TWI682665B - Conference telephone - Google Patents

Abstract

The invention discloses a conference telephone, which includes a base, a top cover, a button switch, and a loudspeaker. The top cover is engaged to the base and includes a main body and a supporting framework. The main body forms a sound hole. The supporting framework is connected to the main body across the sound hole. The supporting framework includes a button mount and a plurality of supporting members. The button mount is located above the sound hole. Each supporting member is connected to the button mount and the main body. The loudspeaker aligns with the sound hole and is disposed upwards on the base. The button switch is disposed on the button mount above the loudspeaker.

Description

conference call

The invention relates to a conference phone.

At present, the common conference phone usually adopts the design of upward amplification, but its internal settings may be too complicated, so that the sound generated by the speaker is difficult to smoothly and directly pass through the sound hole of the device casing, which makes the expansion The sound effect is limited. In addition, the function keys of the conference phone are provided on one side of the device casing to avoid interference with the sound amplification effect. However, when using a conference phone, participants usually sit around the conference phone, so not everyone can easily operate it. In addition, some function buttons have light indications, and some participants may not be able to effectively see the light indications due to the angle of the function keys themselves or the cover of the device casing, causing troubles in use.

In view of the problems in the prior art, an object of the present invention is to provide a conference phone with the speaker directly facing upward to obtain a direct sound amplification effect, and using a cross switch to support a key switch on its sound hole to simultaneously Reducing the impact on the sound amplification effect, it can also make the key switch easy for users to observe and use.

The conference phone according to the present invention includes a base, an upper cover, a button switch, and a speaker. The upper cover is connected to the base and includes a body and a support frame, the body forms a sound hole, the support frame is connected to the body across the sound hole, the support frame includes a button seat and a plurality of brackets, The button base is located above the sound output hole, and each bracket is connected to the button base and the body. The speaker is upwardly aligned with the sound output hole and arranged on the base. The button switch is disposed on the button base and above the speaker. By this, the sound of the loud sound can be directly propagated out through the sound hole, and the button switch The support frame can be roughly arranged in the center of the conference phone, which is convenient for users to observe and operate.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

1‧‧‧Conference phone

10‧‧‧Base

12‧‧‧Top cover

120‧‧‧Body

120a‧‧‧sound hole

120b‧‧‧key cap

122‧‧‧Support frame

1222‧‧‧Button seat

1222a‧‧‧Body

1222b‧‧‧conical structure

1224‧‧‧Bracket

1224a‧‧‧Extending direction

1224b‧‧‧Extended cross section

14‧‧‧Controller

16‧‧‧speaker

16a‧‧‧Outgoing direction

18‧‧‧button switch

18a‧‧‧Lighting instructions

182‧‧‧ circuit board

184‧‧‧ switch

186‧‧‧Elastomer

188‧‧‧Pressing part

20‧‧‧Microphone

20a‧‧‧Radio direction

22‧‧‧Electrical cable

24‧‧‧Dustproof net

26‧‧‧ Cover Net

28‧‧‧Foot pad

FIG. 1 is a schematic diagram of a conference phone according to an embodiment.

Fig. 2 is a partial exploded view of the conference phone in Fig. 1.

FIG. 3 is a cross-sectional view of the conference phone in FIG. 1 taken along line X-X.

4 is a cross-sectional view taken along line Y-Y of FIG. 3 of the bracket of the support frame of the upper cover according to another embodiment.

5 is a cross-sectional view taken along line Y-Y of FIG. 3 of the bracket of the support frame of the upper cover according to another embodiment.

6 is a cross-sectional view of the conference phone along line X-X in FIG. 1 according to another embodiment.

7 is a cross-sectional view along the line Z-Z of the conference phone in FIG.

8 is a side view of the conference phone in FIG.

