TW201437621A - Pressure meter - Google Patents
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Abstract
Description
本發明涉及測量儀表技術領域，特別是涉及一種能發光的壓力儀表。The invention relates to the technical field of measuring instruments, in particular to a pressure measuring instrument capable of emitting light.
目前的防震壓力儀表，用來檢測壓力源的參數值，通常使用在具有壓力源且震動大的機械設備或汽車上。當汽車運行在崎嶇不平的道路，產生震動時，儀表的巴登管由於脈衝過大，承受不了震動所造成傳動機芯磨擦，尤其細小的游絲因為共振而變型，導致儀表精度不准，嚴重時造成儀表損壞。同時，震動的脈衝和震動時指針抖動而導致指針無法明確指示參數值。為此產生了甘油防震壓力儀表，在表殼內充注甘油，由於甘油的緩衝作用，達到防震及儀表指針明確指示壓力的效果。甘油，即丙三醇，分子式： C3H8O3 ，為無色澄明黏稠液體，無臭，有暖甜味。甘油能從空氣中吸收潮氣，也能吸收硫化氫、氰化氫和二氧化硫。對石蕊呈中性，長期放在0℃的低溫處，能形成熔點為17.8℃有光澤的斜方晶體。遇強氧化劑如三氧化鉻、氯酸鉀、高錳酸鉀能引起燃燒和爆炸。因此，充注在表殼內的甘油，長時間使用後，不能保持具有電絕緣的性能，容易變質，不適合在寒冷的地方使用，也具有一定的安全隱患。The current anti-vibration pressure gauge is used to detect the parameter values of the pressure source, and is usually used in mechanical equipment or automobiles with a pressure source and high vibration. When the car runs on a bumpy road and produces vibration, the Baden tube of the instrument can not withstand the vibration caused by the shock due to the excessive pulse. Especially the small hairspring is deformed due to resonance, resulting in inaccurate accuracy of the instrument. The instrument is damaged. At the same time, the pulse of the vibration and the shaking of the pointer cause the pointer to be unable to clearly indicate the parameter value. To this end, a glycerol anti-shock pressure gauge is produced, and the glycerin is filled in the case, and due to the buffering action of glycerin, the shockproof effect is achieved by the shockproof and the meter pointer clearly indicating the pressure. Glycerin, glycerol, molecular formula: C3H8O3, is a colorless, clear and viscous liquid, odorless, warm and sweet. Glycerol absorbs moisture from the air and also absorbs hydrogen sulfide, hydrogen cyanide and sulfur dioxide. Neutral to litmus, long-term at 0 ° C low temperature, can form a melting point of 17.8 ° C shiny orthorhombic crystal. In the case of strong oxidants such as chromium trioxide, potassium chlorate, potassium permanganate can cause burning and explosion. Therefore, the glycerin charged in the watch case cannot maintain the performance of electrical insulation after being used for a long time, and is easily deteriorated, and is not suitable for use in a cold place, and has certain safety hazards.
同時，大部份的防震壓力儀表沒有設置光源，如機械設備的防震壓力儀表，晚上使用時，必需在設備外開燈才能看清指針指示，浪費能源且使用不方便。At the same time, most of the anti-vibration pressure gauges do not have a light source, such as a shockproof pressure gauge for mechanical equipment. When used at night, it is necessary to turn on the light outside the equipment to see the pointer indication, which wastes energy and is inconvenient to use.
