CN215578369U - Normally open and normally closed two-combined relay module - Google Patents

Abstract

The utility model provides a normally-open and normally-closed combined relay module which comprises a bottom cover, a PCB (printed circuit board) and a shell, wherein the bottom cover is connected with the shell, the PCB is arranged between the bottom cover and the shell, two high-voltage direct-current relays are arranged on the surface of the shell, auxiliary contacts are arranged on the high-voltage direct-current relays, and the two high-voltage direct-current relays comprise normally-closed high-voltage direct-current relays and normally-open high-voltage direct-current relays; the normally closed high-voltage direct-current relay and the normally open high-voltage direct-current relay are used in a combined mode, so that the technical problem that when one relay is used for controlling the on and off states of two lines, contacts are concentrated in one cavity, and the on and off states of the lines are achieved by the movement of one movable contact, the two contacts are easy to interfere with each other when the lines are switched, and poor contact is caused is solved.

Description

Normally open and normally closed two-combined relay module

Technical Field

The utility model relates to the field of new energy automobiles, in particular to a normally open and normally closed combined relay module.

Background

The high-voltage direct-current relay has been applied to the new energy vehicle market for many years, and although the high-voltage direct-current relay can basically meet the requirements of customers on performance, the requirements of the customers are continuously improved at present.

With the continuous promotion of new energy product standards, the on-off of the circuit of the conventional normally open and normally closed contact type relay is realized by the clapping type action of a movable contact spring, one group has three contacts, the middle is a movable contact, and the upper and lower static contacts are respectively arranged. When the coil is not electrified, the movable contact and one of the fixed contacts are disconnected and the other fixed contact is closed, and when the coil is electrified, the movable contact moves to close the disconnected contact and open the closed contact, so that the aim of conversion is fulfilled. Because the contacts are concentrated in one cavity when the on-off state of the two circuits is controlled by using one relay, and the on-off state of the circuits is realized by the movement of one movable contact, when the circuits are switched, the two static contacts are easy to interfere with each other, so that poor contact is caused; moreover, the relay is only suitable for low-voltage low current and can not be used in the application occasions of high-voltage high current.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a normally open and normally closed combined relay module, which aims to solve the technical problems that when a relay is used for controlling the on and off states of two paths of circuits, contacts are concentrated in a cavity, and the on and off states of the circuits are realized by the movement of a movable contact, so that two static contacts are easy to interfere with each other when the circuits are switched, and poor contact is caused.

In order to achieve the purpose, the utility model provides the following technical scheme that the high-voltage direct current relay comprises a bottom cover, a PCB and a shell, wherein the bottom cover is connected with the shell, the PCB is arranged between the bottom cover and the shell, two high-voltage direct current relays are arranged on the surface of the shell, auxiliary contacts are arranged on the high-voltage direct current relays, and the two high-voltage direct current relays comprise a normally closed high-voltage direct current relay and a normally open high-voltage direct current relay.

Preferably, casing upper end left and right sides symmetry is equipped with the spacing groove, the rear end left and right sides symmetry of spacing groove is equipped with the socket, the front end left and right sides symmetry of spacing groove is equipped with protruding eaves, the lower extreme of protruding eaves is equipped with the draw-in groove, spacing groove and draw-in groove intercommunication, be equipped with the baffle between the two draw-in grooves that are close to each other, the casing is in the front end left and right sides symmetry that corresponds the department of spacing groove is equipped with the bayonet socket.

Preferably, PCB board upper end left and right sides symmetry is equipped with two sets of slots, the slot with the position one-to-one of socket, two sets of slots include two normally closed relay slots and two normally open relay slots.

Preferably, normally closed high voltage direct current relay is connected with normally closed relay control end connector electricity, normally open high voltage direct current relay is connected with normally open relay control end connector electricity, normally open relay control end connector passes through the socket with normally open relay slot connection, normally closed relay control end connector passes through the socket with normally closed relay slot connection.