Please refer to Figure 1 to Figure 3. A conference phone 1 according to an embodiment includes a base 10, an upper cover 12, a controller 14, a speaker 16, a button switch 18, and two microphones 20. The controller 14, the speaker 16, and the microphone 20 are disposed on the base 10, the upper cover 12 is connected to the base 10, and the button switch 18 is disposed on the upper cover. The controller 14 is electrically connected to the speaker 16, the button switch 18 and the microphone 20 to control the speaker 16 to generate sound, receive a trigger operation by a user via the button switch 18, and receive the sound signal via the microphone 20. In this embodiment, the controller 14 is essentially implemented by a circuit board module (which includes a circuit board and the required electronic components disposed thereon and connectors electrically connected to other components, etc., wherein the circuit board The outline matches the arrangement of the speaker 16 to avoid structural interference), but the implementation is not limited to this. In addition, in order to simplify the diagram, not all screws used to connect the components are shown in the figure

In this embodiment, the upper cover 12 includes a body 120 and a support frame 122, the body 120 and the bottom The base 10 is connected to form a sound output hole 120a, and the supporting frame 122 spans the sound output hole 120a and is connected to the body 120 (or the wall surface of the sound output hole 120a). The outline of the sound output hole 120a in the sound output direction 16a (indicated by arrows in the figure) is a circle, matching with the speaker 16 (diaphragm). For example, the outline of the sound output hole 120a next to the speaker 16 is slightly larger than the vibration of the speaker 16 The contour of the membrane, or both, is substantially the same; in addition, the sound output hole 120a has a trumpet-shaped structure or an involute structure in the sound output direction 16a. However, the present invention is not limited to this. The speaker 16 is upwardly aligned with the sound hole 120a and is disposed on the base 10, that is, the sound output direction 16a (in this embodiment, the diaphragm) of the speaker 16 (shown as a single entity in FIG. 3 to simplify the diagram) Vibration parallel to this direction generates sound) the same as the opening direction of the sound output hole 120a (or the sound output hole 120a is substantially coaxial with the speaker 16). Thereby, the sound generated by the speaker 16 can be directly propagated through the sound output hole 120a. Although the support frame 122 spans the sound output hole 120a, the sound output hole 120a still has a relatively large channel to effectively spread the sound. In addition, in this embodiment, the support frame 122 includes a button base 1222 and a plurality of brackets 1224. The button base 1222 is located above the sound hole 120a, and each bracket 1224 is individually connected to the button base 1222 and the body 120 (or sound hole 120a wall). Overall, the plurality of brackets 1224 are arranged in an X shape relative to the opening direction of the sound hole 120a, which can provide a stable technical support for the button seat 1222, and the small number of the brackets 1224 does not affect the sound reinforcement effect. Big. In practice, the number of the brackets 1224 can be more or less, and in principle, they are arranged at equal circumferential angles with respect to the opening direction of the sound output hole 120a.

In addition, the button switch 18 is disposed on the button holder 1222 and above the speaker 16. In this embodiment, the button switch 18 includes, for example but not limited to, a circuit board 182, a switch 184 disposed on the circuit board 182, an elastic body 186 disposed on the switch 184, and a pressing portion connected to the elastic body 186 188 (or integrally formed with the elastic body 186), the button switch 18 is locked on the button base 1222 via the circuit board 182 and is provided on the upper cover 12, the pressing portion 188 is exposed to the conference phone 1, the elastic body 186 (for example but not limited to rubber Made) provides the restoring force when the pressing portion 188 is pressed (ie, the user operates the button switch 18). The projection of the button holder 1222 (and the button switch 18) in the sound output direction 16a (that is, the projection on the speaker 16) is in the speaker 16, in this embodiment, the button holder 1222 (and the button switch 18) is located on this single speaker 16 voice coil square on. In practice, it can be designed such that the projection of the button holder 1222 (and the button switch 18) on the speaker 16 falls inside the diaphragm of the speaker 16 (that is, the diaphragm of the speaker 16 surrounds the button holder 1222 (and the button switch 18) on Projection on the speaker 16) to reduce the influence of the button holder 1222 (and the button switch 18) on sound propagation from the speaker 16. Therefore, in this embodiment, the button switch 18 is substantially located at the center of the conference phone 1 as a whole, and the user can see the button switch 18 (and its status) from all directions of the conference phone 1 and operate it (for example, pressing the button switch 18). For example, the push button switch 18 is a mute switch and may include a light indicator 18a (marked with a dotted line in FIG. 1; for example, a light emitting element is provided on the circuit board 182, and the elastic body 186 is made of a light-transmitting material , The pressing portion 188 has a light-transmittable pattern, such as a microphone icon with an oblique line, to realize the light indication 18a), the controller 14 can control the display state of the light indication 18a according to the button switch 18 (for example, the button switch 18 is When pressed, the light indicator 18a) is turned on; by this, the user can clearly see the status of the mute switch, which can easily avoid the situation of improper utterance (such as mistakenly speaking, coughing).

