CN217134288U - Relay and vehicle - Google Patents

Abstract

The utility model discloses a relay and vehicle, wherein, the relay includes: a stationary contact assembly; the mounting bracket is internally provided with a mounting cavity; the static magnetic yoke is fixedly arranged on one side of the mounting bracket close to the static contact assembly; the movable magnetic yoke is slidably arranged at one end of the mounting cavity close to the fixed contact assembly; the movable contact plate is arranged on the movable magnetic yoke and can be electrically contacted with the static contact component; the push rod assembly is used for driving the mounting bracket to move close to or away from the fixed contact assembly; and the elastic piece is arranged in the mounting cavity and elastically connects the mounting bracket with the static magnetic yoke and/or the movable contact plate in the moving direction of the mounting bracket. The utility model discloses technical scheme can provide a relay that the structure is simplified.

Description

Relay and vehicle

Technical Field

The utility model relates to a vehicle technical field, in particular to relay and vehicle.

Background

In the related art direct current relay, when the movable spring has a short-circuit current, the fixed upper yoke, the follower upper yoke and the lower armature can form a magnetic ring to attract each other, wherein the follower upper yoke is disposed on the first U-shaped bracket, and the fixed upper yoke is disposed on the second U-shaped bracket, however, the two U-shaped brackets are disposed to make the structure of the relay complicated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses embodiment provides a relay and vehicle.

The utility model discloses embodiment's relay includes:

a stationary contact assembly;

the mounting bracket is internally provided with a mounting cavity;

the static magnetic yoke is fixedly arranged on one side of the mounting bracket close to the static contact assembly;

the movable magnetic yoke is slidably arranged at one end of the mounting cavity close to the fixed contact assembly;

the movable contact plate is arranged on the movable magnetic yoke and can be electrically contacted with the static contact component;

the push rod assembly is used for driving the mounting bracket to move close to or away from the fixed contact assembly;

and the elastic piece is arranged in the mounting cavity and elastically connects the mounting bracket with the static magnetic yoke and/or the movable contact plate in the moving direction of the mounting bracket.

In the relay according to the above embodiment, the static magnetic yoke is fixedly arranged on the mounting bracket, and the moving magnetic yoke is slidably arranged on the mounting bracket, so that the use of the bracket can be reduced, and the structure of the relay can be simplified.

In some embodiments, the moving yoke is provided with a caulking groove having an opening facing the static yoke, and the moving contact plate is provided in the caulking groove; the movable magnetic yoke is provided with two protruding ends, and the mounting bracket is provided with two through holes for the two protruding ends to penetrate through and contact with the static magnetic yoke.

In some embodiments, at least one of the movable contact plate and the caulking groove wall surface is provided with a protruding structure.

In some embodiments, one of the moving yoke and the moving contact plate is provided with a mounting boss, and the other is provided with a mounting hole, and the mounting boss is inserted into the mounting hole.

In some embodiments, the static yoke is fixedly attached to the side of the mounting bracket adjacent to the static contact assembly by laser welding.

In some embodiments, the mounting bracket is connected to the pushrod assembly by an insulator.

In some embodiments, the mounting bracket includes an upper bracket and a lower bracket detachably connected to each other, the upper bracket is located on a side of the mounting bracket near the fixed contact assembly, and the lower bracket is located on a side of the mounting bracket near the push rod assembly.

In some embodiments, the relay further includes a housing having an accommodating space formed therein, the static contact assembly is connected to the housing, the mounting bracket is disposed in the accommodating space, and the housing is provided with a mounting through hole for the push rod assembly to penetrate through.

In some embodiments, the shell comprises an upper shell, a partition board and a lower shell connected with the upper shell through the partition board, the upper shell and the partition board enclose to form the accommodating space, an installation space is arranged in the lower shell, the installation through hole is located in the partition board, one part of the push rod assembly is arranged in the installation space, and the other part of the push rod assembly penetrates through the installation through hole and extends into the accommodating space to be in driving connection with the installation support.

In some embodiments, the putter assembly includes:

the static iron core is fixedly arranged on the shell, and a sliding through hole communicated with the accommodating space is formed in the static iron core;

the movable iron core is arranged in the mounting space in a sliding manner; and

the push rod penetrates through the sliding through hole in a sliding mode, one end of the push rod is connected with the mounting bracket, and the other end of the push rod is connected with the movable iron core.

