A driving portion, a relay

Abstract

The utility model discloses a drive part, relay, this drive part is used for driving the rotation of the push portion rotation piece of relay around the first axis to change the state of the contact portion of relay, and it includes: motor, and transmission mechanism, it is driven by the motor, and includes at least two drive output ends, each drive output end is connected with a rotation piece respectively to drive the rotation of corresponding rotation piece. Adopt the technical scheme can improve the problem of too big, easy to fail and short life of the structure of the part of motor as drive part.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a driving part and a relay. Background Technology

[0002] Relays in the prior art are generally used to receive excitations or signals from external circuits to control the on / off state of the external circuit or one of its branches. A relay generally includes a driving part, a pushing part, and a contact part. The driving part receives excitations or signals from the external circuit to drive the pushing part. The driving part generally includes a coil assembly and an armature assembly. The coil assembly drives the armature assembly to move between two positions based on different signals or excitations. The contact part generally includes a moving contact and a stationary contact. The pushing part is generally driven by the armature assembly and connected to the moving contact to push the moving contact to close with the stationary contact.

[0003] Currently, some relays use a motor as the drive source. This type of drive provides controllable output torque and precise stroke control, with smooth operation and minimal engagement shock. However, relays using this type of drive often suffer from problems such as excessive size, limited application, susceptibility to failure, and short service life when used to drive multiple switch groups. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background art and provide a driving part and a relay that can improve the problems of excessive size, easy failure and short life of relays that use a motor as part of the driving part.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A driving part for driving a rotating member of a relay's pushing part to rotate about a first axis to change the state of the relay's contact part, comprising: a motor; and a transmission mechanism driven by the motor, including at least two drive output terminals; each of the drive output terminals is respectively connected to one of the rotating members to drive the corresponding rotating member to rotate.

[0007] The applicant discovered through research that at least part of the reason why "using a motor as part of the drive component in the prior art leads to excessively large relay size, easy failure, and short lifespan" is that the drive component usually uses a rotating part to drive multiple switch groups arranged sequentially in a preset direction. This requires extending the length of the output end of the drive component or the rotating part connected to the output end. In order to maintain the smooth rotation of the output end of the drive component 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 in the corresponding arrangement direction, resulting in an excessively large size, which is not conducive to the compact and miniaturized design of the relay. Furthermore, since the extended length of the output end of the drive component or the rotating part is prone to uneven stress and deformation, the movement of the rotating part is prone to jamming after long-term use, resulting in a limited lifespan of the relay.

[0008] Because this drive section uses two independent drive output terminals, each outputting power to a different driving part, compared to the method where a single drive output terminal simultaneously drives a rotating component and moves all the moving contacts of the switches, the length of the rotating component can be reduced. This avoids the need for a single, slender rotating component or a drive component connected to it, significantly reducing the risk of deformation or vibration caused by excessively long components or uneven stress. This improves the reliability of the drive and the stability of the mechanical structure, ensuring that the transmission of mechanical motion is less prone to failure and guaranteeing the service life of the relay. At the same time, because the rotating component can be designed to be shorter, it can be directly supported by the drive output terminal without the need for an additional support structure on the relay housing, thereby reducing the volume occupied and allowing for a more compact arrangement of the internal structure of the relay, thus promoting the miniaturization of the overall relay structure.

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

[0010] Because the two drive outputs are staggered in the second direction perpendicular to the first direction, the push parts corresponding to the two drive outputs can also be staggered in the second direction. This avoids the problem of needing a large installation space because the two drive outputs are arranged on the same side in the second direction, which would require the two push parts to avoid each other. Furthermore, because the output directions of the two drive outputs are opposite in the first direction, the two push parts corresponding to the two drive outputs are arranged in the first direction. This makes reasonable use of the space in the first direction to arrange the two push parts and avoids occupying too much space in the second direction. In addition, this arrangement also helps to minimize the space occupied by the two push parts in the first direction by reducing the distance between the two drive outputs in the first direction, so that the entire relay can be reduced in size in both the first and second directions 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 outputs, and is close to the two drive outputs along the first direction while avoiding the output pointing side of the two drive outputs.

[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 ends, the installation of the motor will not extend beyond the range of the two drive output ends along the second direction, thus further ensuring space is saved in the second direction. Since the motor is set close to the two drive output ends along the first direction, the space occupied in the first direction can be well controlled. Moreover, 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 the pushing part outside the drive output ends, realizing reasonable use of space and compact layout. Furthermore, since the motor is installed away from the output pointing side of the two drive output ends, more space is freed up for the pushing part outside the drive output ends, avoiding motion interference.

[0013] In at least one embodiment, the motor is located on one side of one of the drive output terminals along the second direction and on the opposite output side of the other drive output terminal along the first direction.

[0014] Since the two drive output terminals are arranged along the second direction, and the motor is located on one side of one drive output terminal along the second direction and on the other drive output terminal along the first direction away from the output direction, this layout allows the motor to be cleverly arranged in the free space defined by the two drive output terminals and the two drive parts in the first and second directions. This avoids motion interference between the motor and the drive output terminal or transmission mechanism in the main spatial dimensions, further improving the utilization rate of the drive part and even the entire relay internal space, and helps to achieve a compact design.

[0015] Furthermore, based on the perpendicular relationship between the second direction and the first direction, the relative positions of the two drive output ends and the motor exhibit a more regular orthogonal layout characteristic 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 spur gear meshing method can be adopted, reducing the need for complex intermediate transmissions or non-standard gears that may be required to adapt to arbitrary angles. This reduces the number of transmission levels, achieves more efficient power transmission, and reduces 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 drive force transmission, and also facilitates the manufacturing, assembly, and calibration of components.

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

[0017] Since the two output gears used to connect the drive output ends are arranged along the second direction, it is advantageous for the transmission mechanism to rationally arrange the gear set in the space between the two drive output ends in the first direction and extending along the second direction, and to reliably transmit 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 meshing gears. Both the first reduction assembly and the second reduction assembly are driven by the motor and transmit torque to the two drive output terminals respectively.

[0019] Based on the staggered layout of the drive output ends, the transmission mechanism includes a first reduction component and a second reduction component composed of several meshing gears. Both are driven by a motor and transmit torque to the two drive output ends respectively. This design of dual independent reduction components allows for independent parametric design and optimization of each reduction component according to the load characteristics driven by each drive output end (such as 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. This allows the load to be distributed more evenly to the motor, avoiding overload of the motor due to driving a single load or excessively high overall load, or sacrificing the performance of a certain path to adapt to different loads.

[0020] In at least one embodiment, the transmission mechanism includes a first gear set and two second gear sets that mesh directly or indirectly 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 that mesh directly or indirectly with the first gear set. These 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 separately) gear distribution structure simplifies the transmission path from the motor to the two output ends by using a common first gear set as the power distribution point. Compared with two completely independent and complex transmission chains, its structure is more compact and the transmission chain is shorter, thereby reducing energy loss and accumulated errors in intermediate links, resulting in higher transmission efficiency and the ability to reliably and synchronously distribute the motor's power to the two output paths.

[0022] 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; 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 shaft gear mesh; 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 in the second gear set used as the input power gear and the first gear in the first gear set used as the output power gear directly or indirectly form an intersecting shaft gear mesh or a staggered shaft gear mesh; the two drive output ends are respectively connected to the second gears in the two second gear sets used as output power gears.

[0023] By defining the relationship between the rotational axes of the first and second gears and their relationship with the rotational axis of the motor's output end, a clear and easy-to-use power transmission path scheme is provided. First, transmission is achieved through the meshing of parallel shaft gears, and then the direction of power transmission is changed by the meshing of intersecting or staggered shaft gears to adapt to the specific spatial positional relationship between the motor and the drive output end, which is also beneficial for the miniaturization design of the relay as a whole.

[0024] 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; 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 in the first gear set used as an input power gear directly or indirectly forms an intersecting shaft gear mesh or a staggered shaft gear mesh with the output end of the motor; 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 in the second gear set used as an input power gear directly or indirectly forms a parallel shaft gear mesh with the first gear in the first gear set used as an output power gear, and the two drive output ends are respectively connected to the second gears in the two second gear sets used as output power gears.

[0025] By defining an alternative relationship between the rotational axes of the first and second gears, as well as their relationship with the rotational axis of the motor's output, an alternative power transmission path is provided. First, the power direction is changed through intersecting or staggered shaft gear meshing, achieving a larger transmission ratio. Then, power is distributed to the two outputs through parallel shaft gear meshing. This scheme 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 a second direction; two drive output ends are disposed on predetermined gears of the first part and extend outward along the axial direction of the gears; the first part is located between the two drive output ends in a 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 for transmitting 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 located on the predetermined gears of the first part and extend outward along the axis of the gears. The first part is located between the two drive output ends in the first direction. This structure cleverly arranges the gear set (first part) that is directly formed or drives the output ends in the transmission mechanism within the gap space formed in the first direction due to the misalignment of the drive output ends, rather than further expanding the size of the drive part in the third direction. This effectively utilizes 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 terms of torque transmission.

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

[0029] Since the rotation axis of the motor's output end is perpendicular to both the first direction (the direction in which the outputs of the two drive output ends point) and the second direction (the direction perpendicular to the first direction, which is the reference for the positional relationship of the motor body relative to the drive output ends), this means that the rotation axis of the motor (i.e., the direction in which the motor output ends point) is perpendicular to the plane formed by the first and second directions. The motor can be arranged in a way that minimizes its projected area on this plane (e.g., the length direction of the motor is perpendicular to the plane). This orientation allows the drive part to achieve a smaller size in a specific dimension (usually the dimension corresponding to the length of the motor), which is of positive significance for the compact design of the overall drive unit, especially in terms of height or thickness control, making it easier to integrate the drive part into space-constrained applications.

[0030] In at least one embodiment, the output terminal of the motor remains in a stopped position when the motor stops rotating.

[0031] Since the output terminal 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 or the positioning torque of a stepper motor) or an external braking mechanism. This allows the output terminal to resist the reverse torque generated by external loads (such as the reaction force from the relay contact spring or the load's own weight) after the motor completes its driving task and stops supplying power or control signals. Unexpected displacement or reversal will not occur, so that the moving contact of the relay can reliably maintain this 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 power consumption of the relay and extends the motor's lifespan, but also ensures the stability of the relay state, effectively preventing malfunctions caused by vibration or slight disturbances, and helping the contact part resist the electric repulsive force when a fault current occurs.

[0032] In at least one embodiment, the device further includes a receiving member that houses the motor and transmission mechanism of the driving portion and defines two clearance portions located on its outer side; the positions of the two clearance portions correspond to the output pointing sides of the two driving output terminals and expose the two driving output terminals, and at least a portion of the pushing portion is located in the two clearance portions respectively.

[0033] Because it also includes a housing that houses the motor and transmission mechanism of the drive section, it provides a closed protective space for these precision and environmentally sensitive core drive components. This effectively prevents the intrusion of dust, moisture, corrosive gases, or other harmful external factors, thereby improving the durability of the drive section and its operational reliability in various complex and even harsh environments. It also prevents metal debris generated during the operation of the drive section from affecting the contact performance of the moving and stationary contacts. At the same time, the housing has two clearance portions defined on its outer side. The positions of these two clearance portions precisely correspond to the positions of the two drive output ends, allowing the drive output ends to extend smoothly outside the housing. It also provides the necessary space for movement and a clear mechanical connection interface for at least a portion of the push portion located in these two clearance portions. This design not only achieves effective isolation between the drive section and the push portion, which is beneficial for the modular assembly and subsequent maintenance of the relay, but also ensures that the push portion can move smoothly within its predetermined drive stroke without interfering with the housing of the drive section.

[0034] This utility model also provides a relay, which includes a contact portion, a push portion, and a drive portion; the contact portion includes at least two switch groups, each of the switch groups independently having one switch or having at least two switches, each switch including a moving contact and a stationary contact; the push portion includes at least two rotating members, each of the rotating members being driven by a drive output terminal of the drive portion, so as to respectively drive the moving contact and the stationary contact in each of the switch groups to close or open.

