CN112185766A

CN112185766A - Dual-purpose relay

Info

Publication number: CN112185766A
Application number: CN202011166325.9A
Authority: CN
Inventors: 陈巧珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-01-05

Abstract

The invention is suitable for the technical field of relays, and provides a dual-purpose relay, which comprises a relay shell, connecting terminals, contact mechanisms and a driving mechanism, wherein two groups of the contact mechanisms are installed in the relay shell through contact seats, the connecting terminals corresponding to the contact mechanisms are installed at the bottom of the relay shell, each group of the contact mechanisms comprises a normally closed contact, a movable contact and a normally open contact, a first swing arm and a second swing arm are installed on the driving mechanism, and the first swing arm and the second swing arm are respectively connected with the two movable contacts, so that the dual-purpose relay has the beneficial effects that: have two sets of contact mechanisms in the relay, can insert two sets of control circuit simultaneously, control two sets of control circuit to two sets of contact mechanisms can realize independent power transmission respectively through the effect of switching gear, finally realize the swing of first swing arm or second swing arm, and a ware double-purpose has greatly saved the use cost of relay.

Description

Dual-purpose relay

Technical Field

The invention relates to a relay, in particular to a dual-purpose relay.

Background

A relay is an electric control device, which is an electric appliance that generates a predetermined step change in a controlled variable in an electric output circuit when a change in an input variable meets a predetermined requirement, and is an electronic component widely used in the field of automatic control because it functions as an automatic adjustment, a safety protection, a switching circuit, and the like in the circuit. At present, in a smart grid, a motor type relay is more and more accepted. The motor type relay is a control element which utilizes the rotation of a motor to switch on or off a circuit under a control signal, and a contact can still keep a state before the signal disappears after the control signal disappears.

In the motor type relay in the prior art, one motor is used for controlling the on-off of a group of contact mechanisms, and the cost is relatively high. Based on this, the application provides a dual-purpose relay for controlling the on-off of two sets of contact mechanisms by using one motor.

Disclosure of Invention

The embodiment of the invention aims to provide a dual-purpose relay, aiming at solving the technical problems in the background technology.

The embodiment of the invention is realized in such a way that the dual-purpose relay comprises a relay shell, a connecting terminal, contact mechanisms and a driving mechanism, wherein two groups of the contact mechanisms are installed in the relay shell through a contact seat, the connecting terminal corresponding to the contact mechanisms is installed at the bottom of the relay shell, each group of the contact mechanisms comprises a normally closed contact, a movable contact and a normally open contact, a first swing arm and a second swing arm are installed on the driving mechanism and are respectively connected with the two movable contacts, and the first swing arm and the second swing arm are driven by the driving mechanism to drive the first swing arm or the second swing arm to swing so as to realize the respective control of the two groups of the contact mechanisms.

As a further scheme of the invention: actuating mechanism includes the casing and installs the motor in the casing, be connected with the initiative worm on the output of motor, the initiative worm passes through the mount pad to be installed in the casing, and initiative worm and the meshing transmission of initiative worm wheel go back coaxial coupling to have input gear set on the initiative worm wheel, input gear set is used for driving switching gear and rotates, offer the arc movable groove that is used for supplying switching gear to remove on the casing, the casing is equipped with respectively and switches gear matched with first swing subassembly and second swing subassembly in the stroke endpoint position punishment that corresponds switching gear, and first swing subassembly and second swing subassembly are used for driving first swing arm and second swing arm respectively and rotate.

As a still further scheme of the invention: the first swing assembly comprises an output gear, the output gear is in meshing transmission with the switching gear, a driven worm is further fixed at the shaft end of the output gear, the driven worm is in meshing transmission with a driven worm wheel, a square shaft matched with the first swing arm is further fixed at the position of the rotation center of the driven worm wheel, and the second swing assembly is the same as the first swing assembly in structure.

As a still further scheme of the invention: the input gear set comprises two gears which are meshed with each other, wherein one gear is coaxially fixed with the driving worm gear, and the other gear is in meshed transmission with the switching gear.

As a still further scheme of the invention: the shell is further provided with two reset knobs, and the two reset knobs are respectively connected with the two driven worms.

As a still further scheme of the invention: the first swing arm comprises an integrally formed fixing portion, a position yielding portion and a connecting portion, a square hole matched with the square shaft is formed in the fixing portion, the fixing portion is connected with the connecting portion through the position yielding portion, and a matching hole connected with the movable contact is formed in the connecting portion.

