TW200425200A - Fuse apparatus and method of manufacturing the same - Google Patents

Abstract

A fuse apparatus of the present invention includes a fuse element, and an accommodating member to accommodate the fuse element therein. The fuse element includes a support, a fusible element layer formed to surround the support and made of a material to be fused by an overcurrent, caps disposed at both ends of the fusible element layer, and lead wires connected to the caps. The fuse apparatus of the present invention is manufactured by charging a filler in the protective accommodating member, and sealing the caps and the fusible element layer in the accommodating member. Thereby, a fuse inserting process is automated while number of parts and size of mounting spaces are minimized. Further, in the fuse apparatus of the present invention, the fuse element is rapidly and accurately fused upon overcurrent applications, thus increasing reliability of products and protecting other electronic parts and circuits.

Description

200425200 V. Description of the invention (1) ----- [Technical field to which the invention belongs] The present invention generally relates to a fuse device that can protect 21 parts of electricity when an overcurrent occurs, and more specifically a fuse The wire device and its manufacturing method are characterized in that the characteristics of the conventional fuse device can be maintained; the manufacturing operation is further simplified. Θ / 下 [Previous technology] Generally speaking, for example, the turn-in of electronic equipment such as televisions and video recorders is equipped with a fuse device, and its function is to

N ', the circuit can be electrically cut off to protect the circuit from damage, and the L plate is on fire. I Prevention Figure 1 is a perspective view of a conventional fuse device. : As shown in FIG. 1, the conventional fuse device includes a fuse = two I glass officials 11, a fuse body 12 2, a plurality of caps 丨 and a plurality of dazzling wire seats 20 for dazzling; 3 'or more. € Road board 30 Glass tube U center: Main body 12, which can be positioned in the longitudinal direction and disconnected. The cap 13 is installed on the glass =: the dissolving body 12 can be connected to the external raindrops when passing through, so that the fuse 1 2 # is separated, the circuit is closed, and the glass tube 11 is sealed. Liangxuan: Age * Perch knife is connected to the surface of these caps 1 3. The Inks towel is blown off the body to connect the fuse body 12 遒 cap 1 1 ′. Lead (Pb) can be used to set the fuse holder 20 to fix it. 丄 丄: Tongri Temple, on the circuit board 3. On the top, you can install a small piece of paper. Alignment points ^ Caps that are integrated into the dissolving wire and connected to ^

200425200 V. Description of the invention (2) ____ When the circuit board 30 is inside, the fuse body 12 may be blown to cover the sub-components and the entire circuit.丨 Circuit to protect electricity However, because the fuse body 12 and the cap 13 are connected to each other by mistake (Pb), the fuse body 12 and the cap have low thermal resistance: the resultant force is low. When using a high-temperature solder bath of _Z 3 between 、, 口, and 3 3, and t 3 ′ and 且 break body 12 will be separated from the cap u.疋 is a lead material harmful to the environment, which will cause environmental problems. ~ In addition, the glass tube is usually made of glass or other components, which has a high thermal resistance, but it is strong = easy to break. Therefore, it is not easy to use—automatic plug-in and glass-off: the process, and the staff must automatically install a plurality of fuses into the fuse holder 2 automatically. in. The reason is that # 制 子 ° will be increased due to personnel costs ... It is also a manufacturing cost of time, because the fuse element itself is not directly inserted into the = required, an additional plurality of dazzling wires & Plate. Therefore, there must be extra space. Installation cost will increase. Wooden clothes. Another 4 4 4 wire seat, and the security [Abstract] The reason is that one of the ideas of the present invention is to provide one: by improving a melody Yin Yuan 侔 ㈣ 4 4 wai 4, its characteristics χ 4 4 elements Strength, and directly fuse the fuse element: = B f _㈣ seat 'to insert _ material, when ^ the number of parts and the size of the Anshang space is the smallest two moving X Ming another idea is to provide a fuse Wire device, characterized by

5050-6182-PF (N2) .ptd Page 9 200425200 V. Description of the invention (3)

Yu: A fuse element can be reliably disconnected when an overcurrent occurs and at the same time has the same disconnection as the conventional fuse element. It has high reliability and protects other electronic components and electricity. Another idea of the invention is to provide a method. Bali is the manufacturer of the K-wire device. One part of the present invention has additional ideas and advantages, while the other part can be learned from the description. ^ It is conceivable that two cocoa alloys formed as an element layer structure are connected to the insulation sheet by providing a fuse device, the fuse device includes: one surrounding the supporting member; a plurality of such that the end of the supporting member is provided It has a predetermined resistance; the two ends of the element layer are broken, and the outer side; a plurality of wires, connected to the boat, are formed on a copper layer and the caps are electrically insulated from the outer side and a tin layer is fused. Receive this arc energy. And an arc energy: the receiving member; the spiral groove and the plurality of caps that can be attached to the caps to protect the amount of transmission of each component of a cocoa to form soluble caps, fuses and other caps, The component is filled to the outside with ~~ 1j 1 dazzling element formed on the element layer as the outer part of the element layer, and the characteristic of the fuse used by 5 Hai copper is: «—emulsification error (Z Γ Ο〗) , Fluorite, aluminum, sand, gravel, sandstone, medium = the material is selected from the group consisting of magnesium oxide (Mg0), iron, stone lean, calcium carbonate, mica, ox limestone, or a mixture thereof

