阅读说明：本技术 一种脉冲式继电器 (Pulse type relay ) 是由 张白 毛建东 于 2020-05-25 设计创作，主要内容包括：本发明涉及一种脉冲式继电器,包括电磁铁、衔铁、静触点、状态保持机构、动触点以及复位弹簧,衔铁与所述状态保持机构相连,电磁铁用于在接收到脉冲电信号时产生磁力,并通过磁力驱动衔铁动作,在每个脉冲电信号的持续时间内,状态保持机构在衔铁的驱动下动作一次,以交替切换动触点的位置,位置包括位置一和位置二,当动触点位于位置一时,动触点与所述静触点处于相互分离状态,当动触点位于位置二时,动触点与所述静触点处于接触状态；本继电器,可以利用脉冲电信号调节动触点的位置和状态,并使得动触点保持调节后的状态,直到下一个脉冲电信号,在这个过程中,无需持续通电,不仅节省电能,而且可以有效避免因持续通电而引起的发热问题。(The invention relates to a pulse type relay, which comprises an electromagnet, an armature, a fixed contact, a state retaining mechanism, a movable contact and a reset spring, wherein the armature is connected with the state retaining mechanism, the electromagnet is used for generating magnetic force when receiving pulse electric signals and driving the armature to act through the magnetic force, the state retaining mechanism acts once under the driving of the armature within the duration time of each pulse electric signal so as to alternately switch the position of the movable contact, the position comprises a first position and a second position, when the movable contact is positioned at the first position, the movable contact and the fixed contact are in a mutually separated state, and when the movable contact is positioned at the second position, the movable contact and the fixed contact are in a contact state; this relay can utilize pulse electrical signal to adjust the position and the state of movable contact to make the movable contact keep the state after the regulation, until next pulse electrical signal, at this in-process, need not to last circular telegram, not only save the electric energy, can effectively avoid the problem of generating heat because of lasting circular telegram arouses moreover.)

1. A pulse relay is characterized by comprising an electromagnet, an armature, a fixed contact, a state holding mechanism, a movable contact and a return spring, wherein,

the armature is connected to the state retaining mechanism,

the electromagnet is used for generating magnetic force when receiving the pulse electric signal and driving the armature to act through the magnetic force,

the state keeping mechanism is driven by the armature to act once within the duration of each pulse electric signal so as to alternately switch the position of the movable contact, wherein the position comprises a first position and a second position, when the movable contact is positioned at the first position, the movable contact and the fixed contact are in a mutually separated state, and when the movable contact is positioned at the second position, the movable contact and the fixed contact are in a contact state,

the return spring is used for driving the armature to restore to the initial position when the electromagnet is powered off.

2. The pulsed relay according to claim 1, further comprising a housing, wherein the electromagnet, the armature, the stationary contact, the state holding mechanism, and the movable contact are respectively disposed inside the housing; the shell is also provided with two working wiring ends which are respectively electrically communicated with the movable contact and the fixed contact.

3. The pulse relay according to claim 2, wherein the state retaining mechanism comprises a sliding portion, a position restricting sleeve, and a pushing portion, wherein,

the sliding part comprises a sliding rod and a plurality of sliding claws arranged at one end of the sliding rod and arranged along the circumferential direction of the sliding rod, the movable contact is arranged at the other end of the sliding rod or at the position corresponding to the other end of the sliding rod, one end of each sliding claw far away from the movable contact is a first guide surface which is obliquely arranged,

the limiting sleeve is fixed on the shell, the limiting sleeve is of a cylindrical structure, a plurality of limiting parts used for limiting the sliding claws are constructed at one end of the limiting sleeve, the limiting parts are respectively distributed along the circumferential direction of the limiting sleeve and are connected end to end, each limiting part comprises a first limiting position and a second limiting position, the depths of the first limiting position and the second limiting position along the length direction of the limiting sleeve are different, when the sliding claws are clamped at the first limiting position, the movable contact is positioned at a first position, when the sliding claws are clamped at the second limiting position, the movable contact is positioned at a second position,

the pushing part comprises a push rod with a cylindrical structure, one end of the push rod is obliquely provided with a plurality of second guide surfaces, the second guide surfaces are matched with the first guide surfaces, the second guide surfaces are distributed along the circumferential direction of the push rod respectively and are connected end to end, the armature is fixed to the pushing part, and when the sliding claw is clamped at the first constraint position or the second constraint position, the first guide surfaces are only contacted with parts of the second guide surfaces.

