CN212434551U - Novel relay - Google Patents

Abstract

The utility model relates to the technical field of relays, in particular to a novel relay, which comprises a relay body, two static contact bridges, a movable contact bridge, a driving shaft, a driving mechanism and at least one auxiliary terminal component, wherein the auxiliary terminal component comprises two auxiliary terminals, an insulating seat, an auxiliary movable contact piece, an auxiliary static contact piece and an insulating clamping component; the movable contact and the fixed contact are arranged at intervals in the height direction, the driving shaft is sleeved with an insulating clamping piece, and the end part of the auxiliary movable contact, provided with the movable contact, extends towards the insulating clamping piece and is clamped and matched with the insulating clamping piece; compared with the prior art, the fixing mode that the auxiliary moving contact piece is fixed on the driving shaft in the prior art is replaced, the load of the driving shaft is reduced, and the problem that the auxiliary moving contact piece falls off from the driving shaft is solved.

Description

Novel relay

Technical Field

The utility model relates to a relay technical field, concretely relates to novel relay.

Background

The existing relay generally comprises a ceramic shell, a connecting table and a magnetic circuit shell, wherein the magnetic circuit shell is used for loading a coil, a supporting plate is arranged at the top of the magnetic circuit shell to separate the coil from the ceramic shell, so that the ceramic shell, the connecting table and the supporting plate are hermetically connected to form an arc extinguishing cavity, and two static contact bridges, a movable contact bridge, a driving shaft and a driving mechanism are arranged in the arc extinguishing cavity. The two static contact bridges are fixedly arranged on the ceramic shell, one end parts of the static contact bridges extend out of the ceramic shell, and the other end parts of the static contact bridges are inserted into the ceramic shell; the bottom end of the driving shaft penetrates through the supporting plate and then is inserted into the magnetic circuit shell, the top end of the driving shaft extends into the arc extinguishing cavity, and the movable contact bridge is fixedly installed at the upper end of the driving shaft. The driving mechanism is arranged in the magnetic circuit shell and is used for driving the driving shaft to drive the movable contact bridge to move, so that the movable contact bridge and the two static contact bridges are closed or disconnected.

In order to monitor the problem of failure of the relay caused by the fact that a movable contact bridge is not conducted when the relay is conducted or the movable contact bridge is still attracted to a fixed contact bridge when the movable contact bridge is separated, a group of auxiliary terminal assemblies are usually added to the conventional relay, and the fault is rapidly detected through an auxiliary detection circuit externally connected with the auxiliary terminal assemblies.

The existing auxiliary terminal assembly comprises an auxiliary movable contact piece and an auxiliary static contact piece, wherein the auxiliary static contact piece is generally fixed in an arc extinguishing cavity, the auxiliary movable contact piece is fixedly arranged on a driving shaft, and the auxiliary movable contact piece are respectively connected with an auxiliary terminal used for being connected with an external detection line. In practical application, when the driving shaft drives the movable contact bridge and the static contact bridge to be sucked, the auxiliary movable contact piece on the driving shaft can move towards the auxiliary static contact piece, when the auxiliary static contact piece is contacted with the auxiliary movable contact piece, an external auxiliary detection circuit forms a loop through the auxiliary terminal, the auxiliary static contact and the auxiliary movable contact, and therefore the relay is detected. In order to avoid the conduction between the auxiliary movable contact piece and the driving shaft, the auxiliary movable contact piece and the driving shaft are generally provided with insulating pieces to separate and insulate the auxiliary movable contact piece and the driving shaft, the mode of fixing the auxiliary movable contact piece can increase the load of the driving shaft and is not beneficial to the control of the driving shaft, in addition, under the frequent opening and closing application, the auxiliary movable contact piece can be loosened relative to the driving shaft, once the auxiliary movable contact piece is loosened, the detection function can not be normally carried out, the connection strength is poor, the normal work of the relay is influenced, and safety accidents are easy to generate.

In addition, the existing relay is only provided with one auxiliary terminal assembly, once the auxiliary terminal assembly fails or reports errors, the relay needs to be replaced or debugged immediately, the fault tolerance rate is low, the working stability is poor, and the use is very inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the not enough among the prior art, and provide a novel relay, adopt this relay can solve the unstable problem of supplementary terminal subassembly work.

