CN1087868C - The structure of assembling and positioning the eccentric pole piece of the electron gun in the cathode ray tube - Google Patents

The structure of assembling and positioning the eccentric pole piece of the electron gun in the cathode ray tube Download PDF

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CN1087868C
CN1087868C CN97103024A CN97103024A CN1087868C CN 1087868 C CN1087868 C CN 1087868C CN 97103024 A CN97103024 A CN 97103024A CN 97103024 A CN97103024 A CN 97103024A CN 1087868 C CN1087868 C CN 1087868C
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pole piece
positioning
eccentric
assembling
electron gun
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CN1193806A (en
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叶俊显
张祥麟
王祺灿
李享松
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Chunghwa Picture Tubes Ltd
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Chunghwa Picture Tubes Ltd
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Abstract

The invention is a structure for accurately positioning an eccentric pole piece when assembling an electron gun in a cathode ray tube, which utilizes a three-axis positioning mode of an assembling fixture to assemble the pole piece of the electron gun in the cathode ray tube, and when the through holes at two sides of the pole piece for passing electron beams are eccentric apertures, the eccentric pole piece can be accurately positioned without deviation when assembling the eccentric pole piece by a positioning element of the invention, structures which can be mutually embedded and buckled are respectively arranged at the corresponding positions of the positioning element and the eccentric pole piece, and the eccentric pole piece is positioned at a fixed position by the tight embedding between the structures which can be mutually embedded and buckled.

Description

阴极射线管中电子枪的偏心极片组装定位的结构The structure of assembling and positioning the eccentric pole piece of the electron gun in the cathode ray tube

本发明涉及一种阴极射线管中电子枪组装时令偏心极片准确定位的结构，尤指一种通过固定元件，使得阴极射线管在组装电子枪的偏心极片时，能使偏心极片准确地定位在固定位置上，以使电子枪的三束电子束能准确投射在显像屏幕上的偏心极片准确定位的结构。The invention relates to a structure for accurately positioning the eccentric pole piece when an electron gun is assembled in a cathode ray tube, especially a structure for accurately positioning the eccentric pole piece when the cathode ray tube is assembled with the eccentric pole piece of the electron gun through a fixing element. Fixed position, so that the three electron beams of the electron gun can be accurately projected on the structure of the eccentric pole piece on the imaging screen.

目前阴极射线管的应用非常普遍，凡传统的彩色电视乃至高分辨率的电脑监视器，甚至医学上超高清晰度的其它应用，均利用到阴极射线管，该等传统的阴极射线管的电子枪，在彩色画面情形下，包含一组呈水平向直线排列的阴极(即分别产生红、绿、蓝等电子束的三只阴极)，该阴极发射出的电子将于该电子枪中形成三束电子束，此三束电子束再经由聚焦电极及阳极所组成的主透镜焦聚后，将被投射在显像屏幕上，并经扫描后，在显像屏幕上构成彩色图像，而单色阴极射线管，则仅有一电子束，被投射在屏幕上。At present, the application of cathode ray tubes is very common. All traditional color TVs, high-resolution computer monitors, and even other applications of ultra-high-definition medicine use cathode ray tubes. The electron guns of these traditional cathode ray tubes , in the case of a color picture, it includes a group of cathodes arranged in a horizontal line (that is, three cathodes that generate red, green, and blue electron beams respectively), and the electrons emitted by the cathodes will form three beams of electrons in the electron gun After the three electron beams are focused by the main lens composed of the focusing electrode and the anode, they will be projected on the display screen, and after scanning, a color image will be formed on the display screen, while the monochromatic cathode ray tube, there is only one electron beam, which is projected on the screen.

传统阴极射线管在组装电子枪的极片时，采用组装夹具的三轴定位方式，而在各极片上设有供三束电子束通过的贯穿孔，如此将各极片的三贯穿孔穿套在组装夹具的三个定位轴上。只是，该极片两侧的贯穿孔为偏心孔径或贯穿孔的孔径大于定位轴轴径时，孔径与组装夹具的定位轴之间所产生的空隙，会造成极片因该空隙而产生旋转偏移现象，导致组装精度不高，使电子枪的三束电子束无法准确投射在显像屏幕上。When assembling the electrode pieces of the electron gun in the traditional cathode ray tube, the three-axis positioning method of the assembly fixture is adopted, and there are through holes for the three electron beams to pass through each electrode piece, so that the three through holes of each electrode piece are set on the Assemble the three positioning axes of the jig. However, when the through holes on both sides of the pole piece are eccentric apertures or the diameter of the through hole is larger than the axis diameter of the positioning shaft, the gap generated between the hole diameter and the positioning shaft of the assembly fixture will cause the pole piece to rotate due to the gap. Due to the shift phenomenon, the assembly accuracy is not high, so that the three electron beams of the electron gun cannot be accurately projected on the imaging screen.

