CN209388963U - Relay - Google Patents

Abstract

This disclosure relates to a kind of relay, including shell, transmission shaft, the first stationary contact and the second stationary contact；Dynamic touch panel, dynamic touch panel can move between the first position and the second position under the drive of transmission shaft, move touch panel at first position, and the first stationary contact and the second stationary contact disconnect electrical connection, move touch panel at the second position, the first stationary contact and the second stationary contact conduct；And auxiliary contact, including the first permanent magnet corresponding with the first stationary contact and the second permanent magnet corresponding with the second stationary contact, the first tongue tube matched with the first permanent magnet, and the second tongue tube matched with the second permanent magnet, first permanent magnet and the second permanent magnet move up and down under the drive of transmission shaft, when the dynamic touch panel is located at first position, the first tongue tube and the second tongue tube are in first state；When the dynamic touch panel is located at the second position, first tongue tube and second tongue tube are in the second state.

Description

Relay

Technical field

This disclosure relates to automatically controlled component field, and in particular, to a kind of relay.

Background technique

Relay usually all has auxiliary contact, and being opened or closed for auxiliary contact is consistent with main contacts, Jin Eryong In judging being opened or closed for main contacts.Existing auxiliary contact utilize magnetic field induction principle, including permanent magnet and can be with master The tongue tube that contacts status changes, for example, that is, main contacts is closed when movable contact and stationary contact point contact, tongue tube is passed through in magnetic field, Tongue tube closure；When movable contact and stationary contact separate, i.e., main contacts disconnects, and magnetic field is disconnected without tongue tube, tongue tube, real Now to the monitoring of main contacts state.But relay usually has there are two stationary contact, and tongue tube only is set in unilateral side, it cannot The working condition of two stationary contacts of enough accurately detections, when the contact sintering of relay one end, when the contact of the other end is normal, by chance Tongue tube is arranged in the normal side in contact, then cannot detect that the contact of the other end has been sintered, in fact it could happen that erroneous judgement influences The safety of system.

Utility model content

Purpose of this disclosure is to provide a kind of relay, which is able to solve what judging by accident occurred in relay auxiliary contact Technical problem realizes the accurate monitoring to two stationary contacts of relay, improves the safety of system.

To achieve the goals above, the disclosure provides a kind of relay, which includes shell；Transmission shaft, can be upper and lower It is set in the shell to movement；Stationary contact, including the first stationary contact and the second stationary contact；Dynamic touch panel, is fixedly connected on institute The end of transmission shaft is stated, the dynamic touch panel can move between the first position and the second position under the drive of the transmission shaft, At the first position, first stationary contact and second stationary contact disconnect electrical connection, the dynamic touching to the dynamic touch panel In the second position, first stationary contact and second stationary contact conduct plate；Auxiliary contact, including it is fixed on institute State on touch panel, the first permanent magnet corresponding with first stationary contact and with second stationary contact corresponding second forever Magnet, the first tongue tube matched with first permanent magnet, and the second dry spring matched with second permanent magnet Pipe, first permanent magnet and second permanent magnet can move up and down under the drive of the transmission shaft, the dynamic touch panel position When the first position, first tongue tube and second tongue tube are in first state；The dynamic touch panel is located at When the second position, first tongue tube and second tongue tube are in the second state.

Optionally, first tongue tube and second tongue tube respectively first permanent magnet and described second forever Magnet by first state switches to the second state, first tongue tube and the second dry spring during moving from the bottom to top Pipe switches to by the second state during first permanent magnet and second permanent magnet from top to bottom move respectively One state.

Optionally, the first state is off-state, and second state is on state.

Optionally, the upper surface of the dynamic touch panel be used for first stationary contact and the second stationary contact point contact or point From the both ends that, first permanent magnet and second permanent magnet are separately fixed at the dynamic touch panel lower surface.

Optionally, first tongue tube and second tongue tube are separately fixed on the side wall of the shell, described Mounting hole is formed on the roof of shell, first stationary contact and second stationary contact pass through the mounting hole interval and fix On the roof of the shell, first tongue tube and second tongue tube be fixed on the same side wall of the shell or On opposite side wall, and it is arranged at the position nearest apart from first stationary contact and second stationary contact.