The utility model discloses a vehicle of embodiment, including the relay of any preceding embodiment.

In the vehicle according to the above embodiment, the static yoke of the relay is fixedly attached to the mounting bracket, and the moving yoke is slidably attached to the mounting bracket, so that the number of brackets used can be reduced, and the structure of the relay can be simplified.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a relay according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the relay of FIG. 1 taken along C-C;

FIG. 3 is a cross-sectional view of the relay of FIG. 2 taken along D-D;

fig. 4 is a schematic view of a part of a relay according to an embodiment of the present invention;

FIG. 5 is a schematic view of a portion of the relay of FIG. 4 from another perspective;

fig. 6 is a partial structural sectional view of the relay in fig. 4;

fig. 7 is a cross-sectional view of the relay of fig. 6 at B-B;

fig. 8 is an exploded schematic view of a part of the structure of the relay in fig. 4;

fig. 9 is a schematic structural view of a static yoke and an upper bracket according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a static yoke and an upper bracket at another view angle according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a movable touch plate and a movable magnetic yoke according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another view angle of the movable contact plate and the movable yoke according to the embodiment of the present invention;

fig. 13 is a schematic structural view of a movable touch plate and a movable magnetic yoke at another view angle according to an embodiment of the present invention;

fig. 14 is a schematic view of the current and the magnetic field of the movable contact plate and the movable yoke according to the embodiment of the present invention.

The purpose of the present invention, its functional features and advantages will be further described with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 5 together, the present invention provides a relay 10.

In some embodiments of the present invention, the relay 10 includes:

a stationary contact assembly 110;

a mounting bracket 120 in which a mounting cavity 121 is formed;

a static magnetic yoke 130 fixedly installed at one side of the mounting bracket 120 close to the static contact component 110;

a moving yoke 140 slidably disposed at one end of the mounting cavity 121 near the fixed contact assembly 110;

a movable contact plate 150 disposed on the movable yoke 140 and capable of electrically contacting the fixed contact assembly 110;

a push bar assembly 160 for driving movement of the mounting bracket 120 toward or away from the fixed contact assembly 110;

and an elastic member 180 provided in the mounting cavity 121 to elastically connect the mounting bracket 120 with the static yoke 130 and/or the movable contact plate 150 in a moving direction of the mounting bracket 120.

In the relay 10 of the above embodiment, the static magnet 130 yoke is fixedly attached to the mounting bracket 120, and the moving magnet yoke 140 is slidably attached to the mounting bracket 120, so that the number of brackets used can be reduced, and the structure of the relay 10 can be simplified.

In the relay 10 of the above embodiment, the movable contact plate 150 can electrically contact with the fixed contact assembly 110 to form a path, when a short-circuit current sharply increased exists between the movable contact plate 150 and the fixed contact assembly 110, the short-circuit current causes the fixed contact assembly 110 and the movable contact plate 150 to generate a repulsive force (a holm force) with respect to each other, and simultaneously, the short-circuit current on the movable contact plate 150 generates a magnetic field to cause an attractive force between the movable yoke 140 and the fixed yoke 130, thereby preventing the movable contact plate 150 and the fixed contact assembly 110 from being separated by the holm force to generate an arc phenomenon, and thus avoiding the failure of the relay 10.

The fixed contact assembly 110 may be used to electrically connect a high-voltage line, and the fixed contact assembly 110 is provided with a fixed contact portion corresponding to the movable contact plate 150 to make a path of the high-voltage line with the movable contact plate 150. Alternatively, the fixed contact assembly 110 may be installed on a component disposed adjacent to the mounting bracket 120, and the installation position, the installation form, and the structural form of the fixed contact assembly 110 are adapted to the installation position, the installation form, and the structural form of the movable contact plate 150, and it should be noted that the installation form, and the structural form of the fixed contact assembly 110 are based on the electrical connection with the movable contact plate 150.

The mounting cavity 121 in the mounting bracket 120 may be used for mounting the moving yoke 140, the moving contact plate 150, and the elastic member 180, optionally, the structural form of the mounting cavity 121 is based on the mounting of the moving yoke 140, the moving contact plate 150, and the elastic member 180, the mounting cavity 121 has a structure that enables the moving yoke 140, the moving contact plate 150, and the elastic member 180 to be stably mounted, such as a cavity wall of the mounting cavity 121, and the like, and in addition, the mounting bracket 120 may have a through hole to communicate the mounting cavity 121 with an external space of the mounting bracket 120.