Preferably, the middle part of the high-voltage direct-current relay is provided with a first clamping block, the lower end of the high-voltage direct-current relay is provided with a second clamping block, a sliding groove is formed between the first clamping block and the second clamping block, the sliding groove is in sliding connection with the convex eaves, the second clamping block is in sliding connection with the clamping groove, and the clamping opening is used for fixing the front end of the high-voltage direct-current relay after the high-voltage direct-current relay is completely matched with the clamping groove.

Preferably, one end of the normally closed high-voltage direct-current relay and one end of the normally open high-voltage direct-current relay are connected with a public end, one end of the normally closed high-voltage direct-current relay, which is far away from the public end, is connected with a first line, and one end of the normally open high-voltage direct-current relay, which is far away from the public end, is connected with a second line.

Preferably, high-voltage direct current relay includes the relay shell, the inside first cavity that is equipped with of relay shell, wiring subassembly is established to the left and right sides symmetry of relay shell upper end, wiring subassembly includes:

the left side and the right side of the lower end of the connecting terminal, which are far away from the center of the connecting terminal, are symmetrically provided with a first connecting groove, the left side and the right side of the lower end of the connecting terminal, which are close to the center of the connecting terminal, are symmetrically provided with a second connecting groove, the first connecting groove is connected with the upper end of the first condom, and the second connecting groove is connected with the upper end of the second condom;

the left side and the right side of the upper end of the first contact plate, which are far away from the center of the first contact plate, are symmetrically provided with a third connecting groove, the left side and the right side of the upper end of the first contact plate, which are close to the center of the first contact plate, are symmetrically provided with a fourth connecting groove, the third connecting groove is connected with the lower end of the first condom, and the fourth connecting groove is connected with the lower end of the second condom;

the supporting block is fixedly arranged between the first condom and the second condom, the upper end of the supporting block is fixedly connected with a first connecting block, the first connecting block is symmetrically arranged on the left side and the right side of the lower end of the wiring terminal, the lower end of the supporting block is fixedly connected with a second connecting block, and the second connecting block is symmetrically arranged on the left side and the right side of the upper end of the first contact plate.

Preferably, the relay case is further connected with a conduction assembly, and the conduction assembly includes:

the fixed shell is fixedly arranged at the lower end of the relay shell, a second cavity is formed in the fixed shell, a movable port is formed in the lower end of the fixed shell, and the movable port is communicated with the second cavity;

the control block enters the second cavity through the movable port, the lower part of the control block is in sliding connection with the movable port, the diameter of the middle part of the control block is larger than that of the movable port, a first spring is fixedly arranged at the upper end of the middle part of the control block, the first spring is sleeved at the upper part of the control block, and a first magnetic block is fixedly arranged at the upper end of the upper part of the control block;

the moving block is arranged between the first cavity and the second cavity, penetrates through the lower end of the relay shell and is in sliding connection with the relay shell, a groove is formed in the lower end of the moving block, the groove is matched with the upper portion of the control block, a second magnetic block is fixedly arranged at the bottom of the groove, magnetic poles of the first magnetic block and the second magnetic block are opposite, and the lower end of the moving block is fixedly connected with the first spring;

the third cavity is arranged at the upper part of the moving block, an opening is formed in the upper end of the moving block and communicated with the third cavity, sliding blocks are connected to the left side end and the right side end of the third cavity in a sliding mode, the diameter of each sliding block is larger than that of each opening, a second spring is fixedly connected to the lower end of each sliding block, the lower ends of the second springs are fixedly connected with the bottom of the third cavity, a supporting rod is fixedly connected to the upper end of each sliding block, and the supporting rod penetrates through the opening and is fixedly connected with the auxiliary contact plate;

the connecting sleeve is sleeved in the middle of the supporting rod in a sliding mode, the connecting sleeve is fixedly connected with the second contact plate, the lower end of the connecting sleeve is fixedly connected with a third spring, and the lower end of the third spring is fixedly connected with the upper end of the moving block;

the auxiliary contact piece, the fixed cover that is equipped with in auxiliary contact piece middle part, fixed cover lower extreme and fixed block fixed connection, the fixed setting of fixed block is in the upper end of relay shell, the auxiliary contact piece runs through the upper end and the fixed block entering of relay shell the inside and corresponding setting of first cavity is in the top of auxiliary contact board.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic view of the housing structure of the present invention;

FIG. 5 is an electrical schematic of the present invention;

fig. 6 is a schematic view of a contact assembly of the present invention;

fig. 7 is a schematic diagram of a high-voltage direct-current relay mechanism of the utility model.

