Fuse connection terminal of a conversion socket

Abstract

The utility model discloses a fuse tube connecting terminal of conversion socket, including output terminal, upper clamping terminal, fuse tube, lower clamping terminal and input terminal, and output terminal and upper clamping terminal conductive connection, input terminal and lower clamping terminal conductive connection, and upper clamping terminal has a pair of first clamping piece, and the inboard of first clamping piece has the first contact surface of arc, and two first clamping pieces are electrically clamped the upper end of fuse tube, and the first contact surface and the first electrically conductive end of fuse tube upper end are electrically connected and surface contact, lower clamping terminal has a pair of second clamping piece, and the inboard of second clamping piece has the second contact surface of arc, and two second clamping pieces are electrically clamped the lower end of fuse tube, and the second contact surface and the second electrically conductive end of fuse tube lower end are electrically connected and surface contact. The utility model can reduce the heat of the connection of fuse tube, reduce the temperature in the inside of conversion socket, effectively guarantee the insurance performance of fuse tube.

Description

Technical Field

[0001] This utility model relates to a conversion socket, and more particularly to a fuse connection terminal for a conversion socket. Background Technology

[0002] A travel adapter is a portable socket with multiple plugs and sockets, suitable for use in different countries. Internally, it has output conductive terminals on the upper side and input conductive terminals on the lower side, connected by a fuse. When the current exceeds the fuse's maximum current capacity, the fuse will disconnect the circuit to prevent the adapter from burning out. However, in existing travel adapters, the output and input conductive terminals are typically connected to the fuse via point or wire contact. This connection method increases the resistance at the contact point or wire, leading to increased heat generation at the connection point. This causes the internal temperature of the travel adapter to rise rapidly and affects the fuse's safety performance. Utility Model Content

[0003] The purpose of this invention is to provide a fuse connection terminal for a converter socket, which can reduce heat generation at the connection point with the fuse, lower the internal temperature of the converter socket, and effectively ensure the fuse's safety performance.

[0004] To achieve the above objectives, this utility model provides a fuse connection terminal for a conversion socket, including an output terminal, an upper clamping terminal, a fuse, a lower clamping terminal, and an input terminal. The output terminal is electrically connected to the upper clamping terminal; the input terminal is electrically connected to the lower clamping terminal. The upper clamping terminal has a pair of first clips, the inner side of which has an arc-shaped first contact surface. The two first clips conductively clamp the upper end of the fuse, and the first contact surface is conductively and in surface contact with the first conductive end of the upper end of the fuse. The lower clamping terminal has a pair of second clips, the inner side of which has an arc-shaped second contact surface. The two second clips conductively clamp the lower end of the fuse, and the second contact surface is conductively and in surface contact with the second conductive end of the lower end of the fuse. Compared to existing technologies, by providing a pair of first clamping tabs on the upper clamping terminal, with arc-shaped first contact surfaces on the first clamping tabs, and a pair of second clamping tabs on the lower clamping terminal, with arc-shaped second contact surfaces on the second clamping tabs, the electrical contact area between the fuse and the upper and lower clamping terminals is greatly increased through surface contact between the two first contact surfaces and the first conductive end of the fuse, and surface contact between the two second contact surfaces and the second conductive end of the fuse. This reduces the resistance at the contact points and prevents excessive heat generation due to increased current. Furthermore, the first and second contact surfaces can accelerate the dissipation of heat from the fuse, preventing abnormal temperature rise of the fuse under normal use and effectively ensuring the fuse's safety performance.

[0005] Preferably, the output terminal is detachably connected to the upper clamping terminal. This not only reduces the manufacturing difficulty of the conductive terminal but also makes assembly faster and more efficient.

[0006] Preferably, the upper clamping terminal includes a clamping body, a insert, and a first clamping piece, the insert and the first clamping piece being disposed on the clamping body; the output terminal has a sleeve with an opening facing the insert, the insert being inserted into the sleeve, and the surface and bottom surface of the insert being in conductive contact with the two inner walls of the sleeve, respectively. By providing the sleeve, the two inner walls of the sleeve can be in surface contact with the surface and bottom surface of the insert for conductive conduction, thereby further reducing the resistance at the contact point and preventing excessive heat generation due to increased current.

[0007] Specifically, the opening edge of the socket is provided with an outwardly extending guide portion, which guides the insert into the socket. The guide portion makes it easier for the insert to mate with the socket, effectively improving assembly convenience.

