A wiring module and contactor

Abstract

The application provides a wiring module and a contactor, and belongs to the technical field of electrical equipment. The wiring module comprises a wiring seat, a screw and a gasket set. The wiring seat is a frame structure, so that a hollow area is formed in the wiring seat. The wiring seat is provided with a first mounting hole penetrating through the wiring seat. The screw is arranged in the first mounting hole. The screw comprises a first end and a second end. The first end is located in the hollow area and is in a stepped shape. The second end is located outside the wiring seat. The gasket set is arranged on the side of the first end away from the second end. The gasket set is fixedly connected with the first end. The gasket set comprises a flat gasket and a spring gasket. The spring gasket is closer to the first end than the flat gasket. Part of the first end extends into the spring gasket. Another part of the first end is in contact with the surface of the spring gasket. The gasket set is arranged, so that the dependence on the wiring frame in the wiring process is eliminated. The number of parts in the wiring module can be reduced, so as to reduce the use cost of the wiring module.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and in particular to a wiring module and contactor. Background Technology

[0002] A contactor is an electromagnetic automatic switching device, mainly used for frequently connecting or disconnecting AC / DC main circuits and high-capacity control circuits. It features large control capacity, high operating frequency, and reliable operation, and is widely used in industrial automation, power systems, building electrical systems, and other fields.

[0003] The wiring module is a key auxiliary component used in conjunction with the contactor. Its main function is to ensure reliable connection between the contactor and external circuits such as control circuits or main circuits, facilitate maintenance, and provide safety protection. In existing technologies, contactor wiring modules suffer from complex structures, leading to higher operating costs. Utility Model Content

[0004] This application provides a wiring module and a contactor to simplify the structure of the wiring module and thereby reduce the cost of using the wiring module.

[0005] In a first aspect, this application provides a wiring module, which includes a terminal block, screws, and a washer assembly. The terminal block has a frame structure with a closed, surrounding contour, forming a hollow area inside the terminal block. The terminal block has a first mounting hole that penetrates the terminal block. The screw passes through the first mounting hole and includes a first end and a second end positioned opposite each other. The first end is located within the hollow area and is stepped, while the second end is located outside the terminal block. The washer assembly is disposed on the side of the first end away from the second end and is fixedly connected to the first end. The washer assembly includes a flat washer and a spring washer. The spring washer is closer to the first end than the flat washer, with a portion of the first end extending into the spring washer and the other portion contacting the surface of the spring washer.

[0006] The above design provides a stable support frame for screw installation through the closed contour of the frame structure. An integrated washer assembly at the first end of the screw includes a flat washer to increase the contact area with the wire, ensuring a more secure fixation, and a spring washer to provide preload when the screw tends to loosen. This design effectively improves wire fixation, eliminating the need for a wiring frame during wiring. Removing the wiring frame during wiring reduces the number of parts in the wiring module, lowers material consumption and manufacturing complexity, and ultimately reduces the cost of using the wiring module.

[0007] In one possible design, the wiring module also includes a retaining pin. The terminal block has a second mounting hole, which is opposite to the first mounting hole. A positioning hole is provided at the first end, extending along the axis of the screw. A first washer hole is provided on the flat washer, and a second washer hole is provided on the spring washer; the first washer hole, the second washer hole, and the positioning hole are interconnected. The retaining pin passes sequentially through the second mounting hole, the first washer hole, and the second washer before entering the positioning hole and being securely connected to the screw.

[0008] Through the above-described solution, this application achieves stable connection between the fixing pin and the screw by inserting a fixing pin into the positioning hole. This requires only drilling and pin insertion to assemble the fixing pin and screw, eliminating the need for additional thread machining or welding. The first washer hole on the flat washer and the second washer hole on the spring washer form a continuous channel, ensuring that the fixing pin can pass through both washers simultaneously and form a rigid connection with the screw. This connection method eliminates axial movement of the washer assembly under vibration, maintaining the preload of the spring washer. Furthermore, it prevents axial displacement of the washer assembly during preload, ensuring the spring washer continuously provides elastic pressure.