In the figure: 1. a bottom cover; 2. a PCB board; 3. a normally closed high voltage direct current relay; 4. a housing; 5. a normally closed relay control end connector; 6. normally open relay control end connector; 7. a normally open high voltage direct current relay; 8. a high voltage direct current relay; 801. a first clamping block; 802. a second clamping block; 803. a chute; 9. a slot; 901. a normally closed relay socket; 902. a normally open relay slot; 10. a bayonet; 11. a limiting groove; 12. a socket; 13. a convex brim; 14. a housing; 15. a baffle plate; 16. a common terminal; 17. a first line; 18. a second line; 19. a wiring terminal; 1901. connecting a first connecting groove; 1902. connecting groove two; 20. an auxiliary contact block; 21. a support block; 22. a second condom; 23. a first condom; 24. a first contact plate; 2401. connecting grooves III; 2402. connecting grooves; 25. fixing a sleeve; 26. a relay case; 2601. a fixed block; 2602. a first cavity; 27. an auxiliary contact plate; 28. a support bar; 29. a third spring; 30. a second magnetic block; 31. connecting sleeves; 32. a second contact plate; 33. a first magnetic block; 34. a slider; 35. a second spring; 36. a stationary case; 3601. a second cavity; 3602. a movable opening; 37. a moving block; 3701. a groove; 3702. a third cavity; 3703. an opening; 38. a first spring; 39. a control block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.

The utility model provides the following examples

Example 1

The embodiment of the utility model provides a normally open and normally closed combined relay module, as shown in fig. 1, the normally open and normally closed combined relay module comprises a bottom cover 1, a PCB 2 and a shell 4, wherein the bottom cover 1 is connected with the shell 4, the PCB 2 is arranged between the bottom cover 1 and the shell 4, two high-voltage direct-current relays 8 are arranged on the surface of the shell 4, auxiliary contacts are arranged on the high-voltage direct-current relays 8, and the two high-voltage direct-current relays 8 comprise a normally closed high-voltage direct-current relay 3 and a normally open high-voltage direct-current relay 7.

The beneficial effects of the above technical scheme are:

the normally closed high-voltage direct-current relay 3 and the normally open high-voltage direct-current relay 7 are combined, the normally closed high-voltage direct-current relay 3 and the normally open high-voltage direct-current relay 7 work independently and are not interfered with each other, the master control problem caused by logic control is avoided, two circuits can be completely isolated through the normally open relay module and the normally closed relay module, the mutual work is not influenced, the high-voltage direct-current relay 8 can be applied to the work occasions with high voltage and high current compared with the conventional low-voltage relay in the current product, the switching time of the circuit in the switching process can be effectively prolonged due to the use of the high-voltage direct-current relay 8, the auxiliary contacts are arranged on the high-voltage direct-current relay 8, the current work and fault states of the product can be conveniently mastered, and the normally closed high-voltage direct-current relay 3 and the normally open high-voltage direct-current relay 7 are combined, and the normally closed high-voltage direct-current relay 3 and the normally open high-voltage direct-current relay 7 are respectively connected with one circuit, the normally closed high-voltage direct-current relay 3 and the normally open high-voltage direct-current relay 7 are controlled by the main control to respectively control the on and off states of the circuits connected with the normally closed high-voltage direct-current relay, the problem that the static contacts inside the normally closed high-voltage direct-current relay 3 and the normally open high-voltage direct-current relay 7 are easy to interfere with each other when the main control fails to use the relay to control the on and off states of the two circuits is solved, because the contacts are concentrated in a cavity when the relay is used to control the on and off states of the two circuits, the on and off states of the circuits are realized by the movement of a movable contact, when the circuits are switched, the two static contacts are easy to interfere with each other, and the technical problem of poor contact is solved.

