TWI662575B - No arcing method when the relay is mated with the joint - Google Patents

Abstract

A method for inserting and removing a relay against a joint does not generate an arc. When the relay is inserted into the joint, the relay contact terminal is first electrically connected to the joint, and then the coil terminal of the relay is electrically connected to the joint; and the relay is unplugged from the joint. In this case, the coil terminals and the joints of the relay are disconnected before the contact terminals and the joints of the relay are disconnected.

Description

   No arcing method when the relay is mated with the joint   

The present invention relates to relays, in particular, does not generate an arc during the plugging and unplugging of a relay from a circuit, and thus does not cause damage to the relay and the joints connected to the relay (the joints referred to here are provided for sockets, circuits, and electrical appliances) Relay assembler).

Relay (Relay) is an electronic control device, used in automatic control electronic circuits, such as communication switches, industrial control, vehicles or air conditioners, etc. have their applications, in fact, a smaller current to control a larger current Electronic automatic switches, for example, low-voltage batteries or microcontrollers, as long as relays can be used to switch motors, transformers, heaters, bulbs and other high-current devices. . The relay plays the roles of automatic regulation, safety protection, and switching circuit in the electronic circuit. When a current flows through the coil (excitation), the magnetic force generated by the coil will cause the pole plates of the relay to be attracted and change the contact point. When the current flowing through the coil disappears, the pole plate will return to its original position due to the reaction force of the spring. Therefore, the use of electromagnetic pickup and release can control the switching of large power equipment.

Generally speaking, under the state that the contact switch passes the current, when the contact switch is turned on and off, a spark will be generated in the air within a certain distance, which is called an arc phenomenon.

In addition, there is another condition that easily causes the phenomenon of the relay 1. In particular, the process of inserting and removing the relay 1 in the joint 10 (referred to herein as the joint 10 generally refers to the object on which the relay 1 is installed, such as sockets, appliances, and circuits). Since the coil terminal 11 and the contact terminal 12 of the relay 1 have the same length as shown in the eleventh figure, the joint 10 has a coil clamp 101 and a contact clamp spring 102 respectively to hold and locate the coil terminal 11 and the contact terminal. 12. Because the coil terminal 11 and the contact terminal 12 extend the same distance from the bottom to the outside of the relay 1, and the coil clip 101 and the contact clip 102 are arranged at the same position as the depth of the joint 10, especially the coil terminal 11 and the contact terminal 12 The two are not completely separated from the coil clamping spring 101 and the contact clamping spring 102 of the joint 10, and the dotted lines of the coil terminal 11 and the contact terminal 12 as well as the coil clamping spring 101 and the contact clamping spring 102 can be partially clamped. Contact, therefore, current will still flow through the coil clamp spring 101 and the coil terminal 11, causing the coil terminal 11 and the contact terminal 12 to easily generate an arc at this time, thereby causing damage to the relay 1 and the joint 10 to which it is connected.

In view of this, the inventor (creator) of this case, in order to solve the arc phenomenon that was easily generated when the relay 1 was inserted and removed from the joint 10 in the past, improved the relay 1 to prevent the arc phenomenon from damaging the relay 1 and the joint 10 to which the relay 1 is connected. .

The invention can avoid the occurrence of arc phenomenon during the plugging and unplugging process of the relay with respect to the joint, without causing damage to the joint to which the relay is connected.

In order to achieve the foregoing purpose and effect, a method for inserting and removing a relay with respect to a joint without generating an arc is provided. When the relay is inserted into the joint, the relay contact terminal is electrically connected to the joint first, and then the coil terminal of the relay is electrically connected to the joint. When the relay is removed from the joint, it includes disconnecting the coil terminal and the joint of the relay before disconnecting the contact terminal and the joint of the relay.

The relay includes a coil terminal and a contact terminal, and the distance that the coil terminal extends outward from the relay is defined as X1, and the distance that the contact terminal extends outward from the relay is defined as X2, where X1 <X2 (that is, the coil terminal (The length is less than the length of the contact terminal). Therefore, when the relay is pulled out, because the length of the coil terminal is shorter than the length of the contact terminal, the coil terminal will be cut off first (the current will no longer flow, that is, the coil terminal will first leave the electrical connection relationship with the joint), and then the contact terminal will (The contact terminal will only leave the joint at this time), so that the arc will not cause damage to the relay and the joint to which it is connected. When the joint is inserted into the relay assembly, the contact terminal will be electrically connected to the joint first, and then the coil terminal and the joint will be electrically connected later. No arc will be generated, and no arc will damage the joint of the relay and its connection. Thing.

