Driving part and relay

Abstract

The invention discloses a driving part and a relay, the driving part is used for driving a rotating piece of a pushing part of the relay to rotate around a first axis so as to change the state of a contact part of the relay, and the driving part comprises a motor; the transmission mechanism is driven by the motor and comprises at least two driving output ends; and each driving output end is correspondingly connected with one rotating piece so as to drive the corresponding rotating piece to rotate. By adopting the technical scheme, the problems of overlarge size, easiness in failure and short service life of a structure taking a motor as a part of a driving part can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and in particular to a driving part and a relay. Background Art

[0002] Relays in the prior art are generally used to receive excitation or signals from an external circuit to control the on / off state of the external circuit or one of its branches. Relays generally include a driving portion, a propulsion portion, and a contact portion. The driving portion receives excitation or signals from the external circuit to drive the propulsion portion. The driving portion generally includes a coil assembly and an armature assembly. The coil assembly drives the armature assembly between two positions based on different signals or excitations. The contact portion generally includes a moving contact and a stationary contact. The propulsion portion is generally driven by the armature assembly and connects to the moving contact, pushing the moving contact and the stationary contact into contact.

[0003] Currently, some relays use motors as their driving source. This structure provides controllable output torque and precise travel control, with smooth operation and minimal pull-in shock. However, relays using this structure often suffer from excessive bulk, limited applications, and a short service life when used to drive multiple switch groups. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and provide a driving part and a relay, which can improve the problems of excessive size, easy failure and short life in the relay with a motor as part of the driving part.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A driving part is used to drive the rotating member of the pushing part of the relay to rotate around a first axis to change the state of the contact part of the relay. The driving part includes: a motor; and a transmission mechanism, which is driven by the motor and includes at least two driving output terminals; each of the driving output terminals is respectively connected to a corresponding rotating member to drive the corresponding rotating member to rotate.

[0007] After research, the applicant found that the reason why "using a motor as part of the driving part in the prior art will cause the relay to be too large, prone to failure and short life" is at least partly because the driving part is usually driven by a rotating part to arrange multiple switch groups in sequence along a preset direction. For this reason, it is necessary to extend the length of the output end of the driving part or the rotating part connected to the output end. In order to maintain the smooth rotation of the output end of the driving part or the rotating part, the relay housing structure needs to be designed with a corresponding support structure. As a result, the overall size of the relay needs to be larger than the total size of each switch group corresponding to the arrangement direction, resulting in an excessively large size, which is not conducive to the compact and miniaturized design of the relay; and because the long extension of the output end of the driving part or the rotating part is prone to uneven force and deformation, the movement of the rotating part is prone to jamming after long-term use, resulting in a limited service life of the relay.

[0008] Since this driving part adopts two independent driving output ends, different driving output ends are used to output power to different pushing parts respectively. Compared with the method of having the same driving output end drive a rotating part and drive all the moving contacts of the switch at the same time, the length of the rotating part can be made smaller, avoiding the need to use a single and slender rotating part or the driving component connected thereto, thereby significantly reducing the risk of deformation or vibration caused by excessive component size or uneven force, improving the reliability of the drive and the stability of the mechanical structure, ensuring that the transmission of mechanical motion is not prone to failure, and protecting the service life of the relay; at the same time, since the size of the rotating part can be designed to be shorter, the rotating part can be directly supported by the driving output end without the need to set up an additional supporting structure on the housing structure of the relay, thereby reducing the volume occupancy, making the arrangement of the internal structure of the relay more compact, and promoting the miniaturization of the overall structure of the relay.

[0009] In at least one embodiment, the transmission mechanism includes two driving output ends, the output directions of the two driving output ends are opposite to each other along the first direction, and the two driving output ends are staggered in a second direction; the second direction is perpendicular to the first direction.

[0010] Since the two drive output terminals are staggered in the second direction perpendicular to the first direction, the pushing parts corresponding to the two drive output terminals can also be staggered in the second direction, avoiding the problem that the two pushing parts need to avoid each other and require a larger installation space due to the two drive output terminals being arranged on the same side in the second direction; and since the output directions of the two drive output terminals are in opposite directions along the first direction, the two pushing parts corresponding to the two drive output terminals are arranged in the first direction, which reasonably utilizes the space in the first direction to arrange the two pushing parts and avoids the need to occupy too much space in the second direction. In addition, this arrangement is also conducive to reducing the space occupied by the two pushing parts in the first direction as much as possible by reducing the distance between the two drive output terminals along the first direction, so that the size of the entire relay in the first and second directions can be reduced as much as possible and meet the design requirements of miniaturization.

[0011] In at least one embodiment, on a projection plane perpendicular to the first direction, at least a portion of the motor projection is located between the projections of the two drive output ends, and is close to the two drive output ends along the first direction and avoids the output-pointing sides of the two drive output ends.

[0012] Since the projection of the motor on the projection plane perpendicular to the first direction is at least partially located between the projections of the two drive output terminals, the installation of the motor will not exceed the range of the two drive output terminals along the second direction, so as to further ensure that space in the second direction is saved. Since the motor is arranged close to the two drive output terminals along the first direction, the occupied space in the first direction can be well controlled, and the installation of the motor in the first direction makes good use of the space in the first direction formed by the need to set up the pushing part outside the drive output terminal, thereby realizing reasonable use of space and compact arrangement. Since the motor is installed away from the output-pointing side of the two drive output terminals, more activity space is freed up for the pushing part outside the drive output terminal, avoiding motion interference.

[0013] In at least one embodiment, the motor is located on one side of one of the drive output ends along the second direction, and is located on a side of the other drive output end facing away from the output direction along the first direction.

[0014] Since the two drive output ends are arranged along the second direction, and the motor is located on one side of one of the drive output ends along the second direction and on the side of the other drive output end along the first direction opposite to the output direction, this layout allows the motor to be cleverly arranged in the empty space jointly defined by the two drive output ends and the two drive parts in the first direction and the second direction, avoiding motion interference between the motor and the drive output ends or the transmission mechanism in the main spatial dimension, further improving the internal space utilization of the drive part and even the entire relay, and helping to achieve a compact design.

[0015] Based on the perpendicular relationship between the second direction and the first direction, the relative position relationship between the two drive output ends and the motor presents a more regular orthogonal layout feature on the basis of the staggered layout of the drive output ends. This clear 90-degree spatial relationship makes the positioning reference of each component clear, reduces the uncertainty in design and manufacturing, and helps to simplify the gear transmission design inside the transmission mechanism. For example, a more direct straight tooth meshing method can be adopted, reducing the complex intermediate transmission or non-standard gears that may be required to adapt to any angle, thereby reducing the transmission level, achieving more efficient power transmission and reducing transmission errors; at the same time, this orthogonal layout makes the connection between the drive output end and the rotating part it drives more standard and symmetrical, which is conducive to ensuring the accuracy and consistency of the driving force transmission, and also facilitates the manufacture, assembly and calibration of components.

[0016] In at least one embodiment, the transmission mechanism includes two output gears; the two output gears are arranged at intervals along the second direction, and their rotation axes are parallel to the first direction; the two driving output ends are coaxially connected to the opposite sides of the two output gears along the first direction.

[0017] Since the two output gears for connecting the drive output ends are arranged along the second direction, it is beneficial for the transmission mechanism to utilize the space located between the two drive output ends in the first direction and extending along the second direction to reasonably arrange the gear set and transmit reliable torque to the two drive output ends.

[0018] In at least one embodiment, the transmission mechanism includes a first reduction assembly and a second reduction assembly consisting of a plurality of mutually meshing gears, and the first reduction assembly and the second reduction assembly are both driven by the motor and transmit torque to the two drive output ends respectively.

[0019] Since the transmission mechanism includes a first reduction assembly and a second reduction assembly composed of a plurality of mutually meshing gears based on the staggered layout of the drive output ends, and both are driven by a motor and transmit torque to the two drive output ends respectively, the design of the dual independent reduction assemblies allows independent parameterized design and optimization of the respective reduction assemblies according to the load characteristics driven by each drive output end (such as the required torque, speed, motion smoothness, etc.). For example, a component with a larger reduction ratio can be configured for the path with a larger load, and a component with a smaller reduction ratio can be configured for the path with a smaller load, so that the load can be distributed more evenly to the motor, avoiding the motor from being overloaded due to a single drive and excessively high comprehensive load, or sacrificing the performance of a certain path due to adapting to different loads.

[0020] In at least one embodiment, the transmission mechanism includes a first gear set and two second gear sets that are directly or indirectly engaged with the first gear set. The first gear set is directly or indirectly driven by the motor, and the two second gear sets respectively transmit torque to the two drive output ends.

[0021] Based on the staggered layout of the drive output ends, the transmission mechanism includes a first gear set directly driven by the motor and two second gear sets directly or indirectly meshed with the first gear set. The two second gear sets transmit torque to the two drive output ends respectively. This single-input (motor drives the first gear set) and dual-output (two second gear sets output respectively) gear distribution structure simplifies the transmission path from the motor to the two output ends through a common first gear set as the power distribution point. Compared with two completely independent complex transmission chains, its structure is more compact and the transmission chain is shorter, thereby reducing energy loss and cumulative errors in the intermediate links. The transmission efficiency is higher, and the power of the motor can be reliably and synchronously distributed to the two output paths.

[0022] In at least one embodiment, the rotation axis of the output end of the motor is perpendicular to the first direction and the second direction; the first gear set includes at least one first gear; the rotation axis of the first gear is parallel to the rotation axis of the output end of the motor, and the two directly or indirectly form a parallel axis gear meshing; the two second gear sets are located on both sides of the first gear set along the second direction, and both include an equal number of second gears; the rotation axis of the second gear is parallel to the first direction, and the second gear used as the input power gear in the second gear set and the first gear used as the output power gear in the first gear set directly or indirectly form an intersecting axis gear meshing or a staggered axis gear meshing; the two driving output ends are respectively connected to the second gears used as output power gears in the two second gear sets.

[0023] Since the mutual relationship between the rotation axes of the first gear and the second gear and the rotation axis of the output end of the motor are defined, a clear and easy-to-use power transmission path solution is provided. The transmission is first carried out through the meshing of parallel axis gears, and then the power transmission direction is changed by the meshing of intersecting axis or staggered axis gears to adapt to the specific spatial position relationship between the motor and the drive output end, and is conducive to the overall miniaturization design of the relay.

[0024] In at least one embodiment, the rotation axis of the output end of the motor is perpendicular to the first direction and the second direction; the first gear set includes at least one first gear; the rotation axis of the first gear is perpendicular to the rotation axis of the output end of the motor, and the first gear used as the input power gear in the first gear set directly or indirectly forms an intersecting axis gear meshing or a staggered axis gear meshing with the output end of the motor; the two second gear sets are located on both sides of the first gear set along the second direction, and both of them include an equal number of second gears; the rotation axis of the second gear is parallel to the first direction, and the second gear used as the input power gear in the second gear set directly or indirectly forms a parallel axis gear meshing with the first gear used as the output power gear in the first gear set, and the two driving output ends are respectively connected to the second gears used as output power gears in the two second gear sets.

[0025] By defining a different relationship between the rotational axes of the first and second gears and their relationship to the rotational axis of the motor output, an alternative power transmission path is provided. First, intersecting or staggered gear meshing changes the power direction, achieving a larger transmission ratio. Subsequently, parallel gear meshing distributes the power to the two output terminals. This solution can adapt to different motor layout requirements and provides diverse options for transmission ratio design.

[0026] In at least one embodiment, the transmission mechanism includes a first part and a second part; the first part includes a plurality of gears arranged along the second direction; the two drive output ends are provided on predetermined gears of the first part and extend outward along the axial direction of the gear; the first part is located between the two drive output ends in the first direction; the second part is located on one side of the first part in the first direction, and the second part includes a plurality of gears, which are used to transmit the torque of the motor to the first part.

[0027] Since the transmission mechanism includes a first part and a second part, the first part includes several gears arranged along a third direction, the two drive output ends are provided on a predetermined gear of the first part and extend outward along the axial direction of the gear, and the first part is located between the two drive output ends in the first direction. This structure cleverly arranges the gear set (first part) directly formed or driving the output end in the transmission mechanism in the gap space formed in the first direction due to the misalignment of the drive output end, rather than further expanding the size of the drive part in the third direction, thereby effectively utilizing the space between the two drive output ends, which is beneficial to the mechanical balance and structural stability of the transmission mechanism at the two drive output ends; the second part is responsible for effectively transmitting the torque of the motor to the first part. This design of dividing the transmission mechanism into functional modules and optimizing the spatial layout improves the overall compactness of the drive part and is beneficial to the load balance of the two drive output ends in torque transmission.

[0028] In at least one embodiment, the rotation axis of the output end of the motor is perpendicular to both the first direction and the second direction.

[0029] Since the rotation axis of the output end of the motor is perpendicular to the first direction (the direction in which the outputs of the two drive output ends are directed) and the second direction (the direction perpendicular to the first direction, which is referenced by the positional relationship of the motor main body relative to the drive output end), this means that the rotation axis of the motor (i.e., the direction of the motor output end) is perpendicular to the plane formed by the first direction and the second direction. The motor can be arranged in a manner that minimizes its projected area on the plane (for example, the length direction of the motor is perpendicular to the plane). This orientation allows the drive part to have a smaller size in a specific dimension (usually the dimension corresponding to the length of the motor), which has positive significance for the compact design of the overall drive unit, especially in terms of height or thickness control, making the drive part easier to integrate into applications with limited space.

[0030] In at least one embodiment, the output end of the motor is maintained at a stopped position when the motor stops rotating.

[0031] Since the output end of the motor remains in the stopped position when the motor stops rotating, this self-locking or holding characteristic is usually achieved by the internal structure of the motor (such as the cogging torque of a permanent magnet synchronous motor, the positioning torque of a stepper motor) or an external braking mechanism, so that when the motor completes the driving task and stops supplying power or controlling the signal, its output end can resist the reverse torque generated by the external load (such as the reaction force from the relay contact spring or the load's own gravity, etc.), and no unexpected displacement or reversal will occur, so that the moving contact of the relay can reliably maintain the state after switching to the target position, without the need for the motor to continuously consume energy to maintain the position. This not only significantly reduces the standby energy consumption of the relay and extends the life of the motor, but also ensures the stability of the relay state, effectively prevents malfunctions caused by vibration or slight disturbances, and helps the contact part resist the electric repulsion when a fault current occurs.

[0032] At least in one embodiment, it further includes a receiving member, which receives the motor and transmission mechanism of the driving part and defines two clearance portions located on its outside; the positions of the two clearance portions respectively correspond to the output pointing sides of the two driving output ends and allow the two driving output ends to be exposed, and at least part of the pushing part is respectively located at the two clearance portions.