It will be mentioned in the following description or can be implemented by the present invention and other layers, a fusible junction surrounding the electrical ground; a layer and the prevention of fillers to attract

200425200 V. Description of the invention (4) The fuse is characterized by the fact that the cocoa fuse element layer includes a material having a temperature coefficient of not less than 2,0 0 0 PPm / t :, and 6 > < 1 〇_8 to 丨 .8 X 1 0_8 Ohm-meter (Ω ni) specific resistance. The melting wire is characterized by: y π ^ # ^ Coco fuse element layer includes a tin material. The characteristics of the dissolving wire are: Α i t. ^ ^ Α. Θ... A conductive layer having a conductive material is further included between the side support member and the cocoa fusible element layer. The characteristic of this fuse is Xie · 9 material. The text consists of · 4 conductive layers including a nickel-chromium (Ni-Cr) material, the special micro-recognition of the molten wire; and the cocoa fuse element f; the receiving member is used to receive the caps of the fuse's special fi; In order to make the parts of these wires exposed. Of materials. The method includes: The containing member is based on nylon. In addition, the method can be used to prepare a layer of a method for manufacturing a fuse device; a layer on the conductive substrate; and a ring surrounding the branch. The support member forms a conductive support member, the conductive member; and ΓΪa soluble element layer; two percent of the first structure containing the branch quilt # blinds,-Γ and one of the cocoa-breaking element layer / A number of handles are formed at each side to prepare a second society, so that the first structure is electrically connected to the foreigner A. The first, the second, the Q are called 'in the conductive layer and the soluble element layer. The number of spiral grooves in Shiyi I ’s ancient visibility makes the two structures of the second structure have a predetermined Leiyang attached to the third society hibiscus to prepare a third structure; the plurality of wire cores are identified as one War, the two ends of ° 苒; and the cocoa fusible element layer is included in the weight to prevent the arc energy generated when the cocoa fusible element layer is fused from being transferred to the outside ^ 200425200 V. Description of the invention (5) 4 ^ It is characterized by: filling the filler for preventing the arc energy from being transmitted; Container, and then seal one of the outer inlets. The method of this method is to seal the caps and the layer so that the wires can be exposed to the outside. It is characterized in that: the cap and the fusible member, and then a rating, a qualified mark: a layer of clothing, the trademark is displayed on an outer side of the receiving member. The method is characterized by: Control the width of one of the spiral grooves and the number of cuts so that the predetermined resistance is between 10 and 2000 milliohms (m Ω. Target) [Embodiment] See the comparison of the present invention in detail The preferred embodiment, the accompanying drawings do not show a variety of examples. Figures, / 2a to 2b are cross-sectional views of a continuous manufacturing operation of a fuse according to the present invention. The spoon is shown in Figure 2a,- The conductive layer m includes a conductive material laminated on the surface of a rod-shaped support. In the present invention, the support 100 has a high-purity non-conductive ceramic material. Nickel-cadmium (Ni-Cr) can be used as two M V electrical material, and the material is stacked by a conventional non-electrolytic plating process On the surface of the holder member 1 billion of 0 Thereafter, as shown in Fig. 2b, one having fusing characteristics based fusible element layer 102 laminated on one surface of the conductive layer 101. In the present invention, a meltable

