Fuse for easy assembly

Abstract

The present application is a fuse which is easy to assemble, comprising a fuse, a socket and a cover. The fuse is engaged with the socket, and the cover covers the socket and the fuse and is engaged with the socket. The engagement of the fuse with the socket and the engagement of the cover with the socket achieve the purpose of quick alignment and positioning, so that the fuse can be quickly assembled during the manufacturing process, thereby simplifying the manufacturing process and reducing the production cost.

Description

TECHNICAL FIELD

[0001] The present application relates to a fuse, which is installed in a circuit component to protect the circuit. BACKGROUND

[0002] The prior art fuse is assembled with a fuse in a shell, and then fixed by encapsulation for use. The position of the fuse assembled in the shell is easily changed by external force during the process, so that the fuse is difficult to be positioned. The unstable position of the fuse will affect its function. For example, the distance between the two ends of the fuse is not fixed, so that an arc may be generated when the fuse is blown due to the too close distance between the two ends of the fuse, resulting in the failure to form a circuit in real time. For another example, the distance between the fuse and the wall surface of the shell will also cause the fuse to be affected by the external temperature differently, so that the high temperature generated by the excessive current cannot be reacted in real time, resulting in the failure to form a circuit in real time.

[0003] Therefore, how to enable the fuse to have a fixed position in the shell becomes a technical problem urgently to be solved in the field. SUMMARY

[0004] In view of the above, the present application improves the structure of the fuse to easily fix the position of the fuse during the assembly process, so as to avoid the above-mentioned defects caused by the unstable position of the fuse.

[0005] To achieve the above-mentioned application purposes, the technical means adopted by the present application is to provide a fuse convenient to assemble, which comprises:

[0006] a fuse, which comprises a fusing portion, two connecting portions and two terminals, the two ends of the fusing portion are connected to one of the connecting portions respectively, and the two ends of each connecting portion are connected to the fusing portion and one of the terminals respectively;

[0007] a seat, which supports the fuse, the seat comprises a clamping seat and two end seats, a clamping groove is formed on each side of the clamping seat, the fusing portion of the fuse is arranged in the clamping seat, the fusing portion is clamped in the clamping groove, the end seats are respectively extended outward from the two sides of the clamping seat, the end seats are coaxial with the clamping groove, the height of the clamping seat is greater than the height of the end seat, each end seat has a first surface and a second surface, the first surface and the second surface are located on different sides, the two connecting portions of the fuse are arranged on the first surface of the end seat respectively, and the two terminals of the fuse are arranged by being bent along one end and the second surface of the end seat respectively;

[0008] A cover is covered on the fuse and the seat, the cover includes a main wall, a ring wall and at least a positioning assembly, the ring wall is surrounded around the outer periphery of the main wall, the main wall and the ring wall are surrounded to form a content room, and the positioning assembly is arranged on the main wall and extends into the content room, and the positioning assembly is matched with at least one clamping groove of the clamping seat of the seat.

[0009] The advantage of the present application is that, by the arrangement of the clamping seat and the positioning assembly, and by the cooperation of the fusing part and the clamping seat, the fuse, the seat and the cover can be easily aligned during assembly without the aid of special alignment equipment, therefore, the present application can effectively reduce the assembly time and reduce the manufacturing cost.

[0010] In order to better understand the above and other aspects of the present application, the following embodiments are described in detail below with reference to the accompanying drawings, but not as a limitation of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a top perspective view of the first embodiment of the present application;

[0012] Figure 2 It is a bottom perspective view of the first embodiment of the present application;

[0013] Figure 3 It is an exploded view of the first embodiment of the present application;

[0014] Figure 4A It is a plan view of the first embodiment of the fuse of the present application;

[0015] Figure 4B It is a plan view of the second embodiment of the fuse of the present application;

[0016] Figure 4C It is a plan view of the third embodiment of the fuse of the present application;

[0017] Figure 4D It is a perspective view of the third embodiment of the fuse of the present application;

[0018] Figure 5 It is an assembly view of the first embodiment of the fuse and the seat of the present application;

[0019] Figure 6A It is a perspective view of the first embodiment of the seat of the present application;

[0020] Figure 6B It is a perspective view of the second embodiment of the seat of the present application;

[0021] Figure 7 It is a bottom perspective view of the cover of the present application;

[0022] Figure 8A top view cross-sectional view of the first embodiment of the present application;

[0023] Figure 9 A perspective cross-sectional view of the first embodiment of the present application;

[0024] Figure 10 A side view cross-sectional view of the first embodiment of the present application;

[0025] Figure 11 A side view cross-sectional view of the second embodiment of the present application;

[0026] Figure 12 An assembled process bottom perspective view of the first embodiment of the present application.

