 or 2, It is characterized in that, The membrane (3) on the bottom of said membrane pot (1a, 1b, 1c, 1d) and the wall portion (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b), in particular the hollow cylindrical wall of said diaphragm pot (1a, 1b, 1c, 1d) constitutes said diaphragm pot (1a, 1b, 1c , the inner chamber (9) of 1d), wherein said at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) are at least partially arranged in an inner chamber (9) of said diaphragm pot (1a, 1b, 1c, 1d) middle. 4. Membrane can (1a, 1b, 1c, 1d) according to any one of claims 1 to 3, It is characterized in that, The membrane pot (1a, 1b, 1c, 1d) also has at least one reinforcing element (10, 50a, 50b, 50c) for stiffening the diaphragm pot (1a, 1b, 1c, 1d ) wall portion (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b), Therein, the at least one stiffening element (10, 50a, 50b, 50c) is arranged in the inner chamber (9) of the diaphragm pot (1a, 1b, 1c, 1d), in particular completely in the In the inner chamber (9) of the diaphragm pot (1a, 1b, 1c, 1d). 5. Membrane can (1a, 1b, 1c, 1d) according to claim 4, It is characterized in that, Said at least one stiffening element (10, 50a, 50b, 50c) is integrated into a wall portion (6a, 6b, 16a, 16b, 26a, 26b, 36a) of said diaphragm pot (1a, 1b, 1c, 1d) , 36b). 6. Membrane can (1a, 1b, 1c, 1d) according to any one of claims 4 or 5, It is characterized in that, The reinforcing elements (10, 50a, 50b, 50c) connect opposite faces of the wall parts (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b) to one another, Wherein, the reinforcing element (10, 50a, 50b, 50c) is arranged in the inner chamber (9) of the diaphragm pot (1a, 1b, 1c, 1d) opposite the diaphragm (3) on the side. 7. Membrane can (1a, 1b, 1c, 1d) according to any one of claims 4 to 6, It is characterized in that, The electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) are arranged between the diaphragm (3) and the at least one stiffening element (10) outside the area (5) of the inner chamber (9). , 50a, 50b, 50c). 8. Membrane can (1a, 1b, 1c, 1d) according to any one of claims 4 to 6, It is characterized in that, At least one subregion of each of the at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) is arranged in the region (5) of the inner chamber (9) in the Between the membrane (3) and said at least one stiffening element (10, 50a, 50b, 50c). 9. Membrane can (1a, 1b, 1c, 1d) according to any one of claims 5 to 7, It is characterized in that, said reinforcing element (10, 50a, 50b, 50c) has at least one notch (52a, 52b, 53a, 53b, 54) for a conductive thread (7a, 7b, 7c, 7d, 7e, 7f), The conductive lines are connected to the electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f). 10. Membrane can (1a, 1b, 1c, 1d) according to any one of claims 1 to 9, It is characterized in that, Said at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) and/or said reinforcement elements (10, 50a, 50b, 50c) are at least partially embedded in said diaphragm pot (1a , 1b, 1c, 1d), especially in the wall portion (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b) of said diaphragm pot (1a, 1b, 1c, 1d), so that the Said at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) and/or said reinforcement elements (10, 50a, 50b, 50c) form-fit with said diaphragm pot (1a , 1b, 1c, 1d) connection. 11. Membrane can (1a, 1b, 1c, 1d) according to any one of claims 1 to 9, It is characterized in that, The at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) and/or the reinforcement elements (10, 50a, 50b, 50c) are attached to the plastic material of the plastic component, in particular a thermosetting plastic such that said at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) and/or said reinforcement elements (10, 50a, 50b, 50c) are in contact with said diaphragm pot ( 1a, 1b, 1c, 1d), in particular the walls (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b) of the diaphragm pot (1a, 1b, 1c, 1d) are bonded materially ground connection. 12. An acoustic transducer (20) comprising: - a diaphragm can (1a, 1b, 1c, 1d) according to any one of claims 1 to 11, and - a transducer element (2), in particular a piezoelectric transducer element, and - circuit board (15), wherein said diaphragm pot (1a, 1b, 1c, 1d) has a diaphragm (3) and a wall portion (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b), In this case, the membrane (3) and the wall (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b) of the membrane pot (1a, 1b, 1c, 1d) are formed in one piece as Plastic components, especially fiber-plastic composite components, Wherein said diaphragm pot (1a, 1b, 1c, 1d) has at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) for connecting said transducer elements (2 ), in particular the piezoelectric transducer element of the acoustic transducer (20) is electrically connected to the circuit board (15), and Said at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) are integrated into said diaphragm pot (1a, 1b, 1c, 1d), in particular said diaphragm pot ( 1a, 1b, 1c, 1d) in the wall portion (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b). 13. The sound transducer (20) according to claim 12, It is characterized in that, The at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) are configured as contact pins, in particular electrical plugs, In this case, the sound transducer (20) additionally has electrically conductive lines (7a, 7b, 7c, 7d, 7e, 7f) for electrically connecting the transducer element (2) to the contact pin. 14. A method for manufacturing a diaphragm can (1a, 1b, 1c, 1d) according to any one of claims 1 to 11, in particular for acoustic transducers device (20), Wherein, the method has the following method steps: - at least two electrical connection elements (8a, 8b) for electrically connecting a transducer element (2), in particular a piezoelectric transducer element of said acoustic transducer (20), to a circuit board (15) , 8c, 8d, 8e, 8f) into (100) the mold cavity of the tool, in particular the mold cavity of the tool of the injection molding machine, and - spraying (130) plastic material into said mold cavity, Wherein said at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) are at least partially: - rest on said plastic material, and/or - wrapped by said plastic material, The diaphragm pot (1a, 1b, 1c, 1d) is thus configured with a wall (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b), with a vibrating diaphragm (3) and having said at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f), wherein said at least two electrical connection elements (8a, 8b, 8c, 8d, 8e, 8f) are integrated into said diaphragm pot (1a, 1b, 1c, 1d), in particular said diaphragm pot In the wall portion (6a, 6b, 16a, 16b, 26a, 26b, 36a, 36b) of the member (1a, 1b, 1c, 1d). 15. The method of claim 14, It is characterized in that, In order to construct the vibratable membrane (3) of the membrane pot (1a, 1b, 1c, 1d), a fiber mat (4) is additionally introduced into the mold cavity of the tool, in particular the injection molding machine in the mold cavity of the tool, In this case, the fiber mat ( 4 ) is surrounded by the plastic material, in particular completely, when the plastic material is sprayed in.

Images