[0035] Because this relay includes the aforementioned drive section, which achieves compactness, reliability, and stability of the drive unit through its unique dual-output design and optimized motor and transmission mechanism layout, these advantages are directly transferred to the entire relay. By driving the push section through the drive section to close or open the moving and stationary contacts in the contact section, this relay not only achieves a more compact overall structure but also effectively improves problems such as unstable drive, slow response, or easy damage caused by excessively long rotating parts or uneven force in the drive or push section, thus enhancing the overall reliability and service life of the relay. Furthermore, because the contact section includes independently controllable switch groups, 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.

[0036] In at least one embodiment, the pushing part further includes two pushing units, which are respectively connected to the two rotating members and respectively connected to the moving contacts in the first switch group and the second switch group; when the rotating member is driven by the driving output end of the driving part, it rotates about a first axis parallel to the first direction; the pushing unit is adapted to be driven by the rotating member to reciprocate linear motion or swing about a second axis parallel to the first axis to at least two preset positions, and the direction of motion of the pushing unit or the direction of driving the moving contact is a third direction, which is perpendicular to both the first direction and the second direction.

[0037] Since the pushing part includes two pushing units, which are respectively connected to the two rotating parts and to the moving contacts in the first and second switch groups, this one-to-one connection 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 oscillation of the pushing unit, the rotational motion of the rotating parts can be effectively converted into the driving action required by the switch groups, realizing the precise operation of the moving contacts 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, the second mating portion being perpendicular to the first axis; one of the first mating portion and the second mating portion is a sliding groove extending perpendicular to the first axis, and the other is a sliding pin extending into the sliding groove along the direction of the first axis, the sliding pin being offset relative to the first axis.

[0039] Since the rotating component has a first mating part and the pushing component has a second mating part that slides with the first mating part, and one of them is a sliding groove and the other is an offset sliding pin, an eccentric sliding mechanism is formed. When the rotating component rotates around the first axis, the sliding pin fixed on the rotating component and offset from the first axis will slide in the sliding groove on the pushing component, or the eccentric groove on the rotating component will drive the pin on the pushing component to move. This eccentric design enables the continuous rotational motion of the rotating component to be efficiently and accurately converted into the reciprocating linear motion of the pushing component in a third direction or the oscillating motion of the pushing component at a predetermined angle. This achieves precise control of the driving component over the pushing component and effective motion form conversion, ensuring the smoothness and repeatability of the driving action.

[0040] In at least one embodiment, the extension direction of the sliding groove is a 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 open; 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 open.

[0041] Because the sliding pin is located on both sides of the first axis along a third direction when the moving and stationary contacts in the first and second switch groups are closed or opened, the effective displacement space of the sliding pin is limited to the third direction. This direction is roughly the same as the movement direction of the pusher, which can further restrict the movement of the movable mechanism within the existing space. This allows for further utilization of the space created by the improvement of the drive part, which is beneficial to the compactness and miniaturization of the overall relay structure. The first switch group includes two switches, and the second switch group includes one switch. Through the cooperation of the sliding pin and the sliding groove, the contact part has three different contact states, which can realize more complex switching logic combinations. For example, it can flexibly form specific forms of series circuits, parallel circuits, or selective switching circuits, as well as realize the full disconnection function, providing the necessary hardware foundation for specific applications such as intelligent switching of battery pack series and parallel states.

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

[0043] Since the relay also includes a housing that accommodates the contact portion, the pushing portion, and the driving portion, it provides a unified external encapsulation 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, contamination, etc. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a three-dimensional structural diagram of the relay in Example 1;

[0046] Figure 2 This is a schematic diagram of the internal structure of the relay in Embodiment 1;

[0047] Figure 3 This is a three-dimensional structural diagram of the relay in Embodiment 1 from another perspective;

[0048] Figure 4 This is a schematic diagram of the internal structure of the relay in Embodiment 1 from another perspective;

[0049] Figure 5 This is a schematic diagram of the relay's X-axis direction in Example 1;

[0050] Figure 6 This is a schematic diagram of the relay's Z-axis direction in Example 1;

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

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

[0053] Figure 9 This is a schematic diagram of the Z-axis direction of the pushing part in Embodiment 1;

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

[0055] Figure 11 This is a schematic diagram of the limiting part in Embodiment 1;

[0056] Figure 12 This is a schematic diagram of the rotating component in Embodiment 1;

[0057] Figure 13This is a schematic diagram of the Z-axis direction of the driving part in Embodiment 1;

[0058] Figure 14 This is a schematic diagram of the internal structure of the drive section in Embodiment 1 along the Z-axis.

[0059] Figure 15 This is a three-dimensional schematic diagram of the internal structure of the drive section in Embodiment 1;

[0060] Figure 16 This is a schematic diagram of the Z-axis direction of the internal structure of the drive section in Embodiment 2;

[0061] Figure 17 This is a three-dimensional schematic diagram of the internal structure of the drive section in Embodiment 2.

[0062] Explanation of key figure labels:

[0063] Contact portion 100; First switch group 111; Second switch group 112; First switch 121; Second switch 122; Third switch 123; Moving contact 131; Moving contact 132; Pushed part 133; Fixed part 134; Actuating part 135; Flexible connection part 136; Common moving contact 137; Stationary contact 141; Stationary contact 142; Common stationary contact 143;

[0064] Pushing part 200; Rotating part 210; Main shaft 211; Sliding pin 212; Pushing unit 220; Connecting body 221; Pushing body 222; First elastic element 223; First blocking part 224; Second blocking part 225; Pushing part 226; Sliding groove 227; Side wall 228; Overlapping part 229; Pushing body 2210; Embedded part 2211; Metal swing arm 230; Shaft connecting part 231; Extension part 232; Push Moving connection 233; First part 234; Second part 235; Assembly hole 236; Snap-fit ​​interface 237; Mounting base 240; Base body 241; Rotating shaft 242; Limiting part 243; First limiting surface 244; Second limiting surface 245; Journal 246; First assembly 247; Second assembly 248; Fitting groove 249; Connector 2410; Positioning protrusion 2411; Positioning hole 2412; Swing block 250;

[0065] Drive section 300; motor 310; transmission mechanism 320; drive output end 321; output gear 322; first part 323; second part 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; clearance part 331. Detailed Implementation

[0066] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0067] Terminology Definition

[0068] In the claims and description of this utility model, unless otherwise specified, the use of terms such as "first," "second," or "third" is to distinguish different objects, rather than to describe a specific order.

[0069] Unless otherwise specified, in the claims and description of this utility model, the terms "X-axis direction", "Y-axis direction", "Z-axis direction", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the purpose of simplifying the description, and do not imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation.

[0070] Unless otherwise specified, the terms "fixed connection" or "fixed connection" used in the claims and description of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, that is, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection by other devices or components.

[0071] Unless otherwise specified, the use of the terms "comprising," "having," and variations thereof in the claims and description of this utility model is intended to mean "including but not limited to."

[0072] In the claims and description of this utility model, unless otherwise specified, the terms "first direction", "second direction" and "third direction" correspond to the three-dimensional coordinate system defined in this utility model, 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 this utility model, unless otherwise specified, the term "motor" shall be interpreted as: a power source in the drive section used to convert electrical energy into mechanical energy, whose output torque drives the transmission mechanism. In this utility model, the motor is preferably able to maintain its output terminal in a stopped position when it stops rotating, so as to maintain the state of the relay.

[0074] In the claims and description of this utility model, unless otherwise specified, the term "transmission mechanism" shall be interpreted as: a power transmission component located between the motor and the drive output end, which receives power from the motor and transmits, decelerates or distributes it through internal gears and other components, and finally outputs motion and torque to at least two drive output ends.

[0075] In the claims and description of this utility model, unless otherwise specified, the term "drive output end" shall be interpreted as: the final output part of the transmission mechanism, which is directly or indirectly connected to the rotating part of the driving part, and is used to output the torque and rotational motion transmitted by the transmission mechanism to the rotating part. In this utility model, it specifically refers to at least two independent output interfaces.

[0076] In the claims and description of this utility model, unless otherwise specified, the term "gear" shall be interpreted as: a mechanical element in a transmission mechanism that is used to transmit motion and power and has teeth on its edges.

[0077] In the claims and description of this utility model, unless otherwise specified, the term "output gear" shall be interpreted as: a specific gear in the transmission mechanism that is coaxially connected to the drive output end, which directly determines the rotational motion of the drive output end.

[0078] In the claims and description of this utility model, unless otherwise specified, the terms "first deceleration assembly" and "second deceleration assembly" shall be interpreted as: two independent transmission paths in the transmission mechanism, each consisting of several meshing gears, both driven by a motor, and respectively transmitting the decelerated and torque-increased power to the corresponding drive output end.

[0079] In the claims and description of this utility model, unless otherwise specified, the terms "first gear set" and "second gear set" shall be interpreted as: gear sets within the transmission mechanism divided according to the direction of power flow. "First gear set" is a gear set that is directly or indirectly driven by a motor and plays a power distribution role; "second gear set" refers to two independent gear sets that mesh with the first gear set and respectively transmit power to the corresponding drive output end.

[0080] In the claims and description of this utility model, unless otherwise specified, the term "input power gear" shall be interpreted as: a gear in a gear set or reduction assembly that receives power from a previous power source (such as a motor or other gear).

[0081] In the claims and description of this utility model, unless otherwise specified, the term "output power gear" shall be interpreted as: a gear in a gear set or reduction assembly that transmits power to the next stage component (such as other gears or drive output end).

[0082] In the claims and description of this utility model, unless otherwise specified, the term "parallel shaft gear meshing" shall be interpreted as: a meshing method in which the rotation axes of two meshing gears are parallel to each other in space.

[0083] In the claims and description of this utility model, unless otherwise specified, the term "intersecting shaft gear meshing" shall be interpreted as: a meshing method in which the rotation axes of two meshing gears intersect each other at a point in space.

[0084] In the claims and description of this utility model, unless otherwise specified, the term "interlaced shaft gear meshing" shall be interpreted as: a meshing method in which the rotation axes of two meshing gears are neither parallel nor intersecting in space.

[0085] In the claims and description of this utility model, unless otherwise specified, the terms "first part" and "second part" shall be interpreted as: two regions that functionally and spatially divide the transmission mechanism. "First part" is a gear set including two output gears arranged along a second direction, located between the two drive output ends in a first direction; "second part" is a gear set for transmitting the torque of the motor to the first part, located on one side of the first part in the first direction.

[0086] In the claims and description of this utility model, unless otherwise specified, the term "accommodating element" shall be interpreted as: a housing structure used to accommodate and protect the motor and transmission mechanism of the drive part, providing support and protection for the internal components.

[0087] In the claims and description of this utility model, unless otherwise specified, the term "give way" shall be interpreted as: a space or opening reserved for a specific component on the outside of the receiving member, and in this utility model specifically refers to the area defined by the exposure of the drive output end and the installation and movement of the pushing part.

[0088] In the claims and description of this utility model, unless otherwise specified, the term "switch" shall be interpreted as: "a switch includes a moving contact and a stationary contact," and should be understood as each switch must have a moving contact and a stationary contact for closing or opening the switch. When two or more switches share a single moving contact (i.e., a common moving contact), the shared moving contact can be closed or opened with the stationary contacts of these switches respectively.

[0089] In the claims and description of this utility model, unless otherwise specified, the term "moving contact" shall be interpreted as: a component that moves entirely or partially by being pushed by a pushed part to close or open with a stationary contact. In this utility model, when "moving contact" is used to describe its position, orientation, or relative relationship with the limiting part, it should be understood to specifically refer to its movable main body, especially its actuating part for contacting the stationary contact.

[0090] In the claims and description of this utility model, unless otherwise specified, the term "static contact" shall be interpreted as: a component that remains fixed in position relative to the movement of the moving contact. In this utility model, when "static contact" is used to describe spatial distribution or relative position with respect to the moving contact, it shall be understood to specifically refer to the portion of the static contact that is in contact with the moving contact.