Example 2

On the basis of the above embodiment 1, as shown in fig. 1-4, the left and right sides of the upper end of the housing 4 are symmetrically provided with a limiting groove 11, the left and right sides of the rear end of the limiting groove 11 are symmetrically provided with sockets 12, the left and right sides of the front end of the limiting groove 11 are symmetrically provided with convex eaves 13, the lower end of each convex eaves 13 is provided with a clamping groove 14, the limiting groove 11 is communicated with the clamping groove 14, a baffle 15 is arranged between the two clamping grooves 14 which are close to each other, and the left and right sides of the housing 4 corresponding to the front end of the limiting groove 11 are symmetrically provided with clamping openings 10;

two groups of slots 9 are symmetrically arranged on the left side and the right side of the upper end of the PCB 2, the slots 9 correspond to the sockets 12 in one-to-one mode, and the two groups of slots 9 comprise two normally closed relay slots 901 and two normally open relay slots 902;

the normally closed high-voltage direct-current relay 3 is electrically connected with a normally closed relay control end connector 5, the normally open high-voltage direct-current relay 7 is electrically connected with a normally open relay control end connector 6, the normally open relay control end connector 6 is connected with the normally open relay slot 902 through the socket 12, and the normally closed relay control end connector 5 is connected with the normally closed relay slot 901 through the socket 12;

the models of the control end connector 5 and the control end connector 6 are PCT-104;

the middle of the high-voltage direct current relay 8 is provided with a first clamping block 801, the lower end of the high-voltage direct current relay 8 is provided with a second clamping block 802, a sliding groove 803 is formed between the first clamping block 801 and the second clamping block 802, the sliding groove 803 is in sliding connection with the convex eaves 13, the second clamping block 802 is in sliding connection with the clamping groove 14, and the clamping opening 10 is used for fixing the front end of the high-voltage direct current relay 8 after the high-voltage direct current relay 8 is completely matched with the clamping groove 14.

The slot 9 is a plug-in socket.

The beneficial effects of the above technical scheme are:

the limit groove 11 has a limit function for the installation of the high-voltage direct-current relay 8 on the shell 4, the baffle 15 divides the left side and the right side of the shell 4 into two parts which are completely equal, so that two high voltage direct current relays 8 can be installed on the housing 4, the PCB 2 is printed with circuits, the control end connector of the high-voltage direct-current relay 8 is connected with the slot on the PCB 2, so that the circuits on the PCB 2 of the high-voltage direct-current relay 8 are connected, the socket 12 plays a role in guiding and fixing, the slot 9, the normally open relay control end connector 6 and the normally closed relay control end connector 5 are prevented from being loosened, the normally open relay control end connector 6 and the normally closed relay control end connector 5 are detachably connected through a special plug-in slot 9, so that the condition of wrong wiring during installation can be effectively prevented, and the normally open relay control end connector 6 and the normally closed relay control end connector 5 are convenient to use; push high-voltage direct current relay 8 into the casing from the side direction of casing 4, utilize the protruding eaves 13 that stretches out on the casing 4 to compress tightly high-voltage direct current relay 8, high-voltage direct current relay 8 pushes in to target in place and draw-in groove 14 cooperation completely after, two protrusion bayonets 10 on the casing 4 lock high-voltage direct current relay 8, then with on the high-voltage direct current relay 8 control signal's connector insert correspond the serial number slot 9 can, when a certain high-voltage direct current relay 8 damages or life-span is ended, through pushing down bayonet 10, can change new high-voltage direct current relay 8 very conveniently.

Example 3

On the basis of embodiment 2, as shown in fig. 5, one end of each of the normally closed high-voltage direct-current relay 3 and the normally open high-voltage direct-current relay 7 is connected to a common terminal 16, one end of the normally closed high-voltage direct-current relay 3, which is far away from the common terminal 16, is connected to a first line 17, and one end of the normally open high-voltage direct-current relay 7, which is far away from the common terminal 16, is connected to a second line 18.