In addition, the button switch 18 is electrically connected to the controller 14 via an electrical connection line 22, and the electrical connection line 22 is fixed to one of the brackets 1224. For example, the support 1224 extends along an extension direction 1224a (indicated by arrows in FIG. 3); in this embodiment, the extension direction 1224a is a straight direction (such as the radial direction of the sound output hole 120a) and is perpendicular to the sound output direction 16a However, in practice, it is not limited to this, for example, an arc direction, that is, extending along an arc path. The electrical connection line 22 (such as but not limited to a flexible cable) extends along the bracket 1224 (that is, extends along the extension direction 1224a) and is fixed to the bracket 1224 by adhesive means (such as double-sided tape), and its two ends are respectively Connect the button switch 18 and the controller 14; thereby, the electrical connection line 22 will not vibrate excessively with the sound generated by the speaker 16. In practice, the structure of the bracket 1224 facing the speaker 16 (that is, facing downward) can be designed to be streamlined to suppress interference with the sound propagation from the speaker 16. For example, the bracket 1224 has an extended cross-section 1224b (that is, a cross-section perpendicular to the extending direction 1224a), which may be a V-shaped cross-section (as shown in FIG. 4, that is, the bracket 1224 is a V-shaped groove) or a triangular cross-section (as shown in FIG. 5 As shown, that is, the support 1224 is a triangular tube, and its top angle is downward (or toward the speaker 16), so that the sound waves generated by the speaker 16 can smoothly pass through the support 1224 without excessive sound wave reflection. In practice, the cross section can also be circular or U-shaped (ie The bracket 1224 is a round tube or a U-shaped groove). At this time, the electrical connecting wire 22 may be flat on the surface of the bracket 1224, and may also be accommodated in the inside of the groove (for a V-shaped groove or U-shaped groove) or in a hole (for a triangular tube or a round tube).

Similarly, in practice, the structure of the button holder 1222 facing the speaker 16 (that is, facing downward) can be designed to be streamlined to suppress interference with the sound propagation from the speaker 16. For example, as shown in FIG. 6, the button holder 1222 may include a body 1222a and a tapered structure 1222b connected to the body 1222a. The body 1222a is connected to the bracket 1224. The tapered structure 1222b is located below the body 1222a and protrudes toward the speaker 16. The tapered structure 1222b has a streamlined surface. In this example, the tapered structure 1222b has a concave arc surface. The sound waves generated by the speaker 16 can smoothly pass through the button base 1222 without excessive sound wave reflection. In addition, in this example, although the circuit board of the button switch 18 is disposed between the body 1222a of the button base 1222 and the tapered structure 1222b, the structural connection between the tapered structure 1222b and the body 1222a can still be achieved through appropriate structural design (For example, the circuit board of the button switch 18 has a C-shaped profile to form an escape space, so that the tapered structure 1222b can be directly connected to the body 1222a), which is not described in detail.

As shown in FIGS. 1 to 3 and FIG. 7, the microphone 20 is disposed substantially laterally on the base 10, that is, the sound collecting direction 20 a of the microphone 20 (indicated by arrows in the figure) is substantially horizontal, so that the sound output direction 16 a of the speaker 16 It is substantially perpendicular to the sound collecting direction 20a of the microphone 20 (or the included angle is about 90 degrees). This configuration helps to suppress or eliminate the interference of the speaker 16 on the microphone 20 from outside the conference phone 1. In practice, the sound collecting direction 20a of the microphone 20 can be slightly skewed upward (as shown by the dotted arrow in the figure, the sound collecting direction 20a; for example, the angle between the sound output direction 16a and the sound collecting direction 20a is about 80 degrees), which helps In order to increase the receiving range (for example, when the conference phone 1 is placed on a desktop and used). In addition, the two microphones 20 of the conference phone 1 are oppositely disposed on both sides of the base 10, which can increase the sound receiving range and also contribute to noise reduction processing.