[0009] In one possible design, the first washer hole is a stepped hole, and the retaining pin has a boss at one end outside the positioning hole. The boss is located inside the stepped hole and contacts the hole wall.

[0010] The above solution reduces the loosening caused by vibration at the connection between the washer assembly and the screw, and improves connection reliability through a mechanical interlocking structure. Furthermore, the engagement of the stepped hole and the boss simplifies the assembly process, avoids the risk of wire interference caused by the retaining pin protruding from the flat washer surface, and allows the wiring module to maintain compactness while possessing higher vibration resistance.

[0011] In one possible design, the flat washer has striped protrusions on the side facing away from the spring washer.

[0012] With the above solution, when the flat washer is installed, its striped raised surface directly contacts the contact surface of the wire. This increases the contact area between the flat washer and the wire, making the fixation between the flat washer and the wire more stable and thus improving the reliability of the wiring module.

[0013] In one possible design, the spring washer is disc-shaped. When the spring washer is in its undeformed state, the area of ​​the spring washer facing the first end and near the second washer hole protrudes from the edge region of the spring washer. When the spring washer is in a compressed and deformed state, the area of ​​the spring washer facing the first end and near the second washer hole is recessed into the edge region of the spring washer.

[0014] Through the above solution, this application integrates the pre-tightening function of the wiring module, eliminating the need for a traditional wiring frame structure while ensuring the stability of the pre-tightening force. This design reduces the number of parts in the wiring module, thereby simplifying the assembly process and lowering the operating cost. Simultaneously, the automatic compensation for mechanical loosening through the elastic deformation of the spring washer improves the long-term reliability of the wiring connection.

[0015] In one possible design, the wiring module further includes a stationary contact, which comprises a contact portion and a contact platform positioned opposite each other. The contact portion is located within a hollow area and is positioned opposite the screw, while the contact platform is located outside the terminal block. The stationary contact has two reinforcing ribs on the side facing the screw, symmetrically arranged along the edge of the stationary contact facing the screw.

[0016] With the above design, the contact portion is directly exposed in the hollow area of ​​the terminal block, forming a clamping space with the first end of the screw for fixing the wire. The contact platform extends to the outside of the terminal block to facilitate contact with the moving contact of the contactor. Two reinforcing ribs extend symmetrically along the longitudinal edge of the stationary contact, from the contact portion area to the contact platform area, forming a continuous support structure that runs through the body of the stationary contact. When the contactor generates force during closing or opening, the reinforcing ribs form a bending-resistant section through edge support, which can effectively suppress the plastic deformation of the stationary contact. At the same time, the symmetrical layout of the two reinforcing ribs can avoid stress concentration caused by unilateral force, further reducing the possibility of deformation of the stationary contact.

[0017] In one possible design, a reinforcing rib is positioned between the contact portion and the contact platform. The reinforcing rib is elongated, with one end close to the contact portion and the other end close to the contact platform.

[0018] With the above solution, during the contactor closing or opening process, the extension direction of the reinforcing rib can remain parallel to the stress transmission direction, so that the shear stress generated at the connection between the contact part and the contact platform is evenly distributed to the entire length of the reinforcing rib. This can suppress the plastic deformation of the stationary contact caused by local stress concentration, and thus solve the problem of upward or downward bending deformation of the stationary contact caused by stress concentration during long-term use. This can extend the service life of the wiring module.

[0019] In one possible design, the contact portion has striped protrusions on the side facing the screw.

[0020] With the above solution, the contact surface of the wire can fit into the striped protrusions on the contact part, which increases the contact area between the contact part and the contact surface of the wire. This makes the fixation between the contact part and the wire more stable, thereby improving the reliability of the wiring module.

[0021] Secondly, this application provides a contactor. The contactor includes a housing and the wiring module mentioned in the first aspect. The stationary contacts of the wiring module are fixedly connected to the housing.