[0091] In the claims and description of this utility model, unless otherwise specified, the terms "moving direction of the moving contact" and "closing direction of the moving contact" should be interpreted as follows: "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 two stationary contacts. "Closing direction of the moving contact" should be understood as unidirectional, referring to the direction of motion of the moving contact when it moves toward and finally contacts a specific stationary 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 oscillating motion.

[0092] In the claims and description of this utility model, unless otherwise specified, the term "mounting base" shall be interpreted as: a fixed component used to support and provide a rotational reference for two metal swing arms, which may include a base body and a rotating shaft.

[0093] In the claims and description of this utility model, unless otherwise specified, the term "metal swing arm" shall be interpreted as: a pair of sheet-like members made of metal material that can swing about a second axis, used to guide the movement of the push unit and to provide auxiliary support for the push unit.

[0094] In the claims and description of this utility model, unless otherwise specified, the term "rotating shaft" shall be interpreted as: a shaft component used to support the metal swing arm and enable it to rotate, the central axis of which is the second axis.

[0095] In the claims and description of this utility model, unless otherwise specified, the terms "first pushing portion" and "second pushing portion" shall be interpreted as: regions on the metal swing arm divided according to their relative positions with the moving contact. The "first pushing portion" is the section in the first axial direction opposite to the energized portion of the moving contact, where the distance between the two metal swing arms is relatively large; the "second pushing portion" is the section in the first axial direction not opposite to the energized portion of the moving contact, where the distance between the two metal swing arms is relatively small.

[0096] In the claims and description of this utility model, unless otherwise specified, the terms "shaft connection," "extension," and "push connection" shall be interpreted as referring to three functional sections divided along the length of the metal swing arm. The "shaft connection" is the section connected to the rotating shaft; the "extension" is the section extending from the shaft connection, providing space for the moving contact to accommodate and move; and the "push connection" is the section connected to the push unit.

[0097] In the claims and description of this utility model, unless otherwise specified, the term "limiting part" shall be interpreted as: a structure disposed on the mounting base 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 description of this utility model, unless otherwise specified, the terms "first limiting surface" and "second limiting surface" shall be interpreted as: surfaces on the limiting part used for axial positioning. The "first limiting surface" consists of two surfaces arranged facing each other along the first axial direction, used to limit the overall range of motion of the two metal swing arms; the "second limiting surface" consists of two surfaces arranged opposite each other along the first axial direction, cooperating with the first limiting surface for precise positioning of a single metal swing arm.

[0099] In the claims and description of this utility model, unless otherwise specified, the terms "assembly hole" and "clamping interface" shall be interpreted as: a structure on the metal swing arm for elastically engaging with the rotating shaft. "Assembly hole" is a hole through which the rotating shaft passes; "clamping interface" is a slit connecting to the assembly hole and having an opening size smaller than the maximum inner diameter of the assembly hole, allowing the two sides of the metal swing arm clamping interface to elastically open and engage with the rotating shaft.

[0100] In the claims and description of this utility model, unless otherwise specified, the term "elastic snap-fit" shall be interpreted as: a connection method in which a component (such as a metal swing arm with a snap-fit ​​interface) undergoes temporary elastic deformation to pass over a specific part of another component (such as a pivot), and then returns to its original state to achieve locking.

[0101] In the claims and description of this utility model, unless otherwise specified, the term "journey" shall be interpreted as: a section on the shaft with a smaller outer diameter for mating with the mounting hole of the metal swing arm, wherein the stepped surfaces on both sides of the neck can form a limiting surface.

[0102] In the claims and description of this utility model, unless otherwise specified, the term "base" shall be interpreted as: the main body of the mounting base used to support the rotating shaft and other components. In this utility model, the base includes a first fitting and a second fitting that are fixedly connected to each other.

[0103] In the claims and description of this utility model, unless otherwise specified, the terms "first assembly" and "second assembly" shall be interpreted as: two separable components constituting the seat body, which are fixedly connected by fasteners to facilitate the assembly of the pivot and the metal swing arm.

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

[0105] In the claims and description of this utility model, unless otherwise specified, the term "push member" shall be interpreted as: the core rigid component within the push unit, which carries the functional structures such as the first limiting part and the second limiting part, and is used to transmit the driving force from the drive part, and to provide support for the first elastic member.

[0106] In the claims and description of this utility model, unless otherwise specified, the terms "push body" and "embedded part" shall be interpreted as: two components of different materials constituting the push unit. "Push body" usually refers to the main body made of plastic; "embedded part" refers to a metal component pre-embedded in the push body to enhance the connection strength with the metal swing arm.

[0107] In the claims and description of this utility model, unless otherwise specified, the term "first elastic element" shall be interpreted as: an elastic element (such as a spring) provided in the actuating 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 stationary contact are closed.

[0108] In the claims and description of this utility model, unless otherwise specified, the term "first blocking part" should be interpreted as: a structure provided on the pusher member for limiting the separation of the moving contact from the stationary contact due to the electrodynamic repulsive force of the fault current through direct physical contact when the moving contact is closed. Its position is on the side of the moving contact's disconnection direction (the moving contact facing away from the corresponding stationary contact) (e.g., above the moving contact). Only with this understanding can the first blocking part contact or approach the moving contact along the closing direction of the moving contact and limit the disconnection distance of the moving contact when it is closed.

[0109] In the claims and description of this utility model, unless otherwise specified, the term "second blocking part" shall be interpreted as: a structure provided on the pusher for ensuring a reliable disconnection gap between the moving contact and the stationary contact by physical blocking when the moving contact is disconnected, or locking the moving contact in an intermediate isolation position.

[0110] In the claims and description of this utility model, unless otherwise specified, the term "common moving contact" shall be interpreted as: in this utility model, specifically referring to a moving contact shared by at least two switches (forming a first switch group).

[0111] In the claims and description of this utility model, unless otherwise specified, the term "first switch group" shall be interpreted as: a set of at least two switches, wherein these switches share a common moving contact (i.e., a common moving contact), and the stationary contacts of each switch are located on both sides of the direction of action of the common moving contact, so as to realize the function of a changeover switch.

[0112] In the claims and description of this utility model, unless otherwise specified, the term "flexible moving contact" shall be interpreted as: a moving contact that achieves the swinging of the moving part by bending and deforming its own flexible connecting part.

[0113] In the claims and description of this utility model, unless otherwise specified, the terms "fixed part," "moving part," and "flexible connecting part" shall be interpreted as referring to the three parts constituting the flexible moving contact. The "fixed part" is the part that remains fixed relative to the stationary contact; the "moving part" is the part that is adapted to swing relative to the fixed part to close or open with the stationary contact; and the "flexible connecting part" is the flexible part that connects the fixed part and the moving part and provides bending function.

[0114] In the claims and description of this utility model, unless otherwise specified, the term "housing" shall be interpreted as: the outer casing of a relay used to house and protect internal components such as contact parts, actuating parts, and driving parts.

[0115] In the claims and description of this utility model, unless otherwise specified, the term "driving part" shall be interpreted as: a component that receives external signals and generates power to drive the movement of the driving part, which in this utility model includes a motor and a transmission mechanism.

[0116] In the claims and description of this utility model, unless otherwise specified, the term "rotating component" shall be interpreted as: a core rotating component in a transmission mechanism used to convert the power of the driving part into a specific motion (such as oscillation or linear motion), such as a crankshaft or cam.

[0117] In the claims and description of this utility model, unless otherwise specified, the term "first axis" shall be interpreted as: the central axis around which the rotating component rotates under the drive of the motor.

[0118] In the claims and description of this utility model, unless otherwise specified, the terms "first mating part and second mating part" shall be interpreted as: a pair of mutually mating structures respectively disposed on the rotating member and the pushing member, used to transmit the rotational motion of the rotating member into the oscillating or linear motion of the pushing member. For example, one of them may be a sliding pin and the other a sliding groove.

[0119] Example 1

[0120] Example 1 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 branch thereof. The push portion 200 is used to actuate the contact portion 100 to close or open. The drive portion 300 is used to receive external signals or excitations to drive the push portion 200 to move. The housing houses the contact portion 100, the push portion 200, and the drive portion 300.

[0121] The drive section 300 is the power source for the relay, responsible for receiving external control signals and generating mechanical motion. The push section 200 acts as the transmission hub, precisely transmitting the motion generated by the drive section 300 to the contact section 100. The contact section 100 is the final component for controlling the on / off state of the circuit, and the state of its internal switch is directly controlled by the action of the push section 200.

[0122] The push portion 200 involved in Embodiment 1 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 stationary contact 141. Before introducing the push portion 200, the contact portion 100 will be introduced first.

[0123] like Figure 1As shown, the contact portion 100 includes at least two switches, and the switches have at least two switch groups. Each switch group independently has one switch or at least two switches. Each switch includes a moving contact 131 and a stationary 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 be referred to as... Figure 3 .

[0124] Among them, at least two switches form a first switch group 111. For example... Figure 1 and Figure 2 As 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, each switch shares a moving contact 131 to form a common moving contact 137. The stationary contacts 141 of each switch are located on both sides of the common moving contact 137 along the direction of movement of the common moving contact 137. In this embodiment, the common moving contact 137 swings in a plane perpendicular to the Y-axis direction, and its effective direction of movement is the Z-axis direction. Therefore, the main direction of movement of the common moving contact 137 can be considered as the Z-axis direction. The stationary 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 stationary 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 first switch group 111, two stationary contacts 141 are spaced apart along the Z-axis and each has a stationary contact 142. The stationary contacts 142 of the two stationary contacts 141 are symmetrically arranged at a certain distance along the Z-axis. The side of the stationary contacts 142 of the two stationary contacts 141 facing each other is used to cooperate with the moving contact 132 on the common moving contact 137. Moving contacts 132 are respectively provided on both sides of the common moving contact 137 along the Z-axis. The two sets of moving contacts 132 of the common moving contact 137 correspond to the stationary contacts 142 of the two stationary contacts 141. The common moving contact 137, driven by the pushing part 200, can cause one set of its moving contacts 132 to close or open with the corresponding stationary contact 142, or to open with both sets of stationary contacts 142, that is, to make both sets of moving contacts 131 of the common moving contact 137 spaced a certain distance from the corresponding stationary contacts 142.

[0126] In Embodiment 1, the common moving contact 137 adopts a flexible moving contact 131, such as... Figure 1 and Figure 2As shown, the flexible moving contact 131 includes a fixing portion 134, an actuating portion 135, and a flexible connecting portion 136. The fixing portion 134 is fixed relative to each stationary contact 141 and is used to lead out connecting terminals. In this embodiment, the fixing 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 adapted to swing relative to the fixing portion 134 along the movement direction of the moving contact 131 to close or open with the stationary contact 141. The flexible connecting portion 136 connects the fixing portion 134 and the actuating portion 135 and is adapted to bend. In this embodiment, the flexible moving contact 131 is made of a laminated metal sheet. Specifically, the two ends of the laminated metal sheet are welded to the fixing portion 134 and the actuating portion 135 respectively, or the two ends of the laminated metal sheet are bonded, pressed, or fused to form the fixing portion 134 and the actuating portion 135, and the middle portion of the laminated metal sheet forms the flexible connecting portion 136. In this embodiment, the common moving contact 137, which serves as the flexible moving contact 131, has two ends of its flexible connecting portion 136 located at different positions along the movement direction of the common moving contact 137, particularly the main movement direction Z-axis. One end of the flexible connecting portion 136 connected to the moving 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 other end of the flexible connecting portion 136 connected to the fixed portion 134 is located along the Z-axis below the end of the flexible connecting portion 136 connected to the moving portion 135. The moving portion 135 extends along the X-axis in the open state; that is, in the open state, the extension direction of the moving portion 135 is the length direction of the moving contact 131. The moving portion 135 can be connected to the pushing portion 200, allowing the moving contact 131 to be driven by the pushing portion 200, causing the moving portion 135 to swing relative to the fixed portion 134. The moving contact point 132 of the moving contact 131 is located on the moving portion 135.