The static yoke 130 is fixedly installed at a side surface of the mounting bracket 120 adjacent to the fixed contact assembly 110, that is, the mounting bracket 120 has a mounting end surface adjacent to the fixed contact assembly 110, and the static yoke 130 is installed at a side surface of the mounting end surface facing away from the mounting cavity 121. The static yoke 130 can move synchronously with the mounting bracket 120. Alternatively, the static yoke 130 may have a flat plate shape, and the mounting end surface of the mounting bracket 120 adjacent to the static contact assembly 110 may have a flat surface shape so that the shape of the static yoke 130 is fitted to the shape of the mounting end surface. However, the present design is not limited to this, and the static yoke 130 and the mounting end face may be arranged in other shapes in other embodiments. Further alternatively, the static yoke 130 may be embedded in the mounting bracket 120, so that the volume of the static yoke 130 exposed to protrude from the mounting end face can be reduced. Still further, the static yoke 130 may be completely embedded in the mounting bracket 120 so that the static yoke 130 does not have a volume exposed to protrude from the mounting end face.

The moving yoke 140 is slidably disposed at one end of the mounting cavity 121 close to the fixed contact assembly 110, and an outer surface of the moving yoke 140 and a wall of the mounting cavity 121 are limited in a direction perpendicular to an extending direction of the mounting cavity 121, so that the moving yoke 140 can slide along the extending direction of the mounting cavity 121, where the sliding includes sliding of the moving yoke 140 close to or far from the fixed magnet yoke 130.

The movable contact plate 150 is connected with a high voltage line, and the movable contact plate 150 has a movable contact portion electrically contacted with the stationary contact portion of the stationary contact assembly 110, when the movable contact portion is electrically contacted with the stationary contact portion, the high voltage line connected with the movable contact plate 150 can be conducted with the high voltage line connected with the stationary contact portion, and when the movable contact portion is disconnected from the stationary contact portion, the high voltage line connected with the movable contact plate 150 can be disconnected with the high voltage line connected with the stationary contact portion. The movable contact plate 150 is disposed on the movable yoke 140, the movable contact plate 150 can move along with the movable yoke 140, the movable contact plate 150 approaches and contacts the fixed contact assembly 110, the high-voltage lines connected to the movable contact plate 150 can be connected, and conversely, the high-voltage lines connected to the movable contact plate 150 can be disconnected. The movable contact plate 150 is provided on the moving yoke 140 in such a manner that it can move following the moving yoke 140. Further, when the movable contact plate 150 and the movable yoke 140 move close to the stationary contact assembly 110 to a certain extent, the mounting cavity 121 has a wall surface to prevent the two from moving further.

The push rod assembly 160 is coupled to the mounting bracket 120, and the push rod assembly 160 can drive the mounting bracket 120 to move toward or away from the fixed contact assembly 110.

The elastic member 180 is disposed in the mounting cavity 121, and the elastic member 180 may elastically connect the mounting bracket 120 to the static yoke 130 and/or the movable contact plate 150 in a moving direction of the mounting bracket 120, and specifically, one end of the elastic member 180 may be connected to at least one of the static yoke 130 and the movable contact plate 150, and the other end may be connected to a cavity wall of the mounting cavity 121. Alternatively, one end of the elastic member 180 may be connected to at least one of the static yoke 130 and the movable contact plate 150, and the other end may be connected to the bottom wall of the mounting cavity 121, where it should be noted that the bottom wall of the mounting cavity 121 is a wall of the mounting cavity 121 facing away from the static yoke 130.

When the relay 10 is in the first state, the mounting bracket 120 is away from the fixed contact assembly 110, the movable contact plate 150 is not in contact with the fixed contact assembly 110, the elastic force of the elastic member 180 causes the movable contact plate 150 and/or the movable yoke 140 to abut against the wall surface of the mounting cavity 121 close to the static yoke 130, and the movable yoke 140 may contact the static yoke 130.