Optionally, the cross section of the shell is formed as ring structure, which includes the first semicircle segmental arc, second The horizontal segment of semicircle segmental arc and connection the first semicircle segmental arc and the second semicircle segmental arc, first stationary contact and institute It states the second stationary contact to be located on the line in the first semicircle segmental arc and the second semicircle segmental arc center of circle, described first is dry Reed pipe and second tongue tube are fixed on the same horizontal segment or on opposite horizontal segment, or are separately fixed at described On the vertex of first semicircle segmental arc and the second semicircle segmental arc.

Optionally, first tongue tube and second tongue tube electrical connection.

Optionally, first tongue tube and second tongue tube pass through mounting bracket respectively and are fixed on the shell On side wall, and vertically extend.

Optionally, the pole N and the pole S of first permanent magnet and second permanent magnet are arranged along the vertical direction or along water Square to setting.

Optionally, the relay further includes the dynamic iron core for being set in the transmission shaft lower end, and is placed in the dynamic iron The coil that the outside of core is used to that the dynamic iron core to be driven to move up and down.

Through the above technical solutions, the first stationary contact and the second stationary contact disconnect electricity when dynamic touch panel is located at first position Farther out, the first tongue tube and the second tongue tube are in first state for connection, tongue tube and permanent magnet distance；When transmission shaft is upward Movement, when dynamic touch panel is located at the second position, the first stationary contact and the second stationary contact are conducted, and relay is in the conductive state, are done Reed pipe and permanent magnet are closer, and using magnetic induction principle, the first tongue tube and the second tongue tube are respectively by adjacent thereto The magnetic force of first permanent magnet and the second permanent magnet influences to be in the second state, that is, the up and down motion of permanent magnet can change on dynamic touch panel The state of tongue tube in a disguised form is answered, and then the connection status of stationary contact can be judged.It is in contact in dynamic touch panel with stationary contact Auxiliary contact are respectively set in both ends, can the state to each stationary contact and dynamic touch panel individually monitored, avoid the occurrence of erroneous judgement Situation guarantees the accuracy of monitored results, in addition, the high-pressure section of relay is kept completely separate with monitor portion, effectively avoids height Influence of the laminate section to monitor portion, improves the safety of system.

Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:

Fig. 1 is that the structure moved when touch panel is located at first position in the relay of one illustrative embodiments of disclosure offer is shown It is intended to；

Fig. 2 is that the structure moved when touch panel is located at the second position in the relay of one illustrative embodiments of disclosure offer is shown It is intended to；

Fig. 3 is the structural schematic diagram of the first tongue tube and the second tongue tube position in the relay of disclosure offer；

Fig. 4 is the structure moved when touch panel is located at first position in the relay of disclosure another exemplary embodiment offer Schematic diagram；

Fig. 5 is the structure moved when touch panel is located at the second position in the relay of disclosure another exemplary embodiment offer Schematic diagram；

Fig. 6 is to move touch panel in the relay of disclosure another exemplary embodiment offer to be located at another view when first position The structural schematic diagram at angle；

Fig. 7 is to move touch panel in the relay of disclosure another exemplary embodiment offer to be located at another view when the second position The structural schematic diagram at angle.

Description of symbols

1 shell, 2 transmission shaft

31 first stationary contact, 32 second stationary contact

4 dynamic 511 first tongue tubes of touch panel

512 second tongue tube, 521 first permanent magnet

522 second permanent magnet, 10 mounting hole

11 first semicircle segmental arc, 12 second semicircle segmental arc

13 horizontal segment, 14 supporting plate

6 insulating part, 71 dynamic iron core

72 coil, 73 locating part

74 return unit, 75 bolster

Specific embodiment

It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.

In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as "upper" "lower" is typically referred to phase It answers and defines on the basis of the drawing of attached drawing, "inner" "outside" refers to the inner and outer of corresponding component profile.Term used in the disclosure " first " " second " etc. is that do not have succession and importance to distinguish an element and another element.In addition, following When description is related to attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.

