Relay

Abstract

The utility model relates to the technical field of electronic control devices, in particular to a relay which comprises a movable assembly and an auxiliary contact assembly, the auxiliary contact assembly comprises a first auxiliary movable spring and an auxiliary static spring, and the first auxiliary movable spring is installed in the relay; the first auxiliary movable spring comprises a first main body part, the first main body part has an extending direction, and at least one end of the first main body part is bent to form a contact section; the movable assembly can drive the first auxiliary movable spring to move so that the contact section can make contact with or be separated from the auxiliary static spring. The contact section is configured to be capable of making contact with the auxiliary static spring when the first auxiliary movable spring moves in multiple directions. As at least one end of the first main body part of the first auxiliary movable spring is bent to form the contact section, in the process that the movable assembly drives the first auxiliary movable spring to move, even if the first auxiliary movable spring moves in multiple directions, reliable contact between the contact section and the auxiliary static spring can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic control devices, in particular to a relay. Background Art

[0002] A relay is an electronic control device with a control circuit (also known as an input circuit) and a controlled system (also known as an output circuit). It is commonly used in automatic control circuits. A relay is essentially an "automatic switch" that uses a smaller current to control a larger one. Therefore, it plays a role in automatic regulation, safety protection, and circuit switching.

[0003] In the related art, relays are usually provided with auxiliary contact structures (such as integrated micro switches) to monitor the on / off status of the main contacts. However, the micro switches have large contact resistance and poor contact reliability. Utility Model Content

[0004] An embodiment of the utility model provides a relay to improve the contact reliability of an auxiliary contact structure.

[0005] The relay provided by the embodiment of the present utility model includes a moving assembly and an auxiliary contact assembly, the auxiliary contact assembly includes an auxiliary moving spring and an auxiliary static spring, the auxiliary moving spring includes a first auxiliary moving spring, and the first auxiliary moving spring is installed inside the relay; the first auxiliary moving spring includes a first main body portion, the first main body portion has an extension direction, and at least one end of the first main body portion is bent to form a contact segment; the moving assembly can drive the first auxiliary moving spring to move so that the contact segment contacts or separates from the auxiliary static spring; the contact segment is configured so that when the first auxiliary moving spring moves in multiple directions, the contact segment can contact the auxiliary static spring.

[0006] According to some embodiments of the present invention, a portion between the two ends of the first main body is bent to form a first transition section, and the first transition section is installed inside the relay.

[0007] According to some embodiments of the present invention, the auxiliary dynamic spring also includes a second auxiliary dynamic spring, which is connected to the first auxiliary dynamic spring, and a buffer space is provided between the second auxiliary dynamic spring and the first auxiliary dynamic spring so that the contact section and the second auxiliary dynamic spring can undergo elastic deformation respectively; the dynamic component can also drive the second auxiliary dynamic spring to move so that the second auxiliary dynamic spring contacts or separates from the auxiliary static spring.

[0008] According to some embodiments of the present invention, the second auxiliary dynamic spring includes a second main body portion, at least part of the buffer space is formed between the second main body portion and the first main body portion, and the second main body portion can contact or separate from the auxiliary static spring.

[0009] According to some embodiments of the present invention, a portion between the two ends of the second main body is bent to form a second transition section, and the second transition section is installed inside the relay.

[0010] According to some embodiments of the present invention, the end portion of the second main body is bent to form a bent section, the bent section is spaced apart from the contact section, and the bent section can contact or separate from the auxiliary static spring.

[0011] According to some embodiments of the present invention, the bending section is located on a side of the second main body portion close to the first main body portion, or the bending section is located on a side of the second main body portion away from the first main body portion.

[0012] According to some embodiments of the present invention, the bending section is located on a side of the contact section close to the first main body portion.

[0013] According to some embodiments of the present invention, the first main body and the second main body are spaced apart along a set direction, the contact section extends from the first main body toward the direction close to the second main body, and the bending section extends from the second main body toward the direction close to the first main body, wherein the set direction is perpendicular to the height direction and the length direction of the relay.

[0014] According to some embodiments of the present invention, the auxiliary static spring includes a first auxiliary static spring and a second auxiliary static spring;

[0015] Along the extension direction of the first main body, both ends of the first main body are bent to form the contact segments, and the contact segments formed at both ends of the first main body are respectively a first contact segment and a second contact segment;

[0016] The dynamic assembly is capable of driving the first auxiliary dynamic spring to move, so that the first contact segment and the second contact segment are respectively in contact with the first auxiliary static spring and the second auxiliary static spring, or the first contact segment and the second contact segment are respectively separated from the first auxiliary static spring and the second auxiliary static spring;

[0017] The dynamic assembly can also drive the second auxiliary dynamic spring to move, so that the second main body is in contact with the first auxiliary static spring and the second auxiliary static spring, or the second main body is separated from the first auxiliary static spring and the second auxiliary static spring.