4. The pulse type relay according to claim 3, wherein the first restriction position comprises a first slot provided on the position limiting sleeve and a guide surface communicated with the first slot,

the second constraint position comprises a second clamping groove arranged on the limiting sleeve, the bottom surface of the second clamping groove is a third guide surface which is obliquely arranged, the third guide surface is connected with the first clamping groove and is matched with the first guide surface,

the guide surface of one restraint part is connected with the second clamping groove of the adjacent restraint part, and the depth of the first clamping groove is larger than that of the second clamping groove.

5. The pulse type relay according to claim 3, wherein the return spring is sleeved on the slide rod, one end of the return spring is fixed to the housing, and the other end of the return spring is in contact with the slide rod and is used for driving the slide claw to be clamped into the restraint part;

or, still include return spring, return spring set up in the slide bar, return spring's one end is fixed in the casing, the other end with the slide bar contacts for drive sliding jaw card is gone into the portion of retraining, return spring set is located the promotion portion is used for providing the elasticity of following keeping away from the stop collar direction for the push rod.

6. The pulse type relay according to claim 3, wherein the outer side of the push rod is provided with a plurality of guide grooves or guide keys, the inner wall of the position-limiting sleeve is provided with guide keys matched with the guide grooves or guide grooves matched with the guide keys,

or the pushing part further comprises an extension rod and a guide part arranged on the shell, the extension rod is a rod with a non-circular cross section, the guide part is matched with the extension rod, the extension rod is arranged on the push rod and connected with the guide part to form a sliding pair, the armature is fixed on the extension rod, and the guide part is a guide cylinder or a guide groove.

7. The pulse type relay according to any one of claims 3 to 6, wherein the movable contact is provided to the slide bar and moves in synchronization with the slide bar to change a position of the movable contact;

or the movable contact is arranged in the shell, and the sliding rod changes the position of the movable contact by pushing the movable contact to deform or pushing the movable contact to move.

8. The pulse type relay according to claim 7, wherein said sliding part further comprises a connecting member made of an insulating material, one end of said connecting member is movably connected to said sliding rod and is rotatable with respect to the sliding rod, and the other end is connected to said movable contact, and said movable contact is connected to said working terminal through a conductive wire and/or a conductive sheet.

9. The pulse type relay according to claim 7, wherein the movable contact is an elastic conductive sheet fixed to a housing, and the movable contact is disposed at a position corresponding to an end of the slide bar, the slide bar deforms by pushing the movable contact so that the movable contact contacts the stationary contact, and the movable contact is connected to the working terminal through a conductive wire and/or a conductive sheet;

or the movable contact is movably connected with the shell, forms a moving pair with the shell and is positioned at a position separated from the fixed contact under the action of a separating spring, the movable contact is arranged at a position corresponding to the end part of the sliding rod, the sliding rod enables the movable contact to contact the fixed contact by pushing the movable contact to move, and the movable contact is connected with the working wiring end through a conducting wire and/or a conducting strip.

10. The pulsed relay according to claim 7, wherein the housing is further provided with two control terminals in electrical communication with two ends of a coil in the electromagnet, respectively;

or a power supply and a control switch are further arranged in the shell, and the power supply, the control switch and the coil are connected in series to form a closed loop.

Technical Field

The invention relates to the technical field of relay equipment, in particular to a pulse type relay.

