201143477 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種耳機。 【先前技術】 ❹ [0002] 目前，耳機已經成為人們生活、工作中最常見的工具之 一，當人們使用耳機時通常先戴上耳機然後就直接打開 相應的音頻檔進行收聽，例如打開電腦内的音頻檔或打 開手機中的音頻檔，但有時初始音量可能會很大，用戶 沒有一個從低音到高音逐漸適應的過程，如此會損壞用 戶的聽力。 【發明内容】 [0003] 鑒於上述内容，有必要提供一種可有效保護用戶聽力的 耳機。 ❹ [0004] 一種耳機，包括一連接音頻插頭的音頻輸入端、一連接 耳塞的音頻輸出端、一彈簧及一滑動變阻器，該音頻輸 入端連接至該滑動變阻器的滑動端，該音頻輸出端電性 連接至該滑動變阻器的第一端，該滑動變阻器的滑動端 固定在該彈簧上，且在該彈簧處於初始位置時，該滑動 端位於該滑動變阻器的第一端處或靠近第一端，在該彈 簧被壓縮時該滑動端朝該滑動變阻器的第二端的方向移 動。 [0005] 相較習知技術，該耳機透過壓縮彈簧使該音頻輸入端與 音頻輸出端之間的電阻值增大，並利用彈簧的恢復彈性 形變使電阻值逐漸減小，進而控制音量逐漸增大，以在 彈簧恢復彈性形變的過程中提供一緩衝時間給用戶，使 099116046 表單編號A0101 第3頁/共16頁 0992028498-0 201143477 用戶逐漸適應高音量，而不是馬上接收高音量，故可有 效保護聽力。 【實施方式】 [0006] [0007] [0008] 請參考圖1及圖2，本發明耳機的第一較佳實施方式包括 一本體10、一音頻輸入端20及一音頻輸出端3〇，該耳機 還包括連接音頻輪入端20的音頻插頭及連接音頻輸出端 30的耳塞，由於音頻插頭及耳塞為習知技術，故此處不 具體詳細說明及對其繪圖。該本體1 〇設於耳機的適當位 置，具體可根據實際耳機的結構.而定。其他實施方式中 ，音頻輸入端及音頻輪^出端的數量可能包括兩個或更多 ，這裡僅一個為例加以說明。 該本體10開設有一圓柱形的彈簧容置腔12，該彈簧容置 腔12内设有一彈簧13，該彈簧13的一侧抵頂該彈簧容置 腔12的底部，另一側連接一按鈕14，透過按壓該按鈕14 可壓縮該彈簧13以使其在該彈簧容置腔12内向下運動至 一壓縮位置（見圖2)，鬆開該按鈕y後該彈簧13則恢復 彈性形變，並在該彈*容置腔顯向上運動至最開始的 初始位置（見圖1 )。 該本體10還平行該彈簧13安裝有—滑動變_15，該滑 動變阻器15的第-端a電性連接至該耳機的音頻輸出端3〇 ’該滑動變阻器15的滑動端c電性連接至該耳機的音頻輸 入端20。該滑動變阻器15的滑動端c還固定在該彈菁^上 ’且在該彈簧13處於初始位置時，該滑動端c位於該滑動 變阻器15的第-端A處或靠近第一端A，在該彈簧13被壓 縮時該滑動端C則隨之朝該滑動變阻器15的第二端㈣方 099116046 表單編號A0101 第4頁/共16頁 0992028498-0 201143477 向移動。換句洁說，當該按紐14未按愿時，該立瓶认 端20與音頻輸出端30之間的電阻值最小，而當該按紐^ 被按壓時，該音頻輪入端20與音頻輸出端3〇之間的電阻 值逐漸增大。 [0009] Ο 使用時，用戶先將耳機戴上，用力按下該按鈕14後立刻 打開對應的音頻檔’由於按下按钮14後該音頻輸入端 與音頻輸出端30之間的電阻值處於最大值，故耳機的立 量降低至一較低的音量，隨後該彈簧13自動恢復彈性形 變，且恢復彈性形變需要一定的時間’在此時間段内該 音頻輸入端2 0與音頻輸出端3 0之間的電阻值逐漸減小 耳機的音量逐_增大，如此—來，用戶不會在戴上耳機 後立刻聽到很大的聲音，而是音量逐漸升高，以使人耳 逐漸適應高音量，而不是馬上接收高音量，故可有效保 護聽力。 [0010] ❹ 上述方式由於需手動按下按鈕14，可能操作不是报方便 ，故本發明還提供了另一較'佳實施方式，請參考圖3至圖 6，本發明耳機的第二較佳實施方式包括一圓環形彈性支 架100及設置於該彈性支架1〇〇兩端部上的兩耳塞， 該彈性支架100位於耳塞200相對的一侧設有一可彈性拉 伸的容置區300，該容置區300内的一側固定—長方形容 置腔400，該容置腔400上方設有一滑動變阻器42〇，下 方平行該滑動變阻器420設有一彈簧430，該滑動變阻器 420的第一端A電性連接至該耳機的音頻輸出端14〇，該滑 動變阻器420的滑動端C電性連揍至該耳機的音頻輪入端 120，該滑動變阻器420的滑動端c還固定於該彈簧43〇的 099116046 表單編號A0101 第5頁/共16頁 0992028498-0 201143477 一端，且在該彈簧430處於初始位置時（圖3)，該滑動 端C位於該滑動變阻器420的第一端A處或靠近第一端A， 在該彈簧430被壓縮時該滑動端C則隨之朝該滑動變阻器 420的第二端B方向移動。該彈簧430内部還設有一拉桿 450，該拉桿450的一端設有一止擋部460，另一端固定 在該容置區300遠離該容置腔400的側壁上，且當該彈性 支架100被拉開時，該拉桿450上的止擋部460朝固定該 拉桿450的一端移動，從而壓縮彈簧430。 [0011] 使用時，用戶先將耳機的彈性支架100打開至最大角度（ 見圖4)，此時彈簧430被壓縮至最大程度，該音頻輸入 端120與音頻輸出端140之間的電阻值處於最大值，故耳 機的音量降低至一較低的水平。然後將彈性支架100戴在 用戶頭部，此時彈性支架100打開的角度（圖5及圖6)將 介於最大角度（圖4)與最小角度（圖3)之間，具體角 度由不同用戶的頭部大小來決定，此時，該拉桿450上的 止擋部460被拉回一定距離，彈簧430處於恢復彈性狀態 ，當其完全恢復彈性狀態時（圖6)，該音頻輸入端120 與音頻輸出端140之間的電阻值處於最小值，同理，用戶 不會在戴上耳機後立刻聽到很大的聲音，而是音量逐漸 變高，可有效保護聽力。 [0012] 其中，該彈簧430恢復彈性狀態的時間可透過選取合適彈 性係數的彈簧430來決定。其他實施方式中，該彈簧與滑 動變阻器可根據實際需要設計在耳機的適當位置處，不 拘泥于本發明給出的實施方式，只要滿足在收聽音頻檔 時透過彈簧控制滑動變阻器的滑動端，進而逐漸減小音 099116046 表單編號A0101 第6頁/共16頁 0992028498-0 201143477 頻輸入端與音頻輸出端之間的電阻值即可。 [0013] 綜上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所述者僅為本發明之較佳實施例，舉凡 熟悉本案技藝之人士，在爰依本發明精神所作之等效修 飾或變化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 [0014] 圖1係本發明耳機的第一較佳實施方式的局部剖視示意圖 〇 [0015] 圖2係圖1中耳機另一狀態的示意圖。 [0016] 圖3係本發明耳機的第二較佳實施方式的局部剖視示意圖 [0017] 圖4係圖3中耳機第二狀態的示意圖。 [0018] 圖5係圖3中耳機第三狀態的示意圖。 [0019] 圖6係圖3中耳機第四狀態的示意圖。 