本发明的目的，在于提供一种阴极射线管中电子枪组装时令偏心极片准确定位的结构。The object of the present invention is to provide a structure for accurately positioning the eccentric pole piece when the electron gun is assembled in the cathode ray tube.

为了实现本发明的目的，本发明为一种阴极射线管中电子枪的偏心极片组装定位的结构，包括具有与该偏心极片的三个贯穿孔相对应的三个定位轴的组装夹具，及组装所述偏心极片的定位元件，所述定位元件为一隔片，其为一板片，所述隔片的大小大于极片，且所述隔片上设有对应于三个定位轴的贯穿孔，在所述隔片一端凸伸有一凸起部，所述凸起部的高度等于或小于极片厚度，在所述凸起部上设有一母嵌扣元件，而所述极片在对应于所述母嵌扣元件的一端设有相配的公嵌扣元件，通过所述定位元件与所述偏心极片两者上的母、公嵌扣元件之间的紧密嵌合，将所述偏心极片组装定位在固定位置上。In order to achieve the purpose of the present invention, the present invention is a structure for assembling and positioning the eccentric pole piece of an electron gun in a cathode ray tube, including an assembly fixture having three positioning axes corresponding to the three through holes of the eccentric pole piece, and Assembling the positioning element of the eccentric pole piece, the positioning element is a spacer, which is a plate, the size of the spacer is larger than the pole piece, and the spacer is provided with through holes corresponding to the three positioning axes Hole, protruding from one end of the spacer has a protruding part, the height of the protruding part is equal to or less than the thickness of the pole piece, a female snap-in element is provided on the protruding part, and the pole piece is corresponding A matching male snap-in element is provided at one end of the female snap-in element, and the eccentric snap-in element is fixed by the tight fit between the positioning element and the female and male snap-in snap-in elements on both the eccentric pole pieces. The pole piece assembly is positioned at a fixed position.

因此，本发明采用上述结构后，通过本发明的定位元件可以大幅改善已有组装技术的缺点，令偏心极片组装时能很准确地定位，使电子枪的三束电子束能准确投射在显像屏幕上。Therefore, after the present invention adopts the above-mentioned structure, the shortcomings of the existing assembly technology can be greatly improved by the positioning element of the present invention, so that the eccentric pole pieces can be positioned accurately during assembly, so that the three electron beams of the electron gun can be accurately projected on the image. on the screen.

下面结合附图，对本发明的实施例说明如下：Below in conjunction with accompanying drawing, embodiment of the present invention is described as follows:

图1是本发明的电子枪整体结构示意图。Fig. 1 is a schematic diagram of the overall structure of the electron gun of the present invention.

图2是本发明的第一实施例的固定元件示意图。Fig. 2 is a schematic diagram of the fixing element of the first embodiment of the present invention.

图3是本发明的电子枪极片组装后的示意图。Fig. 3 is a schematic diagram of the pole piece of the electron gun assembled in the present invention.

图4是本发明的第二实施例的结构示意图。Fig. 4 is a schematic structural diagram of the second embodiment of the present invention.

参阅图1、图2所示，本发明是一种阴极射线管中电子枪组装时令偏心极片准确定位的结构，主要指利用组装夹具1的三轴定位方式组装阴极射线管中电子枪10的多个极片2，该等极片2分别设有三个分别令三束电子束通过的贯穿孔21、22、23，其中，该等极片包括有偏心极片2′，其两侧令电子束通过的贯穿孔21、22、23为偏心孔径，另外，组装夹具1设有三个定位轴11、12、13，使极片2的贯穿孔21、22、23分别穿套在定位轴11、12、13上。Referring to Fig. 1 and Fig. 2, the present invention is a structure for accurate positioning of eccentric pole pieces during assembly of an electron gun in a cathode ray tube, mainly referring to a plurality of electron guns 10 assembled in a cathode ray tube using a three-axis positioning method of an assembly fixture 1. The pole pieces 2 are respectively provided with three through holes 21, 22, 23 through which the three beams of electron beams pass, wherein the pole pieces include an eccentric pole piece 2', and the two sides of the pole pieces allow the electron beams to pass through The through holes 21, 22, 23 are eccentric apertures. In addition, the assembly fixture 1 is provided with three positioning shafts 11, 12, 13, so that the through holes 21, 22, 23 of the pole piece 2 are respectively fitted on the positioning shafts 11, 12, 13 on.