[0027] Wherein, the reference signs:

[0028] 10: fuse 11: fusing portion

[0029] 12: connecting portion 13: terminal

[0030] 20: seat

[0031] 21: clamping seat 210: heat accumulation chamber

[0032] 211: clamping slot 22: end seat

[0033] 220: first surface 221: heat accumulation groove

[0034] 222: second surface 30: cover body

[0035] 300: opening 310: inner chamber

[0036] 31: main wall 32: ring wall

[0037] 321: notch 33: positioning assembly

[0038] 331: main body 332: protruding block

[0039] 333: blocking sheet 40: sealing glue body

[0040] 50: explosion-proof material DETAILED DESCRIPTION

[0041] The technical means adopted by the present application to achieve the predetermined object of the application are further illustrated in the following with reference to the accompanying drawings and embodiments of the present application, wherein the drawings are merely simplified for the purpose of illustration and the structure or method of the present application is illustrated by describing the relationship between the elements and components of the present application, therefore, the elements shown in the drawings are not presented in actual quantity, actual shape, actual size and actual proportion, the size or size proportion has been enlarged or simplified, thereby providing better illustration, the actual quantity, actual shape or actual size proportion has been selectively designed and configured, and the detailed element layout can be more complicated.

[0042] Please refer to Figures 1 to 3 The present application comprises a fuse 10, a seat 20, a cover 30 and a sealant 40.

[0043] The aforementioned fuse 10 comprises a fusing portion 11, two connecting portions 12 and two terminals 13, the two ends of the fusing portion 11 are respectively connected to one of the connecting portions 12, and the two ends of each connecting portion 12 are respectively connected to the fusing portion 11 and one of the terminals 13. In an embodiment (as shown in Figure 4A The width L1 of the fusing portion 11 is less than the width L2 of the connecting portion 12, and the width L2 of the connecting portion 12 is less than the width L3 of the terminal 13.

[0044] In an embodiment (as shown in Figure 4A The fusing portion 11, the connecting portion 12 and the terminal 13 are integrally formed; in another embodiment (as shown in Figure 4B The fusing portion 11A and the connecting portion 12A are fixed by welding. In an embodiment (as shown in Figure 4A The fusing portion 11 is linear; in another embodiment (as shown in Figure 4C and Figure 4D The fusing portion 11B is bent to a non-linear path, so that the fusing portion 11B elongates the total length without increasing the distance between the connecting portions 12B, for protecting the circuit with smaller rated current (for example, 10 amperes to 0.5 amperes), further, the two side edges of the fusing portion 11B are bent downward to reduce the width of the fusing portion 11B.

[0045] Please refer to Figure 2 , Figure 3 and Figure 5As shown, the aforementioned support 20 receives the fuse 10. The support 20 includes a locking seat 21 and two end seats 22. The locking seat 21 is hollow and has a heat-collecting chamber 210. A locking groove 211 is formed through both sides of the locking seat 21, and the locking groove 211 is connected to the heat-collecting chamber 210. The fusible part 11 of the fuse 10 passes through the locking seat 21 and is engaged in the locking groove 211. The end seats 22 extend outward from both sides of the locking seat 21, and the end seats 22 are coaxial with the locking grooves 211. The height H1 of the locking seat 21 is greater than the height H2 of the end seats 22. A heat-collecting groove 221 is formed inward on the first surface 220 of each end seat 22. The two connecting parts 12 of the fuse 10 are respectively disposed on the surface of the end seat 22 and cover the corresponding heat-collecting groove 221. The two terminals 13 of the fuse 10 are bent along the end of the end seat 22 and the second surface 222, respectively. The heat-collecting chamber 210 and the heat-collecting groove 221 provide a heat-collecting space. Since the fuse-breaking part 11 and the connecting part 12 of the fuse 10 are adjacent to the heat-collecting chamber 210 and the heat-collecting groove 221, the heat energy accumulated in the heat-collecting chamber 210 and the heat-collecting groove 221 can be effectively accumulated to the fuse-breaking part 11 and the connecting part 12 of the fuse 10. Therefore, when the fuse 10 encounters a large current, the instantaneously rising temperature can be rapidly accumulated in the fuse-breaking part 11 and the connecting part 12 of the fuse 10, allowing the fuse-breaking part 11 to react to overheating in real time and melt, thereby improving the protection effect of the overall circuit.

