TWI389406B - Security multimeter connector - Google Patents

Description

Safety universal connector

A safety universal electrical connector, in particular an electrical connector having a plug side and a socket side, and having an open circuit protection element in the event of a current overload.

In order to ensure the safety of electricity, some countries have required fuses in household sockets to ensure the safety of users and electrical appliances when power supply is abnormal or the socket is short-circuited. For example, as shown in the "Safety Power-saving Socket Structure" of the Republic of China Patent Certificate No. M352178, the fuse can be disposed in a socket in a general home wall. The former case defines that the socket has a panel having at least one socket. And the same number of circuit protection components are provided on the sides of the sockets, and the circuit protection components are a fuse. Each socket is protected by a fuse to avoid fire or damage to the appliance. However, according to the habits of ordinary people, it is more likely to be damaged by current overload, which is to extend the socket (known as the extension cord). In the Republic of China Patent No. 563939, "Improvement of the grounding structure of the power extension socket", a fuse is disclosed. The extension socket has a complex array of three jacks, wherein the three jacks have a live wire, a ground wire guide and a grounding guide, and a protection component is connected between the ground wire guide and the grounding guide ( 151), the protection component can be a fuse (the installation position can be seen in the first diagram of the previous case). Since the wall socket and the extension socket described above have sufficient space for accommodating a fuse, it is not difficult to see a wall socket or an extension socket having a fuse on the market.

However, passengers who travel between cities or travel between business countries today do not In order to be used locally, the electrical appliances carried must be connected to the electrical connectors of different specifications. However, in order to facilitate passengers to carry, the electrical connector controls the volume as much as possible, so that the conventional electrical connector does not have a fuse. If the local voltage or current is unstable, the plugged electrical appliance may be damaged. Furthermore, the universal connector on the market has a socket compatible with various specifications and a variable plug in order to be applicable to a plurality of countries, so the internal space of the electrical connector is more complicated, and the installation is more complicated. The fuse is more inconvenient.

Because the conventional electrical connector is compatible with multi-national plugs and sockets, the terminal structure is complicated and takes up space, so the conventional electrical connector faces the dilemma of whether the cost, volume and safety of the fuse are installed. Therefore, the purpose of the present invention is to provide a universal electrical connector that can be applied to a multi-country plug, and the universal electrical connector is equipped with a fuse to ensure electrical safety.

The present invention is a secure universal electrical connector comprising a jack panel having a plurality of jacks, a plug panel having a plurality of plug terminals, and an insulative housing between the jack panel and the plug panel. The insulative housing has a fuse slot, and the first conductive structure and the second conductive structure that are electrically connected to each other are electrically connected to the different plug terminals respectively, and the feature is A conductive structure includes a slot terminal opposite to the jack, a first extension terminal electrically connected to the socket terminal, a second extension terminal electrically connected to the plug terminal, and a fuse slot mounted in the fuse slot And respectively contacting the fuse electrically connecting the first extension terminal and the second extension terminal. Branch through the slot terminal The first extension terminal is connected to the fuse, and the other end of the fuse is electrically connected to the second extension terminal, so that the socket terminal forms an electrical path with the plug terminal, and the fuse provides an excessive current in the first conductive structure. Time protection function. It should be particularly emphasized that the above-mentioned electrical connector has a jack panel and a plug panel, and can be switched between an electrical appliance and a socket of a different specification, and the jack panel can be compatible with multi-national specifications. In combination with the above technology, a portable universal adapter with a fuse to prevent overcurrent can be provided.

