Interphone

Abstract

The utility model provides an interphone. The interphone comprises a shell, a loudspeaker, a mainboard, a first electric connection structure and a second electric connection structure, an accommodating cavity is formed in the shell, the loudspeaker and the main board are detachably assembled in the accommodating cavity, and the loudspeaker and the main board are oppositely arranged; the first electric connection structure is arranged on the side, facing the main board, of the loudspeaker, the second electric connection structure is arranged on the side, facing the loudspeaker, of the main board, and the first electric connection structure and the second electric connection structure are in elastic contact connection so that the loudspeaker can be electrically connected with the main board. The side, facing the main board, of the loudspeaker is provided with the first electric connection structure, and the side, facing the loudspeaker, of the main board is provided with the second electric connection structure, so that the loudspeaker and the main board can be electrically connected only by elastically contacting and connecting the first electric connection structure and the second electric connection structure. Welding is not needed in the whole process, assembly is simple, assembly line work is facilitated, and batch production of interphones is facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of wireless communication equipment, in particular to a walkie-talkie. Background Art

[0002] As a professional wireless communication tool in mobile communications, walkie-talkies are widely used in public security, civil aviation, transportation, water conservancy, railways, manufacturing, construction, services and other industries. Walkie-talkies mainly include speakers and circuit boards. Traditional walkie-talkies usually use welding to achieve electrical connection between speakers and circuit boards, but the operation is relatively complicated and is not conducive to mass production of walkie-talkies. Utility Model Content

[0003] The technical purpose of the utility model is to provide an intercom, aiming to solve the technical problem that the intercom in the related art usually adopts welding to realize the electrical connection between the speaker and the circuit board, but the operation is relatively complicated.

[0004] To solve the above technical problems, the utility model is implemented as follows: a walkie-talkie, including a shell, a speaker, a main board, a first electrical connection structure and a second electrical connection structure; a receiving cavity is formed in the shell, the speaker and the main board can be detachably assembled in the receiving cavity, and the speaker and the main board are arranged opposite to each other; the first electrical connection structure is arranged on the side of the speaker facing the main board, and the second electrical connection structure is arranged on the side of the main board facing the speaker, and the first electrical connection structure and the second electrical connection structure are elastically contacted and connected to electrically connect the speaker and the main board.

[0005] In some embodiments, the first electrical connection structure includes a flexible circuit board, and the second electrical connection structure includes an elastic member, and the elastic member is in elastic contact and electrically connected with the flexible circuit board.

[0006] In some embodiments, the flexible circuit board includes a fixed part, a connecting part and a movable part, the connecting part is connected between the fixed part and the movable part, the fixed part is arranged and electrically connected to the speaker, the movable part is provided with an electrical contact position, and the elastic member is provided with an electrode contact; the electrode contact is electrically connected to the electrical contact position.

[0007] In some embodiments, the movable portion is orthogonal to the axial direction of the speaker, and the electrical contact position is disposed on a side of the movable portion facing the mainboard.

[0008] In some embodiments, the movable portion is provided with a limiting hole, the shell is provided with a limiting column parallel to the axial direction of the speaker, and the limiting column is sleeved in the limiting hole.

[0009] In some embodiments, the shell includes a front shell and a rear shell, the front shell and the rear shell are detachably connected, the front shell and the rear shell are combined to form the receiving cavity, the front shell is provided with an assembly groove connected to the receiving cavity on the side facing the rear shell, the speaker is assembled in the assembly groove, and the mainboard is arranged on the side of the speaker away from the assembly groove.

[0010] In some embodiments, the speaker includes a sound outlet surface, the sound outlet surface faces the assembly slot; the front shell is provided with a sound outlet hole connecting the outside and the assembly slot, and the sound outlet surface covers the sound outlet hole.

[0011] In some embodiments, the intercom further includes a dustproof net, which is assembled in the assembly groove and located between the front shell and the sound outlet surface, and the dustproof net covers the sound outlet hole.

[0012] In some embodiments, the intercom further includes a waterproof membrane, which is assembled in the assembly groove and located between the front shell and the sound outlet surface, and the waterproof membrane covers the sound outlet hole.