Background

A relay is an electric appliance that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount meets a predetermined requirement. The automatic switch has an interactive relation between a control system and a controlled system, is usually applied to an automatic control circuit, is an automatic switch which uses a small current to control a large current to operate, and plays the roles of automatic adjustment, safety protection, circuit conversion and the like in the circuit.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a pulse type relay which is simple and compact in structure and convenient to manufacture, can adjust the position and the state of a movable contact by using a pulse electric signal, enables the movable contact to keep the adjusted state until the next pulse electric signal, does not need to be electrified continuously in the process, not only saves electric energy, but also can effectively avoid the heating problem caused by continuous electrification.

The technical scheme adopted by the invention is as follows:

the invention provides a pulse type relay, which aims to solve the problem that the existing relay needs to be continuously electrified when in use and comprises an electromagnet, an armature, a fixed contact, a state holding mechanism, a movable contact and a return spring, wherein,

the armature is connected to the state retaining mechanism,

the electromagnet is used for generating magnetic force when receiving the pulse electric signal and driving the armature to act through the magnetic force,

and the state keeping mechanism is driven by the armature to act once within the duration of each pulse electric signal so as to alternately switch the position of the movable contact, wherein the position comprises a first position and a second position, when the movable contact is positioned at the first position, the movable contact and the fixed contact are in a mutually separated state, and when the movable contact is positioned at the second position, the movable contact and the fixed contact are in a contact state. In the scheme, the movable contact and the fixed contact are respectively communicated with a working circuit (usually a high-voltage working circuit), when the movable contact and the fixed contact are in a separated state, the working circuit is in a disconnected state, and when the movable contact and the fixed contact are in a contact state, the working circuit is in a communicated state (namely a normal operation state); the aim of controlling the state of the working circuit (namely realizing the effect of switching) can be achieved by controlling the relative position relation between the movable contact and the fixed contact, therefore, in the scheme, the state maintaining mechanism is provided with power under the action of a pulse electric signal through the matching of the electromagnet and the armature so as to alternately switch between the first position and the second position and maintain the position of the movable contact, when the movable contact is positioned at the first position, the movable contact is separated from the fixed contact, at the moment, the working circuit is in a disconnection state, and when the movable contact is positioned at the second position, the movable contact and the fixed contact are always in a contact state so that the working circuit can normally operate.

In order to make the armature return to the initial position after each pulse electric signal, the electromagnetic switch further comprises a return spring, when the electromagnet is electrified, the armature is driven to move in a positive direction in a set direction, and when the electromagnet is powered off, the return spring is used for driving the armature to move in a reverse direction opposite to the direction. So that the armature can automatically return to the original position.

Preferably, the electromagnet comprises an iron core and a coil wound on the iron core, and the armature is arranged at one end of the iron core.

In order to facilitate insulation and packaging, the electromagnetic switch further comprises a shell, and the electromagnet, the armature, the fixed contact, the state maintaining mechanism, the movable contact and the return spring are respectively arranged in the shell.

In order to facilitate wiring in actual use, the housing is further provided with two working terminals which are respectively electrically communicated with the movable contact and the fixed contact. When the relay is used, the two working terminals can be conveniently connected with the two terminals of the working circuit so as to form a loop.

Preferably, the state maintaining mechanism comprises a sliding part, a limiting sleeve and a pushing part, wherein,

the sliding part comprises a sliding rod and a plurality of sliding claws arranged at one end of the sliding rod and arranged along the circumferential direction of the sliding rod, the movable contact is arranged at the other end of the sliding rod or at the position corresponding to the other end of the sliding rod, one end of each sliding claw far away from the movable contact is a first guide surface which is obliquely arranged,

the limiting sleeve is fixed on the shell, the limiting sleeve is of a cylindrical structure, a plurality of limiting parts used for limiting the sliding claws are constructed at one end of the limiting sleeve, the limiting parts are respectively distributed along the circumferential direction of the limiting sleeve and are connected end to end, each limiting part comprises a first limiting position and a second limiting position, the depths of the first limiting position and the second limiting position along the length direction of the limiting sleeve are different, when the sliding claws are clamped at the first limiting position, the movable contact is positioned at a first position, when the sliding claws are clamped at the second limiting position, the movable contact is positioned at a second position,