As depicted in figs. 1 and 2, the disclosure provides a kind of relay, the relay include shell 1, transmission shaft 2, stationary contact, Dynamic touch panel 4 and auxiliary contact, wherein transmission shaft 2 can be set to up and down in shell 1；Stationary contact includes the first stationary contact Point 31 and the second stationary contact 32, dynamic touch panel 4 are fixedly connected on the end of transmission shaft 2, and moving touch panel 4 can be under the drive of transmission shaft 2 It moves between the first position and the second position, as shown in Figure 1, touch panel 4 is moved at first position, the first stationary contact 31 and second Stationary contact 32 disconnects electrical connection, as shown in Fig. 2, dynamic touch panel 4, at the second position, the first stationary contact 31 and the second stationary contact 32 are electric Conducting；Auxiliary contact include being fixed on dynamic touch panel 4, the first permanent magnet 521 corresponding with the first stationary contact and with it is second quiet Corresponding second permanent magnet 522 in contact, the first tongue tube 511 matched with the first permanent magnet 521, and with the second permanent magnetism The second tongue tube 512 that iron 522 matches, the first permanent magnet 521 and the second permanent magnet 522 can be under the drive of transmission shaft 2 on Lower movement, when dynamic touch panel 4 is located at above-mentioned first position, the first tongue tube 511 and the second tongue tube 512 are in first state； When dynamic touch panel 4 is located at said second position, the first tongue tube 511 and the second tongue tube 512 are in the second state.

Here, it should be noted that in the disclosure, shell 1 is ceramic shell, and the high-pressure section of relay is enclosed in In shell, improve whole safety, the first tongue tube 511 and the second tongue tube 512 can using open type, closed type or The three kinds of ways of contact of person's normally-open normally-close type, the magnetic field formed when permanent magnet is close to tongue tube magnetize the reed of tongue tube, spring The contact part of piece attracts each other under magneticaction, is closed tongue tube, and the first permanent magnet 521 and the second permanent magnet 522 exist Movement in up and down direction can change 512 on off operating mode of the first tongue tube 511 and the second tongue tube, and then to the shape of relay State is judged.

Through the above technical solutions, the first stationary contact 31 and the second stationary contact 32 are disconnected when dynamic touch panel 4 is located at first position Electrical connection is opened, farther out, the first tongue tube 511 and the second tongue tube 512 are in first state for tongue tube and permanent magnet distance；When Transmission shaft 2 moves upwards, and when dynamic touch panel 4 is located at the second position, the first stationary contact 31 and the second stationary contact 32 are connected, at relay In on state, tongue tube and permanent magnet are closer, using magnetic induction principle, the first tongue tube 511 and the second tongue tube 512 It is influenced respectively by the magnetic force of the first permanent magnet 521 and the second permanent magnet 522 adjacent thereto in the second state, that is, dynamic touch panel 4 The state of corresponding tongue tube can be changed in the up and down motion of upper permanent magnet, can judge the connection status of stationary contact.In dynamic touching Auxiliary contact are respectively set in the both ends that plate 4 is in contact with stationary contact, can carry out to the state of each stationary contact and dynamic touch panel 4 independent The case where monitoring, avoiding the occurrence of erroneous judgement, guarantees the accuracy of monitored results, in addition, the high-pressure section and monitor portion of relay It is kept completely separate, high-pressure section is effectively avoided to improve the safety of system to the influence of monitor portion.

Specifically, in the disclosure, the first tongue tube 511 and the second tongue tube 512 are respectively in the first permanent magnet 521 and Two permanent magnets 522 by first state switch to the second state during moving from the bottom to top, and the first tongue tube 511 and second is dry Reed pipe 512 is switched during the first permanent magnet 521 and the second permanent magnet 522 from top to bottom move by the second state respectively To first state.Wherein, in the present embodiment, as shown in Figure 1, first state can be off-state, as shown in Fig. 2, the Two-state can be on state, that is to say, that the first tongue tube 511 and the second tongue tube 512 are in 521 He of the first permanent magnet Second permanent magnet 522 during moving by the switching-on state of off-state from the bottom to top；First tongue tube 511 and Two tongue tubes 512 are switched to during the first electromagnet 521 and the second electromagnet 522 from top to bottom move by state Off-state.More specifically, the up and down motion of dynamic touch panel 4, changes the distance of permanent magnet and tongue tube, and then produce by permanent magnet The on-off of raw field drives tongue tube, when dynamic touch panel 4 is located at first position, the first stationary contact 31 and the second stationary contact 32 are not Conducting, permanent magnet farther out, do not impact it apart from tongue tube；When transmission shaft 2 moves upwards, dynamic touch panel 4 is located at second When setting, the first stationary contact 31 and the conducting of the second stationary contact 32, permanent magnet is closer apart from tongue tube, and the magnetic field that permanent magnet generates is to dry Reed pipe has an impact, driving tongue tube movement.