[0127] Reference Figure 1 and Figure 2The actuating portion 135 of the movable contact 131 has a certain width, with the width direction of the actuating portion 135 being the Y-axis direction. A pushed portion 133 is formed at the end of the actuating portion 135 opposite to the flexible connecting portion 136 along the X-axis direction. 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. On the actuating portion 135, the width of the pushed portion 133 is smaller than the width of the portion used to set the movable contact 132, and the pushed portion 133 is approximately located at the middle position in the width direction of the actuating portion 135. Of course, it is worth noting that in some possible embodiments, the part of the movable contact 131 that is connected to the pushing part 200 can also be directly formed by the part of the actuating part 135 that is correspondingly installed with the movable contact 132. In this case, the actuating part 135 does not need to extend other parts to form the pushed part. In order to ensure the current carrying capacity of the movable contact 131, the width of the actuating part 135 can be consistent with the width of other parts of the movable contact 131 used for current carrying and ensure a uniform width at each position, without needing to reduce it at local positions.

[0128] Reference Figure 3 and Figure 4 The contact portion 100 also has a second switch group 112 formed by a switch, which is a third switch 123. The third switch 123 uses the same flexible moving contact 131 as the two switches in the first switch group 111, except that the moving contact 131 is not used as a common moving contact 137. The stationary contact 141 of the third switch 123 is located below the moving contact 131 along the Z-axis, and the stationary contact 142 and the moving contact 132 are positioned opposite each other.

[0129] In Embodiment 1, the first switch group 111 and the second switch group 112 share a single stationary 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 single stationary contact 141, which is a common stationary contact 143. (Refer to...) Figure 5The common stationary contact 143 is provided with stationary contact points 142 corresponding to the first switch 121 and the third switch 123 respectively, wherein the stationary contact point 142 of the first switch 121 is downward along the Z-axis direction, and the stationary contact point 142 of the third switch 123 is upward along the Z-axis direction. Simultaneously, as an electrical implementation, the swing direction of the common moving contact 137 in the first switch group 111 and the moving contact 131 in the second switch group 112 is consistent with that of the actuating part 135 of the common moving contact 137. That is, when the actuating part 135 of the common moving contact 137 is raised along the Z-axis, the actuating part 135 of the moving contact 131 of the third switch 123 is also raised along the Z-axis. At this time, the first switch 121 is closed and the third switch 123 is open. Conversely, when the actuating part 135 of the common moving contact 137 is lowered along the Z-axis, the actuating part 135 of the moving contact 131 of the third switch 123 is also lowered along the Z-axis. At this time, the first switch 121 is open, the second switch 122 is engaged, and the third switch 123 is engaged. There is also a state where both the first switch 121 and the second switch 122 are open, and the third switch 123 is also open. In Embodiment 1, the state where the first switch 121 is closed is set as the first state, the state where only the second switch 122 and the third switch 123 are closed is set as the second state, and the state where the first switch 121, the second switch 122, and the third switch 123 are all open is set as the third state. For example... 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 stationary contact 142 of the stationary 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 each movable contact 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 in their length directions. (Refer to...) Figures 1 to 4 The first switch group 111 and the second switch group 112 each include two moving contacts 131. Each moving contact 131 has a fixed portion 134, a flexible connecting portion 136, and an actuating portion 135. The length direction of the moving contact 131 can be considered as the extension direction of the fixed portion 134 and the actuating portion 135, which is the X-axis direction in Embodiment 1. The actuating portion 135 of the moving contact 131 is the swing end of the moving contact 131. In Embodiment 1, the fixed portion 134 of the moving contact 131 in 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. In the second switch group 112, the fixed portion 134 of the moving contact 131 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. Thus, in Embodiment 1, the swing ends of two adjacent moving contacts 131 are located at different ends in their length directions. Of course, in other embodiments, the swing ends of two adjacent moving contacts 131 can also be located at the same end in their length directions.

[0131] The actuating part 200 includes at least two rotating members 210, each of which is driven by a drive output terminal of the driving part 300 to respectively drive the moving contact 131 and the stationary contact 141 in each switch group (such as the first switch group 111 and the second switch group 122) to close or open. The structure of the actuating part 200 is described in detail below.

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

[0133] Reference Figure 1 The mounting base 240 includes a base body 241 and a rotating shaft 242, as shown in the reference. Figure 7 The mounting base 240 also includes a connector 2410. (See reference...) Figure 1 The base 241 includes a first fitting 247 and a second fitting 248. The mounting base 240 is fixed or at least partially formed in the housing. In the first embodiment, the first fitting 247 in the base 241 is fixed in the housing.

[0134] In this embodiment, the first assembly 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 stationary contact 141 of the contact portion 100 can be integrally molded with the first assembly 247 by insert injection molding, and the connector 2410 can also be integrally molded with the first assembly 247 by insert injection molding. The connector 2410 is used to fix the moving contact 131, and the connector 2410 is connected to the fixing part 134 of the moving contact 131. In this embodiment, the first assembly 24 serves as a mounting base for the contact portion. As a feasible method, the connector 2410 and the moving contact 131 can be fixed by riveting. Furthermore, the relay is connected to an external circuit via a connection terminal (not shown in the figure). In Embodiment 1, the connector 2410 can be a conductive metal, and the connection terminal electrically connected to the moving contact 131 can be formed or disposed on the connector 152. The direction in which the connection terminal leads out of the relay can be arbitrarily set as needed. At the same time, the connection terminal electrically connected to the stationary contact 141 can be directly formed or disposed on the stationary contact 141, and can be led out of the housing in any direction as needed.

[0135] The second mounting component 248 in the base 241 can also be made of plastic or metal. It is a long strip-shaped component with a through hole running through it along its thickness direction. Fasteners can pass through this through hole to secure the second mounting component 248 to the first mounting component 247. (Refer to...) Figure 1At the location where the first assembly 247 is used to install the second assembly 248, a fitting groove 249 adapted to at least a portion of the shape and size of the second assembly 248 is provided. When the second assembly 248 is fixed to the first assembly 247, the second assembly 248 can be fitted into the first assembly 247 along the Y-axis direction, and then fixed by fasteners. In another possible example, one of the first assembly 247 and the second assembly 248 is provided with a positioning protrusion 2411 extending along a first axial direction, and the other is provided with a positioning hole 2412 that can be fitted and inserted into the positioning protrusion 2411, such as... Figure 1 As shown, the bottom of the interlocking groove 249 is provided with a positioning protrusion 2411, and the second assembly 248 is provided with a positioning hole 2412. The aforementioned interlocking groove 249, positioning protrusion 2411, and positioning hole 2412 all enable at least a portion of the first assembly 247 and the second assembly 248 to form an interlocking relationship along the first axial direction. The interlocking groove 249, positioning protrusion 2411, and positioning hole 2412 not only reliably position and prevent rotation of the second assembly 248, allowing it to be secured with only one fastener, simplifying the installation structure; furthermore, the interlocking groove 249 also prevents the second assembly 248 from protruding beyond the surface of the first assembly 247, thus preventing an increase in the overall structural dimensions.

[0136] Furthermore, both the first mounting component 247 and the second mounting component 248 are provided with a shaft hole along the Y-axis direction. This shaft hole allows both ends of the rotating shaft 242 to pass through and form a pivotal fit, thereby enabling the rotating shaft 242 to be assembled to the base 241. In Embodiment 1, the rotating shaft 242 is independently set 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 positioned on either side of at least one movable contact 131 along a first axial direction and are rotatably connected to the mounting base 240 via a pivot 242 to swing about a second axis, the extension direction of which is the first axial direction. In Embodiment 1, two metal swing arms 230 are provided at the common movable contact 137 of the first switch group 111. These two metal swing arms 230 can cooperate with the push unit 220 to define the movement trajectory of the push unit 220, thereby defining the swing trajectory of the moving part 135 of the common movable contact 137 through the push unit 220. The first axial direction is the Y-axis direction in the attached figure, and the position of the pivot 242 and its central axis define the second axial direction.

[0138] In Embodiment 1, the rotating shaft 242 is preferably made of metal, and the metal swing arm 230 is pivotally connected to the rotating shaft 242. That is, there is a pivotal connection between the rotating shaft 242 and the metal swing arm 230, and both 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 component with a predetermined thickness, the thickness direction of which is parallel to the first axial direction. The width direction of the metal swing arm 230 is parallel to the Z-axis direction, and its length direction is parallel to the X-axis direction. The width of the metal swing arm 230 is much greater than its thickness, and its length is much greater than its width. Two metal swing arms 230 are arranged along the Y-axis direction, forming a space between them for the common moving contact 137 to be placed or moved.

[0140] Reference Figure 8 and Figure 9 The metal swing arm 230 includes a first part 234 and a second part 235. The first part 234 is axially aligned with at least a portion of the energized portion of the movable contact 131, while the second part 235 is axially opposed to the energized portion of the movable contact 131. The distance between the first parts 234 of the two metal swing arms 230 in the first axial direction is greater than the distance between the corresponding second parts 235 of the two metal swing arms 230 in the first axial direction. Specifically, the metal swing arm 230 is provided with a shaft connecting part 231, an extension part 232, and a push connecting part 233 in sequence along its length. The shaft connecting part 231 is connected to the rotating shaft 242, and the push connecting part 233 is connected to the push unit 220. The extension part 232 forms the first part 234, and at least the shaft connecting part 231 forms the second part 235. In Embodiment 1, the metal swing arm 230 starts from its shaft connection 231, extends forward to the first turning position, then turns outward and continues to extend forward to form an extension 232. The extension 232 extends forward a considerable distance, reaches the second turning position, turns inward and continues to extend forward to form a push connection 233. Figure 9 As can be seen, the extension 232 serves as the first part 234 of the metal swing arm 230, and the shaft connection 231 and the push connection 233 both serve as the second part 235 of the metal swing arm 230. The distance between the extensions 232 of the two metal swing arms 230 is greater than the distance between the shaft connection 231 and the distance between the push connection 233.

[0141] Mounting base 240 is provided with limiting part 243, which includes two limiting surfaces arranged facing each other and / or back to each other along the first axis. The two limiting surfaces are adapted to form a limiting engagement with metal swing arm 230 and / or push unit 220 along the first axis to restrict the movement of the metal swing arm 230 and push unit 220 as a whole in the first axis.

[0142] Among them, reference Figure 9 The limiting part 243 is provided corresponding to the assembly position of the two metal swing arms 230, and has two first limiting surfaces 244 arranged facing 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 Embodiment 1, one end of the rotating shaft 242 is assembled to the first assembly 247, and the other end is assembled to the second assembly 248, and the first assembly 247 and the second assembly 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 the end of the rotating shaft 242 near the second assembly 248. In Embodiment 1, referring to Figure 1 The first assembly 247 has a shaft hole extending along the Y-axis, and the second assembly 248 has a shaft hole penetrating along the Y-axis. One end of the rotating shaft 242 in the Y-axis direction is inserted into the shaft hole on the first assembly 247, and the other end in the Y-axis direction is inserted into the shaft hole on the second assembly 248. (Refer to...) Figure 11 One first limiting surface 244 is disposed on the first assembly 247, and the other first limiting surface 244 is disposed on the second assembly 248. The two first limiting surfaces 244 are disposed opposite each other along the Y-axis and are both perpendicular to the Y-axis. (Refer to...) Figure 9 Along the Y-axis, a metal swing arm 230 located on the outer side relative to the common moving contact 137 is sleeved onto the rotating shaft 242 from the end near the second assembly 248. During assembly, first align the shaft hole of the metal swing arm 230 located on the inner side relative to the common moving contact 137 with the shaft hole on the first assembly 247. Then, pass one end of the rotating shaft 242 through the shaft hole on the metal swing arm 230 and the first assembly 247. Next, fit the shaft hole of the outer metal swing arm 230 into the rotating shaft 242. Then, fit the shaft hole of the second assembly 248 into the rotating shaft 242. Finally, fix the second assembly 248 to the first assembly 247 with fasteners.