為了解決汽車防震壓力表或機械設備的防震壓力儀表夜間無光源而不能指示的問題，而出現了外置光源的設計。如圖1所示的壓力儀表，由透明蓋部件100和表殼300包圍形成密閉的儀表腔體，銅座400穿過表殼300底部，用來感受壓力源；儀表腔體內還包括有金屬面板200、機芯、巴登管或高壓有螺旋管900，表殼300的側壁設置有膠塞800。表殼300底部設置有一半圓內凹透明窗700，外置白熾燈600和電源線500。該設計也有缺點，光源設計在底殼的半圓內凹透明窗外部，燈光經由外擴散投射入儀表腔體，壓力儀表內的巴登管或高壓有螺旋管、儀表傳動機芯會住光線，剩餘光線照到表殼內壁面301、透明蓋部件100的內表面101反射到儀表板的間隙進入儀表前窗，光線弱而不均勻，不適合較大尺寸儀表使用。且白熾燈只有幾百小時的壽命，更換不方便。In order to solve the problem that the anti-vibration pressure gauge of the automobile anti-vibration pressure gauge or mechanical equipment has no light source at night and cannot be indicated, the design of the external light source appears. The pressure gauge shown in FIG. 1 is surrounded by the transparent cover member 100 and the case 300 to form a sealed instrument cavity. The copper seat 400 passes through the bottom of the case 300 for sensing the pressure source; the instrument cavity further includes a metal panel 200. The movement, the Baden tube or the high pressure has a spiral tube 900, and the side wall of the case 300 is provided with a rubber stopper 800. The bottom of the case 300 is provided with a semicircular concave transparent window 700, an external incandescent lamp 600 and a power cord 500. The design also has disadvantages. The light source is designed outside the semi-circular concave transparent window of the bottom case, and the light is projected into the instrument cavity through the external diffusion. The Baden tube or the high-pressure spiral tube in the pressure meter and the instrument transmission movement will hold the light, and the remaining The light shines on the inner wall surface 301 of the watch case, and the inner surface 101 of the transparent cover member 100 is reflected into the gap of the instrument panel into the front window of the instrument. The light is weak and uneven, and is not suitable for use by a larger size meter. And the incandescent lamp has only a few hundred hours of life, and it is inconvenient to replace.
本發明所要解決的技術問題在於提供一種壓力儀表，為一種利於觀測者觀測參數的發光儀表，其表盤的光線均勻，具有光源壽命長、節能性好的特點。The technical problem to be solved by the present invention is to provide a pressure meter, which is a kind of illuminating meter which is convenient for an observer to observe parameters, and has a uniform light of the dial, and has the characteristics of long life of the light source and good energy saving.
本發明是通過以下技術方案來實現的：
壓力儀表，包括：
形成所述壓力儀表殼體的容器狀的表殼；
連接於所述表殼上沿的透明蓋部件；透明蓋部件和表殼包圍形成儀表腔體；
其中，所述壓力儀表包括有：
LED光源裝置，所述LED光源裝置固定在線路板上，LED光源裝置和線路板均安裝在儀表腔體中；
導光板，所述導光板位於儀表腔體中，且位於透明蓋部件的下方；LED光源裝置位於導光板下方；所述導光板採用板狀結構體，導光板的側壁局部或全部為與導光板底面相交呈傾斜角的折射面。The present invention is achieved by the following technical solutions:
Pressure gauges, including:
Forming a container-like case of the pressure gauge housing;
a transparent cover member coupled to the upper edge of the case; the transparent cover member and the case enclosing the instrument cavity;
Wherein, the pressure gauge comprises:
LED light source device, the LED light source device is fixed on the circuit board, and the LED light source device and the circuit board are all installed in the instrument cavity;
a light guide plate, the light guide plate is located in the instrument cavity and located under the transparent cover member; the LED light source device is located under the light guide plate; the light guide plate adopts a plate-like structure body, and the side wall of the light guide plate is partially or completely connected with the light guide plate The bottom surfaces intersect at a slanted angle of refraction.
在其中一個實施例中， 所述儀表腔體內充注有防震油。In one of the embodiments, the instrument chamber is filled with anti-vibration oil.
進一步地，所述防震油為矽油。Further, the anti-vibration oil is eucalyptus oil.