[0013] In some embodiments, the intercom further includes a sealing member, a fixing groove is provided on a side of the front shell facing the rear shell, a convex rib is provided on a side of the rear shell facing the front shell, and the sealing member is pressed between the fixing groove and the convex rib.

[0014] Compared with the related art, the intercom in the utility model has the following beneficial effects:

[0015] 1. In the present invention, the speaker and the mainboard of the intercom are both assembled in the receiving cavity of the shell. In addition, a first electrical connection structure is provided on the side of the speaker facing the mainboard, and a second electrical connection structure is provided on the side of the mainboard facing the speaker. The first electrical connection structure and the second electrical connection structure can be electrically connected by elastic contact. Therefore, the electrical connection between the speaker and the mainboard can be achieved by only elastically contacting the first electrical connection structure and the second electrical connection structure. The whole process does not require welding, the assembly is simple, and the assembly line operation is convenient, which is conducive to the mass production of intercoms.

[0016] 2. In the present invention, the sound output direction of the intercom speaker is toward the front of the machine, that is, facing the user. The user receives sound most efficiently in this direction, and the sound loss ratio is minimized in the entire process from the sound coming out of the speaker to the sound being received by the user. Therefore, the front sound output method introduced in the present invention improves the use effect of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the first part of the structure of the intercom in the embodiment of the utility model;

[0019] Figure 2 It is an exploded view of the first part of the structure of the intercom in the embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the second part of the structure of the intercom in the embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the third structure of the intercom in the embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the connection between the speaker, the flexible circuit board and the elastic member in the embodiment of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the connection between the main board and the elastic member in the embodiment of the utility model.

[0024] In the accompanying drawings, the various reference numerals represent: 1. shell; 11. front shell; 111. limiting column; 112. sound outlet; 12. rear shell; 2. speaker; 3. main board; 4. flexible circuit board; 41. fixed part; 42. connecting part; 43. movable part; 431. electrical contact position; 432. limiting hole; 5. elastic part; 51. electrode contact; 6. dustproof net; 7. waterproof membrane; 8. sealing part. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] See also Figure 1-6 The embodiment of the utility model provides an intercom, including a shell 1, a speaker 2, a main board 3, a first electrical connection structure and a second electrical connection structure; a receiving cavity is formed in the shell 1, and the speaker 2 and the main board 3 can be detachably assembled in the receiving cavity, and the speaker 2 and the main board 3 are arranged opposite to each other; the first electrical connection structure is arranged on the side of the speaker 2 facing the main board 3, and the second electrical connection structure is arranged on the side of the main board 3 facing the speaker 2, and the first electrical connection structure and the second electrical connection structure are elastically contacted and connected to electrically connect the speaker 2 and the main board 3.

[0029] In the embodiment of the utility model, the speaker 2 and the main board 3 of the intercom are both assembled in the receiving cavity of the housing 1. In addition, a first electrical connection structure is provided on the side of the speaker 2 facing the main board 3, and a second electrical connection structure is provided on the side of the main board 3 facing the speaker 2, and the first electrical connection structure and the second electrical connection structure can be electrically connected by elastic contact, so the electrical connection between the speaker 2 and the main board 3 can be achieved by only elastically contacting and connecting the first electrical connection structure and the second electrical connection structure. The whole process does not require welding, the assembly is simple, and the assembly line operation is convenient, which is conducive to the mass production of intercoms.

[0030] For further information, see Figure 1-6 In some embodiments, the first electrical connection structure includes a flexible circuit board 4, and the second electrical connection structure includes an elastic member 5, and the elastic member 5 and the flexible circuit board 4 are elastically contacted and electrically connected.

[0031] Specifically, the elastic member 5 can be a metal spring, so when the metal spring and the flexible circuit board 4 are in elastic contact, the two can be electrically connected. In addition, since the metal spring is provided on the main board 3 and the flexible circuit board 4 is provided on the speaker 2, the main board 3 and the speaker 2 can be electrically connected through the electrical connection between the metal spring and the flexible circuit board 4.

[0032] It can be understood that the elastic member 5 can also be other structural members with elasticity and good conductivity. For example, the elastic member 5 can be elastic graphite or the like.