Please refer to Figure 1 to Figure 5 together. The present invention is a safe universal electrical connector. As shown in FIG. 1 and FIG. 2, the electrical connector includes a jack panel 3 having a plurality of jacks 31, a plug panel 2 having a plurality of plug terminals, and a jack panel. An insulating housing 1 between the plug panel 2 and a fuse slot 11 provided in the insulating housing 1. The first housing structure and the second conductive structure are electrically connected to each other, and the insulating housing 1 can be connected to the first conductive structure and the second conductive structure. Below the formed axis, the first conductive structure and the second conductive structure can respectively serve as a live line and a neutral line of the electrical connector, as shown in FIG. 3, FIG. 4 or FIG. The structure is a neutral slot terminal 5, and one side of the neutral slot terminal 5 has an opening opposite to the jack 31 of the jack panel 3, the other side of the neutral slot terminal 5 and the plug A neutral pole plug terminal 22 of the panel 2 is electrically connected, so that an external plug (not shown) inserted from the jack 31 into the neutral slot terminal 5 can be connected to the neutral pole plug terminal 22 of the plug panel 2 Form an electrical path. Similarly, the first conductive structure can serve as a live line of the electrical connector, and the external plug can pass through the first conductive structure and the plug panel 2 The live wire pole plug terminal 21 is electrically connected. The insulative housing 1 further includes a grounding terminal group 6 having a grounding hole corresponding to the grounding terminal group 6. The plug panel 2 has a grounding plug terminal electrically connected to the grounding terminal group 6. twenty three. The first conductive structure includes a FireWire slot terminal 41 opposite to the jack 31, a first extension terminal 42 electrically connected to the FireWire slot terminal 41, a second extension terminal 43, and a second mounting terminal Fuse 44 of fuse slot 11. The FireWire slot terminal 41 also has an opening opposite to the jack 31, and an external plug passing through the jack 31 is connected to the FireWire slot terminal 41, and the FireWire slot terminal 41 is connected to an extension arm 411. The extension arm 411 can be integrally formed by the fire line slot terminal 41. The extension arm 411 is used to electrically connect the other extension terminal to the first extension terminal 42. The first extension terminal 42 can also be used by the extension terminal 411. The extension arm 411 is integrally formed, and the live wire slot terminal 41, the extension arm 411, and the first extension terminal 42 are electrically connected to each other. The first extension terminal 42 is electrically connected to the fuse 44, and the fuse 44 is replaceable by a user. The fuse slot 11 is provided with an opening for the fuse 44 to be placed. A detached shutter 113 closes the opening to protect the fuse 44 (shown in Figure 2). And a plurality of through holes are formed on the wall surface of the fuse slot 11, and the through holes are distinguished from the set of first end through holes 111 and the set of second end through holes 112 in order to match the position at which the fuse 44 is electrically connected. A first connecting end 421 of the end of the first extending terminal 42 passes through the first end through hole 111 of the fuse slot 11 from the outer side of the wall surface of the fuse slot 11, and a second connecting end 431 of the end of the second extending terminal 43 The second end opening 112 is also passed through in the same manner. Therefore, the two terminals of the fuse 44 are electrically connected to the first connection end 421 and the second connection end 431 in the fuse slot 11, and the other end of the second extension terminal 43 is The live wire plug terminals 21 on the plug panel 2 are electrically connected. Thus, the first conductive structure finally forms an electrical path with the live plug terminal 21 through the live slot terminal 41, the first extension terminal 42, the fuse 44, and the second extension terminal 43. The second extension terminal 43 can be selectively connected to the live plug terminal 21 through a conductive sheet 45 (as shown in FIG. 4), or the second extension terminal 43 can be extended to the live plug terminal 21 to form a contact. Electrical pathway. Therefore, the electric power flowing between the live wire slot terminal 41 and the live wire plug terminal 21 must pass through the fuse 44, so that the electrical connector has a protection function for forcibly breaking when a current is overloaded, and the portability of the electrical connector is maintained. . Since the fire line slot terminal 41 and the live wire plug terminal 21 are close to each other, an insulation member 7 may be further spaced between the live wire slot terminal 41 and the live wire plug terminal 21 to avoid the fire wire slot terminal. 41 is in contact with the live wire plug terminal 21 to bypass the fuse 44.

In summary, the electrical connector has a fuse 44 that ensures safety. It should be additionally emphasized that the electrical connector is provided with the plug panel 2 and the jack panel 3. The plug panel 2 and the jack panel 3 have the same specifications and can be different, so that the user can be different. In the country of use, the electrical connector is used to guide different specifications of the appliance. Furthermore, the plurality of jacks 31, the grounding terminal group 6, the first conductive structure and the second conductive structure of the jack panel 3 of the electrical connector are compatible with the South African large round plug, the British standard square plug, the British specification Round plug, China and Australia size oblique plug, China and Australia size small diagonal plug, Danish specification plug, American standard plug, Middle East plug, Italy plug, Swiss plug, US 125V plug At least two specifications.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and some modifications and refinements may be included in the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

In summary, the present invention enhances the above-mentioned effects in comparison with the conventional creations, and should fully comply with the novelty and progressive statutory innovation patent requirements, and submit an application according to law, and invites you to approve the invention patent application to encourage creation. Feeling the virtues.