The beneficial effects of the above technical scheme are: normally open and normally closed two relay module of combination when using, normally closed high voltage direct current relay 3 and normally open high voltage direct current relay 7's one end is connected to common port 16, in the other end is connected to circuit one 17 and circuit two 18 respectively, the switching on and off state of circuit one 17 and circuit two 18 is along with the corresponding change of master control to normally closed high voltage direct current relay 3 and normally open high voltage direct current relay 7's control, normally closed high voltage direct current relay 3 and normally open high voltage direct current relay 7 are controlled alone, the condition that the master control goes wrong because of logic control has been avoided.

Example 4

On the basis of the above embodiment 3, as shown in fig. 6 to 7, the high-voltage direct-current relay 8 includes a relay case 26, a first cavity 2602 is provided in the relay case 26, and wiring assemblies are symmetrically provided on both left and right sides of an upper end of the relay case 26, and include:

the left side and the right side of the lower end of the connecting terminal 19, which are far away from the center of the connecting terminal 19, are symmetrically provided with a first connecting groove 1901, the left side and the right side of the lower end of the connecting terminal 19, which are close to the center of the connecting terminal 19, are symmetrically provided with a second connecting groove 1902, the first connecting groove 1901 is connected with the upper end of a first condom 23, and the second connecting groove 1902 is connected with the upper end of a second condom 22;

the left side and the right side of the upper end of the contact plate I24, which are far away from the center of the contact plate I24, are symmetrically provided with a connecting groove III 2401, the left side and the right side of the upper end of the contact plate I24, which are close to the center of the contact plate I24, are symmetrically provided with a connecting groove IV 2402, the connecting groove III 2401 is connected with the lower end of the first safety sleeve 23, and the connecting groove IV 2402 is connected with the lower end of the second safety sleeve 22;

the supporting block 21 is fixedly arranged between the first condom 23 and the second condom 22, the upper end of the supporting block 21 is fixedly connected with a first connecting block 1903, the first connecting block 1903 is symmetrically arranged on the left side and the right side of the lower end of the connecting terminal 19, the lower end of the supporting block 21 is fixedly connected with a second connecting block 2403, and the second connecting block 2403 is symmetrically arranged on the left side and the right side of the upper end of the first contact plate 24.

The relay case 26 is also connected with a conduction assembly, which includes:

the fixed shell 36 is fixedly arranged at the lower end of the relay shell 26, a second cavity 3601 is arranged in the fixed shell 36, a movable port 3602 is arranged at the lower end of the fixed shell 36, and the movable port 3602 is communicated with the second cavity 3601;

the control block 39 enters the second cavity 3601 through the movable port 3602, the lower part of the control block 39 is in sliding connection with the movable port 3602, the diameter of the middle part of the control block 39 is larger than that of the movable port 3602, the upper end of the middle part of the control block 39 is fixedly provided with a first spring 38, the first spring 38 is sleeved on the upper part of the control block 39, and the upper end of the upper part of the control block 39 is fixedly provided with a first magnetic block 33;

a moving block 37, wherein the moving block 37 is arranged between the first cavity 2602 and the second cavity 3601, the moving block 37 penetrates through the lower end of the relay case 26 and is slidably connected with the relay case 26, a groove 3701 is arranged at the lower end of the moving block 37, the groove 3701 is matched with the upper part of the control block 39, a second magnetic block 30 is fixedly arranged at the bottom of the groove 3701, the magnetic poles of the first magnetic block 33 and the second magnetic block 30 are opposite, and the first spring 38 is fixedly connected to the lower end of the moving block 37;

a third cavity 3702, the third cavity 3702 being disposed at the upper portion of the moving block 37, an opening 3703 being disposed at the upper end of the moving block 37, the opening 3703 being communicated with the third cavity 3702, a slider 34 being slidably connected to both left and right sides of the third cavity 3702, a diameter of the slider 34 being greater than that of the opening 3703, a second spring 35 being fixedly connected to a lower end of the slider 34, a lower end of the second spring 35 being fixedly connected to the bottom of the third cavity 3702, a support rod 28 being fixedly connected to an upper end of the slider 34, the support rod 28 passing through the opening 3703 and being fixedly connected to the auxiliary contact plate 27;