As a still further scheme of the invention: the movable contact is hinged in the contact seat, the bottom of the movable contact is installed on the inner wall of the installation hole through a spring, the installation hole is formed in the contact seat, and the spring is used for enabling the movable contact and the normally closed contact to keep a normally contacted state.

Compared with the prior art, the invention has the beneficial effects that: have two sets of contact mechanisms in the relay, can insert two sets of control circuit simultaneously, control two sets of control circuit to two sets of contact mechanisms can realize independent power transmission respectively through the effect of switching gear, finally realize the swing of first swing arm or second swing arm, and a ware double-purpose has greatly saved the use cost of relay.

Drawings

Fig. 1 is a schematic diagram of an internal structure of a dual-purpose relay.

Fig. 2 is a schematic structural diagram of a driving mechanism in a dual-purpose relay (when controlling a first swing arm).

Fig. 3 is a schematic structural diagram of a driving mechanism in a dual-purpose relay (when controlling the second swing arm).

Fig. 4 is a schematic structural diagram of a dual-purpose relay.

Fig. 5 is a schematic structural diagram of a first swing arm in a dual-purpose relay.

Fig. 6 is a schematic diagram of the connection of the spring in the dual-purpose relay.

In the drawings: the relay comprises a relay shell 1, a relay shell 2, a driving mechanism terminal, a 3-wiring terminal, a 4-contact base, a 5-normally closed contact, a 6-movable contact, a 7-normally open contact, an 8-first swing arm, an 801-fixed part, an 802-relief part, a 803-connecting part, an 804-matching hole, a 9-second swing arm, a 10-driving mechanism, a 1001-shell, a 1002-motor, a 1003-driving worm, a 1004-mounting base, an 1005-movable hole, a 1006-input gear set, an 1007-switching gear, a 1008-arc movable groove, a 1009-driven worm, a 1010-output gear, a 1011-square shaft, a 1012-driven worm wheel, an 11-reset knob, a 12-spring and a 13-mounting hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1 and 4, a structure diagram of a dual-purpose relay provided in an embodiment of the present invention includes a relay housing 1, two sets of contact mechanisms, a contact mechanism and a driving mechanism 10, where two sets of contact mechanisms are installed in the relay housing 1 through a contact base 4, the bottom of the relay housing 1 is installed with the contact terminal 3 corresponding to the contact mechanism, each set of contact mechanisms includes a normally closed contact 5, a movable contact 6 and a normally open contact 7, the driving mechanism 10 is installed with a first swing arm 8 and a second swing arm 9, the first swing arm 8 and the second swing arm 9 are respectively connected with the two movable contacts 6, and the first swing arm 8 and the second swing arm 9 are driven by the driving mechanism 10 to drive the first swing arm 8 or the second swing arm 9 to swing so as to implement respective control of the two sets of contact mechanisms.

In the embodiment of the invention, two groups of contact mechanisms are arranged in the relay, can be simultaneously connected with two groups of control circuits to control the two groups of control circuits, and can drive the first swing arm 8 or the second swing arm 9 to swing by the driving mechanism 10 to realize respective control, so that the use cost of the relay is greatly saved.

As shown in fig. 2 to 3, as a preferred embodiment of the present invention, the driving mechanism 10 includes a housing 1001 and a motor 1002 installed in the housing 1001, the output end of the motor 1002 is connected with a driving worm 1003, the driving worm 1003 is arranged in the shell 1001 through a mounting seat 1004, the driving worm 1003 is in meshed transmission with a driving worm wheel, the driving worm wheel is also coaxially connected with an input gear set 1006, the input gear set 1006 is used for driving the switching gear 1007 to rotate, the housing 1001 is provided with an arc-shaped movable groove 1008 for the switching gear 1007 to move, the housing 1001 is respectively provided with a first swing assembly and a second swing assembly which are matched with the switching gear 1007 at positions corresponding to end points of a stroke of the switching gear 1007, the first swing assembly and the second swing assembly are respectively used for driving the first swing arm 8 and the second swing arm 9 to rotate and lap, of course, the housing 1001 is provided with a movable hole 1005 matched with the first swing arm 8 and the second swing arm 9 at the corresponding position.