[0018] According to some embodiments of the present invention, the extension direction of the second main body portion is consistent with the extension direction of the first main body portion; along the extension direction of the second main body portion, both ends of the second main body portion are bent to form bent sections, and the bent sections formed at both ends of the second main body portion are respectively a first bent section and a second bent section; the first bent section and the second bent section are both located between the first contact section and the second contact section;

[0019] The dynamic component can drive the second auxiliary dynamic spring to move, so that the first bending section and the second bending section are respectively in contact with the first auxiliary static spring and the second auxiliary static spring, or the first bending section and the second bending section are respectively separated from the first auxiliary static spring and the second auxiliary static spring.

[0020] According to some embodiments of the present invention, along the extension direction of the first main body, both ends of the first main body are bent to form the contact segments, and the contact segments formed at both ends of the first main body are respectively a first contact segment and a second contact segment;

[0021] The auxiliary static spring includes a first auxiliary static spring and a second auxiliary static spring. The dynamic component can drive the first auxiliary dynamic spring to move so that the first contact segment and the second contact segment are respectively in contact with the first auxiliary static spring and the second auxiliary static spring, or the first contact segment and the second contact segment are respectively separated from the first auxiliary static spring and the second auxiliary static spring.

[0022] According to some embodiments of the present invention, the auxiliary static spring and the contact section are spatially staggered.

[0023] According to some embodiments of the present invention, the auxiliary static spring is a rod-shaped structure, and the surface of the auxiliary static spring in contact with the contact section is an arc surface.

[0024] According to some embodiments of the present invention, the auxiliary contact assembly is a normally open contact assembly, or the auxiliary contact assembly is a normally closed contact assembly.

[0025] According to some embodiments of the present invention, the relay further comprises an active contact assembly, a main static contact assembly and a static iron core;

[0026] The moving assembly includes a push rod and a moving iron core; the push rod is provided with a fixed portion, and the first main body is installed on the fixed portion; the moving contact assembly is connected to one end of the push rod, and the moving iron core is connected to the other end of the push rod, and the moving iron core can be attracted or separated from the static iron core to close or disconnect the active contact assembly and the main static contact assembly, and to separate or contact the contact section from the auxiliary static spring.

[0027] According to some embodiments of the present invention, the relay further comprises a mounting seat, wherein the mounting seat is provided with a limiting groove;

[0028] The auxiliary static spring includes a fixed section, a portion of the fixed section is limited in the limiting groove, and a portion of the fixed section located outside the limiting groove can contact the contact section.

[0029] According to some embodiments of the present invention, the mounting seat is provided with a guide groove, the guide groove is connected to the limiting groove; the extension direction of the guide groove is perpendicular to the extension direction of the limiting groove; from the groove bottom to the groove mouth of the guide groove, the guide groove includes a first groove portion and a second groove portion, the first groove portion is connected to the second groove portion, and the width of the first groove portion is greater than the width of the second groove portion;

[0030] The auxiliary static spring also includes a lead-out section, which is integrally formed with the fixed section; the fixed section includes a round rod portion and a thinning portion, and along the width direction of the guide groove, the width of the thinning portion is smaller than the diameter of the lead-out section, and the width of the thinning portion is adapted to the width of the second groove portion so that the thinning portion can move along the extension direction of the second groove portion to the limiting groove, and the lead-out section is located in the first groove portion.

[0031] One embodiment of the above utility model has at least the following advantages or beneficial effects:

[0032] (1) In the relay provided by the embodiment of the present invention, since at least one end of the first main body of the first auxiliary dynamic spring is bent to form a contact segment, when the dynamic component drives the first auxiliary dynamic spring to move, even if the first auxiliary dynamic spring moves in multiple directions, it can ensure that the contact segment and the auxiliary static spring are in reliable contact.

[0033] (2) In the relay provided by the embodiment of the present invention, the portion between the two ends of the first main body is bent to form a first transition section, so as to increase the deformation capacity of the first main body, further improve the contact reliability, and reduce the risk of fatigue fracture of the first main body.

[0034] (3) In the relay provided by the embodiment of the present invention, the auxiliary dynamic spring also includes a second auxiliary dynamic spring. Since there is a buffer space between the second auxiliary dynamic spring and the first auxiliary dynamic spring, when the push rod drives the first auxiliary dynamic spring and the second auxiliary dynamic spring to move, the contact section and the second auxiliary dynamic spring can respectively undergo elastic deformation, and both the contact section and the second auxiliary dynamic spring can contact with the auxiliary static spring, thereby realizing multi-contact contact and higher reliability.