the connecting sleeve 31 is sleeved on the middle part of the supporting rod 28 in a sliding manner, the connecting sleeve 31 is fixedly connected with the second contact plate 32, the lower end of the connecting sleeve 31 is fixedly connected with a third spring 29, and the lower end of the third spring 29 is fixedly connected with the upper end of the moving block 37;

the auxiliary contact piece 20, the fixed cover 25 that is equipped with in auxiliary contact piece 20 middle part, fixed cover 25 lower extreme and fixed block 2601 fixed connection, fixed block 2601 is fixed to be set up the upper end of relay shell 26, auxiliary contact piece 20 runs through the upper end of relay shell 26 and fixed block 2601 get into inside and the corresponding setting of first cavity 2602 are in the top of auxiliary contact board 27.

The supporting block 21, the relay case 26, the moving block 37, the fixed case 36 and the control block 39 are all made of insulating materials.

The beneficial effects of the above technical scheme are:

the first contact plate 24 is a static contact, the auxiliary contact block 20 is an auxiliary static contact, the second contact plate 32 is a movable contact, the auxiliary contact plate 27 is an auxiliary movable contact, a contact assembly is formed by the first contact plate 24 and the second contact plate 32, the auxiliary contact block 20 and the auxiliary contact plate 27, the contact assembly comprises a normally closed contact and a normally open contact, when the contact assembly is a normally closed contact, the first contact plate 24, the second contact plate 32, the auxiliary contact block 20 and the auxiliary contact plate 27 are disconnected, the high-voltage direct current relay 8 is in a conducting state, when the first contact plate 24, the second contact plate 32, the auxiliary contact block 20 and the auxiliary contact plate 27 are closed, the high-voltage direct current relay 8 is in a disconnected state, when the contact assembly is a normally open contact, the first contact plate 24, the second contact plate 32, the auxiliary contact block 20 and the auxiliary contact plate 27 are disconnected, the high-voltage direct current relay 8 is in a disconnected state, and the first contact plate 24, the second contact plate 32, the auxiliary contact plate 32, the contact plate 24, the auxiliary contact plate 27 and the contact plate 27 are in a disconnected state, When the auxiliary contact block 20 and the auxiliary contact plate 27 are closed, the high-voltage direct-current relay 8 is in a conducting state, the binding post 19 is electrically connected with the contact plate I24 through the first condom 23 and the second condom 22, the first condom 23 and the second condom 22 are fuses, and overload protection is performed by adopting the first condom 23 and the second condom 22, so that a plurality of fuses 3 are integrated into the high-voltage direct-current relay 8, the high-voltage direct-current relay has good overcurrent capacity and voltage resistance, the danger caused by overhigh load current and short circuit is effectively avoided, and the safety of the high-voltage direct-current relay 8 is improved; the diameter of the first condom 23 is larger than that of the second condom 22, the supporting block 21 is arranged between the first condom 23 and the second condom 22, a supporting effect can be achieved, the upper binding post 1 and the lower contact 2 are always spaced, the first condom 23 between the binding post 19 and the first contact plate 24 and the second condom 22 are guaranteed to be electrically insulated after being melted, the binding post 19 and the first contact plate 24 are simultaneously prevented from extruding, and the first condom 23 and the second condom 22 are protected;