[0033] For further information, see Figure 1-6 In some specific embodiments, the flexible circuit board 4 includes a fixed portion 41, a connecting portion 42 and a movable portion 43, the connecting portion 42 is connected between the fixed portion 41 and the movable portion 43, the fixed portion 41 is provided and electrically connected to the speaker 2, the movable portion 43 is provided with an electrical contact position 431, and the elastic member 5 is provided with an electrode contact 51; the electrode contact 51 is electrically connected to the electrical contact position 431.

[0034] Specifically, the fixed portion 41 of the flexible circuit board 4 is used to be fixedly connected to the speaker 2, and the fixed portion 41 and the speaker 2 are electrically connected, so that the flexible circuit board 4 and the speaker 2 can be electrically connected. The movable portion 43 is used to be electrically contacted and connected with the elastic member 5 of the main board 3. The electrode contact 51 of the elastic member 5 is in contact with the electrical contact position 431 of the movable portion 43, so that the flexible circuit board 4 and the elastic member 5 can be electrically connected. At the same time, the elastic member 5 is electrically connected to the main board 3, so that the speaker 2 and the main board 3 can be electrically connected, without the need for welding process, and the assembly is simple and convenient. In addition, the main board 3 and the speaker 2 can be detachably separated, so that one of the components can be replaced.

[0035] For further information, see Figure 1-6 In some specific embodiments, the movable portion 43 is orthogonal to the axial direction of the speaker 2 , and the electrical contact position 431 is disposed on a side of the movable portion 43 facing the mainboard 3 .

[0036] Specifically, the speaker 2 and the main board 3 are arranged relative to each other, that is, the speaker 2 and the main board 3 are assembled and connected along the axial direction of the speaker 2. The movable portion 43 of the flexible circuit board 4 is orthogonal to the axial direction of the speaker 2, and the electrical contact position 431 is arranged on the side of the movable portion 43 facing the main board 3. Therefore, when the speaker 2 and the main board 3 are assembled, the electrode contact 51 of the elastic member 5 can be simultaneously contacted and connected to the electrical contact position 431 of the flexible circuit board 4, and because both the elastic member 5 and the flexible circuit board 4 are elastic, a close connection between the two can be achieved. In this way, by assembling and connecting the main board 3 and the speaker 2, the electrical connection between the two can be achieved at the same time, simplifying the assembly process.

[0037] For further information, see Figure 1-6 In some specific embodiments, the flexible circuit board 4 may be U-shaped, wherein the fixed portion 41 and the movable portion 43 are two parallel ends, and the connecting portion 42 is a curved portion. The fixed portion 41 is parallel to the surface of the speaker 2 and is fixed to the speaker 2, the connecting portion 42 protrudes from the surface of the speaker 2, and the movable portion 43 is close to the mainboard 3, and is used to achieve electrical connection with the mainboard 3. When the mainboard 3 and the speaker 2 are assembled and connected, the elastic member 5 abuts against the movable portion 43 of the flexible circuit board 4, so that the movable portion 43 will be displaced along the axial direction of the speaker 2 relative to the fixed portion 41. Since both the elastic member 5 and the movable portion 43 are elastic, the electrode contact 51 of the elastic member 5 can just contact the electrical contact position 431 connected to the movable portion 43, thereby achieving electrical connection. It can be understood that the flexible circuit board 4 can also be in other shapes, and the utility model does not make specific limitations.

[0038] For further information, see Figure 3 and Figure 5 In some specific embodiments, the movable portion 43 is provided with a limiting hole 432 , and the housing 1 is provided with a limiting column 111 parallel to the axial direction of the speaker 2 , and the limiting column 111 is sleeved in the limiting hole 432 .

[0039] Specifically, a limiting post 111 is protruded from one side of the housing 1 close to the speaker 2, and a limiting hole 432 is provided in the movable portion 43 of the flexible circuit board 4. Therefore, during assembly, the speaker 2 can be assembled in the receiving cavity, and the limiting post 111 is sleeved in the limiting hole 432, and then the main board 3 and the speaker 2 are assembled so that the elastic member 5 abuts against the movable portion 43 of the flexible circuit board 4. Since the limiting post 111 is sleeved in the limiting hole 432, the movable portion 43 can be displaced along the limiting post 111 relative to the fixed portion 41, and the movable portion 43 can be prevented from moving significantly, so that the flexible circuit board 4 and the elastic member 5 are in close contact and connection.