[0143] See also Figure 10 and Figure 11The limiting part 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. Furthermore, the two metal swing arms 230 are respectively located between one set of opposing first limiting surfaces 244 and second limiting surfaces 245 for positioning along the first axial direction. In Embodiment 1, the outer diameter of the two ends of the rotating shaft 242 along the Y-axis direction is smaller, and the outer diameter of the middle part is larger, forming a stepped shaft. A stepped structure is formed at both ends of the rotating shaft 242, and the stepped surface perpendicular to the Y-axis direction in this stepped structure forms the aforementioned second limiting surfaces 245. The dimensions of the shaft holes on the metal swing arm 230, the first mounting part 247, and the second mounting part 248 are adapted to the dimensions of the smaller outer diameter portions at both ends of the rotating shaft 242. When the metal swing arm 230 is assembled onto the rotating shaft 242, the sidewall 228 surface of the metal swing arm 230 facing the second limiting surface 245 abuts against the second limiting surface 245 on the rotating shaft 242. Simultaneously, the first limiting surface 244 on the first mounting part 247 or the second mounting part 248 abuts against the sidewall 228 surface on the other side of the metal swing arm 230. Thus, the first limiting surface 244 and the second limiting surface 245 form a limiting part 243, restricting 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 arms 230. (Refer to...) Figure 9 The limiting part 243 only cooperates with the shaft connection part 231 of the metal swing arm 230.

[0144] It is understood that in Embodiment 1, the limiting part 243 is formed by the cooperation of the rotating shaft 242 and the base 241. In other embodiments, the limiting part 243 may be entirely provided on the rotating shaft 242 or entirely provided on the base 241.

[0145] Reference Figures 1 to 4 The pushing part 200 also includes two pushing units 220 and two rotating parts 210. The two pushing units 220 are respectively arranged corresponding to the first switch group 111 and the second switch group 112. The pushing unit 220 includes 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 the two metal swing arms 230 and can swing relative to the mounting base 240 around the second axis, and is used to push the moving contact 131 corresponding to the position of the two metal swing arms 230. The pushing unit 220 can be driven by the driving part 300 to move, and the overall movement of the pushing unit 220 can be linear or oscillating. The first elastic member 223 is arranged corresponding to the closing direction of the moving contact 131 and is placed between the pushing member 226 and the moving contact 131, so as to provide the moving contact 131 with the contact pressure of closing with the stationary contact 141 when the moving contact 131 closes with the stationary contact 141.

[0146] In Embodiment 1, the structures of the pushing units 220 used in the first switch group 111 and the second switch group 112 are different, but both pushing units 220 swing along a predetermined direction, and the Y-axis direction is perpendicular to the tangent of the movement direction at at least one position of the pushing unit 220 moving along the predetermined direction. The movement trajectory of the pushing unit 220 is an arc. When the swing amplitude of the pushing unit 220 is small, the effective stroke direction for driving the moving contact 131 is the Z-axis direction. When the moving contact 131 is in the third state, that is, when the moving part 135 of the moving contact 131 extends approximately along the X-axis direction, the pushing unit 220 is approximately at the midpoint of its movement trajectory. The tangent of this midpoint is perpendicular to the X-axis direction, that is, the tangent is along the Z-axis direction.

[0147] First, the driving unit 220 and its auxiliary structures in the first switch group 111 will be described. (Refer to...) Figure 1 and Figure 2 In the first switch group 111, a pusher 226 is used to switch the state of the first switch 121 and the second switch 122. The pusher 226 includes a pusher body 222 and a connecting body 221. The pusher body 222 abuts against the first elastic member 223 along the Z-axis. The pusher body 222 and the pushed portion 133 of the common moving contact 137 can be provided with a sleeve post for engaging with the first elastic member 223. The two ends of the spring-shaped first elastic member 223 can be sleeved to the sleeve post to prevent the first elastic member 223 from disengaging from the pusher body 222. The pusher body 222 can drive the moving portion 135 of the common moving contact 137 to swing by applying force through the first elastic member 223. The connecting body 221 can be integrally formed with the pusher body 222 or separately fixed. The connecting body 221 can cooperate with the rotating member 210 to make the pusher unit 220 move as a whole. The pusher body 222 has sidewalls 228 perpendicular to the Y-axis on both sides in the Y-axis direction. The pusher 222 also has a bottom wall and a top wall in the Z-axis direction. The bottom wall, top wall, and two side walls 228 enclose the pusher 222 to form a frame-like structure. The connecting body 221 is located above the top wall of the pusher 222 along the Z-axis direction.

[0148] Reference Figure 1 and Figure 2 The push unit 220 in the first switch group 111 swings relative to the mounting base 240 via the aforementioned metal swing arm 230 and rotating shaft 242. The push connection 233 is connected to the side wall 228 of the push body 222. (Refer to...) Figure 8The pushing body 222 includes a pushing body 2210 and an embedded part 2211. The pushing body 2210 and the connecting body 221 are integrally formed and are both made of plastic. The embedded part 2211 can be made of metal. The pushing body 2210 and the embedded part 2211 are integrated by injection molding. The two metal swing arms 230 are fixedly connected to the embedded part 2211 by riveting, screwing, or welding, thereby achieving a fixed connection between the metal swing arms 230 and the pushing part 226. Alternatively, in other embodiments, the pushing part 226 in the pushing unit 220 can be entirely made of plastic and can be fixedly connected to the two metal swing arms 230 as a whole by injection molding, riveting, screwing, or bonding.

[0149] Reference Figure 1 and Figure 2 The rotating member 210 is provided with a first mating portion, which can be driven by the driving portion 300 to rotate about a first axis parallel to the second axis. The pushing member 226 is provided with a second mating portion that slides with the first mating portion in a direction perpendicular to an axis, so as to swing about a second axis parallel to the first axis driven by the rotating member 210. Furthermore, when the pushing unit 220 pushes at least one moving contact 131 to close with the stationary contact 141, the direction of the force exerted by the second mating portion on the first mating portion passes through or is close to the first axis. One of the first and second mating portions is a sliding groove 227 extending 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, the sliding pin 212 being offset relative to the first axis. In Embodiment 1, a sliding pin 212 is provided on the rotating member 210, and a sliding groove 227 is provided on the connecting body 221. (Refer 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. (Refer to...) Figure 12 The rotating member 210 includes a main shaft 211 connected to the driving part 300 and a sliding pin 212 eccentrically disposed relative to the main shaft 211. The dotted line passing through the main shaft 211 of the rotating member 210 along the Y-axis direction is the first axis. With the rotation of the rotating member 210, the sliding pin 212 slides in the sliding groove 227 and applies force to the pushing member 226. The pushing member 226 is restricted by the metal swing arm 230 and the rotating shaft 242, and swings approximately in the Z-axis direction, thereby causing the actuating part 135 of the common moving contact 137 to swing. For example, the sliding pin 212 rotates with the rotating member 210 to... Figure 7As shown in the diagram, the common moving contact 137 is disconnected from both stationary contacts 141. Then, the rotating member 210 rotates 90° clockwise, causing the sliding pin 212 to swing 90° around the first axis. The sliding pin 212 is at its highest position along the Z-axis. At this point, the actuating part 135 of the common moving contact 137 swings upward, and the moving contact 132 located above the actuating part 135 along the Z-axis contacts the stationary contact 142 located above the common moving contact 137 along the Z-axis, closing the first switch 121. Afterward, the rotating member 210 rotates 90° counterclockwise, and the common moving contact 137 returns to its third state position. Then the rotating part 210 rotates counterclockwise by 90°, and the sliding pin 212 swings around the first axis by 90°. The sliding pin 212 is located at the lowest position along the Z-axis. At this time, the moving part 135 of the common moving contact 137 swings downward, and the moving contact 132 located on the lower side of the moving part 135 along the Z-axis contacts the stationary contact 142 located on the lower side of the common moving contact 137 along the Z-axis, thus closing the second switch 122.

[0150] Furthermore, when the sliding pin 212 is at its highest and lowest positions in the Z-axis direction, that is, when the pushing unit 220 pushes the common moving contact 137 to close with any of the stationary contacts 141, the direction of the force exerted by the sliding groove 227 on the sliding pin 212 is vertical and actually passes through the first axis. Considering the error during operation, the force exerted by the sliding groove 227 on the sliding pin 212 can also be considered to be close to the first axis. The force exerted by the sliding groove 227 on the sliding pin 212 here is a positive or negative force formed by the pushing unit 220 as a whole on the moving contact 131 and then on the rotating member 210. The negative force occurs when an electric repulsive force 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 sharing a common moving contact 137. Therefore, it includes two first elastic elements 223, which are located above and below the pushed portion 133 of the common moving contact 137 along the Z-axis, respectively, and abut against the pushed portion 133. The first elastic elements 223 are springs. Connecting posts for engaging with the first elastic elements 223 can be provided on the pushed portion 133 of the common moving contact 137 and the pushing body 222 to ensure the stability of the first elastic elements 223. The abutment positions of the two first elastic elements 223 against the pushing body 222 are the bottom wall and the top wall, respectively, allowing the pushing member 226 to apply force to the common moving contact 137 along the Z-axis using the first elastic elements 223. Furthermore, since two first elastic elements 223 are provided in the first switch group 111, the closing of the first switch 121 and the second switch 122 can achieve the overtravel closing effect through the first elastic elements 223.

[0152] Next, the actuation unit 220 and its associated structures in the second switch group 112 will be described. (Refer to...) Figure 3 and Figure 4 The actuating unit 220 in the second switch group 112 achieves the state switching of the third switch 123 through a actuating member 226. The actuating member 226 includes a actuating body 222 and a connecting body 221. Unlike the actuating unit 220 in the first switch group 111, since the moving contact 131 in the third switch 123 has only one closing direction, the actuating unit 220 only has one first elastic member 223. Furthermore, the actuating body 222 does not have a bottom wall. The upper end of the first elastic member 223 is connected to the top wall of the actuating body 222 in a pushing manner, and the lower end is connected to the actuating part 135 of the moving contact 131 in a pushing manner. Simultaneously, the actuating body 222 is provided with an overlapping portion 229, which is a flange structure where the bottom edges of the two side walls 228 of the actuating body 222 extend towards each other along the Y-axis. The actuating part 135 of the moving contact 131 will overlap the overlapping part 229 under the force of the first elastic member 223. However, after the pushing unit 220 pushes the actuating part 135 of the moving contact 131 to swing downward along the Z-axis until the third switch 123 is closed, the actuating part 135 of the moving contact 131 will leave the overlapping part 229 and achieve an overtravel closing effect under the action of the first elastic member 223. The cooperation structure and relative motion 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 part 229 can also be set as a bottom wall connected to the bottom edge of the two side walls 228 along the Z-axis. The bottom wall forms a through hole along the Z-axis for avoidance corresponding to the moving contact 132, so that the moving contact 132 can contact the corresponding stationary contact 142 through the through hole.

[0153] Furthermore, in Embodiment 1, the actions of the two push units 220 corresponding to the first switch group 111 and the second switch group 112 are linked together so that the moving contacts 131 in the first switch group 111 and the second switch group 112 have the same motion state. Specifically, both push units 220 are driven by the torque output from the drive part 300 transmitted 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 push unit 220 corresponding to the first switch group 111 rotates to the highest position along the Z-axis, the common moving contact 137 swings upward to close the first switch 121. At the same time, the moving contact 131 in the second switch group 112 also swings upward under the action of the other rotating member 210 on the push unit 220, causing the third switch 123 to open. Alternatively, when the rotating member 210 linked to the push unit 220 corresponding to the first switch group 111 rotates to the lowest position along the Z-axis, the common moving contact 137 swings downward to close the second switch 122. At the same time, the moving contact 131 in the second switch group 112 also swings downward under the action of the other rotating member 210 on the push unit 220, causing the third switch 123 to close.