[0033] Since it also includes a container, which accommodates the motor and transmission mechanism of the driving part, it provides a closed protective space for these core driving components that are precise and easily affected by the external environment, and can effectively prevent the invasion of dust, moisture, corrosive gases or other external harmful factors, thereby improving the durability of the driving part and its working reliability in various complex and even harsh environments, and avoiding the metal debris generated during the operation of the driving part from affecting the contact performance of the moving contact and the static contact of the contact part; at the same time, the container is defined with two relief parts located on its outside, and the positions of these two relief parts precisely correspond to the positions of the two drive output ends, so that the drive output ends can smoothly extend out of the container, and provide necessary activity space and clear mechanical connection interface for at least part of the pushing part respectively located in the two relief parts. This design not only realizes the effective isolation of the driving part and the pushing part, which is beneficial to the modular assembly and subsequent maintenance of the relay, but also ensures that the pushing part can move smoothly within its predetermined driving stroke without interfering with the housing of the driving part.

[0034] The present invention also provides a relay, which includes a contact part, a pushing part and a driving part as described in claim 1; the contact part includes at least two switch groups, each of the switch groups independently has a switch or has at least two switches, and the switch includes a moving contact and a static contact; the pushing part includes at least two rotating parts, each of the rotating parts is driven by each driving output end of the driving part to respectively drive the moving contact and the static contact in each of the switch groups to close or open.

[0035] Since the present relay includes the aforementioned driving part, the driving part realizes the compactness of the driving unit, the reliability and stability of the driving through its unique dual-output end design and optimized motor and transmission mechanism layout, and directly imparts these advantages to the entire relay; the driving part drives the pushing part to drive the moving contact and the static contact in the contact part to close or disconnect, so the relay can not only achieve a more compact overall structure, but also effectively improve the driving instability, slow response or easy damage caused by the rotating parts of the driving part or the pushing part being too long, uneven force, etc., thereby improving the overall working reliability and service life of the relay; at the same time, since the contact part includes an independently controllable switch group, the relay can control at least two independent circuit paths or different branches of the same circuit simultaneously or separately, meeting more complex circuit control requirements.

[0036] In at least one embodiment, the pushing part further includes two pushing units, which are respectively connected to the two rotating parts and are respectively connected to the moving contacts in the first switch group and the second switch group; the rotating part rotates around a first axis parallel to the first direction when driven by the driving output end of the driving part; the pushing unit is suitable for being driven by the rotating part to move back and forth in a straight line or to swing around a second axis parallel to the first axis to at least two preset positions, and the movement direction of the pushing unit or the direction of driving the moving contact to move is a third direction, and the third direction is perpendicular to both the first direction and the second direction.

[0037] Since the pushing part includes two pushing units, the two pushing units are respectively connected to the two rotating parts and respectively connected to the moving contacts in the first switch group and the second switch group. This one-to-one connection method ensures that the two independent drives generated by the driving part can be accurately transmitted to their respective switch groups, avoiding the problem of uneven force distribution that may exist when a single pushing unit drives multiple switch groups; through the reciprocating linear motion or swinging of the pushing unit, the rotational motion of the rotating part can be effectively converted into the driving action required by the switch group, thereby realizing precise operation of the moving contact in the contact part, and ensuring the stability and reliability of the relay switching between different working states.

[0038] In at least one embodiment, the rotating member is provided with a first mating portion; the pushing member is provided with a second mating portion that slides with the first mating portion, and the second mating portion is perpendicular to the first axis; one of the first mating portion and the second mating portion is a sliding groove whose extension direction is perpendicular to the first axis, and the other is a sliding pin extending into the sliding groove along the direction of the first axis, and the sliding pin is offset relative to the first axis.

[0039] Since the rotating member is provided with a first matching portion, the pushing member is provided with a second matching portion that slides with the first matching portion, and one of the two is a sliding groove and the other is an offset sliding pin, forming an eccentric sliding mechanism. When the rotating member rotates around the first axis, the sliding pin fixed on the rotating member and deviated from the first axis will slide in the sliding groove on the pushing member, or the eccentric groove on the rotating member drives the pin on the pushing member to move. This eccentric design enables the continuous rotational motion of the rotating member to be efficiently and accurately converted into the reciprocating linear motion of the pushing member in the third direction or the swinging motion of a predetermined angle, thereby realizing the precise control of the driving part over the pushing part and the effective motion form conversion, thereby ensuring the smoothness and repeatability of the driving action.

[0040] In at least one embodiment, the extending direction of the sliding slot is the second direction; the first switch group includes two switches; the second switch group includes one switch; when the sliding pin is located on one side of the first axis along the third direction, one of the switches in the first switch group and the switches in the second switch group are closed; when the sliding pin is located on the other side of the first axis along the third direction, the other switch in the first switch group is closed, and the switch in the second switch group is opened; when the sliding pin is located on one side of the first axis along the second direction, each switch in the first switch group and the switches in the second switch group are all opened.

[0041] Because the sliding pins are positioned on either side of the first axis along the third direction when the moving and stationary contacts in the first and second switch groups are closed or open, the effective displacement of the sliding pins is limited to the third direction, which is roughly the same as the direction of motion of the pusher. This further confines the movement of the movable mechanism to the existing space, further utilizing the space created by the improved drive unit and facilitating the compactness and miniaturization of the overall relay structure. The first switch group includes two switches, while the second switch group includes one switch. The sliding pins and sliding slots cooperate to enable the contact portions to have three distinct contact states, enabling more complex switching logic combinations. For example, they can flexibly form specific series, parallel, or selectively switch circuits, as well as achieve a full disconnect function. This provides the necessary hardware foundation for specific applications such as intelligent switching between series and parallel states of battery packs.

[0042] In at least one embodiment, the relay further includes a housing, wherein the housing accommodates the contact portion, the pushing portion, and the driving portion.

[0043] Since the relay also includes a housing, the housing accommodates the contact part, the pushing part and the driving part, providing a unified external package and structural basis for all functional components inside the relay, playing an overall physical protection role, and preventing damage to internal components due to external impact, pollution, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 Schematic diagram of the three-dimensional structure of the relay in Example 1;

[0046] Figure 2 Schematic diagram of the internal structure of the relay in Example 1;

[0047] Figure 3 Schematic diagram of the three-dimensional structure of the relay in embodiment 1 from another perspective;

[0048] Figure 4 A schematic diagram of the internal structure of the relay in Example 1 from another perspective;

[0049] Figure 5 Schematic diagram of the X-axis direction of the relay in Example 1;

[0050] Figure 6 Schematic diagram of the Z-axis direction of the relay in Example 1;

[0051] Figure 7 for Figure 6 Schematic diagram of the middle AA section;

[0052] Figure 8 This is a partial structural diagram of the pushing part in Example 1;

[0053] Figure 9 Schematic diagram of the Z-axis direction of the pushing part in Example 1;

[0054] Figure 10 This is a partial exploded schematic diagram of the pushing part in Example 1;

[0055] Figure 11 Schematic diagram of the limiting portion in Example 1;

[0056] Figure 12 Schematic diagram of the structure of the rotating member in Example 1;

[0057] Figure 13Schematic diagram of the driving part in the Z-axis direction in Example 1;

[0058] Figure 14 This is a schematic diagram of the internal structure of the driving part in the first embodiment in the Z-axis direction;

[0059] Figure 15 is a three-dimensional schematic diagram of the internal structure of the driving part in Example 1;

[0060] Figure 16 A schematic diagram of the internal structure of the driving part in the second embodiment in the Z-axis direction;

[0061] Figure 17 It is a three-dimensional schematic diagram of the internal structure of the driving part in the second embodiment.

[0062] Description of main reference numerals:

[0063] Contact portion 100; first switch group 111; second switch group 112; first switch 121; second switch 122; third switch 123; movable contact 131; movable contact point 132; pushed portion 133; fixed portion 134; actuating portion 135; flexible connecting portion 136; common movable contact 137; static contact 141; static contact point 142; common static contact 143;

[0064] Pushing part 200; rotating member 210; main shaft 211; sliding pin 212; pushing unit 220; connecting body 221; pushing body 222; first elastic member 223; first blocking portion 224; second blocking portion 225; pushing member 226; sliding groove 227; side wall 228; overlapping portion 229; pushing body 2210; embedded part 2211; metal swing arm 230; shaft connecting portion 231; extension portion 232; pushing Dynamic connecting portion 233; first portion 234; second portion 235; assembly hole 236; card interface 237; mounting seat 240; seat body 241; rotating shaft 242; limiting portion 243; first limiting surface 244; second limiting surface 245; journal neck 246; first assembly member 247; second assembly member 248; engaging groove 249; connecting member 2410; positioning protrusion 2411; positioning hole 2412; swing block 250;

[0065] Driving portion 300; motor 310; transmission mechanism 320; driving output end 321; output gear 322; first portion 323; second portion 324; first gear set 325; second gear set 326; first gear 327; second gear 328; input power gear 329; output power gear 3210; accommodating member 330; and clearance portion 331. DETAILED DESCRIPTION

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0067] Definition of terms

[0068] In the claims and description of the present invention, unless otherwise defined, the use of terms such as "first", "second" or "third" is for distinguishing different objects rather than for describing a specific order.

[0069] In the claims and description of the present invention, unless otherwise specified, the directions or positional relationships indicated by the terms "X-axis direction", "Y-axis direction", "Z-axis direction", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc. are based on the directions and positional relationships shown in the accompanying drawings and are only for the convenience of simplifying the description, and do not imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction.

[0070] In the claims and description of the present invention, unless otherwise specified, the terms "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method without any displacement relationship or relative rotation relationship between the two parties, that is, including non-detachable fixed connection, detachable fixed connection, integrated connection, and fixed connection through other devices or elements.

[0071] In the claims and description of the present invention, unless otherwise defined, the terms "include", "have" and their variations are intended to mean "including but not limited to".

[0072] In the claims and description of the present invention, unless otherwise defined, the terms "first direction", "second direction" and "third direction" correspond to the three-dimensional coordinate system defined in the present invention, where the first direction is the Y-axis direction, the second direction is the X-axis direction, and the third direction is the Z-axis direction.

[0073] In the claims and description of the present invention, unless otherwise specified, the term "motor" shall be interpreted as referring to the power source in the drive unit that converts electrical energy into mechanical energy, and its output torque drives the transmission mechanism. In the present invention, the motor preferably has an output terminal capable of being held in a stopped position when it stops rotating to maintain the state of the relay.

[0074] In the claims and description of the present invention, unless otherwise defined, the term "transmission mechanism" shall be interpreted as referring to a power transmission component located between the motor and the drive output end, which receives power from the motor and transmits, reduces speed or distributes it through internal gears and other components, and ultimately outputs motion and torque to at least two drive output ends.

[0075] In the claims and specification of the present invention, unless otherwise specified, the term "drive output" shall be interpreted as referring to the final output portion of the transmission mechanism, which is directly or indirectly connected to the rotating member of the driving portion and is used to output the torque and rotational motion transmitted by the transmission mechanism to the rotating member. In the present invention, this specifically refers to at least two independent output interfaces.

[0076] In the claims and description of the present invention, unless otherwise defined, the term "gear" should be interpreted as referring to a mechanical element with gear teeth on its edge that is used to transmit motion and power in a transmission mechanism.

[0077] In the claims and description of the present invention, unless otherwise defined, the term "output gear" should be interpreted as referring to a specific gear in the transmission mechanism that is coaxially connected to the drive output end and directly determines the rotational movement of the drive output end.

[0078] In the claims and description of the present invention, unless otherwise defined, the terms "first reduction assembly, second reduction assembly" shall be interpreted as referring to two independent transmission paths in the transmission mechanism, which are composed of a number of mutually meshing gears, both of which are driven by motors and transmit the power after deceleration and torque increase to the corresponding drive output ends.

[0079] In the claims and description of the present invention, unless otherwise specified, the terms "first gear set" and "second gear set" shall be interpreted as referring to the gear sets within the transmission mechanism that are divided according to the direction of power flow. The "first gear set" is the gear set that is directly or indirectly driven by the motor and performs power distribution. The "second gear set" refers to two independent gear sets that mesh with the first gear set and transmit power to the corresponding drive output terminals.

[0080] In the claims and description of the present invention, unless otherwise defined, the term "input power gear" shall be interpreted as referring to a gear in a gear set or reduction assembly that receives power from a higher-level power source (such as a motor or other gear).

[0081] In the claims and description of the present invention, unless otherwise defined, the term "output power gear" shall be interpreted as referring to a gear in a gear set or reduction assembly that transmits power to the next level component (such as other gears or drive output end).

[0082] In the claims and description of the present invention, unless otherwise defined, the term "parallel axis gear meshing" should be interpreted as referring to a meshing mode in which the rotation axes of two meshing gears are parallel to each other in space.

[0083] In the claims and description of the present invention, unless otherwise defined, the term "intersecting axis gear meshing" should be interpreted as referring to a meshing mode in which the rotation axes of two meshing gears intersect each other at one point in space.

[0084] In the claims and description of the present invention, unless otherwise defined, the term "cross-axis gear meshing" should be interpreted as referring to a meshing mode in which the rotation axes of two meshing gears are neither parallel nor intersecting in space.

[0085] In the claims and description of the present invention, unless otherwise specified, the terms "first portion" and "second portion" shall be interpreted as referring to the two regions that functionally and spatially divide the transmission mechanism. The "first portion" is a gear assembly comprising two output gears, arranged along the second direction, and located between the two drive output ends in the first direction. The "second portion" is a gear assembly used to transmit the motor torque to the first portion and is located to one side of the first portion in the first direction.

[0086] In the claims and description of the present invention, unless otherwise defined, the term "housing member" shall be interpreted as referring to a housing structure for accommodating and protecting the motor and transmission mechanism of the driving part, and providing support and protection for internal components.

[0087] In the claims and description of the present invention, unless otherwise defined, the term "clearance portion" should be interpreted as: referring to a space or opening reserved for a specific component on the outside of the accommodating component, and in the present invention specifically refers to the area defined for the exposure of the drive output end and the installation and movement of the pushing part.

[0088] In the claims and specification of the present invention, unless otherwise specified, the term "switch" shall be interpreted as meaning "a switch including a moving contact and a stationary contact," which should be understood as meaning that each switch must have a moving contact and a stationary contact for closing or opening the switch. When two or more switches share a moving contact (i.e., a common moving contact), the shared moving contact can be closed or opened with the stationary contacts of each of these switches.

[0089] In the claims and specification of the present invention, unless otherwise specified, the term "moving contact" shall be interpreted as referring to a component that moves in whole or in part to close or open with the stationary contact when pushed by a pushed portion. In the present invention, when the term "moving contact" is used to describe its position, direction, or relative relationship with a stopper, etc., it should be understood to specifically refer to its movable main body, especially its actuating portion that contacts the stationary contact.

[0090] In the claims and specification of the present invention, unless otherwise specified, the term "stationary contact" shall be interpreted as referring to a component that remains fixed in position relative to the movement of the moving contact. In the present invention, when "stationary contact" is used to describe its spatial distribution or relative position to the moving contact, it should be understood to specifically refer to the portion of the contact that comes into contact with the moving contact.