進一步地，所述儀表腔體內包括有：傳動機芯和巴登管，導光板的頂面上方設置有標識有指示刻度和符號的面板；所述壓力儀表包括有壓力源連接座和安裝連接部件，所述壓力源連接座和安裝連接部件分別穿過表殼的底部或側部，伸進儀表腔體中；所述線路板安裝在安裝連接部件的上部。Further, the instrument chamber includes: a transmission core and a Baden tube, and a panel marked with an indication scale and a symbol is disposed above the top surface of the light guide plate; the pressure gauge includes a pressure source connection seat and a mounting connection component The pressure source connecting seat and the mounting connecting member respectively pass through the bottom or side of the case and protrude into the instrument cavity; the circuit board is installed at an upper portion of the mounting connecting member.
進一步地，所述壓力儀表包括有指針，所述指針位於面板和透明蓋部件之間的空腔內。Further, the pressure gauge includes a pointer located within a cavity between the panel and the transparent cover member.
進一步地，所述表殼的側壁上，設置有充油止漏部件。Further, an oil-filled and leak-stopping member is disposed on a sidewall of the watch case.
本發明的有益效果如下：
本發明的壓力儀表，由於包括有：LED光源裝置和導光板，導光板位於儀表腔體中，且位於透明蓋部件的下方；LED光源裝置位於導光板下方；導光板採用板狀結構體，導光板的側壁局部或全部為與導光板底面相交呈傾斜角的折射面。所述LED光源裝置發出的光線通過導光板擴散使整個儀表可視部分亮度增加，面板上的刻度或數字等標識清晰可見，整個儀表盤面板發出柔和均勻的光線，有利於觀測者更好的識別，同時也增加了美感。The beneficial effects of the present invention are as follows:
The pressure gauge of the present invention comprises: an LED light source device and a light guide plate, the light guide plate is located in the instrument cavity and is located below the transparent cover member; the LED light source device is located below the light guide plate; the light guide plate adopts a plate-like structure body, The side walls of the light plate are partially or entirely refracting surfaces that intersect the bottom surface of the light guide plate at an oblique angle. The light emitted by the LED light source device is diffused by the light guide plate to increase the brightness of the visible portion of the entire instrument, and the scales or numerals on the panel are clearly visible, and the entire dashboard panel emits soft and uniform light, which is beneficial for the observer to better recognize. It also adds to the beauty.
由於本發明利用的LED光源裝置，優越之處在於：
1. 電壓：LED使用低壓電源，採用低電壓供電，根據產品不同而異，所以它是一個比使用高壓電源更安全的電源，特別適用於公共場所。
2. 效能：消耗能量較同光效的白熾燈減少80% 。
3. 適用性：體積很小，可以製備成各種形狀的器件，並且適合於易變的環境 。
4. 穩定性：5-10萬小時。
5. 響應時間：其白熾燈的響應時間為毫秒級，LED燈的響應時間為納秒級。
6. 對環境污染：無有害金屬汞。Due to the LED light source device utilized by the present invention, the advantages are:
1. Voltage: The LED uses a low-voltage power supply and is powered by a low voltage. Depending on the product, it is a safer power supply than a high-voltage power supply, and is especially suitable for use in public places.
2. Performance: Energy consumption is reduced by 80% compared to incandescent lamps with the same efficacy.
3. Applicability: It is small in size and can be fabricated into various shapes and is suitable for a variable environment.
4. Stability: 5-10 million hours.
5. Response time: The response time of its incandescent lamp is millisecond, and the response time of LED light is nanosecond.
6. Environmental pollution: no harmful metal mercury.
進一步地，儀表腔體內充注有矽油，LED光源裝置放置儀表內的矽油中由外殼散熱，降低了溫度，增加LED壽命，穩定性更好，壓力儀表壽命長。採用矽油還具有如下優點：
1.絕緣性能好，內部線路不漏電不短路；
2.耐高低溫，寒冷地方可用；閃點高、凝固點低，並可在-50℃～+200℃下長期使用；
3．不變質，確保儀表清晰度高，又有防震功能。Further, the instrument chamber is filled with eucalyptus oil, and the LED light source device is placed in the sputum oil in the instrument to dissipate heat from the outer casing, which reduces the temperature, increases the life of the LED, has better stability, and has a long service life of the pressure gauge. The use of eucalyptus oil also has the following advantages:
1. Good insulation performance, no leakage of internal wiring and no short circuit;
2. High and low temperature resistance, available in cold places; high flash point, low freezing point, and long-term use at -50 °C ~ +200 °C;