In practical application of the embodiment of the present invention, the motor 1002 outputs power to drive the driving worm 1003 to rotate, the driving worm wheel drives the input gear set 1006 to synchronously rotate, and the switching gear 1007 rotates under the meshing action between teeth, where the switching gear 1007 is in transmission relation with the first swing assembly or the second swing assembly, depending on the rotation direction of the motor 1002, as can be seen from fig. 2 and 3, when the output end of the input gear set 1006 rotates in the counterclockwise direction, the switching gear 1007 is located at the right end of the arc-shaped movable slot 1008, that is, power transmission to the first swing assembly is realized, and when the output end of the input gear set 1006 rotates in the clockwise direction, the switching gear 1007 swings to the left end of the arc-shaped movable slot 1008 under the action of the teeth, and power transmission to the second swing assembly is realized.

Taking the output end of the input gear set 1006 as an example to rotate in the counterclockwise direction, the switching gear 1007 drives the first swing assembly to rotate so as to realize the swing of the first swing arm 8, so that the movable contact 6 moves to be separated from the normally closed contact 5 and contact with the normally open contact 7, thereby realizing the cut-off of the circuit.

Preferably, the input gear set 1006 includes two gears engaged with each other, one of the gears is coaxially fixed with the driving worm gear, and the other gear is in mesh transmission with the switching gear 1007.

As shown in fig. 2 to 3, as another preferred embodiment of the present invention, the first swing assembly includes an output gear 1010, the output gear 1010 is in meshing transmission with the switching gear 1007, a driven worm 1009 is further fixed at an axial end of the output gear 1010, the driven worm 1009 is in meshing transmission with a driven worm gear 1012, a square shaft 1011 engaged with the first swing arm 8 is further fixed at a rotation center position of the driven worm gear 1012, and the second swing assembly has the same structure as the first swing assembly.

In the embodiment of the present invention, when the switching gear 1007 rotates, the output gear 1010 is driven to rotate, the driven worm 1009 rotates synchronously, and further the driven worm gear 1012 and the square shaft 1011 are driven to rotate, so as to swing the first swing arm 8, in this embodiment, the driven worm 1009 and the driven worm gear 1012 are arranged to ensure that the first swing arm 8 still ensures the current state when the motor 1002 rotates in the reverse direction, thereby avoiding an accident.

As shown in fig. 1, as another preferred embodiment of the present invention, two reset knobs 11 are further mounted on the housing 1001, and the two reset knobs 11 are respectively connected to two driven worms 1009.

In the relay in the embodiment of the present invention, after the movable contact 6 and the normally open contact 7 are in contact to cut off the circuit, the reset is performed manually, and when the reset is performed, the corresponding reset knob 11 is rotated to drive the corresponding driven worm 1009 to rotate, which is very convenient.

As shown in fig. 5, as another preferred embodiment of the present invention, the first swing arm 8 includes a fixing portion 801, a relief portion 802, and a connecting portion 803, which are integrally formed, the fixing portion 801 is provided with a square hole matching with the square shaft 1011, the fixing portion 801 is connected to the connecting portion 803 through the relief portion 802, and the connecting portion 803 is provided with a matching hole 804 connecting with the movable contact 6.

In the embodiment of the present invention, the square hole is matched with the square shaft 1011, and in practical applications, the square hole and the square shaft 1011 may also be configured in other forms, such as a triangle, a pentagon, and a hexagon, which is not specifically limited herein. The purpose of the abdicating section 802 is to abdicate the normally closed contact 5 and prevent the first swing arm 8 from interfering with the normally closed contact 5 when swinging.

As another preferred embodiment of the present invention, as shown in fig. 6, the movable contact 6 is hinged in the contact base 4, the bottom of the movable contact 6 is mounted on the inner wall of a mounting hole 13 by a spring 12, the mounting hole 13 is provided in the contact base 4, and the spring 12 is used for keeping the movable contact 6 in a normally-closed contact state with the normally-closed contact 5.

That is, in the initial state, under the action of the spring 12, the movable contact 6 will deflect to one side and maintain the contact state with the normally closed contact 5, and after the motor 1002 receives the current pulse and starts to rotate, the movable contact 6 will contact with the normally open contact 7 under the action of the first swing arm 8 or the second swing arm 9.