The push rod assembly 160 operates to move the mounting bracket 120 close to the fixed contact assembly 110, and simultaneously, the movable contact plate 150, the movable magnetic yoke 140 and the fixed magnetic yoke 130 move close to the fixed contact assembly 110 until the movable contact plate 150 contacts the fixed contact assembly 110, at this time, the relay 10 is in the second state, the high-voltage line connected to the movable contact plate 150 can be conducted with the high-voltage line connected to the fixed contact portion, and the movement of the movable contact plate 150 and the movable magnetic yoke 140 is stopped due to the limit of the fixed contact assembly 110.

The push rod assembly 160 may continue to operate, so that the mounting bracket 120 continues to move toward the side of the fixed contact assembly 110, and at this time, the relay 10 is in the third state, and since the moving yoke 140 has stopped the aforementioned movement, the static yoke 130 fixed to the mounting bracket 120 may continue to move, and a space may be formed between the static yoke 130 and the moving yoke 140, so that the static yoke 130 and the moving yoke 140 may not contact each other. It should be noted that the distance between the static magnetic yoke 130 and the moving magnetic yoke 140 is ultimately determined by the attraction between the two after being magnetized by the magnetic field generated by the short-circuit current of the contact plate 150, and the attraction between the two can prevent the contact plate 150 from separating from the static contact assembly 110.

When the relay 10 is in the second state or the third state, the high-voltage line connected to the movable contact plate 150 may be conducted with the high-voltage line connected to the stationary contact portion, if the high-voltage line fails, a short-circuit current sharply increased between the movable contact plate 150 and the stationary contact assembly 110 occurs, the short-circuit current generates a helm force between the movable contact plate 150 and the stationary contact assembly 110, and the helm force makes the movable contact plate 150 and the stationary contact have a tendency to move away from each other, but the short-circuit current on the movable contact plate 150 may magnetize the movable yoke 140 and the stationary yoke 130, so that a mutual attraction force is generated between the movable yoke 140 and the stationary yoke 130, and thus, the movable contact plate 150 and the stationary contact may be prevented from being separated, and the relay 10 may be prevented from failing. Therefore, the relay 10 of the present embodiment can realize the short-circuit prevention function.

In particular, the static yoke 130 is directly fixed to the mounting bracket 120, which can maintain a suitable distance with the moving yoke 140, and it is not necessary to add another bracket for its installation, thereby simplifying the structure of the relay 10.

Alternatively, in the embodiment shown in fig. 14, the magnetic field formed by the short-circuit current on the movable contact plate forms an induced current on the movable yoke, wherein the relationship between the direction of the induced current and the direction of the short-circuit current can be judged by the ampere rule; the induced current forms an induced magnetic field in the moving yoke, and further, an induced magnetic field can be formed in the static yoke, so that the moving yoke and the static yoke can attract each other.

Referring to fig. 6 to 8, in some embodiments, the moving yoke 140 is provided with a caulking groove 141, the caulking groove 141 is opened toward the static yoke 130, and the moving contact plate 150 is provided at the caulking groove 141; the moving yoke 140 has two protruding ends 142, and the mounting bracket 120 has two through holes for the two protruding ends 142 to pass through to contact with the static yoke 130.

In this way, the moving yoke 140 and the moving contact plate 150 can achieve the aforementioned mounting purpose (the moving yoke 140 and the moving contact plate 150 move together), and the moving yoke 140 can contact the static yoke 130 through the through-hole.

Specifically, the moving yoke 140 is opened toward the insertion groove 141 of the static yoke 130, the moving yoke 140 may be shaped in a U-shape, the protruding ends 142 of the moving yoke 140 may respectively pass through the through holes of the mounting bracket 120 so as to be in contact with the static yoke 130, and the moving yoke 140 and the static yoke 130 may form a closed magnetic ring to be attracted to each other. The movable contact plate 150 is disposed in the insertion groove 141, and specifically, the middle portion of the movable contact plate 150 is disposed in the insertion groove 141, and has wall surfaces respectively limited by the wall surfaces of the insertion groove 141 and the cavity wall of the installation cavity 121 of the installation bracket 120, so that the movable contact plate 150 is stably installed.