The purpose of the utility model is realized through the following technical scheme:

the novel relay comprises a relay body, two static contact bridges, a movable contact bridge, a driving shaft and a driving mechanism; the two static contact bridges are fixedly arranged on the relay body; the novel relay also comprises at least one auxiliary terminal assembly, wherein the auxiliary terminal assembly comprises two auxiliary terminals, an insulating seat, an auxiliary movable contact piece, an auxiliary static contact piece and an insulating clamping piece; the movable contact and the fixed contact are arranged at intervals in the height direction, the driving shaft is sleeved with an insulating clamping piece, and the end part of the auxiliary movable contact, provided with the movable contact, extends towards the insulating clamping piece and is clamped and matched with the insulating clamping piece; the number of the auxiliary terminal assemblies is two, and the two auxiliary terminal assemblies are symmetrically arranged by taking the axis of the movable contact bridge as a symmetry axis.

Wherein, the insulating card is held the piece and is the I shape setting, and the upper end and the lower tip that the insulating card was held all extend outward and keep off the ring, and the tip of supplementary movable contact spring inserts between two fender rings.

The outer periphery of the insulating clamping piece extends out of the clamping block, and the end part of the auxiliary movable contact piece extends towards the insulating clamping piece and is arranged on the outer periphery of the clamping block in a surrounding mode.

The relay body comprises a ceramic shell, a connecting table and a magnetic circuit shell, wherein a coil is arranged in the magnetic circuit shell, and a supporting plate is arranged at the top of the magnetic circuit shell so as to separate the coil from the ceramic shell.

The ceramic shell is provided with a mounting hole for the auxiliary terminal to pass through, the auxiliary terminal is inserted into the mounting hole in an assembly state, a copper sleeve is arranged between the auxiliary terminal and the mounting hole, and the copper sleeve is sleeved on the outer peripheral side of the auxiliary terminal.

Wherein, the longitudinal section of the mounting hole is arranged in a conical shape.

The relay comprises a relay body, a shell, a PCB and a magnetic conduction frame, wherein the PCB is provided with a through hole for a static contact bridge to pass through, the PCB is fixedly arranged on the outer peripheral side of the static contact bridge, the magnetic conduction frame is fixedly arranged between the PCB and the relay body, the magnetic conduction frame covers the top end part of the relay body so as to enable the PCB to be separated from the relay body, and the inner side surface of the magnetic conduction frame is provided with a pair of permanent magnets to form a magnetic field; the PCB, the magnetic conduction frame and the relay body are all fixedly installed in the shell.

The static contact bridge comprises a PCB, a static contact bridge and a conducting wire, wherein the static contact bridge further comprises an external terminal and a conducting wire, the external terminal is welded on the PCB, a voltage acquisition module is welded on the PCB, at least one clamping ring with an opening is sleeved on the outer peripheral side of the static contact bridge, one end part of the conducting wire is connected with the input end of the voltage acquisition module through the PCB, the output end of the voltage acquisition module is connected to the external terminal through the PCB, and the other end part of the conducting wire is clamped on the static contact bridge through the.

Wherein, each auxiliary terminal all is connected with the PCB board through the wire, and the output of auxiliary terminal is connected with external terminal through the PCB board, and external terminal is the connector that has DB15 needle interface.

The connector comprises a shell, a connector body and a controller, wherein the connector body is arranged on the side face of the shell, a connecting plate is arranged between the controller and the shell, a first counter bore and a second counter bore are formed in the connecting plate, a first screw in threaded connection with the side face of the shell is arranged in the first counter bore, a second screw in threaded connection with the side face of the controller is arranged in the second counter bore, and the connector with a DB15 needle interface is also arranged on the controller.