[0091] In the claims and specification of the present invention, unless otherwise specified, the terms "moving direction and closing direction of the moving contact" should be interpreted as follows: "The moving direction of the moving contact" should be understood as bidirectional. For example, for a common moving contact, it refers to the direction of its reciprocating motion between the static contacts on both sides. The "closing direction of the moving contact" should be understood as unidirectional, referring to the direction of movement of the moving contact toward and ultimately contacting a specific static contact. The closing direction is one component of the moving direction. The moving direction or closing direction can be a linear motion direction or a tangential direction of a swinging motion.

[0092] In the claims and description of the present invention, unless otherwise defined, the term "mounting seat" should be interpreted as: a fixed component used to support and provide a rotation reference for the two metal swing arms, which may include a seat body and a rotating shaft.

[0093] In the claims and description of the present invention, unless otherwise defined, the term "metal swing arm" shall be interpreted as: referring to sheet-like components arranged in pairs and made of metal material, which can swing around a second axis to guide the movement of the pushing unit and provide auxiliary support to the pushing unit.

[0094] In the claims and description of the present invention, unless otherwise defined, the term "rotating shaft" should be interpreted as referring to an axis component used to support the metal swing arm and enable it to rotate, and its central axis is the second axis.

[0095] In the claims and specification of the present invention, unless otherwise specified, the terms "first pushing portion" and "second pushing portion" shall be interpreted as referring to regions of the metal swing arm defined by their relative positions to the movable contact. The "first pushing portion" is the section that faces the energized portion of the movable contact along the first axial direction, and the distance between the two metal swing arms is greater in this section. The "second pushing portion" is the section that does not face the energized portion of the movable contact along the first axial direction, and the distance between the two metal swing arms is smaller in this section.

[0096] In the claims and description of the present invention, unless otherwise specified, the terms "shaft connection portion," "extension portion," and "push connection portion" shall be interpreted as referring to the three functional sections of the metal swing arm along its length. The "shaft connection portion" is the section connected to the rotating shaft; the "extension portion" is the section extending from the shaft connection portion to accommodate and move the movable contact; and the "push connection portion" is the section connected to the push unit.

[0097] In the claims and description of the present invention, unless otherwise defined, the term "limiting portion" should be interpreted as referring to a structure provided on the mounting seat for limiting the axial displacement of the metal swing arm and / or the pushing unit in the first axial direction.

[0098] In the claims and specification of the present invention, unless otherwise specified, the terms "first limiting surface" and "second limiting surface" shall be interpreted as referring to surfaces on the limiting portion used to achieve axial positioning. The "first limiting surfaces" are two surfaces arranged opposite to each other along the first axial direction, used to limit the overall range of motion of the two metal swing arms; the "second limiting surfaces" are two surfaces arranged opposite to each other along the first axial direction, which cooperate with the first limiting surfaces to accurately position a single metal swing arm.

[0099] In the claims and description of this invention, unless otherwise specified, the terms "assembly hole" and "clip interface" shall be interpreted as referring to the structure on the metal swing arm that is used to achieve elastic snap connection with the rotating shaft. The "assembly hole" is the hole through which the rotating shaft passes; the "clip interface" is a narrow slit that connects to the assembly hole and has an opening size smaller than the maximum inner diameter of the assembly hole, allowing the two sides of the metal swing arm's clip interface to elastically expand and snap into the rotating shaft.

[0100] In the claims and description of the present invention, unless otherwise defined, the term "elastic snap connection" shall be interpreted as: a connection method that utilizes the elasticity of the component itself, through which a component (such as a metal swing arm with a snap interface) undergoes temporary elastic deformation to pass over a specific part of another component (such as a rotating shaft), and then returns to its original state to achieve locking.

[0101] In the claims and description of the present invention, unless otherwise defined, the term "shaft neck" should be interpreted as: referring to a section on the rotating shaft with a smaller outer diameter, which is used to cooperate with the assembly hole of the metal rocker arm, and the step surfaces on both sides thereof can form a limiting surface.

[0102] In the claims and description of the present invention, unless otherwise specified, the term "base" should be interpreted as referring to the main body of the mounting base, which is used to support the rotating shaft and other components. In the present invention, the base includes a first assembly part and a second assembly part fixedly connected to each other.

[0103] In the claims and description of the present invention, unless otherwise specified, the terms "first assembly part" and "second assembly part" should be interpreted as referring to two separable components constituting the base body, which are fixedly connected by fasteners to facilitate the assembly of the rotating shaft and the metal swing arm.

[0104] In the claims and description of the present invention, unless otherwise defined, the term "pushing unit" should be interpreted as referring to a collection of components that directly or indirectly push the moving contact member to move. In this application, its core components include the pushing member and the first elastic member.

[0105] In the claims and description of the present invention, unless otherwise specified, the term "pushing member" should be interpreted as: referring to a core rigid component in the pushing unit, which carries functional structures such as the first limiting part and the second limiting part, and is used to transmit the driving force from the driving part, and provide support for the first elastic member.

[0106] In the claims and description of this invention, unless otherwise specified, the terms "propulsion body" and "embedded component" shall be interpreted as referring to components made of two different materials that constitute the propulsion unit. The "propulsion body" generally refers to the main body made of plastic; the "embedded component" refers to a metal component pre-embedded in the propulsion body to enhance the connection strength with the metal swing arm.

[0107] In the claims and description of the present invention, unless otherwise specified, the term "first elastic member" should be interpreted as referring to an elastic element (such as a spring) provided in the pushing unit, whose main function is to provide stable and reliable contact pressure to the moving contact through the stored elastic potential energy when the moving contact and the static contact are closed.

[0108] In the claims and specification of the present invention, unless otherwise specified, the term "first blocking portion" shall be interpreted as referring to a structure provided on the pusher for limiting, through direct physical contact, the separation of the movable contact from the stationary contact due to the electrodynamic repulsive force of a fault current when the movable contact is closed. The first blocking portion is located to the side of the movable contact (e.g., above the movable contact) in the direction of disconnection (directly away from the corresponding stationary contact) when the movable contact is closed. Only in this manner can the first blocking portion contact or approach the movable contact in the closing direction of the movable contact when the movable contact is closed, thereby limiting the opening distance of the movable contact.

[0109] In the claims and description of the present invention, unless otherwise defined, the term "second blocking portion" shall be interpreted as: a structure provided on the push member, which is used to ensure that the moving contact and the static contact maintain a reliable disconnection gap through physical blocking when the moving contact is disconnected, or to lock the moving contact in an intermediate isolation position.

[0110] In the claims and description of the present invention, unless otherwise defined, the term "common moving contact" should be interpreted as referring specifically to a moving contact shared by at least two switches (forming a first switch group) in the present invention.

[0111] In the claims and description of the present invention, unless otherwise defined, the term "first switch group" shall be interpreted as referring to a set of at least two switches, wherein these switches share a moving contact (i.e., a common moving contact), and the static contacts of each switch are respectively located on both sides of the action direction of the common moving contact to realize the function of a switching switch.

[0112] In the claims and description of the present invention, unless otherwise defined, the term "flexible moving contact" should be interpreted as referring to a moving contact that realizes the swing of the action part by bending and deforming its own flexible connection part.

[0113] In the claims and specification of the present invention, unless otherwise specified, the terms "fixed portion," "acting portion," and "flexible connecting portion" shall be interpreted as referring to the three parts that constitute the flexible movable contact. The "fixed portion" is the portion that remains fixed relative to the static contact; the "acting portion" is the portion that is adapted to swing relative to the fixed portion to close or open with the static contact; and the "flexible connecting portion" is the flexible portion that connects the fixed portion and the acting portion and provides bending function.

[0114] In the claims and description of the present invention, unless otherwise specified, the term "housing" should be interpreted as referring to the external cover of the relay, which is used to accommodate and protect internal components such as the contact part, the pushing part and the driving part.

[0115] In the claims and description of the present invention, unless otherwise defined, the term "driving part" should be interpreted as referring to a component that receives an external signal and generates power to drive the propulsion part to move, which in the present invention includes a motor and a transmission mechanism.

[0116] In the claims and description of the present invention, unless otherwise defined, the term "rotating part" should be interpreted as: a core rotating component in a transmission mechanism, such as a crankshaft or a cam, which is used to convert the power of the driving part into a specific motion (such as swinging or linear motion).

[0117] In the claims and description of the present invention, unless otherwise defined, the term "first axis" should be interpreted as referring to the central axis around which the rotating member is driven by the motor to rotate.

[0118] In the claims and specification of the present invention, unless otherwise specified, the terms "first engaging portion and second engaging portion" shall be interpreted as referring to a pair of cooperating structures, provided on the rotating member and the pushing member, respectively, for transmitting the rotational motion of the rotating member into the swinging or linear motion of the pushing member. For example, one of the first engaging portion and the second engaging portion may be a sliding pin and the other may be a sliding groove.

[0119] Example 1

[0120] The first embodiment relates to a relay, such as Figure 1 As shown, the relay includes a contact portion 100, a push portion 200, a drive portion 300, and a housing. The contact portion 100 is used to control the on / off state of an external circuit or at least one of its branches. The push portion 200 is used to push the switch of the contact portion 100 to close or open. The drive portion 300 is used to receive external signals or stimuli to drive the push portion 200. The housing accommodates the contact portion 100, the push portion 200, and the drive portion 300.

[0121] The driver 300 is the relay's power source, responsible for receiving external control signals and generating mechanical motion. The pusher 200, acting as the transmission hub, precisely transmits the motion generated by the driver 300 to the contactor 100. The contactor 100 is the final component that switches the circuit on and off, and the state of its internal switch is directly controlled by the action of the pusher 200.

[0122] The pushing portion 200 involved in the first embodiment is used to push the moving contact 131 in at least one switch in the contact portion 100 of the relay to close or open with the static contact 141. Before introducing the pushing portion 200, the contact portion 100 is first introduced.

[0123] like Figure 1 As shown, the contact portion 100 includes at least two switches, and the switch has at least two switch groups, each switch group independently has one switch or has at least two switches, and each switch includes a moving contact 131 and a static contact 141 for closing or opening the switch. In this embodiment, the contact portion 100 includes three switches, namely a first switch 121, a second switch 122, and a third switch 123, wherein the third switch 123 can refer to Figure 3 .

[0124] At least two of the switches form a first switch group 111. Figure 1 and Figure 2As shown, in this embodiment, the first switch 121 and the second switch 122 form a first switch group 111. In the first switch group 111, the switches share a common moving contact 131 to form a common moving contact 137. The static contacts 141 of each switch are located on both sides of the common moving contact 137 along the movement direction of the common moving contact 137. In this embodiment, the common moving contact 137 swings on a plane perpendicular to the Y-axis direction, and its effective movement direction is the Z-axis direction. Therefore, the main movement direction of the common moving contact 137 can be regarded as the Z-axis direction. The static contact 141 of the first switch 121 is located on the upper side of the common moving contact 137 along the Z-axis direction, and the static contact 141 of the second switch 122 is located on the lower side of the common moving contact 137 along the Z-axis direction.

[0125] Reference Figure 1 、 Figure 2 and Figure 7 In the two switches of the first switch group 111, two static contacts 141 are spaced apart along the Z-axis and each has a static contact 142. The static contacts 142 of the two static contacts 141 are symmetrically arranged at a predetermined distance along the Z-axis. The static contacts 142 of the two static contacts 141 facing each other are configured to cooperate with the movable contact 132 on the common movable contact 137. The common movable contact 137 has movable contacts 132 on both sides of its surface along the Z-axis. The two sets of movable contacts 132 on the common movable contact 137 correspond to the static contacts 142 of the two static contacts 141. Driven by the push portion 200, the common movable contact 137 can have one set of movable contacts 132 connected to or disconnected from the corresponding static contact 142, or disconnected from both static contacts 142. In other words, the two sets of movable contacts 131 on the common movable contact 137 are spaced a predetermined distance from the corresponding static contacts 142.

[0126] In the first embodiment, the common moving contact 137 is a flexible moving contact 131, such as Figure 1 and Figure 2As shown, the flexible moving contact 131 includes a fixed portion 134, an actuating portion 135 and a flexible connecting portion 136. The fixed portion 134 is fixed relative to each static contact 141 and is used to lead out the connection terminal. In this embodiment, the fixed portion 134 of each flexible moving contact 131 extends along the X-axis direction and is therefore perpendicular to the main movement direction of the moving contact 131, i.e., the Z-axis direction. The actuating portion 135 is suitable for swinging relative to the fixed portion 134 along the actuating direction of the moving contact 131 to close or disconnect with the static contact 141. The flexible connecting portion 136 connects the fixed portion 134 and the actuating portion 135 and is suitable for bending. In this embodiment, the flexible moving contact 131 is made of laminated metal sheets. Specifically, the two ends of the laminated metal sheet are connected to the fixed portion 134 and the actuating portion 135 by welding, or the two ends of the laminated metal sheet are formed by bonding, pressing or welding to form the fixed portion 134 and the actuating portion 135, and the middle part of the laminated metal sheet forms the flexible connecting portion 136. In this embodiment, the common movable contact 137, serving as the flexible movable contact 131, has its flexible connection portion 136 located at different ends along the common movable contact 137's direction of motion, particularly along the Z-axis, its primary direction of motion. The end of the flexible connection portion 136 connected to the actuating portion 135 is located along the Z-axis between the stationary contact 141 of the first switch 121 and the stationary contact 141 of the second switch 122. The section of the flexible connection portion 136 connected to the fixed portion 134 is located below the end of the flexible connection portion 136 connected to the actuating portion 135 along the Z-axis. In the disconnected state, the actuating portion 135 extends along the X-axis, meaning that in the disconnected state, the actuating portion 135 extends in the longitudinal direction of the movable contact 131. The actuating portion 135 can be connected to the push portion 200, allowing the movable contact 131 to be driven by the push portion 200 to swing relative to the fixed portion 134. The movable contact point 132 of the movable contact 131 is located on the actuating portion 135.

[0127] Reference Figure 1 and Figure 2The actuating portion 135 of the movable contact 131 has a certain width, with the width of the actuating portion 135 being oriented in the Y-axis direction. The end of the actuating portion 135 opposite the flexible connecting portion 136 along the X-axis forms a pushed portion 133. The pushed portion 133 and the movable contact 132 of the movable contact 131 are arranged in the X-axis direction. The pushed portion 133 is connected to the pushing portion 200. The width of the actuating portion 135 is smaller than the width of the portion housing the movable contact 132, and the pushed portion 133 is located approximately in the middle of the width of the actuating portion 135. Of course, it is worth noting that, in some possible embodiments, the portion of the dynamic contact 131 used to connect with the pushing portion 200 may also be directly composed of the portion of the action portion 135 corresponding to the installation of the dynamic contact 132. In this case, the action portion 135 does not need to extend other portions to constitute the pushed portion. In order to ensure the current-carrying capacity of the dynamic contact 131, the width of the action portion 135 may be consistent with the width of other current-carrying portions on the dynamic contact 131 and ensure a uniform width at each position without the need for reduction at a local position.