The joint has a joint surface facing the relay, and the joint surface is provided with a contact jack and a coil jack that extend into the joint, and a contact clamp spring and a coil clamp spring are respectively arranged in the contact jack and the coil jack. The contact clip spring and the coil clip spring respectively hold the contact terminals and contact terminals of the relay, and the shortest distance between the contact clip spring and the mating surface is defined as Y1, and the shortest distance between the coil clip spring and the mating surface is defined as Y2. , Where Y1 <Y2 (that is, the distance between the contact clamp spring and the assembly surface is less than the distance between the coil clamp spring and the assembly surface). Therefore, when the relay coil terminal and the contact terminal are the same length, when the relay terminal is inserted into the joint jack, the contact terminal of the relay is electrically connected with the contact clip spring first, and then the coil terminal and the coil clip spring are connected electrically. When the relay is removed from the joint, the electrical connection with the coil clamp spring is cut off by the coil terminal, and then the electrical conduction with the contact clamp spring is cut off by the contact terminal.

     〔Knowledge Technology〕     

1‧‧‧ Relay

11‧‧‧coil terminal

12‧‧‧contact terminal

10‧‧‧ Joint

101‧‧‧coil clip spring

102‧‧‧Contact clip spring

     〔this invention〕     

2‧‧‧ Relay

21‧‧‧coil terminal

22‧‧‧contact terminal

3‧‧‧ Joint

31‧‧‧jack

4‧‧‧ Joint

41‧‧‧group meet

42‧‧‧contact jack

43‧‧‧coil jack

44‧‧‧ contact clip spring

45‧‧‧ Coil Clip Spring

5‧‧‧ Relay

51‧‧‧coil terminal

52‧‧‧contact terminal

The first figure is a schematic perspective view of the relay of the present invention.

The second figure is a schematic side view of the relay of the present invention.

The third figure is a three-dimensional exploded view of the relay and the joint of the present invention.

The fourth figure is a schematic side view of the assembly of the relay and the joint according to the present invention.

The fifth figure is a schematic diagram of the process of removing the relay from the joint according to the present invention, and it is only a schematic diagram of the coil terminal leaving the joint.

The sixth figure is a schematic diagram of the process of removing the relay relative to the joint according to the present invention, and the contact terminal leaves the joint.

The seventh diagram is a schematic diagram of the process of inserting the joint of the present invention by the relay terminal. The contact clamp spring is electrically connected to the contact terminal, and the coil terminal is not electrically connected to the coil clamp spring.

The eighth figure is a schematic diagram of the electrical connection between the coil terminal and the coil clamp spring following the seventh figure.

The ninth figure is a schematic diagram of the electrical connection between the coil terminal and the coil clamp spring when the relay is removed from the joint of the present invention.

The tenth figure is a schematic diagram following the ninth figure and then the contact terminal is used to cut off the electrical connection with the contact clamp spring and completely remove the relay from the joint.

The eleventh figure is a schematic diagram of a coil clamp and a contact clamp spring of a conventional relay with the same length of the coil terminal and the contact terminal without being completely separated from the joint.

In order to achieve the purpose of avoiding the occurrence of an arc phenomenon during the aforementioned process of inserting and removing the relay on the joint, the relay and the joint to which the joint is connected are not damaged. The specific feasible method is listed in the following method embodiment. The method is as follows: the method of inserting and removing the relay with respect to the joint does not generate an arc method. When the relay is inserted into the joint, the relay contact terminal is first electrically connected with the joint, and the coil of the relay is The terminal is then electrically connected to the joint; when the relay is removed from the joint, it includes disconnecting the coil terminal and the joint of the relay before disconnecting the contact terminal and the joint of the relay.

In order to achieve the aforementioned method, two feasible technical solutions are currently provided, which are to design the structure of the relay and the joint respectively, and the structure of the relay and the joint will be described separately below.

Please refer to the first and second figures in the figure. The figure shows that the relay 2 includes a coil terminal 21 and a contact terminal 22 (here, two coil terminals 21 and two contact terminals 22 are used as examples, and are not limited to coils. The number of the terminals 21 and the contact terminals 22, and the appearance of the relay 2 and the terminal appearance of the relay 2 are not limited), and the distance that the coil terminal 21 extends outward from the bottom surface of the relay 2 is defined as X1, and the contact terminal The distance 22 extending from the bottom of the relay 2 to the outside is defined as X2, where X1 <X2, that is, the length of the coil terminal 21 is less than the length of the contact terminal 22.