Further, both ends of the movable contact plate 150 may extend to an external space of the mounting bracket 120 through openings on the mounting bracket 120 to be contactable with the fixed contact assembly 110. Alternatively, the fixed contact assembly 110 has two fixed contact portions, and the two ends of the movable contact plate 150 have one movable contact portion respectively, and the two fixed contact portions can be electrically contacted with the two movable contact portions respectively; the two static contact parts can be respectively connected with the live wire and the zero wire of the high-voltage line, and similarly, the two movable contact parts can be respectively connected with the live wire and the zero wire of the high-voltage line, when the static contact parts are electrically contacted with the movable contact parts, the high-voltage line connected with the movable contact plate 150 can be conducted with the high-voltage line connected with the static contact component 110.

Referring to fig. 2 and 11, in some embodiments, at least one of the movable contact plate 150 and the wall surface of the insertion groove 141 is provided with a protrusion structure 151.

In this way, the contact surface between the movable contact plate 150 and the movable yoke 140 can be reduced, so that the offset of the short-circuit current on the movable contact plate 150 to the induced current on the movable yoke 140 is reduced, and the magnetic force of the movable yoke 140 is enhanced.

Specifically, when short-circuit current occurs on the moving contact plate 150, an induced magnetic field may occur at the moving contact plate 150 accessory, the induced magnetic field may cause induced current to occur in the moving yoke 140 and the static yoke 130, and the induced current may cause the moving yoke 140 and the static yoke 130 to generate magnetic force attracting each other. Further, the outer surface of the movable contact plate 150 facing the wall surface of the insertion groove 141 is provided with a protruding structure 151; or, the position of the wall surface of the caulking groove 141 facing the movable contact plate 150 is provided with a convex structure 151; alternatively, the outer surface of the movable contact plate 150 facing the wall surface of the insertion groove 141 and the position of the wall surface of the insertion groove 141 facing the movable contact plate 150 are provided with the protrusion structures 151.

Alternatively, the protrusion 151 may be, but is not limited to, a rib or a boss, and it is understood that the rib and boss structures have the advantages of simple structure and easy processing.

Further alternatively, the movable contact plate 150 and the movable yoke 140 may be configured with different types of conductive materials to reduce the induced current on the movable contact plate 150 that is affected by the short circuit current on the movable yoke 140 through the contact surface.

Referring to fig. 7, in some embodiments, one of the moving yoke 140 and the moving contact plate 150 is provided with a mounting boss 152, and the other is provided with a mounting hole 153, and the mounting boss 152 is inserted into the mounting hole 153.

Thus, the contact plate 150 can be stably connected with the moving yoke 140 by the mutual spacing of the mounting boss 152 and the mounting hole 153.

Specifically, the moving yoke 140 is provided with a mounting boss 152, the moving contact plate 150 is provided with a mounting hole 153, and the mounting boss 152 is inserted into the mounting hole 153; or, the moving contact plate 150 is provided with a mounting boss 152, the moving yoke 140 is provided with a mounting hole 153, and the mounting boss 152 is inserted into the mounting hole 153. It should be noted that the installation position and the structural form of the installation hole 153 are both adapted to the installation position and the structural form of the installation stud 152. Further, the mounting hole 153 and the mounting boss 152 may be respectively disposed on the bottom side of the movable contact plate 150 or the bottom wall of the insertion groove 141, and it should be noted that the bottom side of the movable contact plate 150 is the side of the movable contact plate 150 facing away from the static yoke 130. However, the design is not limited thereto, and in other embodiments, the mounting hole 153 and the mounting boss 152 may be disposed at other positions corresponding to each other, so as to allow the movable contact plate 150 to be stably connected with the movable yoke 140.

In some embodiments, the static magnetic yoke 130 is fixedly mounted on the side of the mounting bracket 120 close to the static contact component 110 by laser welding.

In this way, the static yoke 130 can be more stably mounted on the mounting bracket 120 by the welding.

It will be appreciated that laser welding has at least the following advantages: the welding speed is fast, the depth is big, the deformation is little, can weld under room temperature or special condition, and welding equipment device is simple, can carry out the welding in vacuum, air and certain gas environment. However, the design is not limited thereto, and in other embodiments, the static magnetic yoke 130 may be fixedly disposed on the side of the mounting bracket 120 close to the static contact component 110 in other connection manners.

Referring to fig. 2, 3, and 6-8, in some embodiments, the mounting bracket 120 is connected to the push rod assembly 160 via an insulator 122.