[0035] (4) In the relay provided by the embodiment of the present invention, the auxiliary static spring includes a first auxiliary static spring and a second auxiliary static spring; along the extension direction of the first main body, both ends of the first main body are bent to form contact segments, and the contact segments formed at both ends of the first main body are respectively the first contact segment and the second contact segment; the dynamic component can drive the first auxiliary dynamic spring to move, so that the first contact segment and the second contact segment respectively contact with the first auxiliary static spring and the second auxiliary static spring, or the first contact segment and the second contact segment respectively separate from the first auxiliary static spring and the second auxiliary static spring; the dynamic component can also drive the second auxiliary dynamic spring to move, so that the second main body contacts the first auxiliary static spring and the second auxiliary static spring, or the second main body separates from the first auxiliary static spring and the second auxiliary static spring. In this way, a bridge-type multi-contact parallel form can be formed, further improving contact reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The figure shows a schematic structural diagram of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0037] Figure 2 FIG2 shows another structural diagram of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0038] Figure 3 FIG. 1 is a schematic diagram showing a third structure of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0039] Figure 4 FIG. 4 is a schematic diagram showing a fourth structure of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0040] Figure 5 FIG. 5 shows a fifth structural diagram of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0041] Figure 6 FIG. 6 is a sixth structural diagram of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0042] Figure 7 FIG. 7 shows a seventh structural diagram of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0043] Figure 8 FIG. 8 is a schematic diagram showing an eighth structural embodiment of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0044] Figure 9 FIG. 1 shows a ninth structural diagram of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0045] Figure 10FIG. 1 is a schematic diagram showing a tenth structure of an auxiliary dynamic spring in a relay provided by an embodiment of the present utility model;

[0046] Figure 11 The figure shows the push rod and the relay provided by the embodiment of the present invention. Figure 10 A schematic diagram of the structure of the auxiliary dynamic spring shown;

[0047] Figure 12 FIG2 is a schematic diagram showing the deflection of the auxiliary dynamic spring in the relay provided by the embodiment of the present utility model in the XY plane;

[0048] Figure 13 Shown is Figure 12 A top view of the relay is shown;

[0049] Figure 14 The figure shows a schematic diagram of the auxiliary dynamic spring in the relay provided by the embodiment of the present utility model rotating a certain angle around a direction parallel to the X-axis;

[0050] Figure 15 Shown is Figure 14 A partial enlarged view of point Ⅰ in the middle;

[0051] Figure 16 The figure shows a schematic diagram of an auxiliary spring in a relay provided by an embodiment of the present utility model after overtravel;

[0052] Figure 17 Shown is Figure 16 A partial enlarged view of the middle II;

[0053] Figure 18 Shown is an exploded view of the auxiliary static spring and the mounting base;

[0054] Figure 19 The figure shows a schematic diagram of a portion of the lead-out section of the auxiliary static spring being inserted into the guide groove;

[0055] Figure 20 Shown is a schematic structural diagram of the auxiliary static spring.

[0056] The following are the descriptions of the reference numerals:

[0057] 10-first auxiliary dynamic spring; 11-first main body; 12-contact section; 12a-first contact section; 12b-second contact section; 13-first transition section; 14-connecting section; 20-second auxiliary dynamic spring; 21-second main body; 22-bending section; 22a-first bending section; 22b-second bending section; 23-second transition section; 30a-first auxiliary static spring; 31-fixing section; 311-round rod section; 312-thinning section; 32-lead-out section; 30b-second auxiliary static spring; 40-push rod; 41-fixing section; 50-mounting seat; 51-limiting groove; 521-first groove section; 522-second groove section; 60-active spring. DETAILED DESCRIPTION

[0058] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0059] See also Figures 1 to 20 As shown, this embodiment provides a relay, including a moving assembly and an auxiliary contact assembly, the auxiliary contact assembly including an auxiliary moving spring and an auxiliary static spring, the auxiliary moving spring including a first auxiliary moving spring 10, the first auxiliary moving spring 10 being installed inside the relay; the first auxiliary moving spring 10 including a first main body 11, the first main body 11 having an extension direction, at least one end of the first main body 11 being bent to form a contact segment 12; the moving assembly can drive the first auxiliary moving spring 10 to move so that the contact segment 12 contacts or separates from the auxiliary static spring; the contact segment 12 is configured so that when the first auxiliary moving spring 10 moves in multiple directions, the contact segment 12 can contact the auxiliary static spring.

[0060] In the relay provided by this embodiment, since at least one end of the first main body 11 of the first auxiliary dynamic spring 10 is bent to form a contact segment, when the dynamic component drives the first auxiliary dynamic spring 10 to move, even if the first auxiliary dynamic spring 10 moves in multiple directions, it is possible to ensure that the contact segment and the auxiliary static spring are in reliable contact.

[0061] In one embodiment, the auxiliary static spring may be a rod-shaped structure.

[0062] In other embodiments, the auxiliary static spring may also be a plate-shaped structure.

[0063] In some embodiments, the contact segment 12 may be in the shape of a flat plate. During the movement of the first auxiliary dynamic spring 10 , at least a portion of the projection of the auxiliary static spring in the plane where the contact segment is located is located within the contact segment.

[0064] In other embodiments, the contact section may be in the shape of a bent plate, such as an arc-shaped bent plate.

[0065] The rod-shaped auxiliary static spring and plate-shaped auxiliary dynamic spring used in this embodiment are lower in cost and smaller in size than the existing integrated micro switch.