the pushing part comprises a push rod with a cylindrical structure, one end of the push rod is obliquely provided with a plurality of second guide surfaces, the second guide surfaces are matched with the first guide surfaces, the second guide surfaces are distributed along the circumferential direction of the push rod respectively and are connected end to end, the armature is fixed to the pushing part, and when the sliding claw is clamped at the first constraint position or the second constraint position, the first guide surfaces are only contacted with parts of the second guide surfaces. In the scheme, initially, the sliding rod is clamped at the first constraint position or the second constraint position through the sliding claw; when the electromagnet is electrified, the push rod drives the slide rod to move relative to the limiting sleeve under the drive of the electromagnet, the first guide surface is only contacted with part of the second guide surface before the slide claw is not separated from the first limiting position or the second limiting position, after the push rod continues to move and pushes the slide claw to be separated from the first limiting position or the second limiting position, namely the slide claw exceeds a critical position, because the first guide surface and the second guide surface are obliquely arranged, a component force along the circumferential direction is inevitably existed between the first guide surface and the second guide surface, under the action of the component force, the slide rod can rotate relative to the limiting sleeve while moving relative to the limiting sleeve until the first guide surface is completely contacted with the second guide surface, at the moment, the position of the slide claw is rotated to a position corresponding to the next second limiting position or the first limiting position, when the electromagnet is powered off, the slide claw automatically returns under the drive of the slide rod and can be just clamped into the adjacent second limiting position or the first limiting position, therefore, the aim of switching the position of the movable contact point is fulfilled, and before the power is not electrified again, the position of the sliding claw clamped into the second constraint position or the first constraint position cannot be changed, namely the positions and the shapes of the sliding rod and the movable contact point cannot be changed, so that the state of the relay can be effectively maintained, and continuous power supply is not needed.

In order to restrain and maintain the position of the movable contact, preferably, the first restraining position includes a first clamping groove arranged on the limiting sleeve and a guide surface communicated with the first clamping groove,

the second constraint position comprises a second clamping groove arranged on the limiting sleeve, the bottom surface of the second clamping groove is a third guide surface which is obliquely arranged, the third guide surface is connected with the first clamping groove and is matched with the first guide surface,

the guide surface of one restraint part is connected with the second clamping groove of the adjacent restraint part, and the depth of the first clamping groove is larger than that of the second clamping groove. By adopting the structural design, the position of the sliding claw can be switched between the first clamping groove and the second clamping groove along the circumferential direction, and because the depth of the first clamping groove is greater than that of the second clamping groove, when the sliding claw is clamped in the first clamping groove, the movable contact is separated from the fixed contact, and when the sliding claw is clamped in the second clamping groove, the movable contact is contacted with the fixed contact.

In order to enable the sliding rod to return automatically, in one scheme, the reset spring sleeve is arranged on the sliding rod, one end of the reset spring is fixed on the shell, and the other end of the reset spring is in contact with the sliding rod and used for driving the sliding claw to be clamped into the constraint part.

In another kind of scheme, still include return spring, return spring set up in the slide bar, return spring's one end is fixed in the casing, the other end with the slide bar contacts for drive sliding jaw card is gone into the portion of constraint, return spring set is located the promotion portion is used for providing the edge for the push rod and keeps away from the elasticity of stop collar direction. The automatic return function of the slide rod can be realized by utilizing the return spring, so that the slide claw can be clamped in the constraint part and can be kept stable, the movable contact can be kept stable, and the automatic return function of the slide rod can also be realized by utilizing the additionally arranged return spring.

In order to prevent the push rod from rotating relative to the limit sleeve, furthermore, a plurality of guide grooves or guide keys are arranged on the outer side of the push rod, the inner wall of the limit sleeve is provided with guide keys matched with the guide grooves or guide grooves matched with the guide keys,

or the pushing part further comprises an extension rod and a guide part arranged on the shell, the extension rod is a rod with a non-circular cross section, the guide part is matched with the extension rod, the extension rod is arranged on the push rod and connected with the guide part to form a sliding pair, the armature is fixed on the extension rod, and the guide part is a guide cylinder or a guide groove.