With the above embodiments, it is easy to understand that the working principle of the present invention is: under the normal state, the movable contact 6 will deflect to one side and keep the contact state with the normally closed contact 5 under the action of the spring 12, after receiving the signal of the control circuit, the motor 1002 outputs power to drive the driving worm 1003 to rotate, the driving worm gear drives the input gear set 1006 to rotate synchronously, under the meshing action between teeth, the switching gear 1007 rotates, here, the switching gear 1007 and the first swinging component or the second swinging component generate transmission relationship, depending on the rotation direction of the motor 1002, taking the example that the output end of the input gear set 1006 rotates in the counterclockwise direction as an example, the switching gear 1007 drives the output gear 1010 to rotate, the driven worm 1009 will rotate synchronously, and further drive the driven worm 1012 and the square shaft 1011 to rotate, so as to realize the swinging of the first swing arm 8, the driven worm 1009 and the driven worm gear are set to ensure that when the motor 1002 rotates reversely, the first swing arm 8 still ensures the current state, the occurrence of an accident is avoided, and at this time, the circuit connected to the contact mechanism is in a disconnected state and is kept in a disconnected state, and the corresponding reset knob 11 is rotated to drive the corresponding driven worm 1009 to rotate, so that the reset is realized.

The embodiment of the invention discloses a dual-purpose relay, two groups of contact mechanisms are arranged in the relay, two groups of control circuits can be simultaneously connected to control the two groups of control circuits, the two groups of contact mechanisms can realize independent power transmission through the action of a switching gear 1007, and finally the swinging of a first swing arm 8 or a second swing arm 9 is realized.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A dual-purpose relay comprises a relay shell (1), a wiring terminal (3), a contact mechanism and a driving mechanism (10), and is characterized in that two groups of contact mechanisms are installed in the relay shell (1) through a contact seat (4), the wiring terminal (3) corresponding to the contact mechanism is installed at the bottom of the relay shell (1), each group of contact mechanisms comprises a normally closed contact (5), a movable contact (6) and a normally open contact (7), a first swing arm (8) and a second swing arm (9) are installed on the driving mechanism (10), the first swing arm (8) and the second swing arm (9) are respectively connected with the two movable contacts (6), the first swing arm (8) and the second swing arm (9) are driven by the driving mechanism (10) to drive the first swing arm (8) or the second swing arm (9) to swing, so as to realize the respective control of the two groups of contact mechanisms.

2. The dual-purpose relay is characterized in that the driving mechanism (10) comprises a housing (1001) and a motor (1002) installed in the housing (1001), the output end of the motor (1002) is connected with a driving worm (1003), the driving worm (1003) is installed in the housing (1001) through a mounting seat (1004), the driving worm (1003) is in meshing transmission with the driving worm gear, the driving worm gear is also coaxially connected with an input gear set (1006), the input gear set (1006) is used for driving a switching gear (1007) to rotate, an arc-shaped movable groove (1008) used for moving the switching gear (1007) is formed in the housing (1001), a first swinging assembly and a second swinging assembly which are matched with the switching gear (1007) are respectively arranged at positions of stroke end points of the switching gear (1007) of the housing (1001), and the first swinging assembly and the second swinging assembly are respectively used for driving a first swinging arm (8) and a second swinging arm (9) And (4) rotating.

3. The dual-purpose relay is characterized in that the first swinging assembly comprises an output gear (1010), the output gear (1010) is in meshing transmission with the switching gear (1007), a driven worm (1009) is further fixed to the shaft end of the output gear (1010), the driven worm (1009) is in meshing transmission with a driven worm gear (1012), a square shaft (1011) matched with the first swinging arm (8) is further fixed to the rotation center of the driven worm gear (1012), and the second swinging assembly is identical to the first swinging assembly in structure.

4. The dual-purpose relay according to claim 2, wherein the input gear set (1006) comprises two gears meshed with each other, one of the gears is coaxially fixed with the driving worm gear, and the other gear is meshed with the switching gear (1007) for transmission.

5. The dual-purpose relay according to claim 3, wherein two reset knobs (11) are further mounted on the housing (1001), and the two reset knobs (11) are respectively connected with the two driven worms (1009).

6. The dual-purpose relay is characterized in that the first swing arm (8) comprises a fixing portion (801), a yielding portion (802) and a connecting portion (803), the fixing portion (801) is provided with a square hole matched with the square shaft (1011), the fixing portion (801) is connected with the connecting portion (803) through the yielding portion (802), and the connecting portion (803) is provided with a matching hole (804) connected with the movable contact (6).

7. The dual-purpose relay according to claim 1, wherein the movable contact (6) is hinged in the contact base (4), the bottom of the movable contact (6) is mounted on the inner wall of a mounting hole (13) through a spring (12), the mounting hole (13) is arranged in the contact base (4), and the spring (12) is used for keeping the movable contact (6) and the normally closed contact (5) in a normally contacted state.