[0066] In one embodiment, the relay further includes an active contact assembly, a main static contact assembly and a static iron core; the dynamic assembly includes a push rod 40 and a moving iron core, and the dynamic assembly includes a push rod 40 and a moving iron core; the push rod 40 is provided with a fixed portion 41, and the first main body 11 is installed on the fixed portion 41; the active contact assembly is connected to one end of the push rod 40, and the moving iron core is connected to the other end of the push rod 40, and the moving iron core can be attracted or separated from the static iron core to close or disconnect the active contact assembly and the main static contact assembly, and to separate or contact the contact section with the auxiliary static spring.

[0067] The active contact assembly includes an active spring 60, on which a moving contact can be provided. The main static contact assembly includes a static contact lead-out terminal, on which a static contact can be provided at one end of the static contact lead-out terminal facing the active spring.

[0068] In this embodiment, the auxiliary contact assembly is a normally closed contact assembly. When the relay is de-energized, the moving and stationary iron cores are separated, the moving and stationary contacts are disconnected, and the contact segment contacts the auxiliary static spring. When the relay is energized, the moving and stationary iron cores are attracted, the moving and stationary contacts are closed, and the contact segment contacts the auxiliary static spring.

[0069] In other embodiments, the auxiliary contact assembly can also be a normally open contact assembly. When the relay is not energized, the moving iron core and the stationary iron core are separated, the moving contact and the stationary contact are disconnected, and the contact segment and the auxiliary static spring are separated. When the relay is energized, the moving iron core and the stationary iron core are attracted, the moving contact and the stationary contact are closed, and the contact segment and the auxiliary static spring are in contact.

[0070] In this embodiment, the length direction of the relay is defined as the X-axis, the height direction of the relay is defined as the Z-axis, and the direction perpendicular to the X-axis and the Z-axis is defined as the Y-axis. Since the push rod 40 may tilt or rotate about its own axis during movement, the first auxiliary dynamic spring 10 may move in multiple directions while the push rod 40 drives the first auxiliary dynamic spring 10 to move along the Z-axis, thereby deviating from the Z-axis. For example, the first auxiliary dynamic spring 10 may deflect within the XY plane formed by the X-axis and the Y-axis. For another example, after the contact segment contacts the auxiliary static spring, in order to maintain close contact and continue to overtravel, the first auxiliary dynamic spring 10 may rotate by a certain angle about a direction parallel to the X-axis.

[0071] In the above cases, the contact section 12 can reliably contact the auxiliary static spring.

[0072] It should be understood that the height direction of the relay is related to the placement of the relay (such as vertical or horizontal), and the snapping direction of the first auxiliary dynamic spring 10 and the auxiliary static spring approaching each other is basically consistent with the height direction of the relay.

[0073] In some embodiments, the fixing portion 41 is integrally formed with the push rod 40. For example, the fixing portion 41 and the push rod 40 can both be made of plastic, and the fixing portion 41 and the push rod 40 are integrally formed by injection molding.

[0074] In one embodiment, a portion between two ends of the first main body 11 is bent to form a first transition section 13 , and the first transition section 13 is installed inside the relay.

[0075] In some embodiments, see Figure 2 As shown, the first transition section 13 is L-shaped and is mounted on the fixing portion 41. Exemplarily, the first transition section 13 includes a transverse section and a vertical section, and the transverse section can be fixedly connected to the fixing portion 41 by injection molding.

[0076] By providing the first transition section 13 , the deformation capacity of the first main body portion 11 can be increased, the contact reliability can be further improved, and the risk of fatigue fracture of the first main body portion 11 can be reduced.

[0077] Exemplarily, the width of the free end of the contact segment 12 is smaller than the width of the bend of the first transition segment 13 , thereby improving fatigue resistance and deformation capacity.

[0078] In one embodiment, the auxiliary dynamic spring also includes a second auxiliary dynamic spring 20, which is connected to the first auxiliary dynamic spring 10. There is a buffer space between the second auxiliary dynamic spring 20 and the first auxiliary dynamic spring 10, so that the contact section 12 and the second auxiliary dynamic spring 20 can undergo elastic deformation respectively; the dynamic component can also drive the second auxiliary dynamic spring 20 to move, so that the second auxiliary dynamic spring 20 contacts or separates from the auxiliary static spring.

[0079] Since there is a buffer space between the second auxiliary dynamic spring 20 and the first auxiliary dynamic spring 10, when the push rod 40 drives the first auxiliary dynamic spring 10 and the second auxiliary dynamic spring 20 to move, the contact section and the second auxiliary dynamic spring 20 can respectively undergo elastic deformation, and the contact section and the second auxiliary dynamic spring 20 can both contact the auxiliary static spring, realizing multi-point contact and higher reliability.

[0080] When the contact section and the auxiliary static spring are closed and then go through the overstroke process, due to the buffer space between the second auxiliary dynamic spring 20 and the first auxiliary dynamic spring 10, the contact section and the second auxiliary dynamic spring 20 form a parallel and independent force arm, the movement fulcrum of the contact section is the overlap point between the position of the contact section close to the end of the auxiliary static spring and the auxiliary static spring, and the movement fulcrum of the second auxiliary dynamic spring 20 is the overlap point between the position of the second auxiliary dynamic spring 20 close to the end of the auxiliary static spring and the auxiliary static spring, thereby effectively reducing the degree of deformation and warping, so that the contact section and the second auxiliary dynamic spring 20 can be in reliable contact with the auxiliary static spring.