[0022] Through the above solution, this application achieves stable installation of the contactor wiring module. The housing serves as a unified mounting base, simplifying the internal structural layout of the contactor and reducing the precision requirements for component machining.

[0023] In one possible design, the stationary contact has a first fixing hole, through which a bolt is passed to fix the stationary contact to the housing.

[0024] With the above solution, the stationary contact is directly fixed to the housing by bolts through the first fixing hole, ensuring that the mating position of the contact part and the screw remains fixed after assembly. By using the housing as a unified load-bearing structure, precise alignment of the contact part and the screw is achieved, while also reducing cumulative errors during the integrated assembly of multiple components. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the wiring module provided in the embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the terminal block provided in an embodiment of this application.

[0027] Figure 3 This is an assembly diagram of the screw and washer assembly provided in an embodiment of this application.

[0028] Figure 4 This is a schematic diagram of the screw provided in an embodiment of this application.

[0029] Figure 5 This is a schematic diagram of the structure of the flat washer provided in an embodiment of this application.

[0030] Figure 6 This is a schematic diagram of the structure of the spring washer provided in an embodiment of this application.

[0031] Figure 7 This is a cross-sectional view of the screw and washer assembly provided in an embodiment of this application.

[0032] Figure 8 This is a schematic diagram of the structure of the spring washer in the undeformed state provided in the embodiment of this application.

[0033] Figure 9 This is a schematic diagram of the structure of the spring washer provided in the embodiment of this application when it is in a state of compression deformation.

[0034] Figure 10 This is a schematic diagram of the structure of the stationary contact provided in an embodiment of this application.

[0035] Explanation of reference numerals in the attached figures: 100. Terminal block; 110. First mounting hole; 120. Second mounting hole; 200, Screw; 210, First end; 211, Locating hole; 220, Second end; 300, flat washer; 310, first washer hole; 400, Spring washer; 410, Second washer hole; 500, retaining pin; 510, boss; 600. Stationary contact; 610. Contact portion; 620. Contact platform; 630. Reinforcing rib; 640. First fixing hole; 700. Wire. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0038] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and drawings of this application are intended to cover without excluding other meanings. The words "a" or "an" do not exclude the presence of multiples.

[0039] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0041] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by fasteners, such as a connection secured by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In existing technologies, wiring modules with pre-tightening functions typically require an additional, bulky wiring frame structure. This type of wiring frame involves multiple stamping and bending processes during manufacturing, resulting in low material utilization. This not only complicates the wiring module's structure but also increases its operating cost. Furthermore, this type of wiring frame structure occupies a significant amount of space, requiring reserved installation space during contactor installation, thus limiting the miniaturization of the equipment.

[0045] To address the aforementioned problems, this application provides a wiring module and a contactor. To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0046] Figure 1 This is a schematic diagram of the overall structure of the wiring module provided in the embodiment of this application. Figure 2This is a schematic diagram of the terminal block provided in an embodiment of this application. Figure 3 This is an assembly diagram of the screw and washer assembly provided in an embodiment of this application. Figures 1 to 3 As shown, this application provides a wiring module, which includes a terminal block 100, screws 200, and a washer assembly. The terminal block 100 has a frame structure with a closed surrounding contour, forming a hollow area inside the terminal block 100. The terminal block 100 has a first mounting hole 110 that penetrates through the terminal block 100. The screw 200 passes through the first mounting hole 110 and includes a first end 210 and a second end 220 positioned opposite each other. The first end 210 is located within the hollow area and is stepped, while the second end 220 is located outside the terminal block 100. The washer assembly is located on the side of the first end 210 away from the second end 220. The washer assembly is fixedly connected to the first end 210. The washer assembly includes a flat washer 300 and a spring washer 400. The spring washer 400 is closer to the first end 210 than the flat washer 300. Part of the first end 210 extends into the spring washer 400, and the other part of the first end 210 contacts the surface of the spring washer 400.