5050-6182-PF (N2) .ptd Page 12 200425200 V. Description of the Invention (6) The broken element layer 102 is mainly formed of tin (Sn). Any material other than tin can be used as long as it has a temperature coefficient of not less than about 2,000 ppm / c, and between 1.6 X 10-8 to 1.8 X 10-8 ohm-mm A low specific resistance within the ruler range is sufficient. The fusible element layer 102 can be melted and melted by heat caused by an overcurrent. In this case, the temperature coefficient is the most important parameter in determining the fusing characteristics. If the temperature coefficient is high, the resistance of the fusible element layer 102 will increase due to the heat caused by the overcurrent. Therefore, the Joule heat will heat the fusible element layer 102 to a melting point, and thereby break it. In the present invention, tin as a fusible element layer has a high temperature coefficient, a low specific resistance, and a low melting point. Therefore, the fuse of the present invention can greatly improve the fusing characteristics compared with the conventional fuse device. Therefore, a fuse procedure can be executed quickly and accurately. The fusible element layer 02 is deposited on the surface of the conductive layer 10 through an electrolytic plating process. Alternatively, in addition to the electrolytic plating process, the fusible element layer 02 can be directly deposited on the surface of the holder 100 by a sputtering process. When this electrolytic plating process is not used to laminate the fusible element layer 102, the conductive layer may be omitted. ^ According to the present invention, the initial resistance at both ends of the first structure 110 having one of the conductive layer 101 and the fusible element layer 102 will be maintained in the range of 15 to 30 milliohms, where the initial resistance is based on each The composition and thickness of these layers depend. Next, as shown in FIG. 2c, a plurality of caps 103 are mounted to the first structure 11o end to prepare a second structure 12o. The fusible element layer can be electrically connected to the outside through the mesh 103. The second structure 1250 5050-6182-PF (N2) .ptd page 13 200425200 V. Description of the invention (7) The resistance at the end is in the range of 8 to 15 milliohms. As shown in Fig. 2d, a plurality of spiral grooves 104 are formed longitudinally in two layers 101 and 102, which are the conductive layer and the fusible element layer, to prepare a third structure 130. The third structure 130 has a final resistance of 10 to 200 milliohms at both ends thereof. The final resistance is determined based on the number of turns of the spiral cutting and the initial resistance of the two ends of the second structure 120. In particular, the final resistance after helical cutting will depend on the helical width, helical pitch, cutting depth, and cutting width. According to the final resistance, characteristics corresponding to the rated current of the fuse device can be determined. 'Next, as shown in FIG. 2e, the plurality of wires 105 are attached to the outer sides of the two caps 103 of the third structure 130 by a welding process to form a fourth structure 140. The lead 105 is inserted into a circuit board so that the fusible element layer 102 and the cap 103 are electrically connected to the circuit board. After the fuse element 140 in Fig. 2e is manufactured according to the above-mentioned series of actions, the fuse element 140 can be placed in a protective housing member 〇06 to prevent the arc generated when the fusible element layer is blown. The energy is delivered to the department as shown in the figure. The accommodating member 106 is made of a material (gp 'based on nylon) which has high thermal resistance and strength. Furthermore, the containment 106 can be used to protect the conductive fusible element layer 102 and to clean it. On the outer side of the containment member Π6, a rating such as 2 (V) and 4 amps (A) may be displayed,-human forest cathode ° Special mouth yttrium 'early, and a manufacturer only indicated 0

V. Description of the invention (8) The arc energy generated by the fuse is transmitted to the outside. Filler 107 package selection and joint 106 prevent energy mountain 〇2; commonly known as "oxidation dream" " \ 由 emulsification town (_, calcium dioxide, mica, oxide oxide, sand m / soil, stone, stone anorexia Any material in the group consisting of owing material;% =, limestone, or a mixture of high blocking capacity, which is the working filler 107, which can represent 2/3 of the volume of the 106 container. Mao Mingzhong can accommodate the component element 140. Fill it with 1.07 to seal the Si completely around the fuse: for example, Figure 2h / shown by the 'use-sealing material 108 to close the hibiscus 1 Ofi Φ々, to seal the fuse element 14 and the filler 107 in the storage # 1 () 7 ~ ^ tf material 108 is used to fill the fuse element 140 and the powder = Yuan Wang r in the storage member 106. In the present invention, the sealing material = including -lophosphine resin 'and it has advantages in fast drying and high thermal resistance. When the inlet of the storage member 106 is sealed with the sealing material 108, the material 108 can be dried. Then, the' storage member ' The outer side of 106 will accept a standard as a dazzling silk device. 1 疋 See this 'The sealing structure will be available for Jinbian 2 I!' At a certain interval, 'install the completed fuse. ,, A' 'is a preliminary process of using 彳 as an automatic insertion unit to automatically insert the fuse device into the circuit board. ": 上 m 知" This invention Provided is a fuse device and a core method thereof.

200425200 V. Description of the invention (9) The number of components and the size of the installation space are minimized. In addition, when an overcurrent is applied, a fuse element can be quickly and accurately blown, thereby improving the reliability of the product and protecting other electronic components and circuits. Also, in the present invention, a novel manufacturing method has been proposed in place of the conventional method to achieve high productivity. Furthermore, since non-lead materials are used in the present invention, environmental problems do not occur. Although a preferred embodiment of the present invention has been illustrated and described, those skilled in the art will understand that changes can be made to the embodiment without departing from the principles and spirit of the present invention, and the scope of the present invention will be described in the application. The scope of the patent and its equivalents are defined.