[0154] In addition, refer to Figure 3 and Figure 4 The push unit 220 in the second switch group 112 is connected to the mounting base 240 by a swing block 250 and a rotating shaft 242. Since the moving contact 131 in the second switch group 112 is not used as the common moving contact 137, the swing block 250 can be a solid flat plate extending a certain length along the X-axis, with its width approximately the same as the width of the moving contact 131. One end of the block can be connected to the push member 226 of the second switch group 112, or the two can be integrally formed. The other end is pivotally connected to a rotating shaft 242, which is then pivotally connected to the first mounting part 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 is a flexible moving contact 131, with its actuating part 135 located between the two metal swing arms 230 of the pushing part 200. At least a portion of the connection between the actuating part 135 of the flexible moving contact 131 and the flexible connecting part 136 is positioned close to the pivot axis 242 in the swing direction of the metal swing arm 230. Specifically, the swing of the actuating part 135 of the flexible moving contact 131 relative to its fixed part 134 is centered on the curved area of ​​the flexible connecting part 136. By positioning this pivot axis, i.e., the connection between the actuating part 135 and the flexible connecting part 136, close to the pivot axis 242 of the metal swing arm 230 in the horizontal direction, the trajectory of this pivot axis is geometrically more closely matched to the trajectory of the point of action on the pushing unit 220, since both are swinging around the same axis. This configuration ensures that the actuating part 135 of the moving contact 131 maintains the same swing amplitude as the pushing unit 220, thereby ensuring that the first elastic element 223 in the pushing unit 220 is subjected to uniform force, preventing it from disengaging from the preset position due to unbalanced force, and thus improving the reliability of the relay operation.

[0156] Furthermore, at least a portion of the connection between the actuating part 135 and the flexible connecting part 136 of the flexible movable contact 131 is located between the two metal swing arms 230. In Embodiment 1, the extensions 232 of the two metal swing arms 230 are spaced apart by a certain distance in an axial direction perpendicular to the swing direction, forming a receiving space. The actuating part 135 of the flexible movable contact 131 and its connection area with the flexible connecting part 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 moving contact 131 and extends a predetermined length along the Y-axis direction. This blocking portion 224 contacts or approaches the moving contact 131 along the closing direction of the moving contact 131 when it closes with the stationary contact 141, thus limiting the distance at which the moving contact 131 separates from the stationary contact 141. (Refer to...) Figure 4 and Figure 7 For the two different pushers 222, the number and structure of the first blocking parts 224 are different. The pusher 222 of the first switch group 111 has two first blocking parts 224 located on both sides of the common moving contact 137 along the Z-axis direction. The pusher 222 of the second switch group 112 has one first blocking part 224 located above its moving contact 131 in the Z-axis direction. The first blocking part 224 can be integrally formed on the pusher 222.

[0158] The first blocking part 224 extends a predetermined length along the Y-axis, which can be in two ways. The first way is referred to... Figure 4 The inner side wall 228 of the pusher 222 has first blocking portions 224 on both sides in the Y-axis direction. These first blocking portions 224, when in the closed state, cooperate with the actuating part 135 of the movable contact 131 to limit the swing range of the movable contact 131. These first blocking portions 224 have two independent parts, both formed on the pusher 222 and each having a certain thickness in the Y-axis direction. In other words, the first blocking portions 224 extend a predetermined length in the first direction. It should be understood that... Figure 4 In the provided example, the pushing body 222 includes two parts (defined as the first pushing part and the second pushing part, respectively). The first pushing part is fixedly connected to the connecting body 221. For example, both the first pushing part and the connecting body 221 are made of plastic and molded as one piece, and are used for the first elastic member 223 to abut against. The second pushing part has two connecting walls and a bottom wall. The two connecting walls are spaced apart along the Y-axis and are fixedly connected to both sides of the first pushing part along the Y-axis to form two side walls 228. The bottom wall is connected to the bottom edge of the two connecting walls along the Z-axis to form an overlap 229. The second case can be referred to... Figure 7 and Figure 8 The portion of the pusher 222 between its two sidewalls 228 along the Y-axis forms a wall-like structure extending a considerable distance along the Y-axis. This wall-like structure forms a first blocking portion 224 extending a predetermined length along the Y-axis. Furthermore, in the second case, the two edges of the wall-like first blocking portion 224 in the Y-axis direction can be correspondingly connected to the two sidewalls 228 of the pusher 222, that is, the first blocking portion 224 blocks part of the opening in the X-axis direction of the pusher 222 that was originally formed by the sidewalls 228, the top wall, and the bottom wall.

[0159] Based on the above, it can be understood that, referring to Figure 7 and Figure 8 In this embodiment, the pusher 226 has sidewalls 228 on both sides of the movable contact 131 in the first direction, and a first blocking portion 224 is disposed between the two sidewalls 228 along the first direction. The first blocking portion 224 has a wall-like structure, and its two edges in the first direction are respectively connected to the two sidewalls 228. Alternatively, as in the second switch group 112, the first blocking portion 224 may also be arranged perpendicular to or at an angle to the first direction.

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

[0161] In the first embodiment, the first blocking part 224 provided on the pusher 226 in the first switch group 111 extends in the shape of a wall and is located between the moving contact 132 and the pushed part 133 of the common moving contact 137 along the X-axis direction. The pusher 226 is provided with the first blocking part 224 on both sides of the stationary contact 141 in both closing directions of the common moving contact 137.

[0162] In a preferred embodiment, when the moving contact 131 is in one of the disconnected positions separated from the stationary contact 141, at least a portion of the extended surface of the first blocking portion 224 (e.g., one side of the first blocking portion 224 along the X-axis) forms an angle with a reference plane defined by the Y-axis and Z-axis directions. That is, the extended surface of the wall-like first blocking portion 224 can be set to be tilted at a certain angle relative to the reference plane. For example, if the first blocking portion 224 is located above the moving contact 131 along the Z-axis, the projection of the lower edge of the first blocking portion 224 in the direction perpendicular to the Z-axis is a straight line at a certain angle to the Y-axis.

[0163] Alternatively, when the moving contact 131 is in one of the disconnected positions separated from the stationary contact 141, at least a portion of the extension surface of the first blocking portion 224 is perpendicular to the X-axis direction. That is... Figure 7 The structure shown, taking the first blocking part 224 located above the moving contact 131 along the Z-axis as an example, has the projection of the lower edge of the first blocking part 224 in the direction perpendicular to the Z-axis as a straight line parallel to the Y-axis.

[0164] Furthermore, the pusher 226 of the first switch assembly 111 is also provided with a second blocking portion 225, which is arranged corresponding to the closing direction of the common moving contact 137. When the pusher 226 drives the common moving contact 137 to disconnect from the stationary contact 141 on either side, the second blocking portion 225 blocks the movement of the common moving contact 137 along the closing direction toward the stationary contact 141 on that side, thereby ensuring that the common moving contact 137 disconnects from the stationary contact 141 on that side. In Embodiment 1, the first blocking portion 224 of the common moving contact 137 corresponding to any closing direction is the same as the second blocking portion 225 corresponding to the other closing direction.

[0165] The structure of the drive section 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 driving part 200 of the relay to rotate around the first axis, so as to change the state of the contact part 100 of the relay. How the driving part 200 cooperates with the rotating part 210 and how the state of the contact part 100 changes has been described in detail above, and will not be repeated here.

[0167] Reference Figure 13 and Figure 14 The drive unit 300 mainly includes a motor 310, a transmission mechanism 320, and a housing 330. The transmission mechanism 320 is driven by the motor 310 and includes at least two drive output ends 321. Each drive output end 321 is connected to a corresponding rotating member 210 to drive the corresponding rotating member 210 to rotate. Specifically, the drive output end 321 can be a countersunk hole with an anti-rotation fit formed on the transmission mechanism 320. The main shaft 211 of the rotating member 210 can be inserted into the countersunk hole and form an anti-rotation fit with the drive output end 321 relative to the first axis. The fixing of the rotating member 210 in the direction of the first axis can be achieved by conventional snap rings, etc. It should be understood that the drive output end 321 here is a functional designation of a part, which has a certain physical structure to achieve the fit with the rotating member 210, but this does not imply any limitation on the structure, size, etc., of the drive output end 321.

[0168] Reference Figure 13 In Embodiment 1, the accommodating member 330 houses the motor 310 and transmission mechanism 320 of the driving part 300, and defines two clearance portions 331 located on its outer side. The positions of the two clearance portions 331 correspond to the output pointing sides of the two driving output ends 321, allowing the two driving output ends 321 to be exposed. At least a portion of the pushing part 200 is located in the two clearance portions 331. Specifically, the accommodating member 330 can be made of plastic material, and it is enclosed by a shell wall on its periphery to form an internal cavity. This internal cavity is used to house the motor 310 and transmission mechanism 320, etc. At the same time, its periphery shell wall can protect and fix the motor 310 and transmission mechanism 320. The motor 310 can be directly fixed to the accommodating member 330, and the rotating shafts 242 of each gear in the transmission mechanism 320 can also be pivotally connected to the accommodating member 330. (Refer to...) Figure 1 , Figure 3 and Figure 13The shape of the receiving member 330 on the projection plane perpendicular to the Z-axis is irregular. It can be considered that the receiving member 330 is roughly rectangular or square with two opposite corners cut out on the projection plane. These two cut-out parts form a relatively empty clearance portion 331 extending along the Z-axis. The clearance portion 331 extends through the entire receiving member 330 along the Z-axis, and the pushing unit 220 in the pushing part 200 can be placed in the clearance portion 331. At the same time, the drive output end 321 of the transmission mechanism 320 extends from the shell wall of the receiving member 330 at the positions of these two clearance portions 331, so that it can cooperate with the pushing unit 220 located in the clearance portion 331 through the rotating member 210. The movement of the drive output end 321 can be transmitted to the pushing unit 220 through the rotating member 210, thereby driving the pushing unit 220 and the moving contact 131 of the contact portion 100 to move, realizing the switching of the contact state of the switch.

[0169] In Embodiment 1, 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. The output direction of the drive output end 321 is the orientation of the end of the drive output end 321 used to connect with the rotating member 210. For example, refer to... Figure 13 The drive output terminal 321 located to the left of the X-axis is positioned below the accommodating member 330 in the Y-axis direction, and its output direction is downward in the Y-axis direction. The drive output terminal 321 located to the right of the X-axis is positioned above the accommodating member 330 in the Y-axis direction, and its output direction is upward in the Y-axis direction. In the second direction perpendicular to the first direction, i.e., the X-axis direction, the two drive output terminals 321 are staggered, meaning their axes are parallel but separated by a certain distance along the X-axis direction. This distance is determined by the dimensions of the accommodating member 330 and the distance between the two clearance portions 331.

[0170] Reference Figure 14 and Figure 15 On a projection plane perpendicular to the first direction, at least a portion of the projection of the motor 310 lies 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 while avoiding the output pointing sides of the two drive output terminals 321. Furthermore, the motor 310 is located on one side of one drive output terminal 321 along the second direction, and on the side of the other drive output terminal 321 opposite to its output pointing direction along the first direction. The projection plane perpendicular to the first direction is... Figure 14On the projection plane along the Y-axis, the projection positions of the two drive output terminals 321 are arranged along the X-axis. At least a portion of the projection of the motor 310 lies 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 coinciding with them, or partially coincide with them. However, regardless of the position of the motor 310 in the X-axis direction, the motor 310 needs to be as close as possible to the two drive output terminals 321 in the Y-axis direction to improve the structural compactness of the drive section 300. At the same time, it should be noted that the motor 310 should be positioned away from the output pointing side of the two drive output terminals 321, for example, referring to... Figure 14 For the drive output terminal 321 on the left side of the X-axis, its output direction is downward in the Y-axis direction. At the same time, the motor 310 is also located downward in the Y-axis direction relative to the drive output terminal 321. At this time, the motor 310 needs to avoid the drive output terminal 321, that is, it needs to be slightly away from the drive output terminal 321 in the X-axis direction. However, for the drive output terminal 321 on the right side of the X-axis, its output direction is upward in the Y-axis direction. Since the motor 310 is located downward in the Y-axis direction relative to the drive output terminal 321, the position of the motor 310 will not interfere with the output direction of the drive output terminal 321. Therefore, the motor 310 can be closer to the other drive output terminal 321 in the X-axis direction.