【主要元件符號說明】 [0020] 本體：10 [0021] 音頻輸入端：20、120 [0022] 音頻輸出端：30、140 [0023] 彈簧容置腔：12 [0024] 彈簧：13、430 [0025] 按鈕：14 099116046 表單編號A0101 第7頁/共16頁 0992028498-0 201143477 [0026] 滑動變阻器：15、420 [0027] 彈性支架：100 [0028] 耳塞：200 [0029] 容置區：30 0 [0030] 容置腔：400 [0031] 拉桿：450 [0032] 止擋部：460 0992028498-0 099116046 表單編號A0101 第8頁/共16頁201143477 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to an earphone. [Prior Art] ❹ [0002] At present, earphones have become one of the most common tools in people's lives and work. When people use headphones, they usually wear headphones and then directly open the corresponding audio files for listening, for example, turning on the computer. The audio file or the audio file in the phone, but sometimes the initial volume may be very large, the user does not have a process from the bass to the treble gradually adapt, which will damage the user's hearing. SUMMARY OF THE INVENTION [0003] In view of the above, it is necessary to provide an earphone that can effectively protect the user's hearing. 0004 [0004] An earphone includes an audio input terminal connected to an audio plug, an audio output terminal connected to the earplug, a spring and a sliding varistor connected to the sliding end of the sliding varistor, the audio output terminal is electrically Connected to the first end of the sliding varistor, the sliding end of the sliding varistor is fixed on the spring, and when the spring is in the initial position, the sliding end is located at or near the first end of the sliding varistor, The sliding end moves in the direction of the second end of the sliding varistor when the spring is compressed. [0005] Compared with the prior art, the earphone increases the resistance between the audio input end and the audio output end through the compression spring, and gradually reduces the resistance value by utilizing the recovery elastic deformation of the spring, thereby controlling the volume to gradually increase. Large, to provide a buffer time to the user during the spring recovery elastic deformation, so that 099116046 Form No. A0101 Page 3 / Total 16 Page 0992028498-0 201143477 The user gradually adapts to the high volume, instead of receiving the high volume immediately, it is effective Protect your hearing. [0007] [0007] [0008] Referring to FIG. 1 and FIG. 2, a first preferred embodiment of the earphone of the present invention includes a body 10, an audio input terminal 20 and an audio output terminal 3? The earphone further includes an audio plug for connecting the audio wheel terminal 20 and an earplug for connecting the audio output terminal 30. Since the audio plug and the earplug are conventional techniques, they are not specifically described and illustrated herein. The body 1 is disposed at an appropriate position of the earphone, depending on the structure of the actual earphone. In other embodiments, the number of audio input terminals and audio wheel outputs may include two or more, and only one of them is described as an example. The body 10 defines a cylindrical spring receiving cavity 12, and a spring 13 is disposed in the spring receiving cavity 12. One side of the spring 13 abuts against the bottom of the spring receiving cavity 12, and the other side is connected with a button 14. By pressing the button 14, the spring 13 can be compressed to move downwardly in the spring receiving cavity 12 to a compressed position (see FIG. 2). After the button y is released, the spring 13 is restored to elastic deformation and The bomb * housing cavity moves up to the initial position (see Figure 1). The body 10 is further mounted with a sliding