3. It does not degenerate, ensuring high clarity and shockproof function.
100．．．透明蓋部件100. . . Transparent cover part
300．．．表殼300. . . Case
400．．．銅座400. . . Copper seat
200．．．金屬面板200. . . Metal panel
900．．．高壓有螺旋管900. . . High pressure spiral tube
800．．．膠塞800. . . Rubber stopper
700．．．透明窗700. . . Transparent window
600．．．白熾燈600. . . Incandescent lamp
500．．．電源線500. . . power cable
301．．．內壁面301. . . Inner wall
101．．．內表面101. . . The inner surface
1．．．透明蓋部件1. . . Transparent cover part
2．．．表殼2. . . Case
3．．．導光板3. . . Light guide
4．．．壓力源連接座4. . . Pressure source connector
5．．．線路板5. . . circuit board
6．．．LED光源裝置6. . . LED light source device
60．．．燈光60. . . light
7．．．傳動機芯7. . . Transmission movement
8．．．巴登管8. . . Baden tube
9．．．充油止漏部件9. . . Oil-filled leak-stopper
10．．．安裝連接部件10. . . Mounting connection parts
31．．．面板31. . . panel
32．．．不透明反光板32. . . Opaque reflector
33．．．折射面33. . . Refractive surface
34．．．擴散層34. . . Diffusion layer
35．．．反射面35. . . Reflective surface
圖1為現有技術壓力儀表的結構示意圖。
圖2為本發明壓力儀表的實施例一的結構示意圖。
圖3為本發明壓力儀表的實施例二的結構示意圖。
圖4為本發明壓力儀表的實施例三的結構示意圖。
1 is a schematic structural view of a prior art pressure gauge.
2 is a schematic structural view of a first embodiment of a pressure gauge of the present invention.
3 is a schematic structural view of a second embodiment of the pressure gauge of the present invention.
4 is a schematic structural view of a third embodiment of the pressure gauge of the present invention.
本發明為了解決現有技術的問題，提出了一種壓力儀表，如圖2、3、4，包括：
形成所述壓力儀表殼體的容器狀的表殼2；
連接於所述表殼2上沿的透明蓋部件1；透明蓋部件1和表殼2包圍形成儀表腔體；
其中，所述壓力儀表包括有：
LED光源裝置6，所述LED光源裝置6固定在線路板5上，LED光源裝置6和線路板5均安裝在儀表腔體中；
導光板3，所述導光板3位於儀表腔體中，且位於透明蓋部件1的下方；LED光源裝置6位於導光板3下方；所述導光板3採用板狀結構體，導光板3的側壁局部或全部為與導光板底面相交呈傾斜角的折射面33。In order to solve the problems of the prior art, the present invention proposes a pressure gauge, as shown in Figures 2, 3, and 4, including:
Forming a container-like case 2 of the pressure gauge housing;
a transparent cover member 1 connected to the upper edge of the case 2; the transparent cover member 1 and the case 2 are surrounded to form a meter cavity;
Wherein, the pressure gauge comprises:
LED light source device 6, the LED light source device 6 is fixed on the circuit board 5, and the LED light source device 6 and the circuit board 5 are all installed in the instrument cavity;
a light guide plate 3, the light guide plate 3 is located in the instrument cavity, and is located below the transparent cover member 1; the LED light source device 6 is located under the light guide plate 3; the light guide plate 3 is a plate-like structure, and the side wall of the light guide plate 3 Part or all is a refractive surface 33 that intersects the bottom surface of the light guide plate at an oblique angle.
在其中一個實施例中， 所述儀表腔體內充注有防震油。In one of the embodiments, the instrument chamber is filled with anti-vibration oil.
進一步，所述防震油為矽油。Further, the anti-vibration oil is eucalyptus oil.