The utility model has the advantages that:

the working process of the novel relay is as follows: the relay is electrified, the driving mechanism pushes the driving shaft to move upwards, the movable contact bridge and the static contact bridge are attracted, the relay is in an electrified state, in the process that the driving shaft moves upwards, the insulating clamping piece sleeved on the driving shaft moves upwards along with the driving shaft, and the end part of the auxiliary movable contact piece is shifted when the insulating clamping piece moves upwards, so that the movable contact of the auxiliary movable contact piece is communicated with the static contact of the auxiliary static contact piece to form an auxiliary detection loop;

compared with the prior art, the fixing mode that the traditional auxiliary movable contact piece is fixed on the driving shaft is replaced, the load of the driving shaft is reduced, the problem that the auxiliary movable contact piece falls off from the driving shaft is solved, the mounting structural strength of the auxiliary movable contact piece and the auxiliary static contact piece is enhanced, and the working stability of the relay is further enhanced;

in addition, the two auxiliary terminal assemblies are arranged, when one auxiliary terminal assembly fails, the other auxiliary terminal assembly can play a standby role, whether the relay needs to be replaced or repaired is judged through information fed back by the standby auxiliary terminal assembly, and the fault tolerance of the relay is improved.

Drawings

The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.

Fig. 1 is a schematic structural diagram of a relay in embodiment 1.

Fig. 2 is an exploded view of the relay according to embodiment 1.

Fig. 3 is a sectional view of the relay according to embodiment 1.

Fig. 4 is a schematic structural view of a static bridge in embodiment 1.

Fig. 5 is an exploded view of the static bridge in embodiment 1.

Fig. 6 is an exploded view of the relay body according to embodiment 1.

Fig. 7 is a plan view of the relay body according to embodiment 1.

Fig. 8 is a cross-sectional view taken at a-a in fig. 7.

Fig. 9 is a schematic structural view of the insulating base in embodiment 1.

Fig. 10 is a schematic structural view of the auxiliary moving contact piece in embodiment 1.

Fig. 11 is a cross-sectional view at B-B in fig. 7.

Fig. 12 is a cross-sectional view at C-C in fig. 7.

Fig. 13 is a schematic structural diagram of the relay and the controller in embodiment 1.

Fig. 14 is an exploded view of the relay and the controller according to embodiment 1.

FIG. 15 is an exploded view of the relay body according to embodiment 2 with the ceramic case hidden.

Fig. 16 is a sectional view of the relay body according to embodiment 2 with the ceramic case hidden.

Reference numerals: the relay comprises a relay body 100, a ceramic shell 11, a connecting table 12, a magnetic circuit shell 13, a coil 131, a supporting plate 132, a housing 1, a static contact bridge 2, a movable contact bridge 20, a stainless steel column 21, a copper base 22, a static contact portion 23, a clamping groove 24, an external terminal 3, a PCB 4, a magnetic conduction frame 5, a conductive wire 6, an auxiliary terminal 7, a mounting hole 71, a copper bush 72, a clamping ring 8, an insulating seat 81, a convex column 811, an auxiliary movable contact 82, a movable contact 821, an auxiliary static contact 83, a static contact 831, a clamping block 84, a driving shaft 91, an insulating clamping piece 92, a retaining ring 921, a through hole 401, a folded portion 411, a positioning hole 422, a convex ring 421, a first clamping piece 441, a second clamping piece 442, a first clamping portion 451, a second clamping portion 452, a controller 200, a connecting plate 201, a first countersunk hole 211 and a second countersunk hole 212.

Detailed Description

The invention will be further described with reference to the following examples.

Example 1

The utility model discloses a novel relay's embodiment please see fig. 1 and fig. 2, and the relay includes shell 1, PCB board 4, magnetic conduction frame 5 and relay body 100. The top portion of relay body 100 is equipped with a pair of stationary contact bridge 2 that stretches out to shell 1 top, and the welding has the external terminal 3 that is used for external on the PCB board 4, and external terminal 3 also wears out shell 1. The PCB 4 is provided with a through hole for the static contact bridge 2 to pass through, the PCB 4 is fixedly installed on the outer peripheral side of the static contact bridge 2, the distances between the static contact bridge 2 and the PCB 4 and between the relay body 100 and the PCB 4 can be effectively shortened, the length required by a wire is reduced, and the resistance of the wire is further reduced.

Referring to fig. 2, a magnetic frame 5 is disposed between the relay body 100 and the PCB 4, and the magnetic frame 5 covers the top end of the relay body 100, so as to separate the PCB 4 from the relay body 100. The permanent magnets are arranged on two sides inside the magnetic conduction frame 5, so that a magnetic field is generated, when the static contact part 23 is cut off (separated from the movable contact component), electric arcs are generated along with the magnetic field, the magnetic field can effectively control the electric arcs, and interference caused by other factors on signal transmission of the PCB 4 is effectively avoided.