[0171] Reference Figure 14 The transmission mechanism 320 includes two output gears 322. The two output gears 322 are spaced apart along a second direction, and their rotation axes are parallel to the first direction. Two drive output ends 321 are coaxially connected to the two output gears 322 on opposite sides along the first direction. Specifically, the two gears located at both ends along the X-axis of the transmission mechanism 320 form output gears 322. The shafts of these two output gears 322 are pivotally connected to the receiving member 330 along the Y-axis. At the same time, the shafts of these 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 receiving member 330. The axis of the drive output end 321 is coaxial with the rotation axis of the output gear 322 to which it is located. One drive output end 321 is located on the side of the output gear 322 facing downward along the Y-axis, and the other drive output end 321 is located on the side of the output gear 322 facing upward along the Y-axis. In Embodiment 1, 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 can be separately set and then fixed together. The above description of "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 mesh directly or indirectly with the first gear set 325. The first gear set 325 is driven by a motor 310, and the two sets of second gear sets 326 respectively transmit torque to two drive output ends 321. (Refer to...) Figure 14 The gears of the first gear set 325 and the second gear set 326 are selected by the dashed 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 shaft gear mesh with the output end of the motor 310; two second gear sets 326 are located on both sides of the first gear set 325 along the second direction, and both of them 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 shaft gear mesh or a staggered shaft gear mesh with the first gear 327 used as the output power gear 3210 in the first gear set 325; the two drive output ends 321 are respectively connected to the second gears 328 used as the output power gears 3210 in the two second gear sets 326. Specifically, in Embodiment 1, the first gear set 325 includes two first gears 327, and each of the two second gear sets 326 includes 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. The other first gear 327 meshes with this gear and simultaneously meshes with the two second gears 328 in an alternating-axis gear configuration; these 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. The other second gear 328 meshes with this gear and simultaneously connects to the drive output end 321. Through the cooperation of the first gear set 325 and the second gear set 326, the torque output direction of the motor 310 is changed, resulting in a smaller footprint for the motor 310 in the Y-axis direction.

[0174] In addition, refer to Figure 14The transmission mechanism 320 includes a first part 323 and a second part 324. The first part 323 includes a plurality of gears arranged along a second direction. Two drive output ends 321 are disposed on predetermined gears of the first part 323 and extend outward along the axial direction of the gears. The first part 323 is located between the two drive output ends 321 in a first direction. The second part 324 is located on one side of the first part 323 in the first direction. The second part 324 includes a plurality of gears for transmitting the torque of the motor 310 to the first part 323. In Embodiment 1, the first part 323 includes all the second gears 328 of the two second gear sets 326, and the first gear 327 of the first gear set 325 that meshes with the second gears 328. The second gears 328 of the first gear set 325 that mesh with the output shaft of the motor 310 belong to the second part 324.

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

[0176] In addition, the relay also includes a housing that houses the contact portion 100, the actuating portion 200, and the driving portion 300. The relay housing can be integrally fixed to the mounting base 240 and the housing 330. The fixing method can be fastener connection, welding, snap-fit, etc.

[0177] Example 2

[0178] The difference between Embodiment 2 and Embodiment 1 is that the configurations 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 mesh or a staggered axis gear mesh with the output end of the motor 310; two second gear sets 326 are located on both sides of the first gear set 325 along the second direction, and both of them 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 mesh with the first gear 327 used as the output power gear 3210 in the first gear set 325, and the two drive output ends 321 are respectively connected to the second gear 328 used as the output power gear 3210 in the two second gear sets 326.

[0180] Specifically, in Embodiment 2, the first gear set 325 includes three first gears 327, and each of the two second gear sets 326 includes 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 in an alternating gear configuration and receives torque; this can specifically be achieved using a worm gear structure. Another first gear 327 in the first gear set 325 meshes on one side with the first gear 327 that directly meshes with the motor 310, and on the other side with the last first gear 327. The two second gear sets 326 are distributed along a second direction on both sides of the first gear set 325, and each of the two second gear sets 326 has one second gear 328 meshing with the last first gear 327 in the first gear set 325, while the other second gear 328 is connected to the drive output end 321. Through the cooperation of the first gear set 325 and the second gear set 326, the torque output direction of the motor 310 is changed, resulting in a smaller footprint for the motor 310 in the Y-axis direction.

[0181] Example 3

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

[0183] Specifically, the first and second reduction gear components in the transmission mechanism 320 are arranged relatively independently. They may include the same or different numbers of gears. Each of the first and second reduction gear components has one gear that directly meshes with the motor 310 to receive torque, and each also has one gear connected to the drive output end 321 to output torque to the rotating component 210. The layout of the first and second reduction gear components can refer to the layout of Embodiment 1 and Embodiment 2, and will not be elaborated here.

[0184] In the above embodiments, since the driving part 300 adopts two independent driving output terminals 321, and uses different driving output terminals 321 to output power to different pushing parts 200 respectively, compared with the method of driving a rotating part 210 and driving all the moving contacts 131 of the switches simultaneously by the same driving output terminal 321, the length of the rotating part 210 can be reduced, avoiding the need to use a single and slender rotating part 210 or a driving component connected to it. This significantly reduces the risk of deformation or vibration caused by excessively long component size or uneven force, improves the reliability of the drive and the stability of the mechanical structure, ensures that the transmission of mechanical motion is not prone to failure, and ensures the service life of the relay. At the same time, since the size of the rotating part 210 can be designed to be shorter, the rotating part 210 can be directly supported by the driving output terminal 321 without the need to set up a separate support structure on the relay housing structure, thereby reducing the volume occupation and making the internal structure of the relay more compact, thus promoting the miniaturization of the overall relay structure.

[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 the first direction, and the two drive output ends 321 are staggered in the second direction; the second direction is perpendicular to the first direction.

[0186] Since the two drive output terminals 321 are staggered in the second direction perpendicular to the first direction, the push parts 200 corresponding to the two drive output terminals 321 can also be staggered in the second direction. This avoids the problem of the two push parts 200 needing to avoid each other and requiring a large installation space due to the two drive output terminals 321 being arranged on the same side in the second direction. Furthermore, since the output directions of the two drive output terminals 321 are opposite in the first direction, the two push parts 200 corresponding to the two drive output terminals 321 are arranged in the first direction. This allows for reasonable use of the space in the first direction to arrange the two push parts 200, and avoids occupying too much space in the second direction. In addition, this arrangement also helps to minimize the space occupied by the two push parts 200 in the first direction by reducing the distance between the two drive output terminals 321 in the first direction, so that the entire relay can be reduced in size in both the first and second directions 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 terminals 321, and is close to the two drive output terminals 321 along the first direction while avoiding the output pointing side of the two drive output terminals 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 ends 321, the installation of the motor 310 will not extend beyond the range of the two drive output ends 321 along the second direction, thus further ensuring space is saved in the second direction. Since the motor 310 is set close to the two drive output ends 321 along the first direction, the space occupied in the first direction can be well controlled. Moreover, 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 push part 200 outside the drive output ends 321, realizing reasonable use of space and compact layout. Furthermore, since the motor 310 is installed away from the output pointing side of the two drive output ends 321, more space is freed up for the push part 200 outside the drive output ends 321, avoiding motion interference.

[0189] In at least one embodiment, the motor 310 is located on one side of one of the drive output terminals 321 along a second direction and on the side opposite to the output direction of the other drive output terminal 321 along a 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 drive output terminal 321 along the second direction and on 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 free space defined by the two drive output terminals 321 and the two drive parts 300 in the first and second directions. This avoids motion interference between the motor 310 and the drive output terminal 321 or the transmission mechanism 320 in the main spatial dimensions, further improving the utilization rate of the drive part 300 and even the entire relay internal space, and helping to achieve a compact design.

[0191] Furthermore, based on the perpendicular relationship between the second direction and the first direction, the relative positional relationship between the two drive output ends 321 and the motor 310, which is based on the staggered layout of the drive output ends 321, 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 spur gear meshing method can be adopted, reducing the need for complex intermediate transmissions or non-standard gears that may be required to adapt to arbitrary angles. This reduces the number of transmission levels, achieves more efficient power transmission, and reduces 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 drive force transmission, and also facilitates the manufacturing, 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 spaced apart along the second direction and their rotation axes are parallel to the first direction; two drive output ends 321 are coaxially connected to the two output gears 322 on opposite sides along the first direction.

[0193] Since the two output gears 322 used to connect the drive output ends 321 are arranged along the second direction, it is advantageous for the transmission mechanism 320 to reasonably arrange the gear set in the space located between the two drive output ends 321 in the first direction and extending along the second direction, and to 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 meshing gears. Both the first reduction assembly and the second reduction assembly are driven by a motor 310 and transmit torque to two drive output ends 321 respectively.

[0195] Based on the staggered layout of the drive output end 321, the transmission mechanism 320 includes a first reduction component and a second reduction component composed of several meshing gears. Both are driven by the motor 310 and transmit torque to the two drive output ends 321 respectively. This design of dual independent reduction components allows for independent parametric design and optimization of each reduction component according to the load characteristics driven by each drive output end 321 (such as 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. This allows the load to be more evenly distributed to the motor 310, avoiding the motor 310 from overloading due to driving a single load or excessively high overall load, or sacrificing the performance of a certain path to adapt 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 mesh directly or indirectly with the first gear set 325. The first gear set 325 is driven directly or indirectly by the motor 310, and the two second gear sets 326 respectively transmit torque to 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 mesh directly or indirectly 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), dual-output (two second gear sets 326 output respectively) gear distribution structure simplifies the transmission path from the motor 310 to the two output ends 321 by using a common first gear set 325 as the power distribution point. Compared with two completely independent and complex transmission chains, its structure is more compact and the transmission chain is shorter, thereby reducing energy loss and accumulated errors in intermediate links, resulting in higher transmission efficiency and the ability to reliably and synchronously distribute the power of the motor 310 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 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 parallel to the rotation axis of the output end of the motor 310, and the two directly or indirectly form a parallel shaft gear mesh; two second gear sets 326 are located on both sides of the first gear set 325 along the second direction, and both of them 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 in the second gear set 326 used as the input power gear 329 and the first gear 327 in the first gear set 325 used as the output power gear 3210 directly or indirectly form an intersecting shaft gear mesh or a staggered shaft gear mesh; the two drive output ends 321 are respectively connected to the second gear 328 in the two second gear sets 326 used as the output power gear 3210.

[0199] By defining the relationship between the rotational axes of the first gear 327 and the second gear 328, as well as their relationship with the rotational axis of the output end of the motor 310, a clear and easy-to-use power transmission path scheme is provided. First, transmission is achieved through the meshing of parallel shaft gears, and then the direction of power transmission is changed by the meshing of intersecting shaft or staggered shaft gears to adapt to the specific spatial positional relationship between the motor 310 and the drive output end 321, which is also beneficial to the miniaturization design of the relay as a whole.

[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 in the first gear set 325, which serves as the input power gear 329, directly or indirectly forms an intersecting shaft gear mesh or a staggered shaft gear mesh with the output end of the motor 310; two second gear sets 326 are located on both sides of the first gear set 325 along the second direction, and both of them 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 in the second gear set 326, which serves as the input power gear 329, directly or indirectly forms a parallel shaft gear mesh with the first gear 327 in the first gear set 325, which serves as the output power gear 3210; the two drive output ends 321 are respectively connected to the second gear 328 in the two second gear sets 326, which serve as the output power gear 3210.