進一步地，所述儀表腔體內包括有：傳動機芯7和巴登管8，導光板3的頂面上方設置有標識有指示刻度和符號的面板31；所述壓力儀表包括有壓力源連接座4和安裝連接部件10，所述壓力源連接座4和安裝連接部件10分別穿過表殼2的底部，伸進儀表腔體中；所述線路板5安裝在安裝連接部件10的上部。Further, the instrument chamber includes: a transmission core 7 and a Baden tube 8, and a top surface of the light guide plate 3 is provided with a panel 31 marked with an indication scale and a symbol; the pressure gauge includes a pressure source connection seat 4 and mounting the connecting member 10, the pressure source connecting seat 4 and the mounting connecting member 10 respectively pass through the bottom of the case 2 and into the instrument cavity; the circuit board 5 is mounted on the upper portion of the mounting connecting member 10.
進一步地，所述壓力儀表包括有指針，所述指針位於面板31和透明蓋部件1之間的空腔內。Further, the pressure gauge includes a pointer located within a cavity between the panel 31 and the transparent cover member 1.
進一步地，所述表殼2的側壁上，設置有充油止漏部件9。Further, an oil-filled and leak-stop member 9 is disposed on the side wall of the watch case 2.
實施例一：
如圖2所示， 本實施例的壓力儀表，LED光源裝置6包括有多顆LED燈，安裝在線路板5外端部，LED燈與導光板3之間間隔有未被傳動機芯7和巴登管8遮擋的空間區域。Embodiment 1:
As shown in FIG. 2, the pressure meter of the embodiment, the LED light source device 6 includes a plurality of LED lamps, which are installed at the outer end of the circuit board 5, and between the LED lamp and the light guide plate 3 are separated by the transmission core 7 and The space area covered by the Baden tube 8.
優選地，導光板3的截面輪廓為上邊長於下邊的梯形，導光板3的底面附著有一層不透明反光板32。由於LED光源裝置6放置在壓力儀表內導光板3的下方，不被巴登管8或高壓螺旋管遮擋，也不被傳動機芯7遮擋。LED燈的燈光60部分直接射入導光板3的折射面33，部分通過表殼2的內側壁形成的反射面35反射後射入導光板3的折射面33，增加了面板31的亮度，並照明指針。Preferably, the cross-sectional profile of the light guide plate 3 is a trapezoid having a top side longer than the lower side, and a opaque reflector 32 is attached to the bottom surface of the light guide plate 3. Since the LED light source device 6 is placed below the light guide plate 3 in the pressure gauge, it is not blocked by the Baden tube 8 or the high pressure spiral tube, and is not blocked by the transmission core 7. The light 60 portion of the LED lamp directly enters the refractive surface 33 of the light guide plate 3, partially reflected by the reflective surface 35 formed by the inner side wall of the watch case 2, and then incident on the refractive surface 33 of the light guide plate 3, thereby increasing the brightness of the panel 31, and Lighting pointer.
壓力源連接座4採用銅座或不銹鋼座，安裝連接部件10包括有：電源連接件、螺母、密封墊等。The pressure source connecting seat 4 is a copper seat or a stainless steel seat, and the mounting and connecting member 10 includes a power supply connector, a nut, a gasket, and the like.
折射面33採用斜面這一新設計解決了壓力儀表內有巴登管8或高壓螺旋管、儀表傳動機芯7擋住光線，剩餘光線照到表殼反射到儀表板的間隙進入儀表前窗，光線弱，不能做較大尺寸儀表的問題。把斜度導光板3方式固定在儀表機芯上，表板下方形成一導光模組，光線採用側入式， 斜度導光板3面積大，也解決側入式線路在導光板3之下接線之問題， 同時解決直下式不可避免壓力儀表內有巴登管8或高壓螺旋管、儀表傳動機芯7擋住光線之陰影、造成不美觀的問題，光線均勻無陰影。The new design of the refracting surface 33 adopts the inclined surface to solve the pressure meter. The Baden tube 8 or the high-pressure spiral tube and the instrument transmission movement 7 block the light, and the remaining light shines into the gap of the instrument case and enters the front window of the instrument. Weak, can't do the problem of larger size meters. The inclined light guide plate 3 is fixed on the instrument movement, and a light guiding module is formed under the surface plate, the light is side-in type, the inclined light guide plate 3 has a large area, and the side-entry circuit is also disposed under the light guide plate 3. The problem of wiring, at the same time solve the straight-down type of unavoidable pressure instrument, there are Baden tube 8 or high-pressure spiral tube, instrument transmission movement 7 block the shadow of light, causing unsightly problems, the light is even without shadow.