In this embodiment, the PCB 4 is further welded with a conventional analog voltage acquisition module (not shown), an input end of the voltage acquisition module is connected with the static contact bridge 2 through a conductive wire 6, an output end of the voltage acquisition module is connected to an input end of the external terminal 3 through the PCB 4, and an external electronic component such as a controller 200 can be connected with the external terminal 3 in a pluggable manner to acquire the relay voltage. Through setting up PCB board 4 that has voltage acquisition module, conductor wire 6 is connected static contact bridge 2 and PCB board 4 to voltage acquisition module can gather the voltage of static contact bridge 2, and then outside electronic equipment is connected with external terminal 3, acquires data display from voltage acquisition module through PCB board 4, has solved the problem that needs the manual work to carry out the collection in the past, has reduced staff's intensity of labour, has improved work efficiency.

Referring to fig. 3 to 5, in order to facilitate the connection between the static contact bridge 2 and the conductive wire 6, a retaining ring with an opening is sleeved on the outer peripheral side of the static contact bridge 2, one end of the conductive wire 6 is welded to the PCB 4, and the other end of the conductive wire 6 is clamped on the static contact bridge 2 by the retaining ring. The electric lead 6 is electrically connected with the static contact bridge 2 by clamping the clamping ring, so that the former welding connection mode is replaced, the labor intensity of workers is further reduced, and the working efficiency is further improved. In order to further enhance the connection strength between the conductive wire 6 and the static contact bridge 2, please refer to fig. 5, a circle of clamping grooves 24 is arranged on the outer side surface of the static contact bridge 2, and in an assembled state, the clamping ring is inserted into the clamping grooves 24.

In this embodiment, please see fig. 3 to 5, the static contact bridge 2 includes a copper base 22 and a stainless steel rod, the copper base 22 is used for contacting the conductive wire 6, a static contact portion 23 extends downward from the bottom surface of the copper base 22, the copper base 22 is clamped in the relay body 100, the stainless steel rod extends out of the relay as the working end of the structure of the static contact bridge 2, and the static contact portion 23 is used as the static contact component of the relay to cooperate with the movable contact component to realize the closing and opening of the relay.

As a modification, referring to fig. 3 to 5, a threaded hole is formed in the top surface of the copper base 22, and in an assembled state, the stainless steel rod is inserted into and fixed in the threaded hole of the copper base 22. The copper base 22 is made of pure copper, and the stainless steel rod is made of stainless steel material. The stainless steel pole adopts stainless steel material preparation to form as the work end of static bridge 2, and the yield strength of stainless steel will be higher than copper, has solved in the past the problem that the work end of static bridge 2 takes place to warp under high temperature environment, has strengthened the structural strength of static bridge 2, has further improved the stability and the security of relay work.

In this embodiment, in order to ensure the connection strength and the conductivity of the stainless steel rod and the copper base 22, an internal thread is provided in the threaded hole, and an external thread matching and screwing with the internal thread is provided on the outer peripheral side of one end of the stainless steel rod. The fixing mode of adopting threaded connection is convenient for dismouting and maintenance, makes overall structure more firm and compact, and as preferred scheme, the stainless steel pole can adopt the hexagon socket head cap screw to replace.

Referring to fig. 6 to 8, the relay body 100 includes a ceramic case 11, a connection stage 12, and a magnetic circuit case 13, a coil 131 is provided in the magnetic circuit case 13, and a support plate 132 is provided on the top of the magnetic circuit case 13 to space the coil 131 from the ceramic case 11. Two static contact bridges 2, a movable contact bridge 20, a driving shaft 91 and a driving mechanism are arranged in the relay body 100. Two static contact bridges 2 are fixedly arranged on the relay body 100, the driving shaft 91 is arranged in the relay body 100, the movable contact bridge 20 is arranged at the upper end of the driving shaft 91 through an insulating part, the installation modes and principles of the static contact bridge 2, the driving shaft 91 and the movable contact bridge 20 are the same as those of the existing relay, and a person skilled in the art can easily know the working principle and the motion process among the three.