Regarding the purpose and effect that the relay 2 of the present invention can achieve, please refer to the second to fourth figures of the drawings in cooperation. As shown in the third figure, the relay 2 can be installed on the joint 3, and the joint 3 is provided with a number of jacks 31 arranged in accordance with the arrangement type and number of the coil terminals 21 and the contact terminals 22, and the joint 3 is provided as a switch. The operation of the circuit, and the joint 3 may be a socket, an appliance, or a circuit. The length of the coil terminal 21 extending outward from the relay 2 is smaller than the length of the contact terminal 22 extending outward from the relay 2. When the relay 2 is removed, the length of the coil terminal 21 is smaller than the length of the contact terminal 22. Therefore, in the process of removing the relay 2, the coil terminal 21 will leave the joint 3 first, that is, the coil terminal 21 will be cut off first (there is no current flowing, that is, the coil terminal 21 will leave the electrical connection relationship with the joint 3) as shown in the figure. Figure 5, only after the contact terminal 22 is cut off (the contact terminal 22 will leave the joint 3 at this time), as shown in the sixth figure, so that no arc will be caused to cause the relay 2 and the joint connected by the relay 2 3 injuries. Conversely, if the relay 2 is inserted into the joint 3, the contact terminal 22 is longer than the coil terminal 21, so the contact terminal 22 and the joint 3 are electrically connected before the coil terminal 21 and the joint 3 are electrically connected. Electrically connected. According to the purpose and effect of the invention. It must be noted that the scheme of the present invention is based on the removal of relay 2 from joint 3 as an example. However, when relay 2 is inserted into joint 3 as well, the contact terminals 22 and coil terminals 21 of relay 2 can be generated relative to joint 3. The structural features of the effect, especially when the direction of the arrow symbol is not considered in the fifth figure, the coil terminal 21 of the relay 2 in the figure is not inserted into the joint 3, and only the contact terminal 22 of the relay 2 is inserted into the joint 3.

Please refer to the seventh to tenth figures. The figure shows the joint 4 and the relay 5. The relay 5 includes a coil terminal 51 and a contact terminal 52, and the length of both the coil terminal 51 and the contact terminal 52 is the same. The joint 4 has a joint surface 41 facing the relay 5, and the joint surface 41 is provided with a contact jack 42 and a coil jack 43 that extend into the joint 4, and are also in the contact jack 42 and the coil jack 43. The contact clip spring 44 and the coil clip spring 45 are configured respectively. The contact clip spring 44 and the coil clip spring 45 respectively hold the contact terminal 52 and the contact terminal 52 of the relay 5 and the shortest distance between the contact clip spring 44 and the mating surface 41 is defined. Y1, and the shortest distance between the coil clamp spring 45 and the mating surface 41 is defined as Y2, where Y1 <Y2 (that is, the distance between the contact clamp spring 44 and the mating surface 41 is smaller than the coil clamp spring 45 and the mating surface 52 Distance, as shown in the tenth figure).

Therefore, when the coil terminal 51 and the contact terminal 52 of the relay 5 are the same length, and the terminal of the relay 5 is inserted into the joint 4 jack, the contact terminal 52 of the relay 5 will be electrically connected to the contact clamp spring 44 (as shown in the seventh figure). ), And then the coil terminal 51 and the coil clamp spring 45 are electrically connected (as shown in the eighth figure). When the relay 5 is removed from the joint 4, the electrical connection with the coil clamping spring 45 is cut off by the coil terminal 51 (as shown in the ninth figure), and then the electrical contact with the contact clamping spring 44 is cut off by the contact terminal 52. Sexual conduction (as shown in Figure 10).

According to the above description, when the relays 2 and 5 are pulled out from the joints 3 and 4, the present invention uses the coil terminals 21 and 51 of the relays 2 and 5 to disconnect the relays 3 and 4 before the relays are disconnected. The contact terminals 22 and 52 of 2 and 5 and the joints 3 and 4 can avoid the occurrence of arcing of relays 2 and 5 and therefore do not cause the joints 3 and 4 of relays 2 and 5 and the joints of relays 2 and 5. s damage. Similarly, when the relays 2 and 5 are inserted into the joints 3 and 4, the contact terminals 22 and 52 of the relays 2 and 5 are electrically connected to the joints 3 and 4 first, and the coil terminals 21 and 51 of the relays 2 and 5 are then joined. Object 3 is electrically connected.

Claims (3)

A method for inserting and removing a relay against a joint does not generate an arc. When the relay is inserted into the joint, the relay contact terminal is first electrically connected to the joint, and then the coil terminal of the relay is electrically connected to the joint; and the relay is unplugged from the joint. In this case, the coil terminals and the joints of the relay are disconnected before the contact terminals and the joints of the relay are disconnected. As described in claim 1, the method of inserting and removing the relay with respect to the joint does not generate an arc method, wherein the relay includes a coil terminal and a contact terminal, and the distance of the coil terminal extending outward from the relay is defined as X1, and the contact terminal is directed by the relay to The extended distance is defined as X2, where X1 <X2, that is, the length of the coil terminal is less than the length of the contact terminal. The method of inserting and removing the relay with respect to the joint as described in claim 1 does not generate an arc method, wherein the joint has a mating surface facing the relay, and the mating surface is provided with a contact jack and a coil jack protruding into the joint, A contact clip spring and a coil clip spring are respectively arranged in the contact jack and the coil jack. The contact clip spring and the coil clip spring respectively hold the contact terminal and the contact terminal of the relay, and the shortest distance between the contact clip spring and the mating surface It is defined as Y1, and the shortest distance between the coil clamp spring and the assembly surface is defined as Y2, where Y1 <Y2.