[0128] Reference Figure 3 and Figure 4 Contact portion 100 further includes a second switch group 112 consisting of a single switch, which is a third switch 123. Third switch 123 utilizes the same flexible movable contact 131 as the two switches in first switch group 111, except that this movable contact 131 does not serve as a common movable contact 137. The stationary contact 141 of third switch 123 is located below movable contact 131 along the Z axis, with the stationary contact point 142 and movable contact 132 of the third switch 123 positioned opposite each other.

[0129] In the first embodiment, the first switch group 111 and the second switch group 112 share a static contact 141. Specifically, the first switch 121 in the first switch group 111 and the third switch 123 in the second switch group 112 share a static contact 141. The static contact 141 is a common static contact 143. Figure 5The common static contact 143 is provided with static contacts 142 corresponding to the first switch 121 and the third switch 123, respectively. The static contact 142 of the first switch 121 is downward along the Z-axis direction, and the static contact 142 of the third switch 123 is upward along the Z-axis direction. At the same time, as an electrical implementation, the push portion 200 causes the common movable contact 137 in the first switch group 111 and the movable contact 131 in the second switch group 112 to swing in the same direction. That is, when the actuating portion 135 of the common movable contact 137 is lifted along the Z-axis, the actuating portion 135 of the movable contact 131 of the third switch 123 is also lifted along the Z-axis, closing the first switch 121 and opening the third switch 123. Conversely, when the actuating portion 135 of the common movable contact 137 is moved downward along the Z-axis, the actuating portion 135 of the movable contact 131 of the third switch 123 is also moved downward along the Z-axis, opening the first switch 121, closing the second switch 122, and closing the third switch 123. This also includes a state where both the first switch 121 and the second switch 122 are opened, at which point the third switch 123 is also opened. In the first embodiment, the state in which the first switch 121 is closed is set as the first state, the state in which only the second switch 122 and the third switch 123 are closed is set as the second state, and the state in which the first switch 121, the second switch 122, and the third switch 123 are all open is set as the third state. Figure 5 and Figure 7 As shown, at this time, the moving contact 132 of the moving contact 131 is not in contact with the static contact 142 of the static contact 141 of the first switch 121 and the second switch 122, and the relay is in the third state.

[0130] In this embodiment, the contact portion 100 includes at least two switches, the length directions of the movable contacts 131 are parallel to each other in a preset projection plane, and the swing ends of at least two adjacent movable contacts 131 are located at the same end or different ends of the length directions of the two. Figures 1 to 4 The first switch group 111 and the second switch group 112 include two movable contacts 131. Each movable contact 131 has a fixed portion 134, a flexible connection portion 136, and an actuating portion 135. The length direction of the movable contact 131 can be considered the extension direction of the fixed portion 134 and the actuating portion 135, that is, the X-axis direction in the first embodiment. The actuating portion 135 of the movable contact 131 is the swinging end of the movable contact 131. In the first embodiment, the fixed portion 134 of the movable contact 131 of the first switch group 111 is located at the first end in the X-axis direction, and the actuating portion 135 is located at the second end in the X-axis direction. The fixed portion 134 of the movable contact 131 of the second switch group 112 is located at the second end in the X-axis direction, and the actuating portion 135 is located at the first end in the X-axis direction. Therefore, in the first embodiment, the swinging ends of two adjacent movable contacts 131 are located at different ends in their length direction. Of course, in other embodiments, the swinging ends of two adjacent movable contacts 131 may also be located at the same end in their length direction.

[0131] The driving portion 200 includes at least two rotating members 210. Each rotating member 210 is driven by a respective drive output terminal of the driving portion 300 to respectively close or open the movable contact members 131 and the stationary contact members 141 in each switch group (e.g., the first switch group 111 and the second switch group 122). The structure of the driving portion 200 is described in detail below.

[0132] like Figure 1 and Figure 2 As shown, the pushing portion 200 includes a mounting base 240 , two metal swing arms 230 , two pushing units 220 and a rotating member 210 .

[0133] Reference Figure 1 The mounting seat 240 includes a seat body 241 and a rotating shaft 242. Figure 7 , the mounting base 240 further includes a connecting member 2410. Figure 1 The seat body 241 includes a first assembly part 247 and a second assembly part 248. The mounting seat 240 is fixed or at least partially formed on the housing. In the first embodiment, the first assembly part 247 in the seat body 241 is fixed on the housing.

[0134] The first assembly part 247 in the base 241 is made of plastic, the rotating shaft 242 can be made of plastic or metal, and the connector 2410 is made of metal. The static contact 141 of the contact portion 100 can be integrally formed with the first assembly part 247 through insert molding. Simultaneously, the connector 2410 can also be integrally formed with the first assembly part 247 through insert molding. The connector 2410 is used to secure the movable contact 131 and is connected to the fixing portion 134 of the movable contact 131. In this embodiment, the first assembly part 24 serves as a mounting base for the contact portion. Alternatively, the connector 2410 and the movable contact 131 can be secured by riveting. In addition, the relay is connected to the external circuit through a connecting terminal (not shown in the figure). In embodiment one, the connecting member 2410 can be a conductive metal, and the connecting terminal electrically connected to the moving contact 131 can be formed or set on the connecting member 152, and the direction in which the connecting terminal is led out of the relay can be set arbitrarily as needed; at the same time, the connecting terminal electrically connected to the static contact 141 can be directly formed or set on the static contact 141, and can be led out of the shell in any direction as needed.

[0135] The second assembly part 248 in the seat body 241 can also be made of plastic or metal. It is a long sheet-like component with a through hole extending through the thickness thereof. A fastener can pass through the through hole to secure the second assembly part 248 to the first assembly part 247. Figure 1, a fitting groove 249 is provided at the position of the first assembly part 247 for mounting the second assembly part 248, which is adapted to at least a portion of the shape and size of the second assembly part 248. When the second assembly part 248 is fixed to the first assembly part 247, the second assembly part 248 can be fitted into the first assembly part 247 along the Y-axis direction, and then fixed by fasteners. In another possible example, one of the first assembly part 247 and the second assembly part 248 is provided with a positioning protrusion 2411 extending along the first axial direction, and the other is provided with a positioning hole 2412 that can be adapted to be inserted into the positioning protrusion 2411. Figure 1 As shown, a positioning protrusion 2411 is provided at the bottom of the engagement groove 249, and a positioning hole 2412 is provided on the second assembly member 248. The arrangement of the engagement groove 249, positioning protrusion 2411, and positioning hole 2412 enables at least portions of the first assembly member 247 and the second assembly member 248 to form an engagement relationship along the first axial direction. The arrangement of the engagement groove 249, positioning protrusion 2411, and positioning hole 2412 not only reliably positions and prevents rotation of the second assembly member 248, allowing the second assembly member 248 to be secured with only a single fastener, simplifying the installation structure. Furthermore, the arrangement of the engagement groove 249 prevents the second assembly member 248 from protruding beyond the surface of the first assembly member 247 and increasing the overall size of the structure.

[0136] Furthermore, each of the first assembly member 247 and the second assembly member 248 is provided with an axial hole along the Y-axis, through which both ends of the rotating shaft 242 can pass, forming a pivotal connection, thereby allowing the rotating shaft 242 to be assembled to the base 241. In the first embodiment, the rotating shaft 242 is independently provided and assembled to the base 241. In other embodiments, the rotating shaft 242 can be directly formed on the base 241 or directly formed on the metal swing arm 230.

[0137] Reference Figure 1 and Figure 2 Two metal swing arms 230 are arranged on either side of at least one movable contact 131 along a first axis. They are rotatably connected to a mounting base 240 via a rotating shaft 242 to swing about a second axis, which extends in the direction of the first axis. In the first embodiment, two metal swing arms 230 are provided on the common movable contact 137 of the first switch assembly 111. These two metal swing arms 230 cooperate with the push unit 220 to define the motion trajectory of the push unit 220, and thus, through the push unit 220, define the swing trajectory of the actuating portion 135 of the common movable contact 137. The first axis is the Y-axis in the accompanying drawings. The location of the rotating shaft 242 and its center axis define the second axis.

[0138] In the first embodiment, the rotating shaft 242 is preferably made of metal, and the metal swing arm 230 is pivotally connected to the rotating shaft 242. In other words, the rotating shaft 242 and the metal swing arm 230 are pivotally connected, and the rotating shaft 242 and the metal swing arm 230 are independent components. Both the rotating shaft 242 and the metal swing arm 230 can be made of stainless steel.

[0139] Reference Figure 8 and Figure 9 The metal swing arm 230 is a sheet-like member of a predetermined thickness, with its thickness direction parallel to the first axial direction. The width of the metal swing arm 230 is parallel to the Z-axis, and its length is parallel to the X-axis. The width of the metal swing arm 230 is significantly greater than its thickness, and its length is significantly greater than its width. The two metal swing arms 230 are arranged along the Y-axis, forming a space between them for the placement or movement of the common movable contact 137.

[0140] Reference Figure 8 and Figure 9 The metal swing arm 230 includes a first portion 234 and a second portion 235. The first portion 234 can oppose at least a portion of the energized portion of the movable contact 131 along the first axial direction, while the second portion 235 does not oppose the energized portion of the movable contact 131 along the first axial direction. The distance between the first portions 234 of the two metal swing arms 230 along the first axial direction is greater than the distance between the corresponding second portions 235 of the two metal swing arms 230 along the first axial direction. Specifically, the metal swing arm 230 is sequentially provided with a shaft connection portion 231, an extension portion 232, and a push connection portion 233 along its length. The shaft connection portion 231 is connected to the rotating shaft 242, and the push connection portion 233 is connected to the push unit 220. The extension portion 232 forms the first portion 234, and at least the shaft connection portion 231 forms the second portion 235. In the first embodiment, the metal swing arm 230 starts from its shaft connection portion 231, extends forward to the first turning position, turns outward and continues to extend forward to form an extension portion 232, and the extension portion 232 extends forward for a longer distance, reaches the second turning position, turns inward and continues to extend forward to form a push connection portion 233. Figure 9 It can be seen that the extension part 232 serves as the first part 234 of the metal swing arm 230, and the shaft connection part 231 and the pushing connection part 233 both serve as the second part 235 of the metal swing arm 230. The distance between the extension parts 232 of the two metal swing arms 230 is greater than the distance between the shaft connection parts 231 and the distance between the pushing connection parts 233.

[0141] The mounting seat 240 is provided with a limiting portion 243, which includes two limiting surfaces arranged facing and / or opposite to each other along the first axial direction. The two limiting surfaces are suitable for forming a limiting fit with the metal swing arm 230 and / or the pushing unit 220 along the first axial direction to limit the overall movement of the metal swing arm 230 and the pushing unit 220 in the first axial direction.

[0142] Among them, reference Figure 9 The limiting portion 243 is provided corresponding to the assembly position of the two metal swing arms 230, and has two first limiting surfaces 244 arranged opposite to each other along the first axial direction. The two first limiting surfaces 244 respectively cooperate with the two metal swing arms 230 to limit the movement of the two metal swing arms 230 in the first axial direction. In the first embodiment, one end of the rotating shaft 242 is assembled to the first assembly part 247, and the other end is assembled to the second assembly part 248, and the first assembly part 247 and the second assembly part 248 are respectively provided with a first limiting surface 244. At least one metal swing arm 230 is sleeved on the rotating shaft 242 from one end of the rotating shaft 242 close to the second assembly part 248. In the first embodiment, referring to Figure 1 The first assembly part 247 is provided with an axial hole extending along the Y axis, and the second assembly part 248 is provided with an axial hole passing through the Y axis. One end of the rotating shaft 242 in the Y axis direction is inserted into the axial hole on the first assembly part 247, and the other end in the Y axis direction is inserted into the axial hole on the second assembly part 248. Figure 11 One first limiting surface 244 is provided on the first assembly part 247, and the other first limiting surface 244 is provided on the second assembly part 248. The two first limiting surfaces 244 are arranged opposite to each other along the Y-axis direction and are both perpendicular to the Y-axis direction. Figure 9 The metal swing arm 230, located on the outside relative to the common movable contact 137 along the Y-axis, is sleeved onto the rotating shaft 242 from one end of the rotating shaft 242 closest to the second assembly part 248. During assembly, the axial hole of the metal swing arm 230, located on the inside relative to the common movable contact 137, is first aligned with the axial hole of the first assembly part 247. One end of the rotating shaft 242 is then inserted through the axial holes of the metal swing arm 230 and the first assembly part 247. The axial hole of the metal swing arm 230 located on the outside is then inserted into the rotating shaft 242. The axial hole of the second assembly part 248 is then inserted into the rotating shaft 242. Finally, the second assembly part 248 is secured to the first assembly part 247 using fasteners.

[0143] Also refer to Figure 10 and Figure 11The limiting portion 243 also has two second limiting surfaces 245 arranged opposite to each other along the first axial direction, and the two second limiting surfaces 245 are located between the two first limiting surfaces 244 along the first axial direction. In addition, the two metal swing arms 230 are respectively located between one set of the first limiting surfaces 244 and the second limiting surfaces 245 arranged opposite to each other, so as to be positioned in the first axial direction. In the first embodiment, the outer diameter of the rotating shaft 242 at both ends along the Y-axis direction is smaller, and the outer diameter of the middle part is larger, forming a stepped shaft. The two end positions of the rotating shaft 242 form a stepped structure, and the stepped surface perpendicular to the Y-axis direction in the stepped structure forms the above-mentioned second limiting surface 245. The sizes of the shaft holes on the metal swing arm 230, the first assembly part 247, and the second assembly part 248 are adapted to the sizes of the parts with smaller outer diameters at both ends of the rotating shaft 242. When the metal swing arm 230 is assembled to the rotating shaft 242, the surface of the side wall 228 of the metal swing arm 230 facing the second limiting surface 245 will abut against the second limiting surface 245 on the rotating shaft 242. At the same time, the first limiting surface 244 on the first assembly part 247 or the second assembly part 248 will abut against the surface of the side wall 228 on the other side of the metal swing arm 230, thereby forming a limiting portion 243 through the first limiting surface 244 and the second limiting surface 245, which limits the movement of the two metal swing arms 230 in the Y-axis direction to a very small range without affecting the normal movement of the metal swing arm 230. Figure 9 The limiting portion 243 only cooperates with the shaft connecting portion 231 of the metal swing arm 230.

[0144] It is understood that in the first embodiment, the limiting portion 243 is formed by the rotation shaft 242 and the base 241. In other embodiments, the limiting portion 243 can be completely provided on the rotation shaft 242 or completely provided on the base 241.