[0201] By defining the relationship between the rotational axes of the first gear 327 and the second gear 328, as well as their relationship with the rotational axis of the output end of the motor 310, an alternative power transmission path is provided. First, the power direction is changed through intersecting or staggered shaft gear meshing, achieving a larger transmission ratio. Then, power is distributed to the two output ends 321 through parallel shaft gear meshing. This scheme 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 a second direction; two drive output ends 321 are disposed on predetermined gears of the first part 323 and extend outward along the axial direction of the gears; the first part 323 is located between the two drive output ends 321 in a 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 for transmitting the torque of the motor 310 to the first part 323.

[0203] Since the transmission mechanism 320 includes a first part 323 and a second part 324, the first part 323 includes several gears arranged along a third direction. The two drive output ends 321 are located on the predetermined gears of the first part 323 and extend outward along the axis of the gears. The first part 323 is located between the two drive output ends 321 in the first direction. This structure cleverly arranges the gear set (first part 323) that is directly formed in the transmission mechanism 320 or drives the output ends 321 in the gap space formed in the first direction due to the misalignment of the drive output ends 321, instead of further expanding the size of the drive part 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 part 324 is responsible for effectively transmitting the torque of the motor 310 to the first part 323. This design of dividing the transmission mechanism 320 into functional modules and optimizing the spatial layout improves the overall compactness of the drive part 300 and is beneficial to the load balance of the two drive output ends 321 in terms of torque transmission.

[0204] In at least one embodiment, the rotation axis of the output terminal 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 both the first direction (the direction in which the outputs of the two drive output ends 321 point) and the second direction (the direction perpendicular to the first direction, which is the reference for the positional relationship between the main body of the motor 310 and the drive output ends 321), this means that the rotation axis of the motor 310 (i.e., the direction in which the output end of the motor 310 points) is perpendicular to the plane formed by the first and second directions. The motor 310 can be arranged in a way that minimizes its projected area on the plane (e.g., the length direction of the motor 310 is perpendicular to the plane). This orientation allows the drive part 300 to achieve a smaller size in a specific dimension (usually the dimension corresponding to the length of the motor 310), which is of positive significance for the compact design of the overall drive unit, especially in terms of height or thickness control, making it easier to integrate the drive part 300 into space-constrained applications.

[0206] In at least one embodiment, the output terminal of the motor 310 remains in a stopped position when the motor 310 stops rotating. Since the output terminal of the motor 310 remains in a stopped position when the motor 310 stops rotating, this self-locking or holding characteristic is typically achieved by the internal structure of the motor 310 (such as the cogging torque of the permanent magnet synchronous motor 310, the positioning torque of the stepper motor 310) or an external braking mechanism. This allows the output terminal to resist the reverse torque generated by external loads (such as the reaction force from the relay contact spring or the load's own weight) after the motor 310 completes its driving task and stops supplying power or control signals, preventing unexpected displacement or reversal. This ensures that the moving contact 132 of the relay can reliably maintain this state after switching to the target position, without requiring the motor 310 to continuously consume energy to maintain the position. This significantly reduces the standby power consumption of the relay, extends the lifespan of the motor 310, ensures the stability of the relay state, effectively prevents malfunctions caused by vibration or slight disturbances, and helps the contact portion 100 resist the electric repulsive force when a fault current occurs.

[0207] In at least one embodiment, it further includes a receiving member 330, which houses the motor 310 and 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 pointing sides of the two driving output ends 321 and expose the two driving output ends 321, and at least a portion of the pushing portion 200 is located in the two clearance portions 331 respectively.

[0208] Since it also includes a housing 330, which houses the motor 310 and transmission mechanism 320 of the drive section 300, it provides a closed protective space for these precision and environmentally sensitive core drive components. This effectively prevents the intrusion of dust, moisture, corrosive gases, or other harmful external factors, thereby improving the durability of the drive section 300 and its operational reliability in various complex and even harsh environments. It also prevents metal debris generated during the operation of the drive section 300 from affecting the contact performance of the moving contact 132 and stationary contact 142 of the contact section 100. Simultaneously, the housing 330 defines the area located within it... The two outer clearance portions 331 are precisely positioned to correspond to the positions of the two drive output ends 321, allowing the drive output ends 321 to extend smoothly out of the receiving member 330. This design provides necessary space for movement and a clear mechanical connection interface for at least a portion of the push portion 200 located in the two clearance portions 331. This design not only achieves effective isolation between the drive portion 300 and the push portion 200, which is beneficial for the modular assembly and subsequent maintenance of the relay, but also ensures that the push member 226 can move smoothly within its predetermined drive stroke without interfering with the housing of the drive portion 300.

[0209] This utility model also provides a relay, which includes a contact portion 100, a push portion 200, and a drive portion 300; the contact portion 100 includes at least two switch groups, each switch group having one switch independently or having at least two switches, the switches including a moving contact 131 and a stationary contact 141; the push portion 200 includes at least two rotating members 210, each rotating member 210 being driven by a drive output terminal 321 of the drive portion 300, so as to respectively drive the moving contact 131 and the stationary contact 141 in each switch group to close or open.

[0210] Because this relay includes the aforementioned drive section 300, which achieves compactness, reliability, and stability of the drive unit through its unique dual-output terminal 321 design and optimized layout of the motor 310 and transmission mechanism 320, these advantages are directly applied to the entire relay. The drive section 300 drives the push section 200 to close or open the moving contact 131 and stationary contact 141 in the contact section 100. Therefore, this relay not only achieves a more compact overall structure but also effectively improves problems such as unstable drive, slow response, or easy damage caused by excessive length or uneven force on the rotating part 210 of the drive section 300 or push section 200, thus enhancing the overall reliability and service life of the relay. Furthermore, because the contact section 100 includes independently controllable switch groups, 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 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 terminal 321 of the driving part 300, it rotates around a first axis parallel to the first direction. The pushing member 226 is adapted to be driven by the rotating member 210 to reciprocate linear motion or swing around a second axis at at least two preset positions. The direction of motion of the pushing member 226 or the direction of driving the moving contact member 131 to move is a third direction, which is perpendicular to both the first direction and the second direction.

[0212] Since the pushing part 200 includes two pushing members 226, which are respectively connected to two rotating members 210 and respectively connected to the moving contact 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 oscillation 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, realizing the 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 part; the pushing member 226 is provided with a second mating part that slides with the first mating part; one of the first mating part and the second mating part is a sliding groove 227 extending perpendicular to the first axis, and the other is a sliding pin 212 extending into the sliding groove 227 along the first axis, the sliding pin 212 being offset relative to the first axis.

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

[0215] In at least one embodiment, the extension direction of the sliding groove 227 is a 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 open; 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 switch in the second switch group 112 are open.

[0216] When the moving contact 131 and the stationary contact 141 in the first switch group 111 and the second switch group 112 are closed, the sliding pin 212 is located on both sides of the first axis along the third direction, which limits the effective displacement space of the sliding pin 212 to the third direction. This direction is roughly the same as the movement direction of the pusher 226, which can further restrict the movement of the movable mechanism to the existing space, thereby making better use of the space formed by the improvement of the drive part 300, which is conducive to 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. Through the cooperation of the sliding pin 212 and the sliding groove 227, the contact part 100 has three different contact states, which can realize more complex switch logic combinations. For example, it can flexibly form specific forms of series circuits, parallel circuits or selective switching circuits, and realize the full disconnection function, providing the necessary hardware foundation for specific applications such as intelligent switching of battery pack series and parallel states.

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

[0218] Since the relay also includes a housing that accommodates the contact portion 100, the pushing portion 200, and the driving portion 300, it provides a unified external encapsulation and structural foundation for all internal functional components of the relay, thus providing overall physical protection and preventing damage to internal components from external impacts, contamination, etc. The descriptions of the above specifications and embodiments are used to explain the scope of protection of this utility model, but do not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the above embodiments, should all be included within the scope of protection of this utility model.

Claims

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

2. The driving part as described in claim 1, characterized in that, The transmission mechanism includes two drive output ends, the output directions of the two drive output ends are opposite along the first direction, and the two drive output ends are staggered in the second direction; the second direction is perpendicular to the first direction.

3. A driving part as described in claim 2, characterized in that, in 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 terminals; and the motor moves close to the two drive output terminals along the first direction while avoiding the output pointing sides of the two drive output terminals.

4. A driving part as described in claim 3, characterized in that, The motor is located on one side of one of the drive output terminals along the second direction, and on the side opposite to the output direction of the other drive output terminal along the first direction.

5. A driving component as described in claim 3, characterized in that, The transmission mechanism includes two output gears; the two output gears are spaced apart along the second direction and their rotation axes are parallel to the first direction; the two drive output ends are coaxially connected to the two output gears on opposite sides along the first direction.

6. A driving part as described in claim 2, characterized in that, The transmission mechanism includes a first reduction assembly and a second reduction assembly, which are composed of several meshing gears. Both the first reduction assembly and the second reduction assembly are driven by the motor and transmit torque to the two drive output terminals respectively.

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

8. A driving portion as described in claim 7, characterized in that, The rotation axis of the output end of the motor is perpendicular to both 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 in the first gear set used as the input power gear directly or indirectly meshes with the output end of the motor as a parallel shaft gear; 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 in the second gear set used as the input power gear directly or indirectly meshes with the first gear in the first gear set used as the output power gear as an intersecting shaft gear or a staggered shaft gear; the two drive output ends are respectively connected to the second gears in the two second gear sets used as output power gears.

9. A driving part as described in claim 7, characterized in that, The rotation axis of the output end of the motor is perpendicular to both 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 in the first gear set used as the input power gear directly or indirectly forms an intersecting shaft gear mesh or a staggered shaft gear mesh with the output end of the motor; 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 in the second gear set used as the input power gear directly or indirectly forms a parallel shaft gear mesh with the first gear in the first gear set used as the output power gear, and the two drive output ends are respectively connected to the second gears in the two second gear sets used as output power gears.

10. A driving portion as described in 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 a second direction; the two drive output ends are disposed on predetermined gears of the first part and extend outward along the axial direction of the gears; the first part is located between the two drive output ends in a 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 for transmitting the torque of the motor to the first part.

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

12. A driving part as described in claim 1, characterized in that, The output terminal of the motor remains in the stopped position when the motor stops rotating.

13. A driving part as described in claim 2, characterized in that, It also includes a receiving member that houses the motor and transmission mechanism of the drive portion and defines two clearance portions located on its outer side; the positions of the two clearance portions correspond to the output pointing sides of the two drive output ends and expose the two drive output ends, and at least a portion of the push portion is located in the two clearance portions respectively.

14. A relay, characterized in that, It includes a contact portion, a pushing portion, and a driving portion as described in claim 1; the contact portion includes at least two switch groups, each of the switch groups independently having one switch or having at least two switches, each switch including a moving contact and a stationary contact; the pushing portion includes at least two rotating members, each of the rotating members being driven by a driving output terminal of the driving portion, so as to respectively drive the moving contact and the stationary contact in each of the switch groups to close or open.

15. A relay, characterized in that, It includes a contact portion, a pushing portion, and a driving portion as described in any one of claims 2-13; the contact portion includes a first switch group and a second switch group, each of the first switch group and the second switch group independently having one switch or having at least two switches, the switches including moving contacts and stationary contacts; the pushing portion includes two rotating members, the two rotating members being driven by the two driving output terminals of the driving portion respectively, so as to drive the moving contacts and stationary contacts in the first switch group and the second switch group to close or open.

16. A relay as described in claim 15, characterized in that, The pushing part further includes two pushing units, which 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; When the rotating member is driven by the drive output end of the drive part, it rotates around a first axis parallel to the first direction; the pushing unit is adapted to be driven by the rotating member to reciprocate linear motion or swing around a second axis parallel to the first axis at at least two preset positions, and the direction of motion of the pushing unit or the direction of driving the moving contact member to move is a third direction, which is perpendicular to both the first and second directions.

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

18. A relay as described in claim 17, characterized in that, The sliding groove extends in a 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 a 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, another switch in the first switch group is closed, and the switch in the second switch group is open; 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 as claimed in any one of claims 15 to 18, characterized in that, The relay also includes a housing that accommodates the contact portion, the actuating portion, and the driving portion.

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