Thus, when the moving contact plate 150 generates a short-circuit current, the short-circuit current can be prevented from affecting the push rod assembly 160 and other parts.

Specifically, the bottom wall of the mounting cavity 121 is provided with a through hole communicating with the mounting cavity 121 inside the mounting bracket 120, the push rod assembly 160 is inserted into the through hole, and an insulating member 122 is arranged between the push rod assembly 160 and the hole edge of the through hole to isolate the push rod assembly 160 from the mounting bracket 120. The insulating member 122 is connected to one end of the elastic member 180. It can be understood that the through hole is located at the bottom of the mounting bracket 120, the insulating member 122 is installed in the through hole, and the upper end and the lower end of the insulating member 122 are respectively connected to the elastic member 180 and the push rod assembly 160, and the insulating member 122 insulates and connects the push rod assembly 160 with the mounting bracket 120 and the elastic member 180, so as to prevent the current on the movable contact plate 150 from being transmitted to the push rod assembly 160 through the elastic member 180 and/or the mounting bracket 120, and further, from damaging the low-voltage circuit connected to the push rod assembly 160.

Further, the insulator 122 is mounted on the bottom wall of the mounting cavity 121 (the end wall far from the static yoke 130), and the movable contact plate 150 and the movable yoke 140 are mounted on the end of the mounting cavity 121 close to the static yoke 130, so that the distance between the movable contact plate 150 and the insulator 122 can be increased, and further, when the temperature of the movable contact plate 150 is increased during short circuit, damage to the insulator 122 due to excessive temperature can be avoided, and the short circuit resistance of the relay 10 can be further improved.

In some embodiments, the push rod assembly 160 is connected to the mounting bracket 120 through an injection molding process, so that a plastic exists between the push rod assembly 160 and the mounting bracket 120, and the plastic has an insulating property, so that the mounting bracket 120 and the push rod assembly 160 are insulated from each other, thereby achieving the above-mentioned beneficial effect of improving the short circuit resistance of the relay 10.

Referring to fig. 6 to 8, in some embodiments, the mounting bracket 120 includes an upper bracket 123 and a lower bracket 124 detachably connected to each other, the upper bracket 123 is located on a side of the mounting bracket 120 close to the stationary contact assembly 110, and the lower bracket 124 is located on a side of the mounting bracket 120 close to the push rod assembly 160.

Thus, the mounting bracket 120 can be conveniently disassembled and assembled, and the parts in the mounting cavity 121 inside the mounting bracket 120 can be conveniently disassembled and assembled.

Specifically, the mounting bracket 120 includes an upper bracket 123 and a lower bracket 124; the upper bracket 123 is provided with a first clamping portion, the lower bracket 124 is provided with a second clamping portion, and the upper bracket 123 is connected with the lower bracket 124 through the second clamping portion and the first clamping portion. Alternatively, the upper bracket 123 and the lower bracket 124 may each have a U-shaped structure. In an alternative embodiment, the first engaging portion is an engaging arm, the second engaging portion is an engaging groove, and the upper bracket 123 is connected to the lower bracket 124 through the engaging arm engaging in the engaging groove. In another alternative embodiment, the first engaging portion is an engaging groove, the second engaging portion is an engaging arm, and the upper bracket 123 is connected to the lower bracket 124 through the engaging arm engaged with the engaging groove. In this embodiment, the upper bracket 123 is connected to the lower bracket 124 through the second clamping portion and the first clamping portion, so that the convenience of assembling and disassembling the mounting bracket 120 can be improved, and the manufacturing cost of the relay 10 can be reduced. However, the design is not limited thereto, and in other embodiments, the upper support 123 and the lower support 124 may be detachably linked by other connection methods, including but not limited to screw locking, clamping and the like.

Referring to fig. 2 and 3, in some embodiments, the relay 10 further includes a housing 170 having a receiving space 171 formed therein, the fixed contact assembly 110 is connected to the housing 170, the mounting bracket 120 is disposed in the receiving space 171, and the housing 170 is provided with a mounting through hole 172 for the push rod assembly 160 to pass through.

It can be understood that the housing 170 can provide protection for the components disposed in the accommodating space 171, prevent the components from being interfered by the outside, improve the stability of the relay 10, and prolong the service life of the relay 10.