[0008] Preferably, the lower clamping terminal and the input terminal are integrally formed.

[0009] Preferably, the output terminal includes a conductive body, a pair of first elastic clamping arms, and a pair of second elastic clamping arms. The first elastic clamping arms are disposed on opposite sides of the conductive body, and a clearance hole communicating with the inner and outer sides is opened on the lower side of the first elastic clamping arms. The second elastic clamping arms are disposed on opposite sides of the conductive body and are located in the clearance holes respectively. The distance between the contact points of the two first elastic clamping arms is greater than the distance between the contact points of the two second elastic clamping arms. By providing a pair of first elastic clamping arms and a pair of second elastic clamping arms on the conductive body, and making the second elastic clamping arms located at the clearance holes of the first elastic clamping arms, the first elastic clamping arms and the second elastic clamping arms can form two clamping positions at different heights. Furthermore, by making the distance between the contact points of the two first elastic clamping arms greater than the distance between the contact points of the two second elastic clamping arms, the first elastic clamping arms can clamp larger plugs, and the second elastic clamping arms can clamp smaller plugs. This prevents the elastic force of the second elastic clamping arms from decreasing after a large plug is inserted, and prevents the clamping force from being insufficient after a small plug is inserted. This allows it to be used with plugs of different national standards, improving the applicability of the adapter.

[0010] Specifically, the conductive body, the pair of first elastic clamping arms, and the pair of second elastic clamping arms are all integrally formed.

[0011] Specifically, the first elastic clamping arm extends upward from the edge of the conductive body, and the two first elastic clamping arms are inclined toward each other; the second elastic clamping arm extends upward from the edge of the conductive body, and the two second elastic clamping arms are inclined toward each other.

[0012] Specifically, the height of the first elastic clamping arm is greater than the height of the second elastic clamping arm, and the width of the first elastic clamping arm is greater than the width of the second elastic clamping arm. This allows the first elastic clamping arm to be adapted to large plugs, improving clamping stability.

[0013] Preferably, the upper clamping terminal is provided with a connection hole.

[0014] Specifically, the top end of the first elastic clamping arm and / or the second elastic clamping arm is provided with a guide portion that slopes upward and outward. The guide portion allows the insert to more easily mate with it, effectively improving assembly convenience. Attached Figure Description

[0015] Figure 1 This is a perspective view of the fuse connection terminal of the conversion socket of this utility model.

[0016] Figure 2 This is an exploded view of the fuse connection terminal of the conversion socket of this utility model.

[0017] Figure 3 This is a structural diagram of the upper clamping terminal of the fuse connection terminal of the conversion socket of this utility model.

[0018] Figure 4 This is a structural diagram of the lower clamping terminal of the fuse connection terminal of the conversion socket of this utility model.

[0019] Figure 5 This is a structural diagram of the output terminal of the fuse connection terminal of the conversion socket of this utility model.

[0020] Figure 6 This is a side view of the output terminal of the fuse connection terminal of the conversion socket of this utility model.

[0021] Figure 7 This is a top view of the output terminal of the fuse connection terminal of the conversion socket of this utility model. Detailed Implementation

[0022] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0023] Please see Figures 1 to 4 The fuse connection terminal 100 of the adapter socket of this utility model includes an output terminal 1, an upper clamping terminal 2, a fuse 3, a lower clamping terminal 4, and an input terminal 5. The output terminal 1 is electrically connected to the upper clamping terminal 2. The input terminal 5 is electrically connected to the lower clamping terminal 4. The upper clamping terminal 2 has a pair of first clamping pieces 21, the inner side of which has an arc-shaped first contact surface 211. The two first clamping pieces 21 electrically clamp the upper end of the fuse 3. The fuse 3 has a cylindrical structure. The first contact surface 211 is electrically connected to and in surface contact with the first conductive end 31 at the upper end of the fuse 3. The lower clamping terminal 4 is integrally formed with the input terminal 5. The lower clamping terminal 4 has a pair of second clamping pieces 41, the inner side of which has an arc-shaped second contact surface 411. The two second clamping pieces 41 electrically clamp the lower end of the fuse 3. The second contact surface 411 is electrically connected to and in surface contact with the second conductive end 32 at the lower end of the fuse 3. Furthermore, the lower edge of the first clip 21 is provided with an outwardly inclined first guide portion 21a to facilitate the connection of the safety tube 3 with the first clip 21 from below. Similarly, the upper and lower edges of the second clip 41 are also provided with guide portions similar to those of the first clip 21.