Preferably, the inner diameter of the limiting sleeve is larger than the outer diameter of the sliding rod and smaller than the sum of the outer diameter of the sliding rod and the thickness of the sliding claw, and the outer diameter of the push rod is smaller than the inner diameter of the limiting sleeve. So that the push rod can pass through the limiting sleeve to push the sliding rod to move so as to switch the position of the movable contact.

In a second aspect of the present invention, a problem that a wire of the movable contact is twisted due to rotation of the slide bar is solved, wherein the sliding portion further includes a connecting member made of an insulating material, one end of the connecting member is movably connected to the slide bar and can rotate relative to the slide bar, the other end of the connecting member is connected to the movable contact, and the movable contact is connected to the working terminal through a wire and/or a conductive sheet. Through setting up the connecting piece, both can realize being connected of sliding part and movable contact for the movable contact can remove under the drive of sliding part, so that the relative position relation between the regulation and the stationary contact, can realize the separation of motion again, makes the movable contact can not rotate along with the rotation of slide bar, thereby effectively solves the winding problem of wire.

The movable contact is not arranged on the sliding rod, the sliding rod changes the position of the movable contact by pushing the movable contact to deform or pushing the movable contact to move, at the moment, the movable contact can be an elastic conducting strip fixed on the shell, the movable contact is arranged at a position corresponding to the end part of the sliding rod, the sliding rod enables the movable contact to contact the fixed contact by pushing the movable contact to deform, and the movable contact is connected with the working wiring end through a conducting wire and/or a conducting strip;

or the movable contact is movably connected with the shell, forms a moving pair with the shell and is positioned at a position separated from the fixed contact under the action of a separating spring, the movable contact is arranged at a position corresponding to the end part of the sliding rod, the sliding rod enables the movable contact to contact the fixed contact by pushing the movable contact to move, and the movable contact is connected with the working wiring end through a conducting wire and/or a conducting strip. In this way, the problem of wire winding can be effectively solved.

For convenience of use, the shell is further provided with two control terminals which are respectively electrically communicated with two ends of the coil;

or a power supply and a control switch are further arranged in the shell, and the power supply, the control switch and the coil are connected in series to form a closed loop. In practical use, the two control wiring terminals can be conveniently connected with a transmitting device of a pulse electric signal so as to form a closed loop and realize automatic control of the relay; after the power supply is arranged in the relay, the switch can be manually opened and closed in practical use, and a pulse signal is formed in the loop within the opening and closing time of the switch so as to drive the movable contact in the relay to deform or change the position of the movable contact once.

In order to solve the problem that the yes/no action of an electromagnet and an armature in the relay cannot be judged from the outside of a shell, the pushing part is further provided with a state detection contact, the shell is provided with a fixed contact, the state detection contact and the fixed contact are respectively connected with two detection terminals arranged on the shell or respectively connected with the power supply to form a detection loop, and an indicator lamp is arranged on the detection loop; when the sliding rod moves to the position farthest away from the limiting sleeve under the pushing of the push rod, the state detection contact is contacted with the fixed contact. Therefore, the problem that whether the internal electromagnet and the armature act (or attract) or not can not be judged from the outside of the shell can be effectively solved.

Compared with the prior art, the pulse type relay provided by the invention has the following beneficial effects:

1. this pulsed relay, simple structure is compact, the manufacturing of being convenient for, can utilize pulse electrical signal to adjust the position and the state of movable contact to make the movable contact keep the state after the regulation, until next pulse electrical signal, at this in-process, need not to last circular telegram, not only save the electric energy, can effectively avoid the problem of generating heat because of lasting circular telegram and arousing moreover.

2. This pulsed relay can effectively solve the slide bar and rotate the wire that leads to linking to each other with the movable contact and take place winding problem.