In other embodiments, first state can also be on state, and the second state can also be off-state, That is the first tongue tube 511 and the second tongue tube 512 move from the bottom to top in the first permanent magnet 521 and the second permanent magnet 522 During off-state switched to by state, the first tongue tube 511 and the second tongue tube 512 are in the first permanent magnet 521 By the switching-on state of off-state, the magnetic pole of this and permanent magnet during from top to bottom being moved with the second permanent magnet 522 Arranged direction is related with the direction of motion, and the movement of the first permanent magnet 521 and the second permanent magnet 522 in the up-down direction can change The on off operating mode of corresponding tongue tube, and the difference of the direction of motion can cause the state change of tongue tube different.Hereinafter will It is moved from the bottom to top in the first permanent magnet 521 and the second permanent magnet 522 respectively with the first tongue tube 511 and the second tongue tube 512 During by the switching-on state of off-state, off-state is switched to by state during from top to bottom moving Embodiment for describe in detail.

The upper surface of dynamic touch panel 4 is for contacting or separating with the first stationary contact 31 and the second stationary contact 32, the first permanent magnet 521 and second permanent magnet 522 be separately fixed at the both ends of dynamic 4 lower surface of touch panel.In this way, the first permanent magnet 521 and the second permanent magnetism Iron 522 is firmly secured on dynamic touch panel 4 and servo-actuated touch panel 4 moves up and down, and is moved touch panel 4 and is fixed by insulating part 6, such as rubber In the end of transmission shaft 2, contact or disconnect with the first stationary contact 31 and the second stationary contact 32 respectively, realize relay conducting or It closes.

First tongue tube 511 and the second tongue tube 512 can be separately fixed on the side wall of shell 1, the cloth set of the two It can be a variety of for setting with arrangement.In the disclosure, as shown in figures 1 and 3, it is formed with mounting hole 10 on the roof of shell 1, First stationary contact 31 and the second stationary contact 32 pass through the interval of mounting hole 10 and are fixed on the roof of shell 1, the first tongue tube 511 It can be fixed on the same side wall of shell 1 or on opposite side wall with the second tongue tube 512, and be arranged in distance first At stationary contact 31 and the nearest position of the second stationary contact 32.In this way, when coil 72 be powered after, dynamic iron core 71 drive transmission shaft 2 to Upper movement moves touch panel 4 respectively with two stationary contact point contacts, and relay is connected, at this point, the first permanent magnet 521 and the second permanent magnet 522 magnetic fields generated can pass through the first tongue tube 511 and the second tongue tube 512 respectively, when the first stationary contact 31 and the second stationary contact When point 32 can work normally, the state of the first tongue tube 511 and the second tongue tube 512 can change, such as by disconnection shape State becomes on state, if the state of tongue tube can not change, illustrates that corresponding stationary contact may be sintered, and first Tongue tube 511 and the second tongue tube 512 are respectively and positioned at the first permanent magnet 521 and the second permanent magnet 522 for moving 4 both ends of touch panel It matches, the first stationary contact 31 and the second stationary contact 32 can individually be monitored, guarantee the accuracy of monitored results.

More specifically, the ring structure includes the first semicircle as shown in figure 3, the cross section of shell 1 is formed as ring structure Segmental arc 11, the second semicircle segmental arc 12 and the horizontal segment 13 for connecting the first semicircle segmental arc 11 and the second semicircle segmental arc 12, first is quiet Contact 31 and the second stationary contact 32 are located on the line in 12 center of circle of the first semicircle segmental arc 11 and the second semicircle segmental arc, and first is dry Reed pipe 511 and the second tongue tube 512 are fixed in same level section 13 (arrangement as shown in A and D in figure) or opposite On horizontal segment 13 (arrangement as shown in B and C in figure), or it is separately fixed at the first semicircle segmental arc 11 and the second semicircle On the vertex of segmental arc 12 (arrangement as shown in E in figure).That is, the first tongue tube 511 and the second tongue tube 512 are fixed on On the side wall of shell 1, and corresponding with the position of the first stationary contact 31 and the second stationary contact 32, guarantee with corresponding permanent magnet away from From nearest, magnetic field is transferred to corresponding tongue tube, is turned it on, response is sensitive rapidly, more accurately reflects two stationary contacts The state of point and dynamic touch panel 4.