[0047] The closed, encircling frame structure refers to a support frame formed by a continuous, closed geometric shape, which can be achieved by using rectangular metal stamping parts. The hollow area inside the terminal block 100 can provide operating space for the connection of the wires 700.

[0048] The first mounting hole 110 refers to a through hole that penetrates the side wall of the terminal block 100. Specifically, it can be formed by drilling or punching. The first mounting hole 110 can be used to guide the axial movement of the screw 200.

[0049] The screw 200 can be a long cylindrical shape. The step-shaped first end 210 means that the first end 210 can include two parts, one part of which has the same diameter as the second end 220, and the other part of which has a smaller diameter than the second end 220. The part of the first end 210 with a smaller diameter than the second end 220 can be located inside the spring washer 400, and the part of the first end 210 with the same diameter as the second end 220 contacts the surface of the spring washer 400 on the side facing the spring washer 400.

[0050] Flat washer 300 refers to a ring-shaped metal part with a flat contact surface. Flat washer 300 can adopt standard flat washer specifications and is used to evenly distribute the clamping force of screw 200 on wire 700. Spring washer 400 refers to a ring-shaped metal part with elastic deformation capability. When the contactor vibrates or heats up during operation, causing the bolt to have a slight tendency to loosen, spring washer 400 can release elastic potential energy and generate continuous axial pressure through its own rebound, tightening the bolt and preventing it from loosening further.

[0051] Specifically, when the screw 200 is screwed into the first mounting hole 110, the first end 210 of the screw 200 drives the washer assembly to move into the terminal block 100. After the flat washer 300 contacts the wire 700, the spring washer 400 continues to be compressed by the screw 200, resulting in elastic deformation, which converts the axial pressure into radial expansion force. At the same time, the flat washer 300 acts as a rigid support layer, uniformly transmitting the pressure to the contact surface of the wire 700. During the tightening process, the elastic deformation of the spring washer 400 can compensate for the pressure attenuation caused by material creep or vibration.

[0052] In summary, the closed profile of the frame structure provides a stable support framework for the installation of screw 200. An integrated washer assembly is located at the first end 210 of screw 200. The flat washer 300 increases the contact area with the wire 700, making the wire 700 more securely fixed, while the spring washer 400 provides pre-tightening force to the screw 200 when it tends to loosen. This design effectively improves the fixing effect of the wire 700, thereby eliminating the reliance on the wiring frame during wiring. When the wiring frame is not needed during wiring, not only is the number of parts in the wiring module reduced, but material consumption and processing complexity during the wiring module manufacturing process are also reduced, thus lowering the operating cost of the wiring module.

[0053] Figure 4 This is a schematic diagram of the screw provided in an embodiment of this application. Figure 5 This is a schematic diagram of the structure of the flat washer provided in an embodiment of this application. Figure 6 This is a schematic diagram of the structure of the spring washer provided in an embodiment of this application. Figure 7 This is a cross-sectional view of the screw and washer assembly provided in an embodiment of this application. To improve the reliability of the washer assembly, such as... Figures 4 to 7 As shown, this application further proposes that the wiring module also includes a fixing pin 500. The terminal block 100 has a second mounting hole 120, which is opposite to the first mounting hole 110. The first end 210 has a positioning hole 211, which is opened along the axial direction of the screw 200. The flat washer 300 has a first washer hole 310, and the spring washer 400 has a second washer hole 410. The first washer hole 310, the second washer hole 410, and the positioning hole 211 are interconnected. The fixing pin 500 passes sequentially through the second mounting hole 120, the first washer hole 310, and the second washer before entering the positioning hole 211 and being fixedly connected to the screw 200.

[0054] The second mounting hole 120 refers to a through hole provided on the frame of the terminal block 100. The position of the through hole is symmetrical with the first mounting hole 110 of the screw 200, so that the fixing pin 500 can enter the positioning hole 211 when it passes through.