Referring to fig. 8 to 9, the novel relay further includes two auxiliary terminal assemblies, each of which includes an insulating base 81, an auxiliary movable contact 82, an auxiliary stationary contact 83, an insulating holding member 92, and two auxiliary terminals (terminals). In the present embodiment, the two auxiliary terminal assemblies share the insulating housing 81, and the insulating housing 81 is fixed inside the relay body 100. The two auxiliary terminals are inserted into the relay body 100 and are respectively and fixedly connected with one end of the auxiliary movable contact piece 82 and one end of the auxiliary static contact piece 83, and the movable contact 821 and the static contact 831 are respectively and fixedly installed at the other end of the auxiliary movable contact piece 82 and the other end of the auxiliary static contact piece 83.

In this embodiment, the number of the auxiliary terminal assemblies is two, when one of the auxiliary terminal assemblies fails, the other auxiliary terminal assembly can play a standby role, and whether the relay needs to be replaced or repaired is judged according to information fed back by the standby auxiliary terminal assembly, so that the fault tolerance of the relay is improved. In addition, the two auxiliary terminal assemblies are symmetrically arranged by taking the axis of the movable contact bridge as a symmetry axis, and can judge whether the driving shaft 91 deviates in two different directions, so that more information is provided for subsequent maintenance or the working state of the relay, and more favorable information is provided for the subsequent research and development of the relay.

The auxiliary movable contact piece 82 or the auxiliary stationary contact piece 83 is detachably mounted on the insulating holder 81. Referring to fig. 9, taking the schematic structural diagram of the auxiliary moving contact 82 as an example for explanation, the end of the auxiliary moving contact 82 or the auxiliary static contact 83 is folded back to the length direction thereof to form a folded part 411 closely attached to the auxiliary moving contact 82 or the auxiliary static contact 83. Specifically, the folded portion 411 may be formed by bending first, and then the folded portion 411 is tightly attached to the auxiliary movable contact piece 82 or the auxiliary static contact piece 83 by patting, so as to form the folded portion 411 tightly attached to the auxiliary movable contact piece 82 or the auxiliary static contact piece 83. The end part of the auxiliary movable contact piece 82 or the auxiliary static contact piece 83 is turned back to the length direction of the auxiliary movable contact piece 82 or the auxiliary static contact piece 83 to form a turning part 411 tightly attached to the auxiliary movable contact piece 82 or the auxiliary static contact piece 83, so that the turning part 411 is not required to be polished with notches or burrs, the labor intensity of polishing workers is reduced, and the working efficiency is improved.

In this embodiment, referring to fig. 10, one end portion of the auxiliary movable contact piece 82 or the auxiliary fixed contact piece 83 is formed with a collet, and the other end portion of the auxiliary movable contact piece 82 or the auxiliary fixed contact piece 83 is provided with a through hole 401 passing through the folded portion 411. The through hole 401 is used for installing the movable contact 821 or the stationary contact 831, and the thickness of the opening of the through hole 401 is increased due to the arrangement of the folded part 411, so that the movable contact 821 or the stationary contact 831 can be installed more firmly.

In addition, referring to fig. 9 and 10, the auxiliary moving contact 82 or the auxiliary stationary contact 83 is provided with a plurality of positioning holes 422 for positioning, and a convex ring 421 is formed upward from the positioning holes 422. The positioning hole 422 is used for forming a clamping fit with the convex column 811 on the insulating seat 81, and is used for fixing and limiting the movement of the auxiliary movable contact piece 82 or the auxiliary static contact piece 83. As a modification, a collar 421 of the positioning hole 422 is formed on the auxiliary movable contact piece 82 or the auxiliary stationary contact piece 83 by burring. Through the flanging and punching processing technology, the punched excess material forms the convex ring 421, so that burrs of the positioning holes 422 are avoided, the labor intensity of polishing workers is further reduced, and the working efficiency is improved.

In this embodiment, please see fig. 10, the chuck includes a first clamping piece 441 and a second clamping piece 442 for clamping the signal end portion, the first clamping piece 441 and the second clamping piece 442 are both disposed in a vertical V shape, one end of the first clamping piece 441 is fixedly connected to the auxiliary movable contact 82 or the auxiliary static contact 83, the other end of the first clamping piece 441 is fixedly connected to one end of the second clamping piece 442, the other end of the second clamping piece 442 is bent obliquely upward to form a second clamping portion 452, and a joint of the first clamping piece 441 and the auxiliary movable contact 82 or the auxiliary static contact 83 is bent obliquely downward to form a first clamping portion 451. The first clamping portion 451 and the second clamping portion 452 cooperate to form an elastic clamping mechanism, which can firmly clamp and conduct the signal terminals.