[0040] For further information, see Figure 1-6 In some embodiments, the shell 1 includes a front shell 11 and a rear shell 12, which are detachably connected to each other and enclose a receiving cavity. A mounting groove connected to the receiving cavity is provided on the side of the front shell 11 facing the rear shell 12, and the speaker 2 is mounted in the mounting groove. The mainboard 3 is arranged on the side of the speaker 2 facing away from the mounting groove.

[0041] Specifically, along the axial direction of the speaker 2, in the receiving cavity, from the front shell 11 to the rear shell 12, the speaker 2 and the main board 3 are included in sequence. During assembly, the speaker 2 can be first assembled in the assembly groove of the front shell 11, and then the main board 3 covers the speaker 2, while the electrode contact 51 of the elastic member 5 contacts and connects to the electrical contact position 431 of the flexible circuit board 4, and finally the rear shell 12 covers the front shell 11, so that the main board 3 and the speaker 2 are fixedly assembled in the receiving cavity. Such a setting is not only simple to assemble, but also convenient to disassemble, and does not require welding, which simplifies the assembly process and facilitates assembly line operation.

[0042] In addition, it can be understood that the limiting column 111 protrudes from a side of the housing 1 close to the speaker 2 , that is, the limiting column 111 protrudes from the front housing 11 .

[0043] For further information, see Figure 1-6 In some embodiments, the speaker 2 includes a sound outlet surface, which faces the assembly slot; the front shell 11 is provided with a sound outlet hole 112 which connects the outside and the assembly slot, and the sound outlet surface covers the sound outlet hole 112.

[0044] Specifically, the two sides of the speaker 2 are a sound outlet surface and a sound cavity hole, wherein the sound outlet surface faces the assembly slot of the front shell 11, and the sound cavity hole faces the mainboard 3. A sound outlet hole 112 connecting the outside and the accommodating cavity is provided at the position where the assembly slot is provided in the front shell 11, and the sound outlet surface covers the sound outlet hole 112. In actual use, the front shell 11 of the intercom is facing the direction of the user, that is, the sound outlet direction of the speaker 2 is facing the user. In this direction, the user receives sound with the highest efficiency, and the sound loss ratio is the smallest in the whole process from the sound coming out of the speaker 2 to the sound being received by the user to the sound being produced. Therefore, when the user is in use, no matter how noisy the external environment is, the user can clearly hear the sound of the speaker 2, thereby improving the sound use effect when the user is in use.

[0045] For further information, see Figure 2 In some specific embodiments, the intercom further includes a dustproof net 6, which is assembled in the assembly groove and located between the front shell 11 and the sound outlet surface, and the dustproof net 6 covers the sound outlet hole 112. The dustproof net 6 is arranged between the front shell 11 and the sound outlet surface of the speaker 2, and the dustproof net 6 covers the sound outlet hole 112. When external dust and the like enter the receiving cavity through the sound outlet hole 112, it will be intercepted by the dustproof net 6, and the dust and the like will not enter the sound outlet surface of the speaker 2, and will not affect the sound quality of the speaker 2, thereby ensuring the use effect and service life of the speaker 2. In addition, it can be understood that even if the dustproof net 6 covers the sound outlet hole 112, it will not affect the user's ability to hear the sound of the speaker 2 clearly.

[0046] For further information, see Figure 2In some specific embodiments, the intercom further includes a waterproof membrane 7, which is assembled in the assembly groove and located between the front shell 11 and the sound outlet surface, and the waterproof membrane 7 covers the sound outlet hole 112. By arranging the waterproof membrane 7 between the front shell 11 and the sound outlet surface of the speaker 2, and making the waterproof membrane 7 cover the sound outlet hole 112. When external water or other liquids enter the receiving cavity through the sound outlet hole 112, they will be intercepted by the waterproof membrane 7, and the water or other liquids will not enter the sound outlet surface of the speaker 2, and will not affect the sound quality of the speaker 2, etc., thereby ensuring the use effect and service life of the speaker 2. In addition, it can be understood that even if the waterproof membrane 7 covers the sound outlet hole 112, it will not affect the user's ability to hear the sound of the speaker 2 clearly.