3. The pulse type relay can effectively solve the problem that the yes/no action of the inner electromagnet and the armature can not be judged from the outside of the shell.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a sliding portion in a pulse relay provided in embodiment 1 of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a schematic structural diagram of a position limiting sleeve in the pulse relay provided in embodiment 1 of the present invention.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a schematic partial structural diagram of a push rod in a pulse type relay provided in embodiment 1 of the present invention.

Fig. 6 is a diagram illustrating one of states of a state maintaining mechanism in a pulse type relay according to embodiment 1 of the present invention, in which a sliding pawl is caught in the first catching groove.

Fig. 7 shows a second state of the state maintaining mechanism in the pulse type relay according to embodiment 1 of the present invention, in which the push rod pushes the sliding pawl out of the first slot and exceeds the zero point.

Fig. 8 is a diagram illustrating a third state of the state maintaining mechanism in the pulse type relay according to embodiment 1 of the present invention, in which the sliding rod automatically rotates a certain angle beyond a zero-point, so that the sliding pawl corresponds to the second slot.

Fig. 9 shows a state of the state maintaining mechanism in a pulse type relay according to embodiment 1 of the present invention, in which the first guide surface of the slide claw is in contact with the third guide surface of the second restriction position.

Fig. 10 is a diagram illustrating a fifth state of the state maintaining mechanism in the pulse type relay according to embodiment 1 of the present invention, in which the sliding rod automatically rotates by a certain angle, so that the sliding pawl is completely engaged in the second engaging groove.

Fig. 11 shows a state of the state maintaining mechanism in a pulse type relay according to embodiment 1 of the present invention, in which the sliding pawl is caught in the second catching groove, and at this time, the push rod is pushing the sliding pawl out of the second catching groove.

Fig. 12 is a seventh view of the state maintaining mechanism in the pulse type relay according to embodiment 1 of the present invention, in which the push rod completely pushes the sliding pawl out of the second slot and exceeds a zero point, and the sliding rod automatically rotates by a certain angle, so that the sliding pawl corresponds to the guide surface of the first constraint position.

Fig. 13 shows an eighth state of the state maintaining mechanism in the pulse type relay according to embodiment 1 of the present invention, in which the electromagnet is powered off, and the sliding claw is automatically locked into the first locking groove, so as to return to the state shown in fig. 6.

Fig. 14 is a schematic view of a pulse relay according to embodiment 1 of the present invention, in which a sliding pawl is stuck in a first restraint position.

Fig. 15 is a schematic view of a pulse relay according to embodiment 1 of the present invention, in which a sliding pawl is stuck in a second restraint position.

Fig. 16 is a schematic view of a pulse relay according to embodiment 2 of the present invention, in which a sliding pawl is stuck in a first restraint position.

Fig. 17 is a schematic view of a pulse relay according to embodiment 2 of the present invention, in which a sliding pawl is stuck in a second restraint position.

Fig. 18 is a schematic structural diagram of a pulse type relay provided in embodiment 3 of the present invention.

Fig. 19 is a schematic structural diagram of a pulse type relay provided in embodiment 4 of the present invention.

Fig. 20 is a partial structural schematic diagram of a pulse type relay provided in embodiment 5 of the present invention.

Description of the drawings

A housing 101, a core 102, a coil 103, an armature 104, a fixed contact 105, a movable contact 106, a return spring 107, a working terminal 108, a control terminal 109, a connecting member 110, a,

The state holding mechanism 200, the sliding portion 201, the slide rod 202, the slide pawl 203, the first guide surface 204, the return spring 205, the stopper 206, the restraint portion 207, the first restraint position 208, the second restraint position 209, the first notch 210, the guide surface 211, the second notch 212, the third guide surface 213, the pushing portion 214, the push rod 215, the second guide surface 216, the guide member 217, the extension rod 218, the guide portion 219, the guide member 219, and the like,

A power supply 301, a control switch 302,

State detection contact 401, fixed contact 402, detection terminal 403.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.