change _15 in parallel with the spring 13 . The first end a of the sliding varistor 15 is electrically connected to the audio output end 3 of the earphone. The sliding end c of the sliding varistor 15 is electrically connected to The audio input 20 of the headset. The sliding end c of the sliding varistor 15 is also fixed on the elastic body and when the spring 13 is in the initial position, the sliding end c is located at or near the first end A of the sliding varistor 15 When the spring 13 is compressed, the sliding end C is then moved toward the second end (four) side of the sliding varistor 15 099116046 Form No. A0101 Page 4 / Total 16 Page 0992028498-0 201143477. In other words, when the button 14 is not as desired, the resistance between the bottle end 20 and the audio output 30 is the smallest, and when the button is pressed, the audio wheel 20 is The resistance value between the audio output terminals 3〇 gradually increases. [0009] Ο When using, the user puts on the earphone first, and presses the button 14 hard to open the corresponding audio file immediately. Since the resistance value between the audio input terminal and the audio output terminal 30 is maximum after pressing the button 14 Value, so the volume of the earphone is reduced to a lower volume, then the spring 13 automatically recovers the elastic deformation, and it takes a certain time to recover the elastic deformation. During this time period, the audio input terminal 20 and the audio output terminal 3 0 The resistance between the values gradually decreases the volume of the earphone by _, so that the user does not hear a loud sound immediately after wearing the earphone, but the volume gradually increases, so that the human ear gradually adapts to the high volume. Instead of receiving high volume immediately, it can effectively protect your hearing. [0010] ❹ In the above manner, since the button 14 needs to be manually pressed, the operation may not be convenient. Therefore, the present invention further provides another preferred embodiment. Referring to FIG. 3 to FIG. 6, the second preferred embodiment of the earphone of the present invention. The embodiment includes a circular elastic bracket 100 and two earplugs disposed on opposite ends of the elastic bracket 1 . The elastic bracket 100 is disposed on an opposite side of the earplug 200 and is provided with an elastically stretchable accommodating area 300. One side of the accommodating area 300 is fixed to the rectangular accommodating cavity 400, and a sliding varistor 42 is disposed above the accommodating cavity 400. The sliding varistor 420 is disposed in parallel with a spring 430. The first end A of the sliding varistor 420 The sliding end C of the sliding varistor 420 is electrically connected to the audio wheel end 120 of the earphone, and the sliding end c of the sliding varistor 420 is also fixed to the spring 43〇. 099116046 Form No. A0101 Page 5 of 16 0992028498-0 201143477 One end, and when the spring 430 is in the initial position (Fig. 3), the sliding end C is located at or near the first end A of the sliding rheostat 420 One end A, When the spring 430 is compressed, the sliding end C moves toward the second end B of the sliding varistor 420. The inside of the spring 430 is further provided with a pull rod 450. One end of the rod 