5050-6182-PF (N2) .ptd Page 16 200425200 Brief Description of Drawings Figure 1 is a perspective view showing a conventional fuse device; and Figures 2a to 2h are drawings showing Sectional view of a continuous manufacturing operation of a fuse device. DESCRIPTION OF SYMBOLS 1 1 ~ glass tube; 1 3 ~ cap; 3 0 ~ circuit board; 101 ~ conductive layer; 10 0 ~ 3 ~ cap; 105 ~ wire; I 0 7 ~ filler; II 0 ~ first structure 1 3 0 ~ 3rd structure 1 10 ~ fuse element; 1 2 ~ fuse body; 2 0 ~ fuse base; 1 0 0 ~ supporting piece; 1 0 2 ~ fusible element layer 1 0 4 ~ spiral groove 1 06 ~ receiving member; 108 ~ sealing material; 120 ~ second structure; 140 ~ 4 structure.

5050-6182-PF (N2) .ptd Page 17

Claims (1)

200425200 6. Application scope 1. A fuse device, comprising: a bracket; a fusible element layer formed to surround the bracket; a plurality of spiral grooves formed in the fusible element layer so that The two ends of the structure including the supporting member and the fusible element layer have a predetermined resistance; a plurality of caps are formed to surround the two ends of the fusible element layer, so that the fusible element layer is electrically grounded. Connected to the outside; a plurality of wires attached to the outer sides of the caps; an insulating film formed on a copper layer and the caps to electrically insulate the copper layer and the caps from the outside; And a protective containing member for preventing the arc energy generated when a tin layer is fused from being transferred to the outside. 2. The fuse device according to item 1 of the scope of patent application, wherein the containing member is filled with a filler to absorb the arc energy. 3. The fuse device according to item 2 of the scope of the patent application, wherein the filler is selected from the group consisting of hafnium oxide (M g 0), oxidized dioxide (Z r 02), stone evening stone, clay, gypsum, calcium carbonate, Mica, alumina, sand, gravel, sandstone, limestone, or mixtures thereof. 4. The fuse device according to item 1 of the scope of patent application, wherein the fusible element layer includes a material having a temperature coefficient of not less than 2,000 p pm / ° C, and 1.6 x 10-8 To 1 · 8 x 10_8 ohm-meter (Ωιη) specific resistance. 5. The fuse device according to item 1 or 4 of the scope of patent application, wherein the 5050-6182-PF (N2) .ptd Page 18 200425200 VI. Material Capacitor Guide Receiving Material Tin-Including Cladding Envelopes Huai Yuan Arbitrary ± -Month I Melting Includes Including 1J Second Interval Range Please make sure that the application of the fuse is correct. 6 = The mouth and the support should be installed in the wire fuse described in the above-mentioned conductance-the electrical conductivity of the material is 7. The fuse as described in item 6 of the scope of patent application The device, wherein the conductive layer includes a Ni-Cr material. 8. The fuse device according to item 1 of the scope of patent application, wherein the receiving member is used to receive the caps and the fusible element layer so that the components of the wires can be exposed to the outside. 9. The fuse device according to item 1 or 2 of the scope of patent application, wherein the capacitor comprises a nylon-based material. 1 0. A method for manufacturing a fuse device, the method includes: preparing a bracket; forming a conductive layer around the bracket; forming a fusible element layer on the conductive layer; and including the branch A plurality of caps are formed at two ends of the first structure of the supporting member, the conductive layer, and the fusible element layer, so that the first structure is air-connected to the outside to prepare a second structure; the conductive layer and the A plurality of spiral grooves having a predetermined width are formed in the fusible element layer so that both ends of the second structure have a predetermined electricity to prepare a third structure; a plurality of wires are attached to both ends of the third structure; And the fusible element layer is housed in a protective accommodating member to prevent the arc energy generated when the fusible element layer is fused from being transferred to the outside. 1 m 5050-6182-PF (N2) .ptd page 19 200425200 6. Application scope of patent 11. The method described in item 10 of the scope of patent application, wherein a filler is used to prevent the transmission of the arc energy to the outside. In the receiving member, an inlet of the receiving member is then sealed. 1 2. The method according to item 11 of the scope of patent application, wherein the caps and the fusible element layer can be sealed to expose the wires to the outside. 13 3. The method as described in item 10 of the scope of patent application, wherein the caps and the fusible element layer are housed in the housing member, and then a rating, a qualified mark, and a The manufacturer's logo appears on one of the exterior sides of the receiving member. 14. The method as described in item 10 of the scope of patent application, wherein the width of one of the spiral grooves and the number of cuts are controlled so that the predetermined resistance is in the range of 10 to 200 milliohms (πmΩ) . 5050-6182-PF (N2) .ptd Page 20