[0024] Please see Figures 1 to 3 and Figure 5The output terminal 1 is detachably connected to the upper clamping terminal 2. This not only reduces the manufacturing difficulty of the conductive terminal but also makes assembly faster. Preferably, the upper clamping terminal 2 includes a clamping body 22, a insert 23, and a first clamping piece 21, with the insert 23 and the first clamping piece 21 disposed on the clamping body 22; the clamping body 22, the insert 23, and the first clamping piece 21 are integrally formed. The insert 23 is located on the side of the clamping body 22 facing away from the first clamping piece 21, and the insert 23 extends upward. The output terminal 1 has a sleeve 14 with an opening 141 facing the insert 23. The insert 23 is inserted into the sleeve 14 through the opening 141, and the surface and bottom surface of the insert 23 are in conductive contact with the two inner walls of the sleeve 14, respectively. By providing a sleeve 14, the two inner walls of the sleeve 14 can make surface contact with the surface and bottom surface of the insert 43 for electrical conductivity, thereby further reducing the resistance at the contact point and preventing excessive heat generation due to increased current. Specifically, the opening 141 of the sleeve 14 has an outwardly extending second guide portion 142, which guides the insert 23 into the sleeve 14. Providing the second guide portion 142 makes it easier for the insert 23 to mate with the sleeve 14, effectively improving the convenience of assembly.

[0025] For example Figure 3 As shown, the upper clamping terminal 2 is provided with a connecting hole 241. Specifically, the upper end of the clamping body 22 is bent to form a connecting part 24, and the connecting hole 241 is provided on the connecting part 24. In this way, the fuse 3 connecting terminal 100 can be fixed inside the adapter socket by connecting to the connecting hole 241 with a screw.

[0026] Please see Figures 5 to 7The output terminal 1 includes a conductive body 11, a pair of first elastic clamping arms 12, a pair of second elastic clamping arms 13, and a socket 14. The first elastic clamping arms 12 and the second elastic clamping arms 13 extend upward from the edge of the conductive body 11 relative to the conductive body 11, and the socket 14 extends downward relative to the conductive body 11. The two first elastic clamping arms 12 are respectively disposed on opposite sides of the conductive body 11, and the lower side of the first elastic clamping arms 12 has a clearance hole 121 communicating with the inner and outer sides. The two second elastic clamping arms 13 are respectively disposed on opposite sides of the conductive body 11 and are located one-to-one in the clearance hole 121. The distance between the contact points of the two first elastic clamping arms 12 is greater than the distance between the contact points of the two second elastic clamping arms 13. By providing a pair of first elastic clamping arms 12 and a pair of second elastic clamping arms 13 on the conductive body 11, and positioning the second elastic clamping arms 13 at the clearance hole 121 of the first elastic clamping arms 12, the first elastic clamping arms 12 and the second elastic clamping arms 13 can form two clamping positions at different heights. Furthermore, by making the distance between the contact points of the two first elastic clamping arms 12 greater than the distance between the contact points of the two second elastic clamping arms 13, the first elastic clamping arms 12 can clamp larger plugs, and the second elastic clamping arms 13 can clamp smaller plugs. This prevents the elasticity of the second elastic clamping arms 13 from decreasing after a large plug is inserted, and prevents the small plug from having no clamping force. This allows the adapter to be used with plugs of different national standards, improving the applicability of the adapter.

[0027] Please see again Figures 5 to 7 The conductive body 11, a pair of first elastic clamping arms 12, a pair of second elastic clamping arms 13, and the socket 14 are integrally formed. Specifically, the first elastic clamping arms 12 extend upward from the edge of the conductive body 11, and the two first elastic clamping arms 12 are inclined towards each other. The height of the first elastic clamping arms 12 is greater than the height of the second elastic clamping arms 13, and the width of the first elastic clamping arms 12 is greater than the width of the second elastic clamping arms 13. This allows the first elastic clamping arms 12 to be adapted to large plugs, improving clamping stability. The second elastic clamping arms 13 extend upward from the edge of the conductive body 11, and the two second elastic clamping arms 13 are inclined towards each other. The top ends of the first elastic clamping arms 12 and the second elastic clamping arms 13 are respectively provided with guide portions 12a and 13a that are inclined upward and outward. The guide portions 12a / 13a make it easier for the plug 23 to cooperate with the guide portions 12a / 13a, effectively improving the convenience of assembly.