the control block 39 in the conduction assembly can push the moving block 37 to move, so as to drive the contact plate two 32 and the auxiliary contact plate 27 to move, and achieve the purpose of opening and closing the contact plate one 24 and the contact plate two 32, the auxiliary contact block 20 and the auxiliary contact plate 27, so as to complete the on and off states of the high-voltage direct-current relay 8, the magnetic poles of the magnetic block one 33 and the magnetic block two 31 are opposite, when the control block 39 pushes the moving block 37, the stability of the two can be improved, the moving block 37 is prevented from being cheap and the conduction effect is prevented from being influenced, the spring one 38 has a buffering effect on the control block 39 pushing the moving block 37, the moving strokes of the connecting sleeve 31 and the auxiliary contact plate 27 are respectively increased by the spring two 35 and the spring three 29, no insulating block is arranged between the auxiliary contact plate 27 and the contact plate two 32, the auxiliary contact plate 27 and the auxiliary contact block 20 are in a connected state, and the current working state and fault state of the high-voltage direct-current relay 8 can be monitored in real time, if the auxiliary contact plate 27 and the auxiliary contact block 20 are in an off state, the high-voltage direct-current relay 8 should be in an off state, and if the auxiliary contact plate 27 and the auxiliary contact block 20 are in an on state, the high-voltage direct-current relay 8 should be in an on state, so that the contact plate II 32 fixed with the connecting sleeve 31 and the auxiliary contact plate 27 are prevented from being damaged due to the fact that the moving block 37 moves too much, and the service life and the on effect of the high-voltage direct-current relay 8 are improved.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. The utility model provides a normally open and normally closed two combined relay module which characterized in that: including bottom (1), PCB board (2) and casing (4), bottom (1) with casing (4) are connected, PCB board (2) set up between bottom (1) and casing (4), casing (4) surface is equipped with two high voltage direct current relay (8), be equipped with auxiliary contact on high voltage direct current relay (8), two high voltage direct current relay (8) include normally closed high voltage direct current relay (3) and normally open high voltage direct current relay (7).

2. A normally open and normally closed combined relay module according to claim 1, wherein: casing (4) upper end left and right sides symmetry is equipped with spacing groove (11), the rear end left and right sides symmetry of spacing groove (11) is equipped with socket (12), the front end left and right sides symmetry of spacing groove (11) is equipped with protruding eaves (13), the lower extreme of protruding eaves (13) is equipped with draw-in groove (14), spacing groove (11) and draw-in groove (14) intercommunication are equipped with baffle (15) between two draw-in grooves (14) that are close to each other, casing (4) are in the front end of spacing groove (11) corresponds department left and right sides symmetry and is equipped with bayonet socket (10).

3. A normally open and normally closed combined relay module according to claim 2, wherein: the PCB is characterized in that two groups of slots (9) are symmetrically arranged on the left side and the right side of the upper end of the PCB (2), the slots (9) correspond to the sockets (12) in a one-to-one mode, and the two groups of slots (9) comprise two normally closed relay slots (901) and two normally open relay slots (902).

4. A normally open and normally closed combined relay module according to claim 3, wherein: normally closed high voltage direct current relay (3) are connected with normally closed relay control end connector (5) electricity, normally open high voltage direct current relay (7) are connected with normally open relay control end connector (6) electricity, normally open relay control end connector (6) are passed through socket (12) with normally open relay slot (902) are connected, normally closed relay control end connector (5) are passed through socket (12) with normally closed relay slot (901) are connected.

5. A normally open and normally closed combined relay module according to claim 2, wherein: high-voltage direct current relay (8) middle part is equipped with fixture block one (801), the lower extreme of high-voltage direct current relay (8) is equipped with fixture block two (802), constitute spout (803) between fixture block one (801) and fixture block two (802), spout (803) with protruding eaves (13) sliding connection, fixture block two (802) with draw-in groove (14) sliding connection, bayonet socket (10) are used for high-voltage direct current relay (8) with draw-in groove (14) cooperate the back completely to the front end of high-voltage direct current relay (8) is fixed.

6. A normally open and normally closed combined relay module according to claim 1, wherein: one end of the normally closed high-voltage direct-current relay (3) and one end of the normally open high-voltage direct-current relay (7) are connected with a public end (16), one end, far away from the public end (16), of the normally closed high-voltage direct-current relay (3) is connected with a first line (17), and one end, far away from the public end (16), of the normally open high-voltage direct-current relay (7) is connected with a second line (18).