[0055] The positioning hole 211 is a cylindrical blind hole extending along the axial direction of the screw 200. Specifically, it can be formed by drilling at the first end 210 of the screw 200. The positioning hole 211 can be used to provide an insertion path for the retaining pin 500.

[0056] The first washer hole 310 and the second washer hole 410 refer to the through holes at the center positions of the flat washer 300 and the spring washer 400, respectively. The fixing pin 500 is a cylindrical metal rod, which can be fixed to the positioning hole 211 by means of interference fit or threaded connection. The fixing pin 500 can be used to limit the axial displacement of the flat washer 300 and the spring washer 400.

[0057] Specifically, the retaining pin 500 forms an axial constraint on the washer assembly through the hole structure passing through the flat washer 300 and the spring washer 400. The positioning hole 211 is set along the axis of the screw 200, so that the insertion direction of the retaining pin 500 is consistent with the force direction of the screw 200.

[0058] In summary, this application, through the insertion and engagement of the fixing pin 500 and the positioning hole 211, ensures the stability of the connection between the fixing pin 500 and the screw 200. The assembly of the fixing pin 500 and the screw 200 can be completed solely through drilling and pin insertion, without the need for additional thread machining or welding. The first washer hole 310 on the flat washer 300 and the second washer hole 410 on the spring washer 400 form a continuous channel, ensuring that the fixing pin 500 can pass through both washers simultaneously and form a rigid connection with the screw 200. This connection method eliminates axial movement of the washer assembly under vibration, maintaining the preload of the spring washer 400. Furthermore, it prevents axial displacement of the washer assembly during the preload process, ensuring that the spring washer 400 can continuously provide elastic pressure.

[0059] Further, please continue to refer to Figure 1 , Figures 4 to 7 As shown, the first washer hole 310 can be a stepped hole, and the end of the fixing pin 500 located outside the positioning hole 211 can be provided with a boss 510. The boss 510 is located inside the stepped hole, and the boss 510 is in contact with the hole wall of the stepped hole.

[0060] The stepped hole refers to a hole with a stepped structure inside, and the stepped surface of the stepped hole forms an axial limit with the boss 510. The boss 510 refers to the radially enlarged structure formed at the end of the fixing pin 500, which can be achieved by turning or stamping. The side wall of the boss 510 facing the first end 210 can form a surface contact with the inner wall of the stepped hole.

[0061] Specifically, when the retaining pin 500 is inserted into the first washer hole 310, the boss 510 is embedded in the stepped section of the stepped hole, and the side wall of the boss 510 facing the first end 210 contacts the stepped surface of the stepped hole. The stepped structure of the stepped hole restricts the movement of the boss 510 along the axial direction of the retaining pin 500, while the increased contact area between the boss 510 and the hole wall creates a mechanical interlock between the retaining pin 500 and the flat washer 300. When the screw 200 is subjected to vibration or external force, the engagement between the stepped hole and the boss 510 prevents the retaining pin 500 from axially shifting, thereby preventing loosening between the flat washer 300 and the screw 200. At the same time, the boss 510 can be completely accommodated within the stepped hole, ensuring that the end of the retaining pin 500 does not protrude from the surface of the flat washer 300, thus preventing interference between the retaining pin 500 and the wire 700.

[0062] Compared to existing technologies, the traditional solution uses a planar fit between the fixing pin 500 and the washer hole, resulting in a small contact area and no axial restraint. This makes it prone to gaps and loosening under vibration. This solution, however, uses a stepped hole and a stepped fit between the boss 510, achieving axial restraint while increasing the contact area. This improves connection stability without requiring additional anti-loosening structures.

[0063] In summary, the fit between the stepped hole and the boss 510 reduces the loosening problem caused by vibration at the connection between the washer assembly and the screw 200, and improves connection reliability through the mechanical interlocking structure. Furthermore, the fit between the stepped hole and the boss 510 simplifies the assembly process, avoids the risk of the fixing pin 500 protruding from the surface of the flat washer 300 and interfering with the wire 700, and allows the wiring module to maintain compactness while possessing higher vibration resistance.