[0145] Reference Figures 1 to 4 The pushing portion 200 further includes two pushing units 220 and two rotating members 210. The two pushing units 220 are respectively provided for the first switch group 111 and the second switch group 112. The pushing units 220 include a pushing member 226 and a first elastic member 223. The pushing member 226 includes a pushing body 222 and a connecting body 221. The pushing unit 220 corresponding to the first switch group 111 is connected to two metal swing arms 230 and can swing relative to the mounting base 240 about a second axis. It is used to push the movable contact 131 corresponding to the position of the two metal swing arms 230. The pushing unit 220 can be driven by the driving portion 300 to move, and the overall movement of the pushing unit 220 can be linear or oscillatory. The first elastic member 223 is provided corresponding to the closing direction of the movable contact 131 and is positioned between the pushing member 226 and the movable contact 131 to provide contact pressure to the movable contact 131 when the movable contact 131 closes with the static contact 141.

[0146] In the first embodiment, the structures of the push units 220 used in the first switch group 111 and the second switch group 112 are different, but both push units 220 swing in a predetermined direction, and the Y-axis direction is perpendicular to the tangent of the movement direction of the push unit 220 at at least one position where the push unit 220 moves in the predetermined direction. The movement trajectory of the push unit 220 is an arc line. When the swing amplitude of the push unit 220 is small, the direction of the effective stroke in the swing direction for driving the movable contact 131 to move is the Z-axis direction. When the movable contact 131 is in the third state, that is, when the action portion 135 of the movable contact 131 extends approximately along the X-axis direction, the push unit 220 is approximately at the midpoint of its movement trajectory. The tangent of the movement trajectory at this midpoint is perpendicular to the X-axis direction, that is, the tangent is along the Z-axis direction.

[0147] First, the pushing unit 220 and the auxiliary structure in the first switch group 111 are described. Figure 1 and Figure 2 In the first switch assembly 111, a pusher 226 is used to switch the states of the first and second switches 121 and 122. The pusher 226 includes a pusher body 222 and a connector 221. The pusher body 222 engages with the first elastic member 223 along the Z-axis. The pusher body 222 and the pushed portion 133 of the common movable contact 137 may be provided with connecting posts for engaging with the first elastic member 223. Both ends of the spring-shaped first elastic member 223 may be connected to the connecting posts, thereby preventing the first elastic member 223 from separating from the pusher body 222. The pusher body 222 can be driven to swing the actuating portion 135 of the common movable contact 137 by applying force from the first elastic member 223. The connector 221 can be integrally formed with the pusher body 222 or separately fixedly attached. The connector 221 can cooperate with the rotating member 210 to enable the pushing unit 220 to move as a whole. The pusher body 222 has sidewalls 228 perpendicular to the Y-axis on both sides thereof. The pusher 222 is further provided with a bottom wall and a top wall in the Z-axis direction, and the bottom wall, the top wall and the two side walls 228 enclose the pusher 222 to form a frame-like structure. The connector 221 is provided above the top wall of the pusher 222 in the Z-axis direction.

[0148] Reference Figure 1 and Figure 2 The pushing unit 220 in the first switch group 111 swings relative to the mounting base 240 through the above-mentioned metal swing arm 230 and the rotating shaft 242. The pushing connecting portion 233 is connected to the side wall 228 of the pushing body 222. Figure 8The pusher 222 includes a pusher body 2210 and an embedded part 2211. The pusher body 2210 and the connector 221 are integrally formed and are made of plastic. The embedded part 2211 can be made of metal. The pusher body 2210 and the embedded part 2211 are combined into one piece by injection molding. The two metal swing arms 230 are fixedly connected to the embedded part 2211 by riveting, screwing, or welding, thereby forming a fixed connection between the metal swing arms 230 and the pusher 226. Alternatively, in other embodiments, the pusher 226 in the pusher unit 220 can be entirely made of plastic and fixedly connected to the two metal swing arms 230 by injection molding, riveting, screwing, or bonding to form a whole.

[0149] Reference Figure 1 and Figure 2 , the rotating member 210 is provided with a first matching portion, which can be driven by the driving part 300 and rotate around a first axis parallel to the second axis; the pushing member 226 is provided with a second matching portion that slides and matches with the first matching portion in a direction perpendicular to one axis, so as to be driven by the rotating member 210 to swing around a second axis parallel to the first axis. Moreover, when the pushing unit 220 pushes at least one moving contact 131 and the static contact 141 to close, the direction of the force applied by the second matching portion to the first matching portion passes through or approaches the first axis. Among them, one of the first matching portion and the second matching portion is a sliding groove 227 extending in a direction perpendicular to the first axis, and the other is a sliding pin 212 extending into the sliding groove 227 along the direction of the first axis, and the sliding pin 212 is offset relative to the first axis. In embodiment one, a sliding pin 212 is provided on the rotating member 210, and a sliding groove 227 is provided on the connecting body 221. With reference to Figure 7 and Figure 8 The sliding groove 227 provided on the connecting body 221 extends along the X-axis direction, and its extension length is slightly larger than the diameter of the circle formed by the rotation of the sliding pin 212. Figure 12 The rotating member 210 includes a main shaft 211 connected to the driving part 300 and a sliding pin 212 eccentrically arranged relative to the main shaft 211. The imaginary line passing through the main shaft 211 of the rotating member 210 along the Y-axis direction is the first axis. As the rotating member 210 rotates, the sliding pin 212 slides in the sliding groove 227 and applies force to the pusher 226. The pusher 226 is restricted by the metal swing arm 230 and the rotating shaft 242 and swings roughly in the Z-axis direction, thereby driving the action part 135 of the common moving contact 137 to swing. For example, the sliding pin 212 rotates with the rotating member 210 to Figure 7The common movable contact 137 is now disconnected from both static contacts 141. The rotating member 210 then rotates 90° clockwise, causing the sliding pin 212 to swing 90° about the first axis. The sliding pin 212 is at its highest position along the Z-axis. The actuating portion 135 of the common movable contact 137 now swings upward, and the movable contact 132 on the upper side of the actuating portion 135 along the Z-axis contacts the static contact 142 on the upper side of the common movable contact 137 along the Z-axis, closing the first switch 121. The rotating member 210 then rotates 90° counterclockwise, returning the common movable contact 137 to its third position. Then the rotating part 210 rotates 90° counterclockwise, and the sliding pin 212 swings 90° around the first axis. The sliding pin 212 is located at the lowest position along the Z-axis direction. At this time, the action part 135 of the common moving contact 137 swings downward, and the moving contact 132 located on the lower side of the action part 135 along the Z-axis direction contacts the static contact 142 located on the lower side of the common moving contact 137 along the Z-axis direction, closing the second switch 122.

[0150] Furthermore, when the sliding pin 212 is at its highest and lowest positions along the Z-axis, that is, when the push unit 220 pushes the common movable contact 137 to close with either of the static contacts 141, the direction of the force applied by the sliding slot 227 to the sliding pin 212 is vertical and actually passes through the first axis. Taking into account operational errors, the force applied by the sliding slot 227 to the sliding pin 212 can also be considered to be close to the first axis. The force applied by the sliding slot 227 to the sliding pin 212 here is a positive force or reaction force generated by the push unit 220 as a whole, applied to the movable contact 131, on the rotating member 210. The reaction force occurs when the electromotive repulsion occurs when the switch is closed.

[0151] Reference Figure 1 and Figure 2 The first switch group 111 includes a first switch 121 and a second switch 122 that share a common movable contact 137. Therefore, it includes two first elastic members 223. These two first elastic members 223 are located above and below the pushed portion 133 of the common movable contact 137, respectively, along the Z-axis direction, and abut against the pushed portion 133 of the common movable contact 137. The first elastic members 223 are springs. The pushed portion 133 of the common movable contact 137 and the pushing body 222 can be provided with a socket post for socketing with the first elastic members 223 to ensure the stability of the first elastic members 223. The two first elastic members 223 abut against the pushing body 222 at the bottom and top walls, respectively, allowing the pushing member 226 to apply force to the common movable contact 137 along the Z-axis direction using the first elastic members 223. Furthermore, since two first elastic members 223 are provided in the first switch group 111 , the first elastic members 223 can achieve an overtravel closing effect when the first switch 121 and the second switch 122 are closed.

[0152] Next, the pushing unit 220 and the auxiliary structure in the second switch group 112 are described. Figure 3 and Figure 4 The pushing unit 220 in the second switch group 112 switches the state of the third switch 123 through a pushing member 226. The pushing member 226 includes a pushing body 222 and a connecting body 221. Unlike the pushing unit 220 in the first switch group 111, since the movable contact 131 in the third switch 123 has only one closing direction, the pushing unit 220 is provided with only a first elastic member 223, and the pushing body 222 has no bottom wall. The upper end of the first elastic member 223 is connected to the top wall of the pushing body 222 in a push-butt manner, and the lower end is connected to the actuating portion 135 of the movable contact 131 in a push-butt manner. At the same time, the pushing body 222 is provided with a lap portion 229, which is a flange structure that protrudes from the bottom edges of the two side walls 228 of the pushing body 222 in the Y-axis direction. The action portion 135 of the dynamic contact 131 will overlap the overlapping portion 229 under the force of the first elastic member 223, but after the pushing unit 220 pushes the action portion 135 of the dynamic contact 131 to swing downward along the Z-axis direction until the third switch 123 is closed, the action portion 135 of the dynamic contact 131 will leave the overlapping portion 229 and achieve an overtravel closing effect under the action of the first elastic member 223. The matching structure and relative movement law of the rotating member 210 and the connecting body 221 in the second switch group 112 are the same as those in the first switch group 111, and will not be described in detail here. In other embodiments, the overlapping portion 229 can also be set as a bottom wall connected to the bottom edge of the two side walls 228 along the Z-axis direction, and the bottom wall forms a through hole corresponding to the dynamic contact 132 that passes through the Z-axis direction and is used for avoidance, and the dynamic contact 132 can contact the corresponding static contact 142 through the through hole.

[0153] Furthermore, in the first embodiment, the two push units 220 corresponding to the first and second switch groups 111 and 112 operate in tandem, ensuring that the movable contacts 131 in the first and second switch groups 111 and 112 have the same motion state. Specifically, both push units 220 are driven by the torque transmitted from the drive unit 300 to the rotating member 210, and the two rotating members 210 are in the same position at the same time. For example, when the rotating member 210 linked to the pushing unit 220 corresponding to the first switch group 111 rotates to the highest position along the Z-axis direction, the common moving contact 137 swings upward to close the first switch 121, and at the same time, the moving contact 131 in the second switch group 112 also swings upward under the action of another rotating member 210 on the pushing unit 220 to disconnect the third switch 123; or, when the rotating member 210 linked to the pushing unit 220 corresponding to the first switch group 111 rotates to the lowest position along the Z-axis direction, the common moving contact 137 swings downward to close the second switch 122, and at the same time, the moving contact 131 in the second switch group 112 also swings downward under the action of another rotating member 210 on the pushing unit 220 to close the third switch 123.

[0154] In addition, refer to Figure 3 and Figure 4 The pusher unit 220 in the second switch assembly 112 is swingably connected to the mounting base 240 via a swing block 250 and a rotating shaft 242. Since the movable contact 131 in the second switch assembly 112 does not serve as the common movable contact 137, the swing block 250 can be a solid, flat member extending a certain length along the X-axis. Its width is roughly the same as the width of the movable contact 131. One end of the swing block 250 can be connected to the pusher 226 of the second switch assembly 112, or the two can be integrally formed. The other end is pivotally connected to a rotating shaft 242, which is in turn pivotally connected to the first assembly member 247.

[0155] Reference Figure 1 and Figure 2The positions of the common moving contact 137 and the metal swing arm 230 in the first switch group 111 are further defined. The common moving contact 137 serves as a flexible moving contact 131, and its actuating portion 135 is located between the two metal swing arms 230 of the push portion 200. At least a portion of the connecting portion between the actuating portion 135 and the flexible connecting portion 136 of the flexible moving contact 131 is positioned near the rotation axis 242 in the swing direction of the metal swing arm 230. Specifically, the swinging of the actuating portion 135 of the flexible moving contact 131 relative to its fixed portion 134 is centered around the curved region of the flexible connecting portion 136. Positioning this rotation center, i.e., the connecting portion between the actuating portion 135 and the flexible connecting portion 136, horizontally near the rotation axis 242 of the metal swing arm 230, allows the motion trajectory of the rotation center to more geometrically match the motion trajectory of the action point on the push unit 220, as both swing about the same axis. This configuration ensures that the swing amplitude of the action portion 135 of the movable contact 131 is consistent with that of the pushing unit 220, thereby ensuring that the first elastic member 223 in the pushing unit 220 is evenly stressed, avoiding separation from the preset position due to unbalanced force, and thus improving the reliability of the relay operation.

[0156] Furthermore, at least part of the connecting portion between the actuating portion 135 and the flexible connecting portion 136 of the flexible movable contact 131 is located between the two metal swing arms 230. In the first embodiment, the extensions 232 of the two metal swing arms 230 are separated by a certain distance in an axial direction perpendicular to the swinging direction, forming a receiving space. The actuating portion 135 of the flexible movable contact 131 and the connecting region with the flexible connecting portion 136 are both arranged within this receiving space.

[0157] In addition, refer to Figure 7 and Figure 8 The pusher 226 is provided with a first blocking portion 224, which is arranged corresponding to the closing direction of the movable contact 131 and extends a preset length along the Y-axis direction to contact or approach the movable contact 131 along the closing direction of the movable contact 131 when the movable contact 131 and the static contact 141 are closed, and to limit the distance between the movable contact 131 and the static contact 141. Figure 4 and Figure 7 The number and structure of the first blocking portions 224 differ between the two different pushers 222. The pusher 222 of the first switch assembly 111 has two first blocking portions 224 located on either side of the common movable contact 137 along the Z-axis. The pusher 222 of the second switch assembly 112 has a single first blocking portion 224 located above its movable contact 131 along the Z-axis. The first blocking portion 224 can be integrally formed on the pusher 222.

[0158] The first blocking portion 224 extends along the Y-axis direction for a preset length, and there are two situations. The first situation can be referred to Figure 4 , the inner side of the side wall 228 of the pushing body 222 is provided with a first blocking portion 224 on both sides in the Y-axis direction for limiting the swing range of the moving contact 131 by cooperating with the action portion 135 of the moving contact 131 in the closed state. The first blocking portion 224 here has two parts that can be regarded as independent of each other. Both parts are formed on the pushing body 222 and have a certain thickness in the Y-axis direction. That is, the first blocking portion 224 extends a preset length in the first direction. It should be understood that in Figure 4 In the example provided, the pushing body 222 includes two parts (defined as a first pushing part and a second pushing part respectively), wherein the first pushing part is fixedly connected to the connecting body 221. For example, the first pushing part and the connecting body 221 are both plastic and molded as one piece, and are used for the first elastic member 223 to abut. The second pushing part has two connecting walls and a bottom wall. The two connecting walls are spaced apart along the Y-axis direction and are respectively fixedly connected to the two sides of the first pushing part along the Y-axis direction and constitute two side walls 228; the bottom wall is connected to the bottom edges of the two connecting walls along the Z-axis direction and constitutes a lap portion 229. For the second case, please refer to Figure 7 and Figure 8 , the portion along the Y-axis between the two side walls 228 of the pusher 222 forms a wall-like structure extending a long distance along the Y-axis. This wall-like structure forms a first blocking portion 224 extending a predetermined length in the Y-axis. Furthermore, in the second embodiment, the two edges of the wall-like first blocking portion 224 along the Y-axis can be connected to the two side walls 228 of the pusher 222. In other words, the first blocking portion 224 partially blocks the opening of the pusher 222 along the X-axis, which is originally formed by the side walls 228, the top wall, and the bottom wall.