In the disclosure, the first tongue tube 511 and the second tongue tube 512 are separately fixed on the side wall of shell 1, the two phase Parallel connection individually monitors two stationary contacts, and in other embodiments, the first tongue tube 511 and the second tongue tube 512 can To be electrically connected by conducting wire, i.e., the two uses concatenated connection type, as long as in this way, one of stationary contact is burnt The state of knot, the first tongue tube 511 and the second tongue tube 512 will not change, and equally can be realized to two stationary contacts It is monitored with the working condition of dynamic touch panel.

First tongue tube 511 and the second tongue tube 512 can be horizontally fixed on the side wall of shell 1, in the disclosure, such as Shown in Fig. 1 and Fig. 2, the first tongue tube 511 and the second tongue tube 512 are fixed on shell by mounting bracket (not shown) respectively It on the side wall of body 1, and vertically extends, especially when the first tongue tube 511 and the second tongue tube 512 are fixed on the first half When the vertex of arc section 11 and the second semicircle segmental arc 12, convenient for fixing.

The arrangement of first permanent magnet 521 and the second permanent magnet 522 can be a variety of.One as the disclosure is exemplary Embodiment, as depicted in figs. 1 and 2, the pole N and the pole S of the first permanent magnet 521 and the second permanent magnet 522 are set along the vertical direction It sets, when dynamic touch panel 4 and corresponding stationary contact point contact, when relay is connected, the direction in magnetic field is as shown by the arrows in Figure 2, and magnetic field can Reed is magnetized from the bottom to top, is closed tongue tube, is consistent with the state of dynamic touch panel 4 and stationary contact, guarantees judgement As a result accuracy.

As the another exemplary embodiment of the disclosure, as shown in Figure 4 and Figure 5, the first permanent magnet 521 and second is forever The pole N and the pole S of magnet 522 can be with horizontally disposed, when dynamic touch panel 4 and corresponding stationary contact point contact, relay conducting When, the direction in magnetic field is as shown by the arrows in Figure 5, changes magnetic field to the direction of arcing power, can be simultaneously to spaced Reed is magnetized, and rapidly, sensitivity is high for response.

As the another exemplary embodiment of the disclosure, the pole N of the first permanent magnet 521 and the second permanent magnet 522 may be used also To be arranged towards paper direction, i.e., direction setting as shown in Figure 6 and Figure 7, similarly, when dynamic touch panel 4 and corresponding stationary contact Contact, when relay is connected, the direction in magnetic field is as shown by the arrows in Figure 7, and similarly, magnetic field can simultaneously magnetize reed, It is closed tongue tube, guarantees the state consistency with stationary contact and dynamic touch panel.

The mode for realizing that transmission shaft 2 moves up and down can be a variety of.In the disclosure, as shown in Figure 1, what the disclosure provided Relay further includes the dynamic iron core 71 for being set in 2 lower end of transmission shaft, and is placed in the outside of dynamic iron core 71 for driving dynamic iron core 71 coils 72 to move up and down generate electromagnetic field after the energization of coil 72, as shown in Fig. 2, work of the dynamic iron core 71 by electromagnetic force With driving transmission shaft 2, dynamic touch panel 4 and permanent magnet to move upwards, contact of the touch panel 4 with stationary contact is moved to realize, at relay In on state；After coil 72 powers off, dynamic iron core 71 can move downward under the effect of gravity, restore to disconnection shown in FIG. 1 State.

In the disclosure, as shown in Figure 1, relay further includes the supporting plate 14 being fixed in shell 1, it is set in transmission shaft 2 The upper and locating part 73 between supporting plate 14 and dynamic iron core 71, and support the reset between locating part 73 and dynamic iron core 71 Part 74.Dynamic iron core 71 drives transmission shaft 2 etc. to move upwards after coil 72 is powered, when dynamic iron core 71 moves to dynamic touch panel 4 and quiet When contact contacts, locating part 73 can limit the position of dynamic iron core 71 to preventing dynamic iron core 71 from moving upwards；When coil 72 is disconnected After electricity, under the action of return unit 74, dynamic iron core 71 can be pushed to move downward, as shown in fig. 1, return unit 74 can be bullet Spring is formed with the holding tank for accommodating spring on the lower end surface of locating part 73, improve spring and locating part 73 connect it is reliable Property.