As a modification, referring to fig. 8 to 11, the movable contact 821 and the fixed contact 831 are spaced apart in the height direction, that is, the installation plane of the auxiliary movable contact 821 is offset from the installation plane of the auxiliary fixed contact 831 in the height direction. The driving shaft 91 is sleeved with an insulating clamping member 92, and the end of the auxiliary movable contact spring 82 where the movable contact 821 is installed extends towards the insulating clamping member and is in clamping fit with the insulating clamping member.

Referring to fig. 11, the insulating holder 92 is disposed in an i-shape, the upper end and the lower end of the insulating holder 92 both extend outward to form a retaining ring 921, and the end of the auxiliary moving contact 82 is inserted between the two retaining rings 921. The relay is electrified, the driving mechanism pushes the driving shaft 91 to move upwards, the movable contact bridge 20 and the static contact bridge 2 are attracted, and the relay is in an electrified state; in the process that the driving shaft 91 moves upwards, the insulating clamping piece sleeved on the driving shaft 91 moves upwards along with the driving shaft 91, and when the insulating clamping piece moves upwards, the baffle ring 921 positioned below can shift the end part of the auxiliary movable contact 82, so that the movable contact 821 of the auxiliary movable contact 82 is communicated with the static contact 831 of the auxiliary static contact 83 to form an auxiliary detection loop. The electrified device is disconnected, the magnetic force disappears, the driving shaft 91 resets under the driving of the spring, the driving shaft 91 can drive the insulating clamping piece 92 to move downwards together in the process of resetting and moving, the baffle ring 921 of the insulating clamping piece, which is positioned above the insulating clamping piece, can press down the end part of the auxiliary movable contact piece 82, so that the auxiliary movable contact piece 82 is forcibly separated from the auxiliary static contact piece 83, the vertical shaking is avoided, the quick stop is realized, the auxiliary terminal assembly can be disconnected simultaneously when the main contact assembly is disconnected, the working stability of the relay is enhanced, in addition, the I-shaped structure is adopted to separate the auxiliary movable contact piece from the auxiliary static contact piece, and even in a bumpy environment, the movable contact and the static contact cannot be attached. Compared with the prior art, the fixing mode that the auxiliary movable contact piece 82 is fixed on the driving shaft 91 in the prior art is replaced, the load of the driving shaft 91 is reduced, the problem that the auxiliary movable contact piece 82 falls off from the driving shaft 91 is solved, the mounting structural strength of the auxiliary movable contact piece 82 and the auxiliary static contact piece 83 is enhanced, and the working stability of the relay is further enhanced.

Referring to fig. 6 and 12, the ceramic shell 11 is provided with a mounting hole 71 for the auxiliary terminal to pass through, in an assembled state, the auxiliary terminal is inserted into the mounting hole 71, a copper sleeve 72 is disposed between the auxiliary terminal and the mounting hole 71, and the copper sleeve 72 is sleeved on an outer peripheral side of the auxiliary terminal. Since the auxiliary terminals are inserted from the outside of the ceramic case 11, a seal must be formed between the auxiliary terminals and the mounting holes 71 of the ceramic case 11 in order to form the arc extinguishing chamber. In actual manufacturing, the diameter of the mounting hole 71 is generally much larger than the radius of the terminal, so if the auxiliary terminal is directly welded to the ceramic shell 11, the welding is difficult, and more chips are easily generated to fall into the relay, which causes safety problems. Therefore, in the embodiment, the copper sleeve 72 is sleeved outside the auxiliary terminal, the auxiliary terminal is fixed in the mounting hole 71, and then welding sealing is performed, so that the welding labor intensity is obviously reduced, and chips can be effectively prevented from falling into the relay during welding. In order to further improve the convenience of welding the copper bush 72, the mounting hole 71 is arranged in a conical shape, that is, the longitudinal section of the mounting hole 71 is arranged in a conical shape, and the mounting hole 71 and the copper bush 72 can be limited and fixed by the friction force between the mounting hole 71 and the copper bush before welding through the conical characteristic, so that the auxiliary terminal is prevented from loosening in the welding process, and the welding quality is improved.