[0064] like Figure 1 , Figure 3 , Figure 5 as well as Figure 6 As shown, this application proposes that the flat washer 300 has striped protrusions on the side facing away from the spring washer 400.

[0065] Among them, striped protrusions refer to continuous or discontinuous linear protrusion structures formed on the surface of the flat washer 300 through machining or stamping processes. Specifically, they can be achieved by parallel V-shaped grooves or wavy patterns.

[0066] With the above technical solution, when the flat washer 300 is installed, its striped raised surface directly fits against the contact surface of the wire 700. This increases the contact area between the flat washer 300 and the wire 700, making the fixation between the flat washer 300 and the wire 700 more stable, thereby improving the reliability of the wiring module.

[0067] Figure 8 This is a schematic diagram of the structure of the spring washer in the undeformed state provided in the embodiment of this application. Figure 9 This is a schematic diagram of the structure of the spring washer provided in the embodiment of this application when it is in a compressed deformation state. Figures 7 to 9 As shown, the spring washer 400 can be disc-shaped. When the spring washer 400 is in an undeformed state, the area of ​​the spring washer 400 facing the first end 210 near the second washer hole 410 protrudes from the edge region of the spring washer 400. When the spring washer 400 is in a compressed and deformed state, the area of ​​the spring washer 400 facing the first end 210 near the second washer hole 410 is recessed into the edge region of the spring washer 400.

[0068] The disc-shaped spring washer 400 refers to the curved surface structure of the side of the spring washer 400 facing the first end 210, which is thicker in the center and thinner at the edges. The area of ​​the spring washer 400 near the second washer hole 410 can be the central area of ​​the spring washer 400.

[0069] The convex region in the undeformed state refers to the curved surface formed in the central region of the spring washer 400 in its natural state, arching towards the first end 210. This structure can store elastic potential energy for subsequent compression deformation of the spring washer 400. The concave region in the compression deformation state refers to the reverse deformation of the central part of the spring washer 400 after being subjected to the pressure of the screw 200. At this time, the edge region of the spring washer 400 is higher than the central region of the spring washer 400.

[0070] Specifically, when no tightening force is applied to the screw 200, the central area of ​​the spring washer 400 remains naturally arched, forming a pre-set elastic potential energy reserve. During the wiring operation, as the screw 200 is tightened, the central area of ​​the spring washer 400 is flattened and gradually becomes concave. At this time, the edge area maintains contact with the flat washer 300, and the reverse elastic force generated in the central area is transmitted to the screw 200 through the flat washer 300, forming continuous pressure compensation. When external vibration or temperature changes cause the screw 200 to loosen slightly, the elastic restoring force of the spring washer 400 pushes the flat washer 300 to continuously press the screw 200, thereby maintaining a stable pre-tightened state.

[0071] Through the above technical solution, this application achieves integrated pre-tightening function of the wiring module, eliminating the need for a traditional wiring frame structure while ensuring the stability of the pre-tightening force. This design reduces the number of parts in the wiring module, thereby simplifying the assembly process and reducing the cost of using the wiring module. Simultaneously, the automatic compensation for mechanical loosening through the elastic deformation of the spring washer 400 improves the long-term reliability of the wiring connection.

[0072] Figure 10 This is a schematic diagram of the structure of the stationary contact provided in an embodiment of this application. Figure 1 , Figure 3 as well as Figure 10As shown, the wiring module mentioned in this application also includes a stationary contact 600, which includes a contact portion 610 and a contact platform 620 positioned opposite each other. The contact portion 610 is located in the hollow area and is positioned opposite the screw 200. The contact platform 620 is located outside the terminal block 100. The stationary contact 600 has two reinforcing ribs 630 on the side facing the screw 200, symmetrically arranged along the edge of the stationary contact 600 on the side facing the screw 200.