[0028] Compared with the prior art, by providing a pair of first clamping pieces 21 on the upper clamping terminal 2, and providing an arc-shaped first contact surface 211 on the first clamping pieces 21; and providing a pair of second clamping pieces 41 on the lower clamping terminal 4, and providing an arc-shaped second contact surface 411 on the second clamping pieces 41; through the surface contact between the two first contact surfaces 211 and the first conductive end 31 of the fuse 3, and the surface contact between the two second contact surfaces 411 and the second conductive end 32 of the fuse 3, the electrical contact area between the fuse 3 and the upper clamping terminal 2 and the lower clamping terminal 4 is greatly increased, thereby reducing the resistance at the contact point and preventing excessive heat generation due to increased current. In addition, the first contact surfaces 211 and the second contact surfaces 411 can accelerate the heat dissipation from the fuse 3, thereby preventing abnormal temperature rise of the fuse 3 under normal use and effectively ensuring the fuse 3's safety performance.

[0029] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A fuse connection terminal for a converter socket, characterized in that: The device includes an output terminal, an upper clamping terminal, a fuse, a lower clamping terminal, and an input terminal. The output terminal is electrically connected to the upper clamping terminal; the input terminal is electrically connected to the lower clamping terminal. The upper clamping terminal has a pair of first clamping tabs, the inner side of which has an arc-shaped first contact surface. The two first clamping tabs electrically clamp the upper end of the fuse, and the first contact surface is electrically connected to and in surface contact with the first conductive end of the upper end of the fuse. The lower clamping terminal has a pair of second clamping tabs, the inner side of which has an arc-shaped second contact surface. The two second clamping tabs electrically clamp the lower end of the fuse, and the second contact surface is electrically connected to and in surface contact with the second conductive end of the lower end of the fuse.

2. The fuse connection terminal of the adapter socket according to claim 1, characterized in that: The output terminal is detachably connected to the upper clamping terminal.

3. The fuse connection terminal of the adapter socket according to claim 1, characterized in that: The upper clamping terminal includes a clamping body, a insert, and a first clamp, the insert and the first clamp being disposed on the clamping body; the output terminal has a sleeve, the sleeve having an opening facing the insert, the insert being inserted into the sleeve, and the surface and bottom surface of the insert being in conductive contact with the two inner walls of the sleeve respectively.

4. The fuse connection terminal of the adapter socket according to claim 3, characterized in that: The opening edge of the socket is provided with an outwardly extending guide portion, which guides the insert into the socket.

5. The fuse connection terminal of the adapter socket according to claim 1, characterized in that: The lower clamping terminal and the input terminal are integrally formed.

6. The fuse connection terminal of the adapter socket according to claim 1, characterized in that: The output terminal includes a conductive body, a pair of first elastic clamping arms and a pair of second elastic clamping arms. The first elastic clamping arms are disposed on opposite sides of the conductive body. A clearance hole communicating with the inner and outer sides is opened on the lower side of the first elastic clamping arms. The second elastic clamping arms are disposed on opposite sides of the conductive body and are located in the clearance hole one-to-one. The distance between the contact points of the two first elastic clamping arms is greater than the distance between the contact points of the two second elastic clamping arms.

7. The fuse connection terminal of the adapter socket according to claim 6, characterized in that: The conductive body, a pair of first elastic clamping arms, and a pair of second elastic clamping arms are all integrally formed.

8. The fuse connection terminal of the adapter socket according to claim 6, characterized in that: The first elastic clamping arm extends upward from the edge of the conductive body, and the two first elastic clamping arms are inclined toward each other; the second elastic clamping arm extends upward from the edge of the conductive body, and the two second elastic clamping arms are inclined toward each other.

9. The fuse connection terminal of the adapter socket according to claim 6, characterized in that: The height of the first elastic clamping arm is greater than the height of the second elastic clamping arm, and the width of the first elastic clamping arm is greater than the width of the second elastic clamping arm.

10. The fuse connection terminal of the adapter socket according to claim 1, characterized in that: The upper clamping terminal is provided with a connection hole.

Images