Specifically, the relay 10 further includes a housing 170 having a receiving space 171 formed therein, the stationary contact assembly 110 is mounted on the housing 170, and the stationary contact assembly 110 includes a stationary contact portion extending into the receiving space 171 and disposed opposite to the movable contact portion. One end of the fixed contact assembly 110 extends to the external space of the housing 170, the other end (the end where the fixed contact portion is located) is located in the accommodating space 171, and the mounting bracket 120, the movable contact plate 150, the movable yoke 140, the static yoke 130, the elastic member 180, and other components are located in the accommodating space 171.

It can be understood that the housing 170 is provided to protect the movable contact plate 150, the movable yoke 140, and the static yoke 130, so that interference of the external environment with the movable contact plate 150, the movable yoke 140, and the static yoke 130 can be prevented, the stability of the relay 10 can be improved, and the lifespan of the relay 10 can be extended.

Referring to fig. 1 to 3, in some embodiments, the housing 170 includes an upper housing 173, a partition 174, and a lower housing 175 connected to the upper housing 173 through the partition 174, the upper housing 173 and the partition 174 enclose the accommodating space 171, a mounting space 1750 is provided in the lower housing 175, the mounting through hole 172 is located in the partition 174, a portion of the push rod assembly 160 is disposed in the mounting space 1750, and another portion of the push rod assembly passes through the mounting through hole 172 and extends into the accommodating space 171 to be drivingly connected to the mounting bracket 120.

In this way, the modular assembly of the housing 170 can be achieved, and the components connected to the high voltage line can be separated from the components connected to the low voltage line.

Specifically, the accommodating space 171 is enclosed by the upper case 173 and the partition 174; an installation space 1750 is provided in the lower case 175, and the upper part of the installation space 1750 is surrounded by the partition plate 174 and its additional structure, so that the modular assembly of the housing 170 can be realized. Further, a part of the push rod assembly 160 is disposed in the mounting space 1750, and another part of the push rod assembly passes through the mounting through hole 172 and extends into the accommodating space 171 to be drivingly connected to the mounting bracket 120. The power function of the push rod assembly 160 is connected to a low voltage line and is located in the lower housing 175 and is separated from the components of the upper housing 173 to which the high voltage line is connected by the partition 174, which ensures that the power function of the push rod assembly 160 is not affected by high voltage current.

Referring to fig. 2 and 3, in some embodiments, the push rod assembly 160 includes:

a stationary core 161 fixedly disposed on the housing 170, wherein a sliding through hole 1610 communicating with the accommodating space 171 is disposed in the stationary core 161; a movable iron core 162 slidably disposed in the installation space 1750; and

the push rod 163 is slidably inserted into the sliding through hole 1610, one end of the push rod 163 is connected to the mounting bracket 120, and the other end is connected to the movable iron core 162.

In this manner, the purpose of the drive mounting bracket 120 and other associated components of the push rod assembly 160 may be achieved.

Specifically, the stationary core 161 is fixedly mounted on the partition 174 by, but not limited to, screw locking, bonding, welding, interference connection, and the like.

The stationary iron core 161 is provided with a sliding through hole 1610 communicating with the accommodating space 171, the push rod 163 slidably penetrates through the sliding through hole 1610, and one end of the push rod 163 is drivingly connected with the mounting bracket 120, and the other end is fixedly connected with the movable iron core 162. When the movable iron core 162 and the stationary iron core 161 are both energized (the movable iron core 162 and the stationary iron core 161 are both connected to low voltage electricity), magnetic force is generated between the movable iron core 162 and the stationary iron core 161 (the magnetic force may be repulsive force or attractive force, and further may push the push rod 163 to move up according to the attractive force or drive the push rod 163 to move down according to the repulsive force), and since the stationary iron core 161 is fixed on the housing 170, the magnetic force will drive the movable iron core 162 to move, and the movable iron core 162 will drive the push rod 163 to move up or down, so that the technical effect that the push rod assembly 160 drives the mounting bracket 120 to move towards or away from the stationary contact assembly 110 can be achieved.

Optionally, in some embodiments, the elastic member 180 may be configured as a spring 181. In other embodiments, the elastic member 180 may be configured as other elastic components or other elastic structures.