[0081] In one embodiment, the second auxiliary dynamic spring 20 includes a second main body 21 , at least part of the buffer space is formed between the second main body 21 and the first main body 11 , and the second main body 21 can contact or separate from the auxiliary static spring.

[0082] For example, see Figure 3 As shown, the second main body portion 21 and the first main body portion 11 may have plate surfaces in the same plane.

[0083] The auxiliary contact assembly further includes a connecting section 14, through which the first body portion 11 and the second body portion 21 are connected, and buffer spaces are formed on both sides of the connecting section 14. Exemplarily, the first body portion 11, the second body portion 21 and the connecting section 14 are integrally formed.

[0084] In some embodiments, a portion between two ends of the second main body 21 is bent to form a second transition section 23 , and the second transition section 23 is installed inside the relay.

[0085] In this embodiment, the second transition section 23 is connected to the fixing portion 41. For example, the connecting section 14 is connected between the first transition section 13 and the second transition section 23. This facilitates assembly, that is, it is convenient to simultaneously injection mold the first transition section 13 and the second transition section 23 with the fixing portion 41.

[0086] See also Figure 10 and Figure 11 As shown, the first transition section 13 and the second transition section 23 are generally U-shaped and are both connected to the fixing portion 41 .

[0087] It should be noted that Figures 1 to 9 The auxiliary dynamic spring shown can also be connected to the fixing part.

[0088] In one embodiment, see Figure 4 As shown, the end of the second main body 21 is bent to form a bent section 22 . The bent section 22 is spaced apart from the contact section 12 . The bent section 22 can contact or separate from the auxiliary static spring.

[0089] When the relay is not powered on, the moving iron core and the static iron core are separated, and the moving contact and the static contact are disconnected. At this time, the contact section 12 is in contact with the auxiliary static spring, and the bent section 22 is in contact with the auxiliary static spring; when the relay is powered on, the moving iron core and the static iron core are attracted, and the moving contact and the static contact are closed. At this time, the contact section and the auxiliary static spring are separated, and the bent section and the auxiliary static spring are separated.

[0090] Since at least part of the buffer space is formed between the second main body portion 21 and the first main body portion 11, and the bending section 22 and the contact section 12 are spaced apart, the contact section and the bending section form a parallel and independent force arm, see Figure 17 As shown, the moving fulcrum of the contact segment 12 is the overlap point N between the position of the contact segment 12 close to the end of the auxiliary static spring and the auxiliary static spring, and the moving fulcrum of the bending segment 22 is the overlap point M between the position of the bending segment 22 close to the end of the auxiliary static spring and the auxiliary static spring, thereby effectively reducing the degree of deformation and warping, so that the contact segment and the bending segment can be in reliable contact with the auxiliary static spring.

[0091] In some embodiments, see Figure 4 As shown, the bending section 22 is located on the side of the second main body 21 close to the first main body 11. This approach can make the overall structure more compact, the root stress is more dispersed, and the risk of interference between the contact section and the bending section when they undergo elastic deformation is smaller.

[0092] In other embodiments, see Figure 5 As shown, the bending section 22 may also be located on a side of the second main body portion 21 away from the first main body portion 11 .

[0093] In one embodiment, see Figure 4 As shown, the bending section 22 is located on a side of the contact section 12 close to the first main body portion 11 .

[0094] Specifically, see Figure 17 As shown, the length of the first main body 11 is greater than that of the second main body 21. During the overtravel of the first auxiliary dynamic spring 10 and the second auxiliary dynamic spring 20, even if the bending section is tilted, it is highly likely that the contact section can maintain reliable contact with the auxiliary static spring.

[0095] In one embodiment, the first and second main bodies 11 and 21 are spaced apart along a predetermined direction, with the contact section extending from the first main body 11 toward the second main body 21, and the bend section extending from the second main body 21 toward the first main body 11. The predetermined direction is perpendicular to the height and length of the relay. This allows for a more compact first and second auxiliary dynamic springs 10 and 20, more dispersed root stress, and minimizes the risk of interference between the contact and bend sections during elastic deformation.

[0096] In one embodiment, see Figure 7 and Figure 19 As shown, the auxiliary static springs include a first auxiliary static spring 30a and a second auxiliary static spring 30b. Along the extension direction of the first main body 11, both ends of the first main body 11 are bent to form contact segments, namely a first contact segment 12a and a second contact segment 12b. The movable assembly can drive the first auxiliary dynamic spring 10 to move, causing the first contact segment 12a and the second contact segment 12b to contact or separate from the first and second auxiliary static springs 30a and 30b, respectively. The movable assembly can also drive the second auxiliary dynamic spring 20 to move, causing the second main body 21 to contact or separate from the first and second auxiliary static springs 30a and 30b. This creates a bridge-type multi-contact parallel connection, further improving contact reliability.