Further, as shown in Figure 1, the relay further includes the bolster 75 being connected between dynamic touch panel 4 and supporting plate 14, Such as spring, after coil 72 is powered, dynamic iron core 71 overcomes the active force of spring to move upwards, so that dynamic touch panel 4 can delay Stationary contact is slowly contacted, buffer function is played.

The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can No further explanation will be given for the combination of energy.

In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims (10)

1. a kind of relay characterized by comprising

Shell (1)；

Transmission shaft (2) can be set to up and down in the shell (1)；

Stationary contact, including the first stationary contact (31) and the second stationary contact (32)；

Dynamic touch panel (4), are fixedly connected on the end of the transmission shaft (2), the dynamic touch panel (4) can be in the transmission shaft (2) Moved between the first position and the second position under drive, the dynamic touch panel (4) at the first position, first stationary contact Point (31) and second stationary contact (32) disconnect electrical connection, and in the second position, described first is quiet for the dynamic touch panel (4) Contact (31) and second stationary contact (32) conduct；

Auxiliary contact, including be fixed on the dynamic touch panel (4), the first permanent magnet corresponding with the first stationary contact (31) (521) and the second permanent magnet (522) corresponding with the second stationary contact (32), match with first permanent magnet (521) The first tongue tube (511) closed, and the second tongue tube (512) matched with second permanent magnet (522), described first Permanent magnet (521) and second permanent magnet (522) can move up and down under the drive of the transmission shaft (2), the dynamic touch panel (4) when being located at the first position, first tongue tube (511) and second tongue tube (512) are in first state； When the dynamic touch panel (4) is located at the second position, first tongue tube (511) and second tongue tube (512) are located In the second state.

2. relay according to claim 1, which is characterized in that first tongue tube (511) and the second dry spring (512) are managed respectively during first permanent magnet (521) and second permanent magnet (522) move from the bottom to top by institute It states first state and switches to second state, first tongue tube (511) and second tongue tube (512) are respectively in institute It states and is switched during the first permanent magnet (521) and second permanent magnet (522) from top to bottom move by second state To the first state.

3. relay according to claim 2, which is characterized in that the first state is off-state, second shape State is on state.

4. relay according to claim 1, which is characterized in that the upper surface of the dynamic touch panel (4) is used for and described the One stationary contact (31) and second stationary contact (32) contact or separation, first permanent magnet (521) and second permanent magnetism Iron (522) is separately fixed at the both ends of dynamic touch panel (4) lower surface.

5. relay described in any one of -4 according to claim 1, which is characterized in that first tongue tube (511) and institute It states the second tongue tube (512) to be separately fixed on the side wall of the shell (1), is formed with installation on the roof of the shell (1) Hole (10), first stationary contact (31) and second stationary contact (32) are fixed on described across the mounting hole (10) interval On the roof of shell, first tongue tube (511) and second tongue tube (512) are fixed on the same of the shell (1) On side wall or on opposite side wall, and it is arranged in apart from first stationary contact (31) and second stationary contact (32) most At close position.

6. relay according to claim 5, which is characterized in that the cross section of the shell (1) is formed as ring structure, The ring structure include the first semicircle segmental arc (11), the second semicircle segmental arc (12) and connection the first semicircle segmental arc (11) and The horizontal segment (13) of the second semicircle segmental arc (12), first stationary contact (31) and second stationary contact (32) difference position In on the line in the first semicircle segmental arc (11) and the second semicircle segmental arc (12) center of circle, first tongue tube (511) It is fixed on the same horizontal segment (13) or on opposite horizontal segment (13) with second tongue tube (512), or respectively It is fixed on the vertex of the first semicircle segmental arc (11) and the second semicircle segmental arc (12).

7. relay according to claim 5, which is characterized in that first tongue tube (511) and the second dry spring Manage (512) electrical connection.

8. relay according to claim 5, which is characterized in that first tongue tube (511) and the second dry spring Pipe (512) is fixed on the side wall of the shell (1) respectively by mounting bracket, and is vertically extended.

9. relay according to claim 5, which is characterized in that first permanent magnet (521) and second permanent magnetism The pole N and the pole S of iron (522) are arranged or horizontally disposed along the vertical direction.

10. relay according to claim 1, which is characterized in that the relay further includes being set in the transmission shaft (2) dynamic iron core (71) of lower end, and the outside of the dynamic iron core (71) is placed in for driving the dynamic iron core (71) to transport up and down Dynamic coil (72).