本发明中为防止因偏心极片2′的偏心孔径21、23与定位轴11、13之间所产生的空隙造成偏心极片2′的偏移，设有一定位元件，该定位元件为一隔片3，其为一板片，该隔片3的大小略大于偏心极片2′，且隔片3上也设有对应于三个定位轴11、12、13的贯穿孔31、32、33，于隔片3一端凸伸有一凸起部34，该凸起部34的高度等于或略小于偏心极片2′厚度，本实施例中，于凸起部34上设有一母嵌扣元件51，该母嵌扣元件51为一凹槽511，而偏心极片2′在对应于该凹槽511的一端则设有相配的公嵌扣元件52，该公嵌扣元件52可为凸柱521，本发明中也可在该凸起部34上设有一凸柱521，偏心极片2′上则设有相配的凹槽511，而该隔片3的贯穿孔31、32、33位置及大小须在偏心极片2′所欲达到组装精度的范围内。In the present invention, in order to prevent the offset of the eccentric pole piece 2' due to the gap generated between the eccentric apertures 21, 23 of the eccentric pole piece 2' and the positioning shafts 11, 13, a positioning element is provided, which is a spacer Sheet 3, which is a plate, the size of the spacer 3 is slightly larger than the eccentric pole piece 2', and the spacer 3 is also provided with through holes 31, 32, 33 corresponding to the three positioning axes 11, 12, 13 , a protrusion 34 protrudes from one end of the spacer 3, and the height of the protrusion 34 is equal to or slightly smaller than the thickness of the eccentric pole piece 2′. In this embodiment, a female snap-in element 51 is provided on the protrusion 34 , the female snap-in element 51 is a groove 511, and the eccentric pole piece 2' is provided with a matching male snap-in element 52 at one end corresponding to the groove 511, and the male snap-in element 52 can be a boss 521 In the present invention, a protruding column 521 can also be provided on the raised portion 34, and a matching groove 511 can be provided on the eccentric pole piece 2′, and the positions and sizes of the through holes 31, 32, 33 of the spacer 3 It must be within the range where the assembly accuracy of the eccentric pole piece 2' is desired to be achieved.

参照图2、图3所示，当开始组装电子枪10的偏心极片2′时，即先将一隔片3穿套于三定位轴11、12、13上，接着将一偏心极片2′也穿套于组装夹具1的三定位轴11、12、13上，使偏心极片2′置于隔片3上，且偏心极片2′上的凸柱521嵌扣于隔片3上的凹槽511中，使偏心极片2′紧嵌固在隔片3上，而定位住，如此，即使偏心极片2′的贯穿孔21、23与组装夹具1的定位轴11、13间产生空隙211、231，也无法令偏心极片2′经由该空隙211、231旋转偏移，从而令所组装的偏心极片2′皆在组装的精度范围之内，使电子枪10的三束电子束能准确投射在显像屏幕上。Referring to Fig. 2 and Fig. 3, when the eccentric pole piece 2' of the electron gun 10 is started to be assembled, a spacer 3 is inserted on the three positioning shafts 11, 12, 13, and then an eccentric pole piece 2' It is also threaded on the three positioning shafts 11, 12, 13 of the assembly fixture 1, so that the eccentric pole piece 2' is placed on the spacer 3, and the convex post 521 on the eccentric pole piece 2' is embedded in the spacer 3. In the groove 511, the eccentric pole piece 2' is tightly embedded on the spacer 3 to be positioned, so that even if the through holes 21, 23 of the eccentric pole piece 2' and the positioning shafts 11, 13 of the assembly fixture 1 produce The gaps 211, 231 also cannot make the eccentric pole piece 2' rotate and offset through the gap 211, 231, so that the assembled eccentric pole piece 2' is all within the accuracy range of assembly, so that the three electron beams of the electron gun 10 Can be accurately projected on the imaging screen.

再参照图1所示，当将电子枪的所有极片2、2′组装完毕后，即将该等极片2、2′的两侧分别固定在一固定架4上，此时，组装人员即可将组装夹具1的三定位轴11、12、13从极片2贯穿孔21、22、23中抽出，再将隔片3从极片2中抽离，而组装成一完整的阴极射线管的电子枪10。Referring to Fig. 1 again, after all the pole pieces 2, 2' of the electron gun are assembled, the two sides of the pole pieces 2, 2' are respectively fixed on a fixed frame 4, at this moment, the assembler can The three positioning shafts 11, 12, 13 of the assembly fixture 1 are extracted from the through holes 21, 22, 23 of the pole piece 2, and the spacer 3 is pulled out from the pole piece 2 to assemble a complete cathode ray tube electron gun 10.