In the present embodiment, referring to fig. 2, each auxiliary terminal 7 is connected to the PCB 4 through a wire, the output end of the auxiliary terminal 7 is connected to the input end of the external terminal 3 through the PCB 4, and the external terminal 3 is a connector with a DB15 pin interface, that is, the interface of the external terminal 3 is of a DB15 pin interface type. Similarly, the output end of the voltage acquisition module on the PCB 4 is connected to the input end of the external terminal 3 through the PCB 4. Adopt the connector of DB15 needle interface as the delivery outlet, replaced the mode that adopts single terminal post in the past, need not to set up a plurality of terminal posts and correspond each electronic component's signal output part, simplified the output interface of relay, it is more convenient and firm during the connection.

Referring to fig. 13 and 14, in the present embodiment, the relay with the connector further includes a controller 200, the controller 200 is disposed on a side surface of the housing 1, a connection plate 201 is disposed between the controller 200 and the housing 1, the connection plate 201 is provided with a first countersunk hole 211 and a second countersunk hole 212, a first screw screwed with the side surface of the housing 1 is disposed in the first countersunk hole 211, a second screw screwed with the side surface of the controller 200 is disposed in the second countersunk hole 212, and the controller 200 is also provided with a D-SUB connector with a DB15 pin interface. Traditional controller generally all is integrated on PCB board 4, then can lead to traditional relay cost higher like this, to some relay disconnection and closed function that only need to use, need not to use the relay that the condition that obtains relay working data can adopt this embodiment, the relay of this embodiment can be through dismantling controller 200 to save the consumption of cost, in addition, to the condition that controller 200 damaged, only need dismantle controller 200 change can, need not the whole dismouting of relay.

Example 2

Referring to fig. 15 or fig. 16, the main technical solution of this embodiment is the same as that of embodiment 1, and the features not explained in this embodiment adopt the explanations in embodiment 1, and are not described again here. This example differs from example 1 in that: an outer peripheral side of the insulating holder 92 extends out of the holding block 84, and an end of the auxiliary movable contact 82 extends toward the insulating holder and is wound around the outer peripheral side of the holding block 84. In the present embodiment, the holding block 84 has an elongated shape so that the insulating holder 92 has a similar overall structure to the movable contact bridge 20. Similarly, the auxiliary movable contact piece 82 and the auxiliary stationary contact piece 83 in this embodiment are fixedly mounted on the insulating base 81, and the end of the auxiliary movable contact piece 82 is wound around the outer peripheral side of the holding block 84.

The relay is electrified, the driving mechanism pushes the driving shaft 91 to move upwards, the movable contact bridge 20 and the static contact bridge 2 are attracted, and the relay is in an electrified state; in the process that the driving shaft 91 moves upwards, the insulating clamping piece sleeved on the driving shaft 91 moves upwards along with the driving shaft 91, when the insulating clamping piece moves upwards, the top end part of the clamping block 84 abuts against the auxiliary movable contact 82, so that the movable contact 821 of the auxiliary movable contact 82 is communicated with the fixed contact 831 of the auxiliary fixed contact 83 to form an auxiliary detection loop. When the power-on device is disconnected, the magnetic force disappears, the driving shaft 91 is reset under the driving of the spring, the driving shaft 91 drives the clamping block 84 to move downwards together in the resetting moving process, the bottom end face of the clamping block 84 presses the auxiliary movable contact piece 82 downwards so that the auxiliary movable contact piece 82 is separated from the auxiliary static contact piece 83 in a forced mode, the rapid stopping is achieved, the auxiliary terminal assembly can be disconnected simultaneously when the main contact assembly is disconnected, and the working stability of the relay is enhanced. Compared with the prior art, the fixing mode that the auxiliary movable contact piece 82 is fixed on the driving shaft 91 in the prior art is replaced, the load of the driving shaft 91 is reduced, the problem that the auxiliary movable contact piece 82 falls off from the driving shaft 91 is solved, the mounting structural strength of the auxiliary movable contact piece 82 and the auxiliary static contact piece 83 is enhanced, and the working stability of the relay is further enhanced.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. A novel relay comprises a relay body, a driving mechanism, a movable contact bridge, a driving shaft and two static contact bridges; the two static contact bridges are fixedly arranged on the relay body; the drive shaft is installed in the relay body, the movable contact bridge passes through insulating part and installs drive shaft upper end, its characterized in that: the novel relay also comprises at least one auxiliary terminal assembly, the auxiliary terminal assembly comprises an insulating clamping piece, an insulating seat, an auxiliary movable contact piece, an auxiliary static contact piece and two auxiliary terminals, the insulating seat is fixed in the relay body, the auxiliary movable contact piece and the auxiliary static contact piece are both detachably installed on the insulating seat, the two auxiliary terminals are inserted into the relay body and respectively and correspondingly fixedly connected with one end of the auxiliary movable contact piece and one end of the auxiliary static contact piece, and a movable contact and a static contact are respectively and fixedly installed at the other end of the auxiliary movable contact piece and the other end of the auxiliary static contact piece;