1‧‧‧Insulated housing

11‧‧‧Fuse slot

111‧‧‧First end perforation

112‧‧‧Perforation at the second end

113‧‧‧ visor

2‧‧‧plug panel

21‧‧‧Firewire plug terminal

22‧‧‧Neutral plug terminal

23‧‧‧Gear plug terminal

3‧‧‧ jack panel

31‧‧‧ jack

41‧‧‧Firewire slot terminal

411‧‧‧Extension arm

42‧‧‧First extension terminal

421‧‧‧ first connection

43‧‧‧Second extension terminal

431‧‧‧second connection

44‧‧‧Fuse

45‧‧‧Conductor

5‧‧‧Neutral slot terminal

6‧‧‧Ground terminal group

7‧‧‧Insulation

Figure 1 is an exploded view (1) of the electrical connector.

Figure 2 is an exploded view (2) of the electrical connector.

Figure 3 is an exploded view of the insulative housing and the plurality of conductive terminals.

4 is a perspective view of a plurality of conductive terminals.

FIG. 5 is a schematic view showing a plurality of terminals mounted in the insulating housing.

1‧‧‧Insulated housing

111‧‧‧First end perforation

112‧‧‧Perforation at the second end

113‧‧‧ visor

41‧‧‧Firewire slot terminal

411‧‧‧Extension arm

42‧‧‧First extension terminal

421‧‧‧ first connection

43‧‧‧Second extension terminal

431‧‧‧second connection

44‧‧‧Fuse

45‧‧‧Conductor

5‧‧‧Neutral slot terminal

6‧‧‧Ground terminal group

7‧‧‧Insulation

Claims (7)

A safety universal connector comprising a jack panel having a plurality of jacks, a plug panel having a plurality of plug terminals, and an insulating housing between the jack panel and the plug panel, the insulation The housing has a fuse slot, and the first conductive structure and the second conductive structure that are electrically connected to each other are electrically connected to the different plug terminals, respectively, and the first conductive structure is The device includes: a slot terminal opposite to the jack, the slot terminal and the plug terminal further have an insulating member separating the slot end from the plug terminal; and electrically connecting the slot terminal An extension terminal, the first extension terminal has a first connection end extending to the fuse slot; a second extension terminal electrically connected to the plug terminal, the second extension terminal having a first extension to the fuse slot a second connection end; a fuse mounted in the fuse slot, the two ends of the fuse are respectively electrically connected to the first connection end and the second connection end, so that the slot terminal and the plug terminal form an electric Path. The safety universal electrical connector of claim 1, wherein the slot terminal has an extension arm, and the extension arm end integrally forms the first extension terminal. The safety universal electrical connector of claim 1, wherein the insulating housing further comprises a grounding terminal group, and the jack panel has a grounding hole corresponding to the grounding terminal group, the plug panel having The grounding terminal of the grounding terminal group is electrically connected. The security universal electrical connector of claim 3, wherein the plurality of jacks of the jack panel, the first conductive structure and the second conductive structure are Large South African round plug, British size square plug, British size round plug, China and Australia size large diagonal plug, China and Australia size small diagonal plug, Danish specification plug, American standard plug, Middle East plug At least two specifications of the Italian specification plug, the Swiss specification plug, and the US specification 125V plug. The safety universal electrical connector of claim 1, wherein the fuse slot has an opening for the fuse to be placed, and a plurality of perforations are respectively provided on the wall surface of the fuse slot for the first extension terminal The second extension terminal passes through the through hole from the outer side of the wall surface of the fuse slot to enter the fuse slot. The secure universal electrical connector of claim 5, wherein the fuse slot further has a detachable shutter to close the opening of the fuse slot. The secure universal electrical connector of claim 1, wherein the fuse socket is located below an axis formed by the connection of the first conductive structure and the second conductive structure.