图4示出本发明的第二实施例，其中，在对应于偏心极片2′组装位置处的两侧各设有一弹性机构6，该弹性机构6包括有一中空管体61，管体61一端固设在组装夹具1的外框14上，另一端则在对应于偏心极片2′的位置处设有一凸伸于管体61外的定位元件的公嵌扣元件，该公嵌扣元件为钢珠71，而在管体61设置有钢珠71的一端形成的一缩颈部611，经由该缩颈部611防止钢珠71弹出掉落，并限制钢珠71弹出量，而钢珠71在管体61内的一端抵靠有一弹性元件62，其可为弹簧，而偏心极片2′则设有定位元件的母嵌扣元件，该母嵌扣元件为一缺槽72，另，在其中一弹性机构6的管体61一端锁设有一调整螺丝63，该调整螺丝63抵靠在弹性元件62上，使经由调整螺丝63调整弹性元件62的弹力，且欲更换弹性元件62或钢珠71时，只须将调整螺丝63从管体61处松开，即可更换弹性元件62或钢珠71，非常方便。Fig. 4 shows the second embodiment of the present invention, wherein, on both sides corresponding to the eccentric pole piece 2 ' assembly position, respectively be provided with an elastic mechanism 6, this elastic mechanism 6 comprises a hollow tube body 61, tube body 61 One end is fixed on the outer frame 14 of the assembly fixture 1, and the other end is provided with a male snap-in element protruding from the positioning element outside the tube body 61 at a position corresponding to the eccentric pole piece 2'. The male snap-in element Steel ball 71, and a constricted portion 611 formed at one end of the steel ball 71 is provided on the tube body 61, through which the constricted portion 611 prevents the steel ball 71 from popping out and limits the amount of steel ball 71 popping out, and the steel ball 71 is placed on the tube body 61 One end inside leans against an elastic element 62, which can be a spring, and the eccentric pole piece 2' is provided with a female snap-in element of the positioning element, which is a slot 72, and in addition, one of the elastic mechanisms One end of the tube body 61 of 6 is locked with an adjusting screw 63, and the adjusting screw 63 leans against the elastic element 62, so that the elastic force of the elastic element 62 can be adjusted through the adjusting screw 63, and when the elastic element 62 or the steel ball 71 is to be replaced, only the The elastic element 62 or the steel ball 71 can be replaced by loosening the adjusting screw 63 from the pipe body 61, which is very convenient.

本实施例中，当组装极片2时，如果非偏心极片2通过弹性机构6位置处时，会抵触到钢珠71，而钢珠71则往管体61内滚动且挤压弹性元件62，使非偏心极片2能顺利通过，而当偏心极片2′组装穿套于定位轴11、12、13且位于弹性机构6位置处时，即经由弹性元件62的弹力使钢珠71凸伸于偏心极片2′的缺槽72中，使偏心极片2′无法旋转偏移，而定位于组装精度的范围内。In this embodiment, when the pole piece 2 is assembled, if the non-eccentric pole piece 2 passes through the position of the elastic mechanism 6, it will collide with the steel ball 71, and the steel ball 71 will roll into the tube body 61 and squeeze the elastic element 62, so that The non-eccentric pole piece 2 can pass through smoothly, and when the eccentric pole piece 2' is assembled and sleeved on the positioning shafts 11, 12, 13 and located at the position of the elastic mechanism 6, the steel ball 71 protrudes from the eccentric through the elastic force of the elastic element 62. In the notch 72 of the pole piece 2', the eccentric pole piece 2' cannot be rotated and shifted, but is positioned within the range of assembly accuracy.

综上所述，经由本发明的定位元件，使阴极射线管在组装电子枪的偏心极片2′时，能使偏心极片2′准确地定位在固定位置上，从而使电子枪的三束电子束能准确投射在显像屏幕上。In summary, through the positioning element of the present invention, when the cathode ray tube is assembled with the eccentric pole piece 2' of the electron gun, the eccentric pole piece 2' can be accurately positioned at a fixed position, so that the three electron beams of the electron gun Can be accurately projected on the imaging screen.