[0047] For further information, see Figure 2 In some specific embodiments, the intercom includes a dustproof net 6 and a waterproof membrane 7, and along the axial direction of the speaker 2, in the receiving cavity, from the front shell 11 to the rear shell 12, the dustproof net 6, the waterproof membrane 7, the speaker 2 and the main board 3 are included in sequence. With this arrangement, the intercom has both dustproof and waterproof effects, which can greatly improve the use effect and service life of the speaker 2.

[0048] For further information, see Figure 2 In some specific embodiments, the intercom further includes a seal 8, a fixing groove is provided on the side of the front shell 11 facing the rear shell 12, a convex rib is provided on the side of the rear shell 12 facing the front shell 11, and the seal 8 is pressed between the fixing groove and the convex rib. By providing the seal 8 and the convex rib between the front shell 11 and the rear shell 12, the sealing performance of the intercom can be improved, the speaker 2, the main board 3, etc. in the receiving cavity are ensured not to be damaged, and the use effect and service life of the intercom are improved.

[0049] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0050] The above is a description of the technical solution provided by the utility model. For technicians in this field, according to the ideas of the embodiments of the utility model, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A walkie-talkie, characterized in that: It includes a shell, a speaker, a main board, a first electrical connection structure and a second electrical connection structure; a receiving cavity is formed in the shell, the speaker and the main board can be detachably assembled in the receiving cavity, and the speaker and the main board are arranged relative to each other; the first electrical connection structure is arranged on the side of the speaker facing the main board, and the second electrical connection structure is arranged on the side of the main board facing the speaker, and the first electrical connection structure and the second electrical connection structure are elastically contacted and connected to electrically connect the speaker and the main board.

2. The intercom according to claim 1, characterized in that: The first electrical connection structure includes a flexible circuit board, and the second electrical connection structure includes an elastic member, wherein the elastic member is in elastic contact with and electrically connected to the flexible circuit board.

3. The intercom according to claim 2, characterized in that: The flexible circuit board includes a fixed part, a connecting part and a movable part, the connecting part is connected between the fixed part and the movable part, the fixed part is arranged and electrically connected to the speaker, the movable part is arranged with an electrical contact position, and the elastic member is arranged with an electrode contact; the electrode contact is electrically connected to the electrical contact position.

4. The intercom according to claim 3, characterized in that: The movable portion is orthogonal to the axial direction of the speaker, and the electrical contact position is arranged on a side of the movable portion facing the main board.

5. The intercom according to claim 4, characterized in that: The movable part is provided with a limiting hole, the shell is provided with a limiting column parallel to the axial direction of the speaker, and the limiting column is sleeved in the limiting hole.

6. The intercom according to claim 1, characterized in that: The shell includes a front shell and a rear shell, the front shell and the rear shell are detachably connected, the front shell and the rear shell are combined to form the receiving cavity, the front shell is provided with an assembly groove connected to the receiving cavity on the side facing the rear shell, the speaker is assembled in the assembly groove, and the mainboard is arranged on the side of the speaker away from the assembly groove.

7. The intercom according to claim 6, characterized in that: The speaker comprises a sound outlet surface, the sound outlet surface faces the assembly slot; the front shell is provided with a sound outlet hole communicating with the outside and the assembly slot, and the sound outlet surface covers the sound outlet hole.

8. The intercom according to claim 7, characterized in that: The intercom further includes a dustproof net, which is assembled in the assembly groove and located between the front shell and the sound outlet surface, and covers the sound outlet hole.

9. The intercom according to claim 7, characterized in that: The intercom further comprises a waterproof membrane, which is assembled in the assembly groove and located between the front shell and the sound outlet surface, and covers the sound outlet hole.

10. The intercom according to claim 6, characterized in that: The intercom further comprises a sealing member, a fixing groove is arranged on a side of the front shell facing the rear shell, a convex rib is arranged on a side of the rear shell facing the front shell, and the sealing member is pressed tightly between the fixing groove and the convex rib.

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