450 is provided with a stop portion 460, and the other end is fixed on the side wall of the accommodating area 300 away from the accommodating chamber 400, and when the elastic bracket 100 is pulled apart At this time, the stopper portion 460 on the pull rod 450 moves toward the end to which the pull rod 450 is fixed, thereby compressing the spring 430. [0011] When in use, the user first opens the elastic bracket 100 of the earphone to the maximum angle (see FIG. 4), at which time the spring 430 is compressed to the maximum extent, and the resistance value between the audio input terminal 120 and the audio output terminal 140 is at The maximum value, so the volume of the headphones is reduced to a lower level. Then the elastic bracket 100 is worn on the user's head, and the angle at which the elastic bracket 100 is opened (Fig. 5 and Fig. 6) will be between the maximum angle (Fig. 4) and the minimum angle (Fig. 3), and the specific angle is different users. The size of the head is determined. At this time, the stopper 460 on the rod 450 is pulled back a certain distance, and the spring 430 is in a state of restoring elasticity. When it is fully restored to the elastic state (Fig. 6), the audio input terminal 120 is The resistance value between the audio output terminals 140 is at a minimum value. Similarly, the user does not hear a large sound immediately after wearing the earphone, but the volume gradually becomes higher, which can effectively protect the hearing. [0012] wherein the time during which the spring 430 returns to the elastic state can be determined by selecting a spring 430 of a suitable elastic coefficient. In other embodiments, the spring and the sliding varistor can be designed at appropriate positions of the earphone according to actual needs, and do not adhere to the embodiment given by the present invention, as long as the sliding end of the sliding varistor is controlled by the spring when listening to the audio file. Decrease the tone 099116046 Form No. A0101 Page 6 / Total 16 Page 0992028498-0 201143477 The resistance between the frequency input and the audio output can be. [0013] In summary, the present invention complies with the requirements of the invention patent, and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0014] FIG. 1 is a partial cross-sectional view showing a first preferred embodiment of the earphone of the present invention. [0015] FIG. 2 is a schematic view showing another state of the earphone of FIG. 3 is a partial cross-sectional view showing a second preferred embodiment of the earphone of the present invention. [0017] FIG. 4 is a schematic view showing a second state of the earphone of FIG. [0018] FIG. 5 is a schematic diagram of a third state of the earphone of FIG. 3. 6 is a schematic diagram of a fourth state of the earphone of FIG. 3. [Main component symbol description] [0020] Body: 10 [0021] Audio input: 20, 120 [0022] Audio output: 30, 140 [0023] Spring accommodating cavity: 12 [0024] Spring: 13, 430 [ 0025] Button: 14 099116046 Form No. A0101 Page 7 / Total 16 Page 0992028498-0 201143477 [0026] Sliding Rheostat: 15, 420 [0027] Elastic Stand: 100 [0028] Ear Plug: 200 [0029] accommodating area: 30 0 [0030] accommodating chamber: 400 [0031] lever: 450 [0032] Stop: 460 0992028498-0 099116046 Form number A0101 Page 8 of 16