Claims (4)

1、一种阴极射线管中电子枪的偏心极片组装定位的结构，包括具有与该偏心极片的三个贯穿孔相对应的三个定位轴的组装夹具，及组装所述偏心极片的定位元件，其特征在于，所述定位元件为一隔片，其为一板片，所述隔片的大小大于极片，且所述隔片上设有对应于三个定位轴的贯穿孔，在所述隔片一端凸伸有一凸起部，所述凸起部的高度等于或小于极片厚度，在所述凸起部上设有一母嵌扣元件，而所述极片在对应于所述母嵌扣元件的一端设有相配的公嵌扣元件，通过所述定位元件与所述偏心极片两者上的母、公嵌扣元件之间的紧密嵌合，将所述偏心极片组装定位在固定位置上。1. A structure for assembling and positioning the eccentric pole piece of an electron gun in a cathode ray tube, including an assembly fixture having three positioning axes corresponding to the three through holes of the eccentric pole piece, and a positioning device for assembling the eccentric pole piece The element is characterized in that the positioning element is a spacer, which is a plate, the size of the spacer is larger than the pole piece, and the spacer is provided with through holes corresponding to the three positioning axes. There is a protruding portion protruding from one end of the spacer, the height of the protruding portion is equal to or less than the thickness of the pole piece, a female snap-fit element is provided on the protruding portion, and the pole piece corresponds to One end of the snap-in element is provided with a matching male snap-in element, through the tight fit between the positioning element and the female and male snap-in elements on both the eccentric pole piece, the eccentric pole piece is assembled and positioned in a fixed position. 2、一种阴极射线管中电子枪的偏心极片组装定位的结构，包括具有与该偏心极片的三个贯穿孔相对应的三个定位轴的组装夹具，及组装所述偏心极片的定位元件，其特征在于，所述定位元件为一隔片，其为一板片，所述隔片的大小大于极片，且所述隔片上设有对应于三个定位轴的贯穿孔，在所述隔片一端凸伸有一凸起部，所述凸起部的高度等于或小于极片厚度，在所述凸起部上设有一公嵌扣元件，而所述极片在对应于所述公嵌扣元件的一端设有相配的母嵌扣元件，通过所述定位元件与所述偏心极片两者上的公、母嵌扣元件之间的紧密嵌合，将所述偏心极片组装定位在固定位置上。2. A structure for assembling and positioning the eccentric pole piece of an electron gun in a cathode ray tube, including an assembly fixture having three positioning axes corresponding to the three through holes of the eccentric pole piece, and a positioning device for assembling the eccentric pole piece The element is characterized in that the positioning element is a spacer, which is a plate, the size of the spacer is larger than the pole piece, and the spacer is provided with through holes corresponding to the three positioning axes. There is a protruding portion protruding from one end of the spacer, the height of the protruding portion is equal to or less than the thickness of the pole piece, and a male snap-fit element is arranged on the protruding portion, and the pole piece corresponds to the pole piece. One end of the snap-in element is provided with a matching female snap-in element, and the eccentric pole piece is assembled and positioned through the tight fit between the positioning element and the male and female snap-in elements on both the eccentric pole piece in a fixed position. 3、如权利要求1或2所述的阴极射线管中电子枪的偏心极片组装定位的结构，所述母嵌扣元件为凹槽。3. The structure for assembling and positioning the eccentric pole piece of the electron gun in the cathode ray tube according to claim 1 or 2, the said female engaging element is a groove. 4、如权利要求1或2所述的阴极射线管中电子枪的偏心极片组装定位的结构，所述公嵌扣元件为凸柱。4. The structure for assembling and positioning the eccentric pole piece of the electron gun in the cathode ray tube according to claim 1 or 2, wherein the male interlocking element is a convex post.
CN97103024A 1997-03-13 1997-03-13 The structure of assembling and positioning the eccentric pole piece of the electron gun in the cathode ray tube Expired - Fee Related CN1087868C (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699611B (en) * 2009-10-23 2011-06-22 江苏达胜加速器制造有限公司 Electron gun assembling method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685891A (en) * 1984-03-23 1987-08-11 U.S. Philips Corporation Method of assembling an integrated electron gun system
JPS6366819A (en) * 1986-09-05 1988-03-25 Nec Corp Electron gun assembling device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685891A (en) * 1984-03-23 1987-08-11 U.S. Philips Corporation Method of assembling an integrated electron gun system
JPS6366819A (en) * 1986-09-05 1988-03-25 Nec Corp Electron gun assembling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699611B (en) * 2009-10-23 2011-06-22 江苏达胜加速器制造有限公司 Electron gun assembling method

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Assignee: CPT (Fuzhou) Co., Ltd.

Assignor: CPT (Bermuda) Co., Ltd.

Contract fulfillment period: In October 31, 2007, 5 years

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Denomination of invention: Structure for assembling and positioning eccentric pole plate of electron gun in cathode ray tube

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