[0046] In one embodiment (e.g.) Figure 6A As shown), the width W of the card holder 21 is... 11 Width W greater than the width of each end seat 22 21 In another embodiment (such as...) Figure 6B As shown in the figure, the width W of the card holder 21A is... 12 Equal to the width W of each end seat 22A 22 Compared to the two embodiments described above, Figure 6A The heat-concentrating chamber 210 of the embodiment shown is Figure 6B The heat-concentrating chamber 210A of the illustrated embodiment has a larger space compared to the others. Figure 6A The locking seat 21 of the illustrated embodiment provides better heat retention and also provides the space required for the fuse portion 11 to fuse; Figure 6B The embodiment shown has a bearing 20A and Figure 6A The support 20 of the illustrated embodiment has a smaller volume in comparison.

[0047] Please see Figure 3 , Figures 7 to 9As shown, the cover 30 covers the fuse 10 and the socket 20, the cover 30 comprises a main wall 31, a ring wall 32 and at least one positioning assembly 33. The ring wall 32 surrounds the outer periphery of the main wall 31, the main wall 31 and the ring wall 32 enclose a content chamber 310, the cover 30 further comprises an opening 300, the opening 300 is connected with the content chamber 310 and is adjacent to the ring wall 32, and is opposite to the main wall 31, the main wall 31 abuts the edge of the clamping seat 21 of the socket 20, so as to close the heat accumulation chamber 210 between the clamping seat 21 and the main wall 31, the ring wall 32 is recessed with two notches 321 adjacent to the opening 300, the notches 321 are respectively corresponding to the terminals 13 of the fuse 10, and each terminal 13 extends outwardly from the corresponding notch 321. The positioning assembly 33 is arranged on the main wall 31 and extends into the content chamber 310, the positioning assembly 33 is fitted with at least one clamping groove 211 of the clamping seat 21 of the socket 20, so that the cover 30 and the socket 20 are positioned in mutual abutment. In an embodiment, each positioning assembly 33 comprises a main body 331, a protrusion 332 and two blocking pieces 333, the main body 331, the protrusion 332 and the blocking pieces 333 are arranged on the main wall 31, the protrusion 332 extends from one side of the main body 331 along the main wall 31, and the blocking pieces 333 extend from both ends of the main body 331 into the content chamber 310, the main body 331, the protrusion 332 and the corresponding clamping groove 211 of the clamping seat 21 are fitted, and the blocking pieces 333 abut the side edges of the corresponding end seat 22 of the socket 20, so as to more stably abut the cover 30 and the socket 20.

[0048] As shown in Figure 2 、 Figure 3 and Figure 10 , the aforementioned encapsulating body 40 is filled into the content chamber 310 of the cover 30 from the opening 300, so as to additionally fix the fuse 10, the socket 20 and the cover 30, since the heat accumulation chamber 210 of the socket 20 is closed by the main wall 31 of the cover 30, and the heat accumulation groove 221 of the socket 20 is covered by the connecting portion 12 of the fuse 10, the heat accumulation chamber 210 and the heat accumulation groove 221 are not filled with the encapsulating body 40. In an embodiment, the encapsulating body 40 is a temperature-resistant glue material, such as epoxy resin, silicone resin, etc. In an embodiment (see Figure 11As shown, the heat accumulating chamber 210 and the heat accumulating groove 221 can be pre-filled with explosion-proof materials 50, such as quartz sand, explosion-proof sand, or fire-retardant materials, such as melamine, magnesium hydroxide, aluminum hydroxide, etc. When the fuse 10 is subjected to excessive current and starts to melt, the instant high heat generated can cause a flame, and the explosion-proof materials 50 can help prevent the flame from burning.