7. A normally open and normally closed combined relay module according to claim 1, wherein: high voltage direct current relay (8) include relay shell (26), inside first cavity (2602) that is equipped with of relay shell (26), the left and right sides symmetry of relay shell (26) upper end is equipped with the wiring subassembly, the wiring subassembly includes:

the left side and the right side of the lower end of the connecting terminal (19), which are far away from the center of the connecting terminal (19), are symmetrically provided with a first connecting groove (1901), the left side and the right side of the lower end of the connecting terminal (19), which are close to the center of the connecting terminal (19), are symmetrically provided with a second connecting groove (1902), the first connecting groove (1901) is connected with the upper end of a first safety sleeve (23), and the second connecting groove (1902) is connected with the upper end of a second safety sleeve (22);

the left side and the right side of the upper end of the first contact plate (24), which are far away from the center of the first contact plate (24), are symmetrically provided with a third connecting groove (2401), the left side and the right side of the upper end of the first contact plate (24), which are close to the center of the first contact plate (24), are symmetrically provided with a fourth connecting groove (2402), the third connecting groove (2401) is connected with the lower end of the first condom (23), and the fourth connecting groove (2402) is connected with the lower end of the second condom (22);

the supporting block (21), the supporting block (21) is fixedly arranged between the first condom (23) and the second condom (22), the first connecting block (1903) is fixedly connected to the upper end of the supporting block (21), the first connecting block (1903) is symmetrically arranged on the left side and the right side of the lower end of the connecting terminal (19), the second connecting block (2403) is fixedly connected to the lower end of the supporting block (21), and the second connecting block (2403) is symmetrically arranged on the left side and the right side of the upper end of the first contact plate (24).

8. The two-combination normally open and normally closed relay module of claim 7, wherein: the relay case (26) is further connected with a conduction assembly, the conduction assembly comprising:

the fixed shell (36) is fixedly arranged at the lower end of the relay shell (26), a second cavity (3601) is formed in the fixed shell (36), a movable port (3602) is formed in the lower end of the fixed shell (36), and the movable port (3602) is communicated with the second cavity (3601);

the control block (39) enters the second cavity (3601) through the movable port (3602), the lower part of the control block (39) is in sliding connection with the movable port (3602), the diameter of the middle part of the control block (39) is larger than that of the movable port (3602), a first spring (38) is fixedly arranged at the upper end of the middle part of the control block (39), the first spring (38) is sleeved on the upper part of the control block (39), and a first magnetic block (33) is fixedly arranged at the upper end of the upper part of the control block (39);

the moving block (37) is arranged between the first cavity (2602) and the second cavity (3601), the moving block (37) penetrates through the lower end of the relay shell (26) and is in sliding connection with the relay shell (26), a groove (3701) is formed in the lower end of the moving block (37), the groove (3701) is matched with the upper portion of the control block (39), a second magnetic block (30) is fixedly arranged at the bottom of the groove (3701), the magnetic poles of the first magnetic block (33) and the second magnetic block (30) are opposite, and the first spring (38) is fixedly connected to the lower end of the moving block (37);

a third cavity (3702), the third cavity (3702) being disposed at an upper portion of the moving block (37), an opening (3703) being disposed at an upper end of the moving block (37), the opening (3703) being communicated with the third cavity (3702), a slider (34) being slidably connected to left and right sides of the third cavity (3702), a diameter of the slider (34) being larger than a diameter of the opening (3703), a second spring (35) being fixedly connected to a lower end of the slider (34), a lower end of the second spring (35) being fixedly connected to a bottom of the third cavity (3702), a support rod (28) being fixedly connected to an upper end of the slider (34), the support rod (28) passing through the opening (3703) and being fixedly connected to the auxiliary contact plate (27);

the connecting sleeve (31) is sleeved in the middle of the supporting rod (28) in a sliding mode, the connecting sleeve (31) is fixedly connected with the second contact plate (32), the lower end of the connecting sleeve (31) is fixedly connected with a third spring (29), and the lower end of the third spring (29) is fixedly connected with the upper end of the moving block (37);

auxiliary contact piece (20), the fixed cover (25) that is equipped with in auxiliary contact piece (20) middle part, fixed cover (25) lower extreme and fixed block (2601) fixed connection, fixed block (2601) are fixed to be set up the upper end of relay case (26), auxiliary contact piece (20) run through the upper end and the fixed block (2601) of relay case (26) get into inside and the corresponding setting of first cavity (2602) are in the top of auxiliary contact board (27).

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