[0159] Based on the above, it can be understood that Figure 7 and Figure 8 In this embodiment, the pusher 226 is provided with side walls 228 on either side of the movable contact 131 along the first direction. The first blocking portion 224 is disposed between the two side walls 228 along the first direction. The first blocking portion 224 has a wall-like structure, with its two edges along the first direction correspondingly connected to the two side walls 228. Alternatively, as in the second switch assembly 112, the first blocking portion 224 can also be disposed perpendicular to or at an angle to the first direction.

[0160] It should be noted that, although the first blocking portion 224 is limited to extend a preset length along the Y-axis direction, this only indicates that the first blocking portion 224 as a whole has an extension tendency in the Y-axis direction, and does not mean that the first blocking portion 224 can only extend along the Y-axis direction. For example, the first blocking portion 224 can extend obliquely relative to the Y-axis direction, but as a whole it still extends in the Y-axis direction, and has a component of extension along the Y-axis direction.

[0161] In embodiment one, the first blocking portion 224 provided on the pushing member 226 in the first switch group 111 extends in a wall shape and is located between the moving contact 132 and the pushed portion 133 of the common moving contact 137 along the X-axis direction, and the pushing member 226 is provided with a first blocking portion 224 on the static contacts 141 on both sides corresponding to the two closing directions of the common moving contact 137.

[0162] As a preferred embodiment, when the movable contact 131 is in one of the disconnected positions separated from the static contact 141, at least a portion of the extended surface of the first blocking portion 224 (e.g., one of the side surfaces of the first blocking portion 224 along the X-axis) forms an angle with a reference plane defined by the Y-axis and the Z-axis. In other words, the extended surface of the wall-shaped first blocking portion 224 can be arranged to be inclined at a certain angle relative to the reference plane. For example, if the first blocking portion 224 is located above the movable contact 131 along the Z-axis, the projection of the lower edge of the first blocking portion 224 perpendicular to the Z-axis is a straight line at a certain angle to the Y-axis.

[0163] Alternatively, when the movable contact 131 is in one of the disconnected positions separated from the static contact 141, at least a portion of the extending surface of the first blocking portion 224 is perpendicular to the X-axis direction. Figure 7 In the structure shown, the first blocking portion 224 is located above the movable contact 131 along the Z-axis direction as an example. At this time, the projection of the lower edge of the first blocking portion 224 perpendicular to the Z-axis direction is a straight line parallel to the Y-axis direction.

[0164] In addition, the pusher 226 of the first switch assembly 111 is further provided with a second blocking portion 225. The second blocking portion 225 is arranged to correspond to the closing direction of the common movable contact 137. When the pusher 226 drives the common movable contact 137 to disconnect from the static contact 141 on either side, the second blocking portion 225 blocks the movement of the common movable contact 137 in the closing direction toward the static contact 141 on that side, thereby ensuring that the common movable contact 137 is disconnected from the static contact 141 on that side. In the first embodiment, the first blocking portion 224 of the common movable contact 137 corresponding to any closing direction serves as the second blocking portion 225 corresponding to the other closing direction.

[0165] The structure of the driving portion 300 will be described in detail below.

[0166] Reference Figure 1 and Figure 3 The driving part 300 is used to drive the rotating part 210 of the pushing part 200 of the relay to rotate around the first axis to change the state of the contact part 100 of the relay. How the pushing part 200 cooperates with the rotating part 210 and how the state of the contact part 100 changes have been described in detail above and will not be repeated here.

[0167] Reference Figure 13 and Figure 14 The drive portion 300 mainly includes a motor 310, a transmission mechanism 320, and a receiving member 330. The transmission mechanism 320 is driven by the motor 310 and includes at least two drive output terminals 321; each drive output terminal 321 is connected to a corresponding rotating member 210 to drive the corresponding rotating member 210 to rotate. Specifically, the drive output terminal 321 can be a countersunk hole with a rotation-stopping shape formed on the transmission mechanism 320. The main shaft 211 of the rotating member 210 can be inserted into the countersunk hole and form a rotation-stopping fit with the drive output terminal 321 relative to the first axis. The rotation member 210 can be fixed in the direction of the first axis by a conventional retaining spring, etc. It should be understood that the drive output terminal 321 here is a functional designation of a part having a certain physical structure to achieve cooperation with the rotating member 210, but this does not mean that the structure, size, etc. of the drive output terminal 321 are limited.

[0168] Reference Figure 13 In the first embodiment, the accommodating part 330 accommodates the motor 310 and the transmission mechanism 320 of the driving part 300, and defines two paving portions 331 located on the outside thereof; the positions of the two paving portions 331 respectively correspond to the output-directing sides of the two driving output ends 321 and allow the two driving output ends 321 to be exposed, and at least part of the pushing part 200 is respectively located in the two paving portions 331. Specifically, the accommodating part 330 can be made of plastic material, and is surrounded by a shell wall located on the peripheral side to form an internal chamber, which is used to accommodate the motor 310 and the transmission mechanism 320, etc. At the same time, the shell wall on the peripheral side can protect and fix the motor 310 and the transmission mechanism 320. The motor 310 can be directly fixed on the accommodating part 330, and the rotating shaft 242 of each gear in the transmission mechanism 320 can also be pivotally connected to the accommodating part 330. Refer to Figure 1 、 Figure 3 and Figure 13The projection of the accommodating member 330 perpendicular to the Z-axis has an irregular shape. It can be considered that the accommodating member 330, on this projection, is roughly rectangular or square with two diagonally cutout portions. These two cutout portions form a relatively empty clearance portion 331 extending along the Z-axis. This clearance portion 331 runs through the entire accommodating member 330 along the Z-axis, and the pushing unit 220 in the pushing portion 200 can be placed in this clearance portion 331. Simultaneously, the drive output end 321 of the transmission mechanism 320 extends from the shell wall of the accommodating member 330 at the locations of the two clearance portions 331, thereby mating with the pushing unit 220 located in the clearance portion 331 via the rotating member 210. The movement of the drive output end 321 can be transmitted to the pushing unit 220 via the rotating member 210, thereby driving the pushing unit 220 and the movable contact member 131 of the contact portion 100 to achieve switching of the contact state of the switch.

[0169] In the first embodiment, the transmission mechanism 320 includes two drive output terminals 321. The output directions of the two drive output terminals 321 are opposite to each other along a first direction, and the two drive output terminals 321 are staggered in a second direction; the second direction is perpendicular to the first direction. The output direction of the drive output terminal 321 is the direction of the end of the drive output terminal 321 that is connected to the rotating member 210. For example, referring to Figure 13 The drive output terminal 321 located on the left side of the X-axis is located below the accommodating member 330 in the Y-axis direction, and its output is directed downward in the Y-axis direction. The drive output terminal 321 located on the right side of the X-axis is located above the accommodating member 330 in the Y-axis direction, and its output is directed upward in the Y-axis direction. In a second direction perpendicular to the first direction, i.e., the X-axis direction, the two drive output terminals 321 are staggered. That is, their axes are parallel but separated by a certain distance along the X-axis. This distance is determined by the size of the accommodating member 330 and the distance between the two clearance portions 331.

[0170] Reference Figure 14 and Figure 15 , on the projection plane perpendicular to the first direction, at least part of the projection of the motor 310 is located between the projections of the two drive output terminals 321; and the motor 310 is close to the two drive output terminals 321 along the first direction and avoids the output-directed sides of the two drive output terminals 321. In addition, the motor 310 is located on one side of one of the drive output terminals 321 along the second direction, and on the side of the other drive output terminal 321 that is not directed to the output along the first direction. Among them, the projection plane perpendicular to the first direction, that is, perpendicular to Figure 14The projection surface in the Y-axis direction is arranged on the projection surface, and the projection positions of the two drive output terminals 321 are arranged along the X-axis direction. At the same time, at least part of the projection of the motor 310 is located between the projections of the two drive output terminals 321. That is, the projection of the motor 310 can be completely located between the projections of the two drive output terminals 321 without overlapping with the projections of the two drive output terminals 321, or partially overlap with the projections of the two drive output terminals 321. However, no matter how the position of the motor 310 in the X-axis direction is adjusted, the motor 310 needs to be as close to the two drive output terminals 321 as possible in the Y-axis direction to improve the structural compactness of the drive part 300. However, it should be noted that the motor 310 should be kept away from the output-pointing side of the two drive output terminals 321. For example, referring to FIG. Figure 14 For the drive output end 321 on the left side in the X-axis direction, its output is directed downward in the Y-axis direction. At the same time, the motor 310 is also located below the drive output end 321 in the Y-axis direction. At this time, the motor 310 needs to avoid the drive output end 321, that is, slightly away from the drive output end 321 in the X-axis direction; but for the drive output end 321 on the right side in the X-axis direction, its output is directed upward in the Y-axis direction. Since the motor 310 is located below the drive output end 321 in the Y-axis direction, the position of the motor 310 will not interfere with the output direction of the drive output end 321. Therefore, the motor 310 can be closer to the drive output end 321 in the X-axis direction relative to the other drive output end 321.

[0171] Reference Figure 14 The transmission mechanism 320 includes two output gears 322 spaced apart along the second direction, with their rotational axes parallel to the first direction. Two drive output ends 321 are coaxially connected to opposite sides of the two output gears 322 along the first direction. Specifically, the two gears located at opposite ends of the transmission mechanism 320 along the X-axis form the output gears 322. The axes of the two output gears 322 are pivotally connected to the accommodating member 330 along the Y-axis. The axes of the two output gears 322 continue to extend along the Y-axis to form drive output ends 321 that at least partially protrude from the outer surface of the housing wall of the accommodating member 330. The axes of the drive output ends 321 are coaxial with the rotational axis of the output gears 322 within which they are located. One of the drive output ends 321 is located on the downward side of the output gear 322 along the Y-axis, and the other drive output end 321 is located on the upward side of the output gear 322 along the Y-axis. In the first embodiment, the drive output end 321 and the output gear 322 are integrally formed. In other embodiments, the drive output end 321 and the output gear 322 may be provided separately and then fixedly connected as one. The above statement "the drive output end 321 is connected to the output gear 322" includes both of the above situations.

[0172] The transmission mechanism 320 includes a first gear set 325 and two second gear sets 326 that are directly or indirectly meshed with the first gear set 325. The first gear set 325 is driven by the motor 310, and the two second gear sets 326 transmit torque to the two drive output ends 321 respectively. Figure 14 , which excludes the gear components of the first gear set 325 and the second gear set 326 through the dotted box.

[0173] Reference Figure 14 and Figure 15 , the rotation axis of the output end of the motor 310 is perpendicular to both the first direction and the second direction, that is, the rotation axis of the output end of the motor 310 is parallel to the Z-axis direction; the first gear set 325 includes at least one first gear 327; the rotation axis of the first gear 327 is parallel to the rotation axis of the output end of the motor 310, and the first gear 327 used as the input power gear 329 in the first gear set 325 directly or indirectly forms a parallel axis gear meshing with the output end of the motor 310; the two second gear sets 326 are located on both sides of the first gear set 325 along the second direction, and both include an equal number of second gears 328; the rotation axis of the second gear 328 is parallel to the first direction, and the second gear 328 used as the input power gear 329 in the second gear set 326 directly or indirectly forms an intersecting axis gear meshing or a staggered axis gear meshing with the first gear 327 used as the output power gear 3210 in the first gear set 325; the two driving output ends 321 are respectively connected to the second gears 328 used as the output power gear 3210 in the two second gear sets 326. Specifically, in the first embodiment, the first gear set 325 includes two first gears 327, and the two second gear sets 326 each include two second gears 328. One of the first gears 327 in the first gear set 325 meshes with the output shaft of the motor 310 and receives torque, while the other first gear 327 meshes with the first gear and simultaneously engages with the two second gears 328 in a staggered gear arrangement, both of which can specifically adopt a worm gear structure. One of the second gears 328 in the second gear set 326 meshes with the first gear 327 in the first gear set 325, which serves as the output power gear 3210, while the other second gear 328 meshes with the first gear and simultaneously connects to the drive output end 321. Through the coordination of the first gear set 325 and the second gear set 326, the torque output direction of the motor 310 is changed, and the motor 310 occupies a smaller area in the Y-axis direction.

[0174] In addition, refer to Figure 14The transmission mechanism 320 includes a first portion 323 and a second portion 324. The first portion 323 includes a plurality of gears arranged along the second direction. Two drive output ends 321 are provided on predetermined gears of the first portion 323 and extend outwardly along the axis of the gears. The first portion 323 is located between the two drive output ends 321 in the first direction. The second portion 324 is located to one side of the first portion 323 in the first direction and includes a plurality of gears for transmitting the torque of the motor 310 to the first portion 323. In the first embodiment, the first portion 323 includes all second gears 328 of the two second gear sets 326, as well as the first gear 327 of the first gear set 325 that meshes with the second gear 328. The second gear 328 of the first gear set 325 that meshes with the output shaft of the motor 310 belongs to the second portion 324.

[0175] Refer to 14 and Figure 15 , the rotation axis of the output end of the motor 310 is perpendicular to both the first direction and the second direction, so that the motor 310 can be arranged in the space of the accommodating part 330 in the Z-axis direction. In addition, the output end of the motor 310 remains in the stopped position when the motor 310 stops rotating. Specifically, the motor 310 with the in-position locking function can be a stepper motor or a DC motor with a built-in brake. After the motor 310 drives the rotating part 210 to move the pushing part 226 to the predetermined closed or open position, even in the power-off state, the motor 310's own step holding torque or mechanical brake can prevent the rotating part 210 from rotating accidentally.

[0176] The relay also includes a housing that houses the contact portion 100, the push portion 200, and the drive portion 300. The relay housing can be integrally fixed to the mounting base 240 and the receiving member 330. The fixing method can be fastener connection, welding, clamping, etc.

[0177] Example 2

[0178] The difference between the second embodiment and the first embodiment lies in that the structures of the first gear set 325 and the second gear set 326 in the transmission mechanism 320 are different.