實施例二：
如圖3所示， 本實施例的壓力儀表，與實施例一不同之處在於：導光板3的截面輪廓為上邊長於下邊的梯形，導光板3的底面附著有一層半透光的擴散層34。Embodiment 2:
As shown in FIG. 3, the pressure meter of this embodiment differs from the first embodiment in that the cross-sectional profile of the light guide plate 3 is a trapezoid having a top side longer than the lower side, and a semi-transmissive diffusion layer 34 is attached to the bottom surface of the light guide plate 3. .
優選地，所述擴散層34為一種油墨層，或是擴散膜。Preferably, the diffusion layer 34 is an ink layer or a diffusion film.
由於LED光源裝置6放置在壓力儀表內導光板3的下方，不被巴登管8或高壓螺旋管遮擋，也方不被傳動機芯7遮擋。LED燈的燈光60部分直接射入導光板3的折射面33射入導光板3，部分通過擴散層34射入導光板3，部分通過表殼2的內側壁形成的反射面35反射後射入導光板3的折射面33，增加了面板31的亮度，並照明指針。Since the LED light source device 6 is placed below the light guide plate 3 in the pressure gauge, it is not blocked by the Baden tube 8 or the high pressure spiral tube, and is not blocked by the transmission core 7. The light 60 of the LED lamp directly enters the refracting surface 33 of the light guide plate 3 and enters the light guide plate 3, partially enters the light guide plate 3 through the diffusion layer 34, and is partially reflected by the reflective surface 35 formed by the inner side wall of the watch case 2, and then incident. The refractive surface 33 of the light guide plate 3 increases the brightness of the panel 31 and illuminates the pointer.
實施例三：
如圖4所示，本實施例的壓力儀表，與實施例二不同之處在於：導光板3的截面輪廓為上邊短於下邊的梯形，導光板3的底面附著有一層半透光的擴散層34。由於LED光源裝置6放置在壓力儀表內導光板3的下方，不被巴登管8或高壓螺旋管遮擋，也方不被傳動機芯7遮擋。LED燈的燈光60通過擴散層34射入導光板3的折射面33後射入導光板3內部，部分被面板31的下表面反射後射入導光板3的折射面33，增加了面板31的亮度，並照明指針。Embodiment 3:
As shown in FIG. 4, the pressure gauge of the embodiment differs from the second embodiment in that the cross-sectional profile of the light guide plate 3 is a trapezoid having a top side shorter than a lower side, and a semi-transmissive diffusion layer is attached to the bottom surface of the light guide plate 3. 34. Since the LED light source device 6 is placed below the light guide plate 3 in the pressure gauge, it is not blocked by the Baden tube 8 or the high pressure spiral tube, and is not blocked by the transmission core 7. The light 60 of the LED lamp is incident on the refracting surface 33 of the light guide plate 3 through the diffusion layer 34 and then enters the inside of the light guide plate 3, and is partially reflected by the lower surface of the panel 31 and then incident on the refracting surface 33 of the light guide plate 3, thereby increasing the panel 31. Brightness and illuminate the pointer.
以上所述實施例僅表達了本發明的幾種實施方式，其描述較為具體和詳細，但並不能因此而理解為對本發明專利範圍的限制。應當指出的是，對於本領域的普通技術人員來說，在不脫離本發明構思的前提下，還可以做出若干變形和改進，這些都屬於本發明的保護範圍。因此，本發明專利的保護範圍應以所附權利要求為准。The above-mentioned embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.