[0049] In the assembly of the present application, the fuse 10 is first butted against the seat 20 (as shown in Figure 5 ), with the fuse portion 11 engaged in the slot 211, so that the connecting portion 12 is naturally butted against the end seat 22. The fuse 10 and the seat 20 can be easily butted and positioned. Then, the cover 30 is placed on the fuse 10 and the seat 20 (as shown in Figure 12 ), and in combination with Figure 3 and Figure 7 ), the positioning assembly 33 is engaged with the slot 211 of the engaging seat 21, so that the cover 30 and the seat 20 are butted and positioned against each other. Finally, the sealant 40 is filled in the inner chamber 310 of the cover 30 (as shown in Figure 2 ), and the terminal 13 is bent and attached to the end portion and the second surface 222 of the end seat 22, so as to fix the relative positions of the fuse 10, the seat 20, and the cover 30. Thus, through the cooperation of the fuse portion 11, the engaging seat 21, and the positioning assembly 33, the fuse 10, the seat 20, and the cover 30 can be easily positioned during assembly without the need for additional precise positioning instruments, thereby effectively saving assembly time and cost.

[0050] In another embodiment, the present application can also be fixed by the tight fit between the cover 30 and the seat 20 without using the sealant 40. The cover 30 and the seat 20 can both be made of plastic material to make the tight fit easier to achieve.

[0051] The above description is only an embodiment of the present application and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any person with ordinary knowledge in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes do not deviate from the technical solution of the present application. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A fuse for facilitating assembly, characterized in that It includes: A fuse includes a fuse portion, two connecting portions and two terminals, wherein the two ends of the fuse portion are respectively connected to one of the connecting portions, and the two ends of each connecting portion are respectively connected to the fuse portion and one of the terminals; A support is provided for receiving the fuse. The support includes a locking seat and two end seats. A locking groove is formed through both sides of the locking seat. The fusible part of the fuse passes through the locking seat and is locked in the locking groove. The end seats extend outward from both sides of the locking seat and are coaxial with the locking groove. The height of the locking seat is greater than the height of the end seats. Each end seat has a first surface and a second surface. The first surface and the second surface are located on opposite sides. The two connecting parts of the fuse are respectively disposed on the first surface of the end seat. The two terminals of the fuse are bent along one end of the end seat and one second surface, respectively. A heat-gathering groove is formed inward on the first surface of each end seat. The two connecting parts of the fuse cover the corresponding heat-gathering groove. A cover body covering the fuse and the support, the cover body including a main wall, an annular wall and at least one positioning component, the annular wall being formed around the outer periphery of the main wall, the main wall and the annular wall surrounding to form an inner chamber, the positioning component being disposed on the main wall and extending into the inner chamber, the positioning component being engaged with at least one of the slots of the engagement seat of the support.

2. The easily assembled fuse as described in claim 1, characterized in that, The locking seat is hollow and has a heat-gathering chamber. The locking slot is connected to the heat-gathering chamber. The main wall abuts against the edge of the locking seat of the support to enclose the heat-gathering chamber between the locking seat and the main wall.

3. The easily assembled fuse as described in claim 1 or 2, characterized in that, It further includes a sealing gel, and the cap also includes an opening that communicates with the inner chamber and is adjacent to the annular wall and opposite to the main wall, the sealing gel being filled into the inner chamber of the cap through the opening of the cap.

4. The easily assembled fuse as described in claim 3, characterized in that, The annular wall of the cover has two recessed notches adjacent to the opening, and the notches correspond to the terminals of the fuse, with each terminal extending outward from the corresponding notch.

5. The easily assembled fuse as described in claim 1 or 2, characterized in that, The width of the engagement seat of the bearing is greater than or equal to the width of each end seat.

6. The easily assembled fuse as described in claim 1 or 2, characterized in that, The fuse's fuse-breaking portion, the connecting portion, and the terminal are integrally formed.

7. The easily assembled fuse as described in claim 1 or 2, characterized in that, The fuse section bends along a non-linear path.

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