[0097] Exemplarily, the first auxiliary static spring 30a and the second auxiliary static spring 30b are both rod-shaped. When the relay is de-energized, the moving iron core and the static iron core are separated, and the moving contact and the static contact are disconnected. At this time, the first contact segment 12a contacts the first auxiliary static spring 30a, the second contact segment 12b contacts the second auxiliary static spring 30b, and the second main body 21 contacts the first and second auxiliary static springs 30a, 30b. When the relay is energized, the moving iron core and the static iron core are attracted, the moving iron core drives the push rod 40 to move, and the push rod 40 drives the active spring to move, closing the moving contact and the static contact. Simultaneously, the push rod 40 can also drive the first auxiliary dynamic spring 10 and the second auxiliary dynamic spring 20 to move, separating the first contact segment 12a from the first auxiliary static spring 30a, the second contact segment 12b from the second auxiliary static spring 30b, and the second main body 21 from the first and second auxiliary static springs 30a, 30b.

[0098] In one embodiment, see Figure 8 and Figure 19As shown, the second main body portion 21 extends in the same direction as the first main body portion 11. Along the extension direction of the second main body portion 21, both ends of the second main body portion 21 are bent to form a first bent section 22a and a second bent section 22b. The first bent section 22a and the second bent section 22b are located between the first contact section 12a and the second contact section 12b. The dynamic assembly can drive the second auxiliary dynamic spring 20 to move, causing the first bent section 22a and the second bent section 22b to contact or separate from the first auxiliary static spring 30a and the second auxiliary static spring 30b, respectively. This not only forms a bridge-type multi-contact parallel connection, further improving contact reliability, but also makes the overall structure more compact.

[0099] When the relay is not powered, the moving iron core and the static iron core are separated, and the moving contact and the static contact are disconnected. At this time, the first contact segment 12a contacts the first auxiliary static spring 30a, the second contact segment 12b contacts the second auxiliary static spring 30b, the first bent segment 22a contacts the first auxiliary static spring 30a, and the second bent segment 22b contacts the second auxiliary static spring 30b; when the relay is powered, the moving iron core and the static iron core are attracted, the moving iron core drives the push rod 40 to move, and the push rod 40 drives the active spring to move, so that the moving contact and the static contact are closed; at the same time, the push rod 40 can also drive the first auxiliary dynamic spring 10 and the second auxiliary dynamic spring 20 to move, so that the first contact segment 12a is separated from the first auxiliary static spring 30a, the second contact segment 12b is separated from the second auxiliary static spring 30b, the first bent segment 22a is separated from the first auxiliary static spring 30a, and the second bent segment 22b is separated from the second auxiliary static spring 30b.

[0100] In one embodiment, when the auxiliary dynamic spring does not include the second auxiliary dynamic spring, the bridge structure can also be formed by the first auxiliary dynamic spring 10. Figure 6 As shown, along the extension direction of the first main body 11, both ends of the first main body 11 are bent to form contact segments, and the contact segments formed at both ends of the first main body 11 are respectively a first contact segment 12a and a second contact segment 12b; the auxiliary static spring includes a first auxiliary static spring 30a and a second auxiliary static spring 30b, and the dynamic component can drive the first auxiliary dynamic spring 10 to move, so that the first contact segment 12a and the second contact segment 12b are respectively in contact with the first auxiliary static spring 30a and the second auxiliary static spring 30b, or the first contact segment 12a and the second contact segment 12b are respectively separated from the first auxiliary static spring 30a and the second auxiliary static spring 30b.

[0101] When the relay is not powered on, the moving iron core and the static iron core are separated, and the moving contact and the static contact are disconnected. At this time, the first contact segment 12a contacts the first auxiliary static spring 30a, and the second contact segment 12b contacts the second auxiliary static spring 30b; when the relay is powered on, the moving iron core and the static iron core are attracted, the moving iron core drives the push rod 40 to move, and the push rod 40 drives the active spring to move, so that the moving contact and the static contact are closed; at the same time, the push rod 40 can also drive the first auxiliary dynamic spring 10 to move, so that the first contact segment 12a is separated from the first auxiliary static spring 30a, and the second contact segment 12b is separated from the second auxiliary static spring 30b.

[0102] In one embodiment, the auxiliary static springs and the contact segments are spatially staggered.

[0103] Specifically, see Figure 13 As shown, taking the first auxiliary static spring 30a and the first contact segment 12a as an example, along the axial direction of the push rod 40, the first contact segment 12a is located above the first auxiliary static spring 30a, and the projections of the first contact segment 12a and the first auxiliary static spring 30a in the XY plane intersect. For example, the projections of the first contact segment 12a and the first auxiliary static spring 30a in the XY plane are substantially perpendicular. This is equivalent to increasing the contact area between the first contact segment 12a and the first auxiliary static spring 30a. When the first auxiliary dynamic spring 10 may deflect within the plane formed by the X-axis and the Y-axis, or when the contact segment contacts the auxiliary static spring and overtravels, the first auxiliary dynamic spring 10 rotates a certain angle around the direction parallel to the X-axis (such as Figure 14 and Figure 15 As shown), the contact sections can all make reliable contact with the auxiliary static springs.