Further alternatively, the static magnetic yoke 130 may be made of DT4C (pure iron), the spring 181, the movable magnetic yoke 140, the upper bracket 123, and the lower bracket 124 may be made of SUS304(304 stainless steel), the movable contact plate 150, and the stationary contact portion may be made of TU1 (oxygen-free copper). In other embodiments, the material of the static yoke 130, the material of the spring 181, the material of the moving yoke 140, the material of the upper bracket 123, the material of the lower bracket 124, the material of the moving contact plate 150, and the material of the stationary contact portion may be configured in other types.

The embodiment of the utility model provides a vehicle is still provided, its relay that includes any one of the above-mentioned embodiments.

In the vehicle, the static magnetic yoke of the relay is fixedly arranged on the mounting bracket, and the movable magnetic yoke is slidably arranged on the mounting bracket, so that the use of the bracket can be reduced, and the structure of the relay is simplified.

Further, when a circuit connected with the relay generates a sharp short-circuit current, the relay can avoid the circuit connected with the relay from being broken through the matching of the movable magnetic yoke and the static magnetic yoke.

The above explanation of the embodiment and the advantageous effects of the relay is also applicable to the vehicle according to the present embodiment, and is not detailed here to avoid redundancy.

Specifically, the vehicle may include, but is not limited to, a pure electric vehicle, a hybrid vehicle, an extended range electric vehicle, a fuel vehicle, and the like.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A relay, comprising:

a stationary contact assembly;

the mounting bracket is internally provided with a mounting cavity;

the static magnetic yoke is fixedly arranged on one side of the mounting bracket close to the static contact assembly;

the movable magnetic yoke is slidably arranged at one end of the mounting cavity close to the fixed contact assembly;

the movable contact plate is arranged on the movable magnetic yoke and can be electrically contacted with the static contact component;

the push rod assembly is used for driving the mounting bracket to move close to or away from the fixed contact assembly;

and the elastic piece is arranged in the mounting cavity and elastically connects the mounting bracket with the static magnetic yoke and/or the movable contact plate in the moving direction of the mounting bracket.

2. The relay according to claim 1, wherein the moving yoke is provided with a caulking groove having an opening facing the static yoke, and the moving contact plate is provided in the caulking groove; the movable magnetic yoke is provided with two protruding ends, and the mounting bracket is provided with two through holes for the two protruding ends to penetrate through and contact with the static magnetic yoke.

3. The relay according to claim 2, wherein at least one of said movable contact plate and said caulking groove wall surface is provided with a protruding structure.

4. The relay according to claim 2, wherein one of the moving yoke and the moving contact plate is provided with a mounting boss, and the other is provided with a mounting hole, the mounting boss being inserted into the mounting hole.

5. The relay according to claim 1, wherein said static yoke is fixedly secured to a side of said mounting bracket adjacent to said static contact assembly by laser welding.

6. The relay according to claim 1, wherein the mounting bracket is connected to the push rod assembly by an insulator.

7. The relay according to claim 1, wherein the mounting bracket comprises an upper bracket and a lower bracket detachably connected to each other, the upper bracket being located on a side of the mounting bracket adjacent to the stationary contact assembly, and the lower bracket being located on a side of the mounting bracket adjacent to the push rod assembly.

8. The relay according to any one of claims 1 to 7, further comprising a housing having an accommodating space formed therein, wherein the static contact assembly is connected to the housing, the mounting bracket is disposed in the accommodating space, and the housing is provided with a mounting through hole for the push rod assembly to pass through.

9. The relay according to claim 8, wherein the housing comprises an upper housing, a partition, and a lower housing connected to the upper housing through the partition, the upper housing and the partition enclose the accommodating space, an installation space is provided in the lower housing, the installation through hole is located in the partition, one part of the push rod assembly is disposed in the installation space, and the other part of the push rod assembly passes through the installation through hole and extends into the accommodating space to be connected to the installation bracket in a driving manner.

10. The relay according to claim 9, wherein the push rod assembly comprises:

the static iron core is fixedly arranged on the shell, and a sliding through hole communicated with the accommodating space is formed in the static iron core;

the movable iron core is arranged in the mounting space in a sliding manner; and

the push rod penetrates through the sliding through hole in a sliding mode, one end of the push rod is connected with the mounting bracket, and the other end of the push rod is connected with the movable iron core.

11. A vehicle, characterized by comprising a relay according to any one of claims 1 to 10.

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