[0073] The stationary contact 600 is a conductive component used to carry the current path, which can be made by stamping copper alloy. The contact portion 610 is used to clamp the wire 700 with the screw 200 to form an electrical connection, and the contact platform 620 is used to mount the stationary contact. The reinforcing rib 630 is a reinforcing structure that protrudes along the surface of the stationary contact 600, which can be made by stamping to form continuous raised ridges. The reinforcing ribs 630 symmetrically distributed on both sides of the edge of the contact portion 610 form a double support beam structure, which can disperse the force generated by the contactor during the closing or opening process.

[0074] In summary, the contact portion 610 is directly exposed to the hollow area of ​​the terminal block 100, forming a clamping space with the first end 210 of the screw 200 for fixing the wire 700. The contact platform 620 extends to the outside of the terminal block 100 to facilitate contact with the moving contact of the contactor. Two reinforcing ribs 630 extend symmetrically along the longitudinal edge of the stationary contact 600, from the contact portion 610 area to the contact platform 620 area, forming a continuous support structure that runs through the body of the stationary contact 600. When the contactor generates force during closing or opening, the reinforcing ribs 630 form a bending-resistant section through edge support, which can effectively suppress the plastic deformation of the stationary contact 600. At the same time, the symmetrical layout of the two reinforcing ribs 630 can avoid stress concentration caused by unilateral force, further reducing the possibility of deformation of the stationary contact 600.

[0075] Further, please continue to refer to Figure 1 , Figure 3 as well as Figure 10 As shown, the reinforcing rib 630 can be disposed between the contact portion 610 and the contact platform 620. The reinforcing rib 630 is elongated, with one end of the reinforcing rib 630 close to the contact portion 610 and the other end of the reinforcing rib 630 close to the contact platform 620.

[0076] The area between the contact portion 610 and the contact platform 620 refers to the weak part of the stationary contact 600 that bears mechanical stress. This area will bear the maximum bending moment during the closing or opening of the contactor.

[0077] In summary, during the closing or opening of the contactor, the extension direction of the reinforcing rib 630 can remain parallel to the stress transmission direction, so that the shear stress generated at the connection between the contact part 610 and the contact platform 620 is evenly distributed to the entire length of the reinforcing rib 630. This can suppress the plastic deformation of the stationary contact 600 caused by local stress concentration, and thus solve the problem of upward or downward bending deformation of the stationary contact 600 caused by stress concentration during long-term use. This can extend the service life of the wiring module.

[0078] To improve the reliability of the wiring module, please continue to refer to... Figure 1 , Figure 3 as well as Figure 10 As shown, this application also provides striped protrusions on the side of the contact portion 610 facing the screw 200.

[0079] Striped protrusions refer to continuous or discontinuous linear protrusion structures formed on the surface of the contact portion 610 through machining or stamping processes. Specifically, they can be achieved by parallel V-grooves or wavy patterns.

[0080] Through the above technical solution, the contact surface of the wire 700 can fit with the striped protrusions provided on the contact part 610, which can increase the contact area between the contact part 610 and the contact surface of the wire 700, making the fixation between the contact part 610 and the wire 700 more stable, thereby improving the reliability of the wiring module.

[0081] like Figure 1 as well as Figure 10 As shown, this application also provides a contactor, which includes a housing and a wiring module. The stationary contact 600 of the wiring module is fixedly connected to the housing.

[0082] The housing refers to the supporting structure used to carry and secure the internal components of the contactor. It can be made of metal or engineering plastic and is achieved through injection molding, stamping, or casting processes. The function of the housing is to provide a rigid mounting base for the stationary contact 600.

[0083] Through the above technical solution, this application achieves stable installation of the contactor wiring module. The housing serves as a unified mounting base, simplifying the internal structural layout of the contactor and reducing the precision requirements for parts machining.