[0104] In one embodiment, the auxiliary static spring is a rod-shaped structure, and the surface where the auxiliary static spring contacts the contact segment is an arc-shaped surface. This not only improves the contact reliability between the auxiliary static spring and the first auxiliary dynamic spring 10, but also ensures that the first auxiliary dynamic spring 10 maintains contact and conduction with the auxiliary static spring even when the first auxiliary dynamic spring 10 is rotated and offset by a certain angle.

[0105] In one embodiment, see Figures 18 to 20 As shown, the relay also includes a mounting base 50, which is provided with a limiting groove 51; the auxiliary static spring includes a fixed section 31, a part of the fixed section 31 is limited in the limiting groove 51, and the part of the fixed section 31 outside the limiting groove 51 can contact the contact section.

[0106] By limiting and fixing a part of the fixed section 31 in the limiting groove 51, it is ensured that the fixed section 31 can be stably located in the limiting groove 51 when in contact with the contact section, and is less likely to shake or shift, thereby ensuring that the contact section and the fixed section 31 can still be in reliable contact after multiple engagements.

[0107] In one embodiment, the mounting seat 50 is provided with a guide groove, which is connected to the limit groove 51; the extension direction of the guide groove is perpendicular to the extension direction of the limit groove 51; from the bottom of the guide groove to the groove mouth, the guide groove includes a first groove portion 521 and a second groove portion 522, the first groove portion 521 is connected to the second groove portion 522, and the width of the first groove portion 521 is greater than the width of the second groove portion 522; the auxiliary static spring also includes a lead-out section 32, and the lead-out section 32 is integrally formed with the fixed section 31; the fixed section 31 includes a round rod portion 311 and a thinning portion 312, along the width direction of the guide groove, the width of the thinning portion 312 is smaller than the diameter of the lead-out section 32, and the width of the thinning portion 312 is adapted to the width of the second groove portion 522, so that the thinning portion 312 can move along the extension direction of the second groove portion 522 to the limit groove 51, and the lead-out section 32 is located in the first groove portion 521.

[0108] For example, during assembly, Figure 18 Install the auxiliary static spring on the mounting base 50 from top to bottom in the direction indicated by arrow F. Specifically, insert the lead-out section 32 into the first slot 521 and move it along the first slot 521 until the fixed section 31 is positioned within the retaining slot 51. After assembly, the second slot 522 stops the lead-out section 32 within the first slot 521, preventing it from escaping from the second slot 522 along the X-axis. Furthermore, the thinned portion 312 is adapted to the width of the second slot 522, and the walls of the second slot 522 limit movement of the lead-out section 32 along the Y-axis.

[0109] Finally, it should be noted that: it is understandable that the various embodiments / implementations provided by the present invention can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0110] In the embodiments of the utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. For those skilled in the art, the specific meanings of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0111] In the description of the utility model embodiments, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model embodiments and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it cannot be understood as a limitation on the utility model embodiments.

[0112] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0113] The above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Those skilled in the art will readily appreciate that various modifications and variations of the utility model embodiments are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the utility model embodiments shall be included within the scope of protection of the utility model embodiments.

Claims

1. A relay, characterized in that: The auxiliary contact assembly includes a movable assembly and an auxiliary contact assembly, wherein the auxiliary contact assembly includes an auxiliary movable spring and an auxiliary static spring. The auxiliary movable spring includes a first auxiliary movable spring, which is installed inside the relay. The first auxiliary movable spring includes a first main body portion, the first main body portion has an extension direction, and at least one end of the first main body portion is bent to form a contact section. The dynamic component can drive the first auxiliary dynamic spring to move so that the contact segment contacts or separates from the auxiliary static spring; the contact segment is configured so that when the first auxiliary dynamic spring moves in multiple directions, the contact segment can contact the auxiliary static spring.

2. The relay according to claim 1, wherein: A portion between two ends of the first main body is bent to form a first transition section, and the first transition section is installed inside the relay.

3. The relay according to claim 1, wherein: The auxiliary dynamic spring also includes a second auxiliary dynamic spring, which is connected to the first auxiliary dynamic spring. A buffer space is provided between the second auxiliary dynamic spring and the first auxiliary dynamic spring so that the contact section and the second auxiliary dynamic spring can undergo elastic deformation respectively; the dynamic component can also drive the second auxiliary dynamic spring to move so that the second auxiliary dynamic spring contacts or separates from the auxiliary static spring.

4. The relay according to claim 3, characterized in that The second auxiliary dynamic spring includes a second main body portion. At least a portion of the buffer space is formed between the second main body portion and the first main body portion. The second main body portion can be in contact with or separated from the auxiliary static spring.

5. The relay according to claim 4, characterized in that A portion between two ends of the second main body is bent to form a second transition section, and the second transition section is installed inside the relay.