the movable contact and the fixed contact are arranged at intervals in the height direction, the driving shaft is sleeved with an insulating clamping piece, and the end part of the auxiliary movable contact piece, provided with the movable contact, extends towards the insulating clamping piece and is in clamping fit with the insulating clamping piece;

the number of the auxiliary terminal assemblies is two, and the two auxiliary terminal assemblies are symmetrically arranged by taking the axis of the movable contact bridge as a symmetry axis.

2. The novel relay according to claim 1, characterized in that: the insulating clamping piece is arranged in an I shape, the upper end part and the lower end part of the insulating clamping piece extend outwards to form baffle rings, and the end part of the auxiliary movable contact piece is inserted between the two baffle rings.

3. The novel relay according to claim 1, characterized in that: the periphery side of the insulating clamping piece extends out of the clamping block, and the end part of the auxiliary movable contact piece extends towards the insulating clamping piece and is arranged on the periphery side of the clamping block in a surrounding mode.

4. The novel relay according to claim 1, characterized in that: the relay body comprises a ceramic shell, a connecting table and a magnetic circuit shell, wherein a coil is arranged in the magnetic circuit shell, and a supporting plate is arranged at the top of the magnetic circuit shell so as to separate the coil from the ceramic shell.

5. The novel relay according to claim 4, characterized in that: the ceramic shell is provided with a mounting hole for the auxiliary terminal to pass through, the auxiliary terminal is inserted into the mounting hole in an assembly state, a copper sleeve is arranged between the auxiliary terminal and the mounting hole, and the copper sleeve is sleeved on the outer peripheral side of the auxiliary terminal.

6. The novel relay according to claim 5, characterized in that: the longitudinal section of the mounting hole is arranged in a conical shape.

7. The novel relay according to claim 1, characterized in that: the relay comprises a relay body and is characterized by further comprising a shell, a PCB and a magnetic conduction frame, wherein the PCB is provided with a through hole for the static contact bridge to pass through, the PCB is fixedly installed on the outer peripheral side of the static contact bridge, the magnetic conduction frame is fixedly installed between the PCB and the relay body, the magnetic conduction frame covers the top end portion of the relay body so as to enable the PCB to be separated from the relay body, and a pair of permanent magnets are arranged on the inner side surface of the magnetic conduction frame to form a magnetic field; the PCB, the magnetic conduction frame and the relay body are all fixedly installed in the shell.

8. The novel relay according to claim 7, characterized in that: still including being used for external terminal and conductor wire, external terminal welding is on the PCB board, the welding of PCB board has voltage acquisition module, and the periphery side cover of static contact bridge is equipped with at least one and has the open-ended card to hold the ring, a tip of conductor wire is connected with voltage acquisition module's input through the PCB board, and voltage acquisition module's output is connected to through the PCB board external terminal, another tip centre gripping of conductor wire is on the static contact bridge held the ring.

9. The novel relay according to claim 8, characterized in that: each auxiliary terminal all is connected with the PCB board through the wire, the output of auxiliary terminal through the PCB board with external terminal connects, external terminal is for having the connector of DB15 needle interface.

10. The novel relay according to claim 9, characterized in that: still include the controller, the controller sets up the side of shell, be equipped with the connecting plate between controller and the shell, first counter sink and second counter sink have been seted up to the connecting plate, be equipped with the first screw with the side spiro union of shell in the first counter sink, be equipped with the second screw with the side spiro union of controller in the second counter sink, the controller also is equipped with the connector that has DB15 needle interface.

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