[0179] Reference Figure 16 and Figure 17The rotation axis of the output end of the motor 310 is perpendicular to both the first direction and the second direction, that is, the rotation axis of the output end of the motor 310 is parallel to the Z-axis direction; the first gear set 325 includes at least one first gear 327; the rotation axis of the first gear 327 is perpendicular to the rotation axis of the output end of the motor 310, and the first gear 327 used as the input power gear 329 in the first gear set 325 directly or indirectly forms an intersecting axis gear meshing or a staggered axis gear meshing with the output end of the motor 310; the two second gear sets 326 are located on both sides of the first gear set 325 along the second direction, and both include an equal number of second gears 328; the rotation axis of the second gear 328 is parallel to the first direction, and the second gear 328 used as the input power gear 329 in the second gear set 326 directly or indirectly forms a parallel axis gear meshing with the first gear 327 used as the output power gear 3210 in the first gear set 325, and the two driving output ends 321 are respectively connected to the second gears 328 used as the output power gear 3210 in the two second gear sets 326.

[0180] Specifically, in the second embodiment, the first gear set 325 includes three first gears 327, and the two second gear sets 326 each include two second gears 328. One first gear 327 in the first gear set 325 meshes with the output shaft of the motor 310 in a staggered gear arrangement and receives torque. Specifically, the two first gears 327 in the first gear set 325 can employ a worm gear structure. Another first gear 327 in the first gear set 325 meshes with the first gear 327 directly meshing with the motor 310 on one side and with the last first gear 327 on the other side. The two second gear sets 326 are distributed on either side of the first gear set 325 along the second direction. Each second gear set 326 includes a second gear 328 meshing with the last first gear 327 in the first gear set 325, and the other second gear 328 is connected to the drive output end 321. The coordination of the first gear set 325 and the second gear set 326 changes the torque output direction of the motor 310, reducing the footprint of the motor 310 in the Y-axis direction.

[0181] Example 3

[0182] The difference between Example 3 and Example 1 and Example 2 is that the transmission mechanism 320 includes a first reduction assembly and a second reduction assembly composed of a plurality of mutually meshing gears. The first reduction assembly and the second reduction assembly are both driven by the motor 310 and transmit torque to the corresponding drive output end 321 respectively.

[0183] Specifically, the first reduction assembly and the second reduction assembly in the transmission mechanism 320 are relatively independently arranged and may include the same or different numbers of gears. Each of the first reduction assembly and the second reduction assembly has a gear that directly engages with the motor 310 to receive torque, and each has a gear connected to the drive output end 321 to output torque to the rotating member 210. The layout of the first reduction assembly and the second reduction assembly can refer to the layout of the first and second embodiments and will not be described in detail here.

[0184] In the above embodiment, since the driving portion 300 adopts two independent driving output terminals 321, different driving output terminals 321 are used to output power to different pushing portions 200 respectively. Compared with the method in which the same driving output terminal 321 simultaneously drives one rotating member 210 and drives the movement of all the movable contacts 131 of the switches, the length of the rotating member 210 can be made shorter, avoiding the need to adopt a single and slender rotating member 210 or the driving component connected thereto, thereby significantly reducing the risk of deformation or vibration caused by excessive component size or uneven force, improving the reliability of the drive and the stability of the mechanical structure, ensuring that the transmission of mechanical motion is not prone to failure, and protecting the service life of the relay; at the same time, since the size of the rotating member 210 can be designed to be shorter, the rotating member 210 can be directly supported by the driving output terminal 321 without the need to set up an additional support structure on the housing structure of the relay, thereby reducing the volume occupied, making the arrangement of the internal structure of the relay more compact, and promoting the miniaturization of the overall structure of the relay.

[0185] In at least one embodiment, the transmission mechanism 320 includes two drive output ends 321 , the output directions of the two drive output ends 321 are opposite along a first direction, and the two drive output ends 321 are staggered in a second direction; the second direction is perpendicular to the first direction.

[0186] Since the two driving output terminals 321 are staggered in the second direction perpendicular to the first direction, the pushing parts 200 corresponding to the two driving output terminals 321 can also be staggered in the second direction, avoiding the problem that the two pushing parts 200 need to avoid each other and require a larger installation space due to the two driving output terminals 321 being arranged on the same side in the second direction; and since the output directions of the two driving output terminals 321 are opposite to each other along the first direction, the two pushing parts 200 corresponding to the two driving output terminals 321 are arranged in the first direction, which can reasonably utilize the space in the first direction to arrange the two pushing parts 200 and avoid the need to occupy too much space in the second direction. In addition, this arrangement is also conducive to reducing the space occupied by the two pushing parts 200 in the first direction as much as possible by reducing the distance between the two driving output terminals 321 along the first direction, so that the size of the entire relay in the first and second directions can be reduced as much as possible and meet the design requirements of miniaturization.

[0187] In at least one embodiment, on a projection plane perpendicular to the first direction, at least a portion of the projection of the motor 310 is located between the projections of the two drive output ends 321 , and is close to the two drive output ends 321 along the first direction and avoids the output-pointing sides of the two drive output ends 321 .

[0188] Since the projection of the motor 310 on the projection plane perpendicular to the first direction is at least partially located between the projections of the two drive output terminals 321, the installation of the motor 310 will not exceed the range of the two drive output terminals 321 along the second direction, so as to further ensure that space in the second direction is saved. Since the motor 310 is arranged close to the two drive output terminals 321 along the first direction, the occupied space in the first direction can be well controlled, and the installation of the motor 310 in the first direction makes good use of the space in the first direction formed by the need to set the pushing part 200 outside the drive output terminal 321, thereby realizing reasonable space utilization and compact arrangement. Since the motor 310 is installed away from the output-pointing side of the two drive output terminals 321, more activity space is freed up for the pushing part 200 outside the drive output terminal 321 to avoid motion interference.

[0189] In at least one embodiment, the motor 310 is located on one side of one driving output end 321 along the second direction, and is located on a side of the other driving output end 321 facing away from the output direction along the first direction.

[0190] Since the two drive output terminals 321 are arranged along the second direction, and the motor 310 is located on one side of one of the drive output terminals 321 along the second direction and on the side of the other drive output terminal 321 along the first direction opposite to the output direction, this layout allows the motor 310 to be cleverly arranged in the empty space defined by the two drive output terminals 321 and the two drive parts 300 in the first direction and the second direction, avoiding motion interference between the motor 310 and the drive output terminals 321 or the transmission mechanism 320 in the main spatial dimension, further improving the internal space utilization of the drive part 300 and even the entire relay, and helping to achieve a compact design.

[0191] Based on the perpendicular relationship between the second direction and the first direction, on the basis of the staggered layout of the drive output ends 321, the relative position relationship between the two drive output ends 321 and the motor 310 presents a more regular orthogonal layout feature. This clear 90-degree spatial relationship makes the positioning reference of each component clear, reduces the uncertainty in design and manufacturing, and helps to simplify the gear transmission design inside the transmission mechanism 320. For example, a more direct straight tooth meshing method can be adopted, reducing the complex intermediate transmission or non-standard gears that may be required to adapt to any angle, thereby reducing the transmission level, achieving more efficient power transmission and reducing transmission errors; at the same time, this orthogonal layout makes the connection between the drive output end 321 and the rotating part 210 it drives more standard and symmetrical, which is conducive to ensuring the accuracy and consistency of the driving force transmission, and also facilitates the manufacture, assembly and calibration of components.

[0192] In at least one embodiment, the transmission mechanism 320 includes two output gears 322; the two output gears 322 are arranged at intervals along the second direction, and the rotation axes are parallel to the first direction; the two drive output ends 321 are coaxially connected to the opposite sides of the two output gears 322 along the first direction.

[0193] Since the two output gears 322 for connecting the drive output ends 321 are arranged along the second direction, it is beneficial for the transmission mechanism 320 to utilize the space located between the two drive output ends 321 in the first direction and extending along the second direction to reasonably arrange the gear set and transmit reliable torque to the two drive output ends 321.

[0194] In at least one embodiment, the transmission mechanism 320 includes a first reduction assembly and a second reduction assembly consisting of a plurality of mutually meshing gears. The first reduction assembly and the second reduction assembly are both driven by the motor 310 and transmit torque to two drive output ends 321 respectively.

[0195] Since the transmission mechanism 320 includes a first reduction assembly and a second reduction assembly composed of a plurality of mutually meshing gears based on the staggered layout of the drive output end 321, and both are driven by the motor 310 and transmit torque to the two drive output ends 321 respectively, this design of dual independent reduction assemblies allows independent parameterized design and optimization of the respective reduction assemblies according to the load characteristics driven by each drive output end 321 (such as the required torque, speed, motion smoothness, etc.). For example, a component with a larger reduction ratio can be configured for the path with a larger load, and a component with a smaller reduction ratio can be configured for the path with a smaller load, so that the load can be distributed more evenly to the motor 310, avoiding the motor 310 from being overloaded due to a single drive and excessively high comprehensive load, or sacrificing the performance of a certain path due to adapting to different loads.

[0196] In at least one embodiment, the transmission mechanism 320 includes a first gear set 325 and two second gear sets 326 that are directly or indirectly engaged with the first gear set 325. The first gear set 325 is directly or indirectly driven by the motor 310, and the two second gear sets 326 respectively transmit torque to the two drive output ends 321.

[0197] Based on the staggered layout of the drive output end 321, the transmission mechanism 320 includes a first gear set 325 directly driven by the motor 310 and two second gear sets 326 that are directly or indirectly engaged with the first gear set 325. The two second gear sets 326 respectively transmit torque to the two drive output ends 321. This single-input (motor 310 drives the first gear set 325) and dual-output (two second gear sets 326 output respectively) gear distribution structure uses a common first gear set 325 as a power distribution point to simplify the transmission path from the motor 310 to the two output ends 321. Compared with two completely independent complex transmission chains, its structure is more compact and the transmission chain is shorter, thereby reducing energy loss and cumulative errors in the intermediate links. The transmission efficiency is high, and the power of the motor 310 can be reliably and synchronously distributed to the two output paths.

[0198] In at least one embodiment, the rotation axis of the output end of the motor 310 is perpendicular to the first direction and the second direction; the first gear set 325 includes at least one first gear 327; the rotation axis of the first gear 327 is parallel to the rotation axis of the output end of the motor 310, and the two directly or indirectly form a parallel axis gear meshing; the two second gear sets 326 are located on both sides of the first gear set 325 along the second direction, and both include an equal number of second gears 328; the rotation axis of the second gear 328 is parallel to the first direction, and the second gear 328 used as the input power gear 329 in the second gear set 326 directly or indirectly forms an intersecting axis gear meshing or a staggered axis gear meshing with the first gear 327 used as the output power gear 3210 in the first gear set 325; the two driving output ends 321 are respectively connected to the second gears 328 used as the output power gear 3210 in the two second gear sets 326.

[0199] Since the mutual relationship between the rotation axes of the first gear 327 and the second gear 328 and the rotation axis of the output end of the motor 310 are defined, a clear and easy-to-use power transmission path solution is provided. The transmission is first performed through the engagement of parallel axis gears, and then the power transmission direction is changed by the engagement of intersecting axes or staggered axes gears to adapt to the specific spatial position relationship between the motor 310 and the drive output end 321, and is conducive to the overall miniaturization design of the relay.

[0200] In at least one embodiment, the rotation axis of the output end of the motor 310 is perpendicular to both the first direction and the second direction; the first gear set 325 includes at least one first gear 327; the rotation axis of the first gear 327 is perpendicular to the rotation axis of the output end of the motor 310, and the first gear 327 used as the input power gear 329 in the first gear set 325 directly or indirectly forms an intersecting axis gear meshing or a staggered axis gear meshing with the output end of the motor 310; the two second gear sets 326 are located on both sides of the first gear set 325 along the second direction, and both include an equal number of second gears 328; the rotation axis of the second gear 328 is parallel to the first direction, and the second gear 328 used as the input power gear 329 in the second gear set 326 directly or indirectly forms a parallel axis gear meshing with the first gear 327 used as the output power gear 3210 in the first gear set 325, and the two driving output ends 321 are respectively connected to the second gears 328 used as the output power gear 3210 in the two second gear sets 326.

[0201] By defining a different relationship between the rotational axes of first gear 327 and second gear 328 and their relationship to the rotational axis of the output end of motor 310, an alternative power transmission path solution is provided. First, intersecting or staggered axis gear meshing changes the power direction and achieves a larger transmission ratio. Subsequently, parallel axis gear meshing distributes the power to the two output ends 321. This solution can adapt to different motor 310 layout requirements and provides diverse options for transmission ratio design.

[0202] In at least one embodiment, the transmission mechanism 320 includes a first part 323 and a second part 324; the first part 323 includes a plurality of gears arranged along the second direction; the two drive output ends 321 are provided on predetermined gears of the first part 323 and extend outward along the axial direction of the gear; the first part 323 is located between the two drive output ends 321 in the first direction; the second part 324 is located on one side of the first part 323 in the first direction, and the second part 324 includes a plurality of gears, which are used to transmit the torque of the motor 310 to the first part 323.

[0203] The transmission mechanism 320 includes a first portion 323 and a second portion 324. The first portion 323 includes several gears arranged along the third direction. The two drive output ends 321 are provided on predetermined gears of the first portion 323 and extend outwardly along the axis of the gears. The first portion 323 is located between the two drive output ends 321 in the first direction. This structure cleverly arranges the gear set (first portion 323) directly forming or driving the output ends 321 in the transmission mechanism 320 within the gap space formed in the first direction due to the misalignment of the drive output ends 321, rather than further expanding the size of the drive portion 300 in the third direction. This effectively utilizes the space between the two drive output ends 321, which is beneficial to the mechanical balance and structural stability of the transmission mechanism 320 at the two drive output ends 321. The second portion 324 is responsible for effectively transmitting the torque of the motor 310 to the first portion 323. This design of functional module division and optimized spatial layout of the transmission mechanism 320 improves the overall compactness of the drive portion 300 and facilitates load balance between the two drive output ends 321 in terms of torque transmission.

[0204] In at least one embodiment, the rotation axis of the output end of the motor 310 is perpendicular to both the first direction and the second direction.

[0205] Since the rotation axis of the output end of the motor 310 is perpendicular to the first direction (the direction in which the outputs of the two drive output ends 321 are directed) and the second direction (the direction perpendicular to the first direction, which is referenced by the positional relationship of the main part of the motor 310 relative to the drive output end 321), this means that the rotation axis of the motor 310 (i.e., the direction of the output end of the motor 310) is perpendicular to the plane formed by the first direction and the second direction. The motor 310 can be arranged in a manner that minimizes its projected area on the plane (for example, the length direction of the motor 310 is perpendicular to the plane). This orientation allows the drive part 300 to have a smaller size in a specific dimension (usually the dimension corresponding to the length of the motor 310), which has positive significance for the compact design of the overall drive unit, especially in terms of height or thickness control, making the drive part 300 easier to integrate into applications with limited space.