6. The relay according to claim 4, characterized in that An end portion of the second main body is bent to form a bent section, the bent section is spaced apart from the contact section, and the bent section can be in contact with or separated from the auxiliary static spring.

7. The relay according to claim 6, characterized in that The bending section is located on a side of the second main body portion close to the first main body portion, or the bending section is located on a side of the second main body portion away from the first main body portion.

8. The relay according to claim 6, characterized in that The bending section is located on a side of the contact section close to the first main body portion.

9. The relay according to claim 8, characterized in that The first main body portion and the second main body portion are spaced apart along a set direction, the contact section extends from the first main body portion toward the second main body portion, and the bending section extends from the second main body portion toward the first main body portion, wherein the set direction is perpendicular to the height direction and the length direction of the relay.

10. The relay according to any one of claims 4 to 9, characterized in that The auxiliary static spring includes a first auxiliary static spring and a second auxiliary static spring; Along the extension direction of the first main body, both ends of the first main body are bent to form the contact segments, and the contact segments formed at both ends of the first main body are respectively a first contact segment and a second contact segment; The dynamic assembly is capable of driving the first auxiliary dynamic spring to move, so that the first contact segment and the second contact segment are respectively in contact with the first auxiliary static spring and the second auxiliary static spring, or the first contact segment and the second contact segment are respectively separated from the first auxiliary static spring and the second auxiliary static spring; The dynamic assembly can also drive the second auxiliary dynamic spring to move, so that the second main body is in contact with the first auxiliary static spring and the second auxiliary static spring, or the second main body is separated from the first auxiliary static spring and the second auxiliary static spring.

11. The relay according to claim 10, characterized in that The second main body portion extends in the same direction as the first main body portion; along the extension direction of the second main body portion, both ends of the second main body portion are bent to form bent sections, the bent sections formed at both ends of the second main body portion being a first bent section and a second bent section respectively; the first bent section and the second bent section are both located between the first contact section and the second contact section; The dynamic component can drive the second auxiliary dynamic spring to move, so that the first bending section and the second bending section are respectively in contact with the first auxiliary static spring and the second auxiliary static spring, or the first bending section and the second bending section are respectively separated from the first auxiliary static spring and the second auxiliary static spring.

12. The relay according to claim 1, wherein: Along the extension direction of the first main body, both ends of the first main body are bent to form the contact segments, and the contact segments formed at both ends of the first main body are respectively a first contact segment and a second contact segment; The auxiliary static spring includes a first auxiliary static spring and a second auxiliary static spring. The dynamic component can drive the first auxiliary dynamic spring to move so that the first contact segment and the second contact segment are respectively in contact with the first auxiliary static spring and the second auxiliary static spring, or the first contact segment and the second contact segment are respectively separated from the first auxiliary static spring and the second auxiliary static spring.

13. The relay according to any one of claims 1 to 9 and 12, characterized in that: The auxiliary static spring and the contact section are spatially staggered.

14. The relay according to any one of claims 1 to 9 and 12, characterized in that: The auxiliary static spring is a rod-shaped structure, and the surface where the auxiliary static spring contacts the contact section is an arc surface.

15. The relay according to any one of claims 1 to 9 and 12, characterized in that: The auxiliary contact assembly is a normally open contact assembly, or the auxiliary contact assembly is a normally closed contact assembly.

16. The relay according to any one of claims 1 to 9 and 12, characterized in that: Also includes an active contact assembly, a main static contact assembly and a static iron core; The movable assembly includes a push rod and a movable iron core; the push rod is provided with a fixing portion, and the first main body is mounted on the fixing portion; The moving contact assembly is connected to one end of the push rod, and the moving iron core is connected to the other end of the push rod. The moving iron core can be attracted or separated from the static iron core to close or disconnect the active contact assembly and the main static contact assembly, and to separate or contact the contact section from the auxiliary static spring.

17. The relay according to any one of claims 1 to 9 and 12, characterized in that: The relay further comprises a mounting seat, wherein the mounting seat is provided with a limiting slot; The auxiliary static spring includes a fixed section, a portion of the fixed section is limited in the limiting groove, and a portion of the fixed section located outside the limiting groove can contact the contact section.

18. The relay according to claim 17, wherein: The mounting seat is provided with a guide groove, the guide groove is connected to the limiting groove; the extension direction of the guide groove is perpendicular to the extension direction of the limiting groove; from the groove bottom to the groove mouth, the guide groove includes a first groove portion and a second groove portion, the first groove portion is connected to the second groove portion, and the width of the first groove portion is greater than the width of the second groove portion; The auxiliary static spring also includes a lead-out section, which is integrally formed with the fixed section; the fixed section includes a round rod portion and a thinning portion, and along the width direction of the guide groove, the width of the thinning portion is smaller than the diameter of the lead-out section, and the width of the thinning portion is adapted to the width of the second groove portion so that the thinning portion can move along the extension direction of the second groove portion to the limiting groove, and the lead-out section is located in the first groove portion.

Images