1．．．透明蓋部件1. . . Transparent cover part
2．．．表殼2. . . Case
3．．．導光板3. . . Light guide
4．．．壓力源連接座4. . . Pressure source connector
5．．．線路板5. . . circuit board
6．．．LED光源裝置6. . . LED light source device
60．．．燈光60. . . light
7．．．傳動機芯7. . . Transmission movement
8．．．巴登管8. . . Baden tube
9．．．充油止漏部件9. . . Oil-filled leak-stopper
10．．．安裝連接部件10. . . Mounting connection parts
31．．．面板31. . . panel
32．．．不透明反光板32. . . Opaque reflector
33．．．折射面33. . . Refractive surface
35．．．反射面35. . . Reflective surface
Claims (10)
形成所述壓力儀表殼體的容器狀的表殼；
連接於所述表殼上沿的透明蓋部件；透明蓋部件和表殼包圍形成儀表腔體；
其特徵在於，所述壓力儀表包括有：
LED光源裝置，所述LED光源裝置固定在線路板上，LED光源裝置和線路板均安裝在儀表腔體中；
導光板，所述導光板位於儀表腔體中，且位於透明蓋部件的下方；LED光源裝置位於導光板下方；所述導光板採用板狀結構體，導光板的側壁局部或全部為與導光板底面相交呈傾斜角的折射面。Pressure gauges, including:
Forming a container-like case of the pressure gauge housing;
a transparent cover member coupled to the upper edge of the case; the transparent cover member and the case enclosing the instrument cavity;
The utility model is characterized in that the pressure gauge comprises:
LED light source device, the LED light source device is fixed on the circuit board, and the LED light source device and the circuit board are all installed in the instrument cavity;
a light guide plate, the light guide plate is located in the instrument cavity and located under the transparent cover member; the LED light source device is located under the light guide plate; the light guide plate adopts a plate-like structure body, and the side wall of the light guide plate is partially or completely connected with the light guide plate The bottom surfaces intersect at a slanted angle of refraction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098638.9A CN104075840A (en) | 2013-03-25 | 2013-03-25 | Pressure instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201437621A true TW201437621A (en) | 2014-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103110749A TW201437621A (en) | 2013-03-25 | 2014-03-21 | Pressure meter |
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| CN (1) | CN104075840A (en) |
| TW (1) | TW201437621A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104729787B (en) * | 2015-03-23 | 2017-12-19 | 东莞瑞柯电子科技股份有限公司 | A kind of explicit electronic pressure gage of lamp and its air compressor machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2242454Y (en) * | 1995-11-28 | 1996-12-11 | 杨久信 | Shock-resistant electric resistance long distance sensing pressure meter |
| CN2293821Y (en) * | 1997-04-03 | 1998-10-07 | 罗瑞杨 | Resistance film pressure signal transfer device |
| JP3976015B2 (en) * | 2004-02-04 | 2007-09-12 | 株式会社デンソー | Pressure sensor |
| CN2893656Y (en) * | 2005-12-29 | 2007-04-25 | 珠海三德艺电子有限公司 | Lamp light display intelligent instrument |
| CN2921808Y (en) * | 2006-06-19 | 2007-07-11 | 沈阳市新光工业电炉厂 | Oil-filling antivibrating bellows pressure gauge |
| CN201600219U (en) * | 2010-01-25 | 2010-10-06 | 杭州吉星仪表机械有限公司 | Pressure gauge with built-in opto-coupler sensor |
| CN202361259U (en) * | 2011-11-29 | 2012-08-01 | 奉化市金源电子有限公司 | Intelligent control LED (Light-emitting Diode) floor lamp |
| CN203203746U (en) * | 2013-03-25 | 2013-09-18 | 珠海三德艺电子有限公司 | Pressure instrument |
-
2013
- 2013-03-25 CN CN201310098638.9A patent/CN104075840A/en active Pending
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