In addition, as shown in FIGS. 1 to 3, in this embodiment, the body 120 of the upper cover 12 includes a plurality of key caps 120b (such as but not limited to volume up key, volume down key, call key, call stop key, Bluetooth) Keys, power keys, etc.) are disposed around the body 120, for example, the upper cover 12 is integrally formed (for example, the upper cover 12 is a plastic injection part), wherein the key cap 120b has a cantilever structure. The controller 14 includes corresponding switches (not shown in the figure), so that The user presses the keycap 120b to trigger the corresponding switch. Each keycap 120b can be matched with a light indicator to display the corresponding switch status, and will not be described in detail. In addition, please also refer to FIG. 8. In this embodiment, the keycap 120 b is inclined to facilitate operation by the user. For example, when the user's finger (shown in phantom in FIG. 8) presses the keycap 120b, the tilted keycap 120b is convenient for the user to touch and apply force, and the pressing force received by the conference phone 1 includes downward force, This helps the conference phone 1 to remain stationary, and the foot pads 28 (for example, but not limited to made of rubber) under the conference phone 1 can also enhance the effect that the conference phone 1 remains stationary. In addition, the conference phone 1 further includes a dustproof net 24 and a cover net 26. The dust screen 24 (such as but not limited to fiber fabric or sponge product) is disposed on the upper cover 12 and covers the sound hole 120a. A cover net 26 (such as but not limited to a metal mesh product, or a metal mesh member with a plastic frame so as to be combined with the upper cover 12) is provided on the upper cover 12 and covers the sound hole 120 a and the dust screen 24. In this embodiment, there are through holes in the middle of the dustproof net 24 and the cover net 26 to expose the button switch 18.

The above are only the preferred embodiments of the present invention, and all changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

1‧‧‧Conference phone

10‧‧‧Base

12‧‧‧Top cover

120‧‧‧Body

120a‧‧‧sound hole

120b‧‧‧key cap

122‧‧‧Support frame

1222‧‧‧Button seat

1224‧‧‧Bracket

14‧‧‧Controller

16‧‧‧speaker

16a‧‧‧Outgoing direction

18‧‧‧button switch

182‧‧‧ circuit board

184‧‧‧ switch

186‧‧‧Elastomer

188‧‧‧Pressing part

20‧‧‧Microphone

20a‧‧‧Radio direction

22‧‧‧Electrical cable

24‧‧‧Dustproof net

26‧‧‧ Cover Net

Claims (9)

A conference phone includes: a base; an upper cover connected to the base and includes a body and a support frame, the body forms a sound hole, the support frame is connected to the body across the sound hole, the support The rack includes a button base and a plurality of brackets, the button base is located above the sound output hole, each support is connected to the button base and the body; a speaker is aligned upwards and the sound output hole is arranged on the base; a button switch , Which is arranged on the button base and above the speaker; a controller is arranged on the base; and an electrical connection line, which is fixed on one of the brackets and connects the controller and the button switch. The conference phone according to claim 1, wherein the plurality of brackets are arranged in an X shape. The conference phone according to claim 1, wherein the bracket provided with the electrical connection line has an extended cross section, the extended cross section is a V-shaped cross section or a triangular cross section, and the V-shaped cross section or the triangular cross section has an apex angle , Towards the speaker. The conference phone according to claim 1, wherein the button holder includes a tapered structure protruding toward the speaker. The conference phone as described in claim 1 further includes a microphone, which is disposed on the base substantially laterally. The conference phone according to claim 1, wherein the speaker has a sound output direction, and the projection of the button switch in the sound output direction falls into the speaker. The conference phone according to claim 1, further includes a dustproof net, which is disposed on the upper cover and covers the sound output hole. The conference phone as described in claim 1, further includes a cover net, which is disposed on the cover and covers the sound output hole. The conference phone according to claim 1, wherein the body of the upper cover includes a plurality of key caps, which are inclinedly arranged around the body.

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