[0206] In at least one embodiment, the output end of the motor 310 is held in a stopped position when the motor 310 stops rotating. Since the output end of the motor 310 is held in a stopped position when the motor 310 stops rotating, this self-locking or holding feature is typically achieved by the internal structure of the motor 310 (e.g., the cogging torque of the permanent magnet synchronous motor 310, the detent torque of the stepper motor 310) or an external braking mechanism. Thus, when the motor 310 completes its driving task and stops receiving power or control signals, its output end is able to resist the reverse torque generated by an external load (e.g., the reaction force from the relay contact spring or the load's own weight), preventing unintended displacement or reversal. This allows the relay's movable contact 132 to reliably maintain its target position after switching to that position, eliminating the need for the motor 310 to continuously consume energy to maintain the position. This significantly reduces the relay's standby power consumption, extends the life of the motor 310, ensures the stability of the relay's state, effectively prevents malfunctions caused by vibration or minor disturbances, and helps the contact portion 100 resist electromotive repulsion during a fault current.

[0207] At least in one embodiment, it further includes a receiving member 330, which receives the motor 310 and the transmission mechanism 320 of the driving portion 300 and defines two clearance portions 331 located on its outer side; the positions of the two clearance portions 331 correspond to the output-directing sides of the two driving output ends 321 and allow the two driving output ends 321 to be exposed, and at least part of the pushing portion 200 is located in the two clearance portions 331 respectively.

[0208] Since it also includes a container 330, which accommodates the motor 310 and the transmission mechanism 320 of the driving part 300, it provides a closed protective space for these core driving components that are precise and easily affected by the external environment, and can effectively prevent the invasion of dust, moisture, corrosive gases or other external harmful factors, thereby improving the durability of the driving part 300 and the working reliability in various complex and even harsh environments, and avoiding the metal debris generated during the operation of the driving part 300 from affecting the contact performance of the moving contact 132 and the static contact 142 of the contact part 100; at the same time, the container 330 is defined on its The two outer paving portions 331 have positions that precisely correspond to the positions of the two drive output terminals 321, so that the drive output terminals 321 can smoothly extend out of the accommodating component 330, and provide necessary movement space and a clear mechanical connection interface for at least part of the pushing portion 200 located at the two paving portions 331. This design not only achieves effective isolation between the driving portion 300 and the pushing portion 200, which is beneficial to the modular assembly and subsequent maintenance of the relay, but also ensures that the pushing member 226 can move smoothly within its predetermined driving stroke without interfering with the housing of the driving portion 300.

[0209] The present invention also provides a relay, which includes a contact part 100, a pushing part 200 and a driving part 300 as claimed in claim 1; the contact part 100 includes at least two switch groups, each switch group independently has a switch or has at least two switches, and the switch includes a moving contact 131 and a static contact 141; the pushing part 200 includes at least two rotating parts 210, and each rotating part 210 is driven by each driving output end 321 of the driving part 300 to drive the moving contact 131 and the static contact 141 in each switch group to close or open.

[0210] Since the present relay includes the aforementioned driving part 300, the driving part 300 realizes the compactness of the driving unit, the reliability and stability of the driving through its unique dual output terminal 321 design and the optimized layout of the motor 310 and the transmission mechanism 320, and directly imparts these advantages to the entire relay; the driving part 300 drives the pushing part 200 to drive the moving contact 131 and the static contact 141 in the contact part 100 to close or open, so the relay can not only achieve a more compact overall structure, but also effectively improve the driving instability, slow response or easy damage caused by the rotating part 210 of the driving part 300 or the pushing part 200 being too long, uneven force, etc., thereby improving the overall working reliability and service life of the relay; at the same time, since the contact part 100 includes an independently controllable switch group, the relay can simultaneously or separately control at least two independent circuit paths or different branches of the same circuit, meeting more complex circuit control requirements.

[0211] In at least one embodiment, the pushing part 200 includes two pushing members 226, which are respectively connected to the two rotating members 210 and respectively connected to the moving contact members 131 in the first switch group 111 and the second switch group 112; when the rotating member 210 is driven by the driving output end 321 of the driving part 300, it rotates around a first axis parallel to the first direction, and the pushing member 226 is suitable for being driven by the rotating member 210 to move back and forth in a straight line or swing around the second axis to at least two preset positions, and the movement direction of the pushing member 226 or the direction of driving the moving contact member 131 to move is a third direction, and the third direction is perpendicular to both the first direction and the second direction.

[0212] Since the pushing part 200 includes two pushing members 226, the two pushing members 226 are respectively connected to the two rotating members 210, and are respectively connected to the moving contacts 131 in the first switch group 111 and the second switch group 112. This one-to-one connection method ensures that the two independent drives generated by the driving part 300 can be accurately transmitted to their respective switch groups, avoiding the problem of uneven force distribution that may exist when a single pushing member 226 drives multiple switch groups; through the reciprocating linear motion or swinging of the pushing member 226, the rotational motion of the rotating member 210 can be effectively converted into the driving action required by the switch group, thereby realizing precise operation of the moving contact 131 in the contact part 100, and ensuring the stability and reliability of the relay switching between different working states.

[0213] In at least one embodiment, the rotating member 210 is provided with a first mating portion; the pushing member 226 is provided with a second mating portion that slidably engages with the first mating portion; one of the first mating portion and the second mating portion is a sliding groove 227 whose extension direction is perpendicular to the first axis, and the other is a sliding pin 212 that extends into the sliding groove 227 along the direction of the first axis, and the sliding pin 212 is offset relative to the first axis.

[0214] Since the rotating member 210 is provided with a first matching portion, the pushing member 226 is provided with a second matching portion that slides with the first matching portion, and one of the two is a sliding groove 227, and the other is an offset sliding pin 212, forming an eccentric sliding mechanism. When the rotating member 210 rotates around the first axis, the sliding pin 212 fixed on the rotating member 210 and deviated from the first axis will slide in the sliding groove 227 on the pushing member 226, or the eccentric groove on the rotating member 210 drives the pin on the pushing member 226 to move. This eccentric design enables the continuous rotational motion of the rotating member 210 to be efficiently and accurately converted into a reciprocating linear motion or a swinging motion of a predetermined angle of the pushing member 226 in the third direction, thereby realizing the precise control of the driving part 300 on the pushing part 200 and the effective motion form conversion, thereby ensuring the smoothness and repeatability of the driving action.

[0215] In at least one embodiment, the extension direction of the sliding slot 227 is the second direction; the first switch group 111 includes two switches; the second switch group 112 includes one switch; when the sliding pin 212 is located on one side of the second axis along the third direction, one of the switches in the first switch group 111 and the switch in the second switch group 112 are closed; when the sliding pin 212 is located on the other side of the second axis along the third direction, the other switch in the first switch group 111 is closed, and the switch in the second switch group 112 is disconnected; when the sliding pin 212 is located on one side of the second axis along the second direction, all switches in the first switch group 111 and the switches in the second switch group 112 are disconnected.

[0216] Because the movable contact 131 and the stationary contact 141 in the first and second switch groups 111 and 112 are closed or engaged, the sliding pin 212 is located on either side of the first axis along the third direction. This limits the effective displacement of the sliding pin 212 to the third direction, which is roughly the same as the direction of motion of the pusher 226. This further confines the movement of the movable mechanism to the existing space, thereby further utilizing the space created by the improved drive portion 300 and facilitating the compactness and miniaturization of the overall relay structure. The first switch group 111 includes two switches, and the second switch group 112 includes one switch. The interaction between the sliding pin 212 and the sliding slot 227 allows the contact portion 100 to have three different contact states, enabling the implementation of more complex switching logic combinations. For example, the flexible configuration of specific series, parallel, or selective switching circuits, as well as full disconnection, provides the necessary hardware foundation for specific applications such as intelligent switching between series and parallel states of battery packs.

[0217] In at least one embodiment, the relay further includes a housing, which houses the contact portion 100 , the pushing portion 200 , and the driving portion 300 .

[0218] Since the relay also includes a housing, the housing accommodates the contact portion 100, the push portion 200 and the drive portion 300, providing a unified external package and structural basis for all functional components inside the relay, playing an overall physical protection role, and preventing damage to internal components from external impacts, pollution, etc. The description of the above specification and embodiments is used to explain the scope of protection of the present invention, but does not constitute a limitation on the scope of protection of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field, combined with common knowledge, ordinary technical knowledge in this field and / or existing technology, can obtain modifications, equivalent replacements or other improvements to the embodiments of the present invention or part of the technical features through logical analysis, reasoning or limited experiments, which should be included in the scope of protection of the present invention.

Claims

1. A driving part for driving a rotating member of a pushing part of a relay to rotate about a first axis to change the state of a contact part of the relay, characterized in that: include: Motor; and a transmission mechanism, which is driven by the motor and includes at least two drive output ends; Each of the driving output ends is connected to a corresponding rotating member to drive the corresponding rotating member to rotate.

2. A driving part according to claim 1, characterized in that: The transmission mechanism includes two driving output ends, the output directions of the two driving output ends are opposite to each other along a first direction, and the two driving output ends are staggered in a second direction; the second direction is perpendicular to the first direction.

3. A driving part according to claim 2, characterized in that On a projection plane perpendicular to the first direction, at least a portion of the motor projection is located between the projections of the two drive output ends; and the motor approaches the two drive output ends along the first direction and avoids the output-directing sides of the two drive output ends.

4. A driving part according to claim 3, characterized in that: The motor is located on one side of one of the driving output ends along the second direction, and is located on a side of the other driving output end facing away from the output direction along the first direction.

5. A driving part according to claim 3, characterized in that: The transmission mechanism includes two output gears; the two output gears are arranged at intervals along the second direction, and their rotation axes are parallel to the first direction; the two driving output ends are coaxially connected to the opposite sides of the two output gears along the first direction.

6. A driving part according to claim 2, characterized in that: The transmission mechanism includes a first reduction assembly and a second reduction assembly consisting of a plurality of mutually meshing gears. The first reduction assembly and the second reduction assembly are both driven by the motor and transmit torque to the two drive output ends respectively.

7. A driving part according to claim 2, characterized in that: The transmission mechanism includes a first gear set and two second gear sets that are directly or indirectly meshed with the first gear set. The first gear set is driven by the motor, and the two sets of the second gears respectively transmit torque to the two drive output ends.

8. A driving part according to claim 7, characterized in that: The rotation axis of the output end of the motor is perpendicular to the first direction and the second direction; the first gear set includes at least one first gear; the rotation axis of the first gear is parallel to the rotation axis of the output end of the motor, and the first gear used as the input power gear in the first gear set directly or indirectly forms a parallel axis gear meshing with the output end of the motor; the two second gear sets are located on both sides of the first gear set along the second direction, and both of them include an equal number of second gears; the rotation axis of the second gear is parallel to the first direction, and the second gear used as the input power gear in the second gear set directly or indirectly forms an intersecting axis gear meshing or a staggered axis gear meshing with the first gear used as the output power gear in the first gear set; the two driving output ends are respectively connected to the second gears used as output power gears in the two second gear sets.

9. A driving part according to claim 7, characterized in that: The rotation axis of the output end of the motor is perpendicular to the first direction and the second direction; the first gear set includes at least one first gear; the rotation axis of the first gear is perpendicular to the rotation axis of the output end of the motor, and the first gear used as the input power gear in the first gear set directly or indirectly forms an intersecting axis gear meshing or a staggered axis gear meshing with the output end of the motor; the two second gear sets are located on both sides of the first gear set along the second direction, and both of them include an equal number of second gears; the rotation axis of the second gear is parallel to the first direction, and the second gear used as the input power gear in the second gear set directly or indirectly forms a parallel axis gear meshing with the first gear used as the output power gear in the first gear set, and the two driving output ends are respectively connected to the second gears used as output power gears in the two second gear sets.

10. A driving part according to claim 6 or 7, characterized in that: The transmission mechanism includes a first part and a second part; the first part includes a plurality of gears arranged along the second direction; the two drive output ends are provided on predetermined gears of the first part and extend outward along the axial direction of the gear; the first part is located between the two drive output ends in the first direction; the second part is located on one side of the first part in the first direction, and the second part includes a plurality of gears, which are used to transmit the torque of the motor to the first part.

11. A driving portion according to claim 10, characterized in that: The rotation axis of the output end of the motor is perpendicular to both the first direction and the second direction.

12. A driving part according to claim 1, characterized in that: The output end of the motor is kept at a stopped position when the motor stops rotating.

13. A driving part according to claim 2, characterized in that: It also includes a receiving part, which receives the motor and transmission mechanism of the driving part and defines two yielding parts located on the outside thereof; the positions of the two yielding parts respectively correspond to the output pointing sides of the two driving output ends and allow the two driving output ends to be exposed, and at least part of the pushing part is respectively located at the two yielding parts.

14. A relay, characterized in that: It comprises a contact portion, a pushing portion and the driving portion as claimed in claim 1; the contact portion comprises at least two switch groups, each of the switch groups independently has a switch or has at least two switches, and the switches include a moving contact and a static contact; the pushing portion comprises at least two rotating members, each of the rotating members is driven by each driving output end of the driving portion to respectively drive the moving contact and the static contact in each of the switch groups to close or open.

15. A relay, characterized in that: It includes a contact part, a pushing part and a driving part as described in any one of claims 2 to 13; the contact part includes a first switch group and a second switch group, the first switch group and the second switch group each independently have a switch or have at least two switches, and the switch includes a moving contact and a static contact; the pushing part includes two rotating parts, and the two rotating parts are respectively driven by the two driving output ends of the driving part to drive the moving contact and the static contact in the first switch group and the second switch group to close or open.

16. A relay as claimed in claim 15, characterized in that: The pushing portion further comprises two pushing units, the two pushing units being connected to the two rotating members respectively and connected to the moving contacts in the first switch group and the second switch group respectively; When the rotating member is driven by the driving output end of the driving part, it rotates around a first axis parallel to the first direction; the pushing unit is suitable for being driven by the rotating member to move back and forth linearly or swing around a second axis parallel to the first axis to at least two preset positions, and the movement direction of the pushing unit or the direction of driving the moving contact member to move is a third direction, and the third direction is perpendicular to both the first direction and the second direction.

17. A relay as claimed in claim 16, characterized in that: The rotating member is provided with a first matching portion; the pushing member is provided with a second matching portion that slides with the first matching portion, and the second matching portion is perpendicular to the first axis; one of the first matching portion and the second matching portion is a sliding groove whose extension direction is perpendicular to the first axis, and the other is a sliding pin extending into the sliding groove along the direction of the first axis, and the sliding pin is offset relative to the first axis.

18. A relay as claimed in claim 17, characterized in that: The sliding slot extends in the second direction; the first switch group includes two switches; the second switch group includes one switch; when the sliding pin is located on one side of the first axis along the third direction, one of the switches in the first switch group and the switch in the second switch group are closed; When the sliding pin is located on the other side of the first axis along the third direction, the other switch in the first switch group is closed, and the switch in the second switch group is opened; When the sliding pin is located on one side of the first axis along the second direction, all the switches in the first switch group and the switches in the second switch group are disconnected.

19. The relay according to any one of claims 15 to 18, wherein: The relay further includes a housing that accommodates the contact portion, the pushing portion, and the driving portion.

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