[0084] Further, please continue to refer to Figure 1 as well as Figure 10 As shown, the stationary contact 600 is provided with a first fixing hole 640, and the bolt passes through the first fixing hole 640 to fix the stationary contact 600 to the housing.

[0085] The first fixing hole 640 refers to the hole structure provided on the surface of the stationary contact 600 for passing bolts. Specifically, it can be implemented as a circular through hole or a threaded hole. The position of the first fixing hole 640 corresponds to the connection point on the housing, so that the stationary contact 600 is rigidly connected to the housing by bolts. The two reinforcing ribs 630 mentioned above can be symmetrically arranged with the first fixing hole 640 as the axis of symmetry.

[0086] In summary, the stationary contact 600 is directly fixed to the housing by bolts through the first fixing hole 640, ensuring that the mating position of the contact part 610 and the screw 200 remains fixed after assembly. By using the housing as a unified load-bearing structure, precise alignment of the contact part 610 and the screw 200 is achieved, while also reducing cumulative errors during the integrated assembly of multiple components.

Claims

1. A wiring module, characterized in that, include: The terminal block has a frame structure with a closed surrounding contour, so that the interior of the terminal block forms a hollow area. The terminal block is provided with a first mounting hole that penetrates the terminal block. A screw is inserted into the first mounting hole. The screw includes a first end and a second end that are positioned opposite each other. The first end is located in the hollow area and is stepped. The second end is located outside the terminal block. A washer assembly is disposed on the side of the first end away from the second end. The washer assembly is fixedly connected to the first end. The washer assembly includes a flat washer and a spring washer. The spring washer is closer to the first end than the flat washer. A portion of the first end extends into the spring washer, and another portion of the first end contacts the surface of the spring washer.

2. The wiring module according to claim 1, characterized in that, It also includes fixing pins; The terminal block is provided with a second mounting hole, which is positioned opposite to the first mounting hole. The first end is provided with a positioning hole, which is opened along the axial direction of the screw; The flat washer has a first washer hole, and the spring washer has a second washer hole. The first washer hole, the second washer hole, and the positioning hole are connected. The fixing pin passes through the second mounting hole, the first washer hole, and the second washer in sequence before entering the positioning hole and being fixedly connected with the screw.

3. The wiring module according to claim 2, characterized in that, The first washer hole is a stepped hole, and the fixing pin has a boss at one end outside the positioning hole; The boss is located inside the stepped hole, and the boss is in contact with the hole wall of the stepped hole.

4. The wiring module according to claim 2, characterized in that, The flat washer has striped protrusions on the side facing away from the spring washer.

5. The wiring module according to claim 2, characterized in that, The spring washer is disc-shaped; When the spring washer is in an undeformed state, the area of ​​the spring washer near the second washer hole on the side facing the first end protrudes from the edge area of ​​the spring washer; When the spring washer is in a compressed and deformed state, the area of ​​the spring washer facing the first end and close to the second washer hole is recessed into the edge area of ​​the spring washer.

6. The wiring module according to any one of claims 1-5, characterized in that, It also includes a stationary contact, which includes a contact portion and a contact platform positioned opposite each other; The contact portion is located within the hollow area, the contact portion is opposite to the screw, and the contact platform is located outside the terminal block; The stationary contact has two reinforcing ribs on the side facing the screw. The two reinforcing ribs are symmetrically arranged on the edge of the stationary contact facing the screw.

7. The wiring module according to claim 6, characterized in that, The reinforcing rib is disposed between the contact portion and the contact platform; The reinforcing rib is long and narrow, with one end close to the contact portion and the other end close to the contact platform.

8. The wiring module according to claim 6, characterized in that, The contact portion has striped protrusions on the side facing the screw.

9. A contactor, characterized in that, Includes a housing and a wiring module as described in any one of claims 1 to 8; The stationary contact of the wiring module is fixedly connected to the housing.

10. The contactor according to claim 9, characterized in that, The stationary contact is provided with a first fixing hole, and a bolt passes through the first fixing hole to fix the stationary contact to the housing.

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