Few-node electromagnetic valve based on integrated structure

Abstract

The few-node electromagnetic valve based on the integrated structure comprises an electromagnetic valve shell, a fixing plate, a coil holder assembly, a coil, an iron core, a push rod, a spring and a connecting plug, a winding pipe of the coil holder assembly and a connecting shell are integrally formed, the inner section of an L-shaped contact pin is directly welded to the end of the coil, and traditional wire connection is omitted; the fixed frame is sleeved outside the coil holder assembly and is riveted with the riveting opening of the fixed plate through the riveting groove, and the joint is provided with an anti-cracking hole; by means of an integrated structure, connecting nodes are reduced, the manufacturing cost is reduced, the structural stability and the driving response speed under high-frequency telescopic vibration are improved, the risks of poor contact and part loosening are reduced, and the electromagnetic valve is suitable for mechanical arm joint driving, automatic production lines and other scenes. The system has the characteristics of low cost, high reliability and accurate driving.

Description

Technical Field

[0001] This utility model relates to the field of automated drive device technology, specifically to a multi-node solenoid valve based on an integrated structure. Background Technology

[0002] Solenoid valves, as actuators that convert electrical energy into mechanical force, are commonly used as telescopic drive components in automation equipment, mechanical transmission, and intelligent equipment. They achieve precise telescopic control of mechanical structures through the reciprocating motion of a push rod, such as in robotic arm joint drives, material pushing in automated production lines, and opening and closing mechanisms of precision instruments. Their basic working principle involves energizing an electromagnetic coil to generate a magnetic field, which drives the push rod to move linearly, thus achieving the telescopic drive function. However, with the increasing demands for response speed, stability, and economy in industrial automation, the traditional solenoid valve as a telescopic drive component has gradually revealed structural design flaws.

[0003] In existing technologies, the connection between the coil and the external circuit of a solenoid valve, which is used as a telescopic actuation component, is usually achieved through a wire connection. For example, Chinese utility model patent CN220168712U discloses a solenoid valve used for fluid control, but its coil connection to the external circuit uses a traditional lead wire structure. If this structure is applied to telescopic actuation scenarios, there are obvious shortcomings: First, the connection between the coil and the connector plug via wires increases the number of components and procurement costs, and the wires are prone to fatigue breakage under high-frequency telescopic vibration. Second, the assembly process requires two connections: one between the coil and the wire, and another between the wire and the connector, which prolongs production time. Multiple connections can also increase contact resistance, affecting the actuation response speed. Finally, too many connection nodes are prone to loosening during continuous telescopic movement, leading to actuation jamming or failure, reducing the reliability of equipment operation.

[0004] To address the problems of high manufacturing cost, complex assembly, and insufficient driving stability of existing solenoid valves used as telescopic drive components, this invention proposes an integrated structural design for a solenoid valve. By optimizing the connection method between the coil and the plug, as well as the support structure, the stability and economy of telescopic drive are improved. Summary of the Invention

[0005] This utility model aims to solve one of the technical problems existing in the prior art.

[0006] This application provides a multi-node solenoid valve based on an integrated structure, including a solenoid valve housing, a fixing plate, a wire frame assembly, a coil, an iron core, a push rod, a spring, and a connecting plug. The connecting plug is fixed on the wire frame assembly and has a pair of pins. Each pin includes an inner section and an outer section that are perpendicular to each other. The outer section is located inside the connecting plug, and the inner section of each pin is connected to both ends of the coil. The connecting plug is fixed on the solenoid valve housing.

[0007] The wire frame assembly includes a winding tube and a connecting shell. The connecting shell is integrally formed with the winding tube. The coil is sleeved on the outside of the winding tube. The iron core is fixed in the inner end of the inner cavity of the winding tube. The push rod is slidably inserted into the outer end of the inner cavity of the winding tube. The spring is set between the push rod and the iron core.

[0008] The winding tube and the connecting shell are integrally formed, and the inner section of the pin passes through the connecting shell and connects to the end of the coil.

[0009] The coil is made of enameled wire, which is wound onto a winding tube by a winding machine, and both ends are welded and fixed to the inner ends of each pin.

[0010] It also includes a fixing bracket, which is fitted outside the wire frame assembly and fixed to the fixing plate at its lower end.

[0011] The fixing frame is U-shaped, with a riveting groove at the lower end and a riveting interface on the fixing plate. The riveting groove and the riveting interface are fixedly connected by riveting.

[0012] Anti-crack holes are provided at the corners of both the riveting groove and the inner end of the riveting interface.

[0013] A positioning component is installed on one side of the solenoid valve housing.

[0014] The positioning assembly includes a positioning shell, a positioning pin, a positioning pin spring, and a baffle. The positioning shell is fixed on the solenoid valve housing, the baffle is fixed on the fixed plate and extends into the bottom of the positioning shell, and the positioning pin is floatingly installed in the positioning shell through the positioning pin spring, with its lower end and upper end protruding out of the positioning shell and the fixed plate, respectively.

[0015] The locating pin has a through hole at the top.

[0016] The beneficial effects of this utility model are as follows:

[0017] Reduce manufacturing costs: The integrated design of the winding tube, connecting shell and connecting plug eliminates the connecting wires in the traditional structure, reducing the cost of component procurement; the direct welding of the coil and the pin replaces the multi-step wire connection, simplifying the assembly process, adapting to automated mass production, and reducing labor costs.

[0018] Improved drive stability: The one-piece molded structure and reduced connection nodes significantly reduce the risk of component loosening under high-frequency telescopic vibration. The anti-crack hole design effectively disperses periodic stress, avoids cracking at the connection points, and ensures the smoothness and consistency of the push rod's telescopic movement.

[0019] Enhanced response speed: Direct welding of the coil and pins reduces electrical connection losses and current transmission delay, making the solenoid valve respond faster to extension and retraction when energized / de-energized, thus improving drive accuracy. Attached Figure Description

[0020] Figure 1This is a three-dimensional view (from an upward-sloping perspective) of the integrated structure-based few-node solenoid valve in Embodiment 1 of this application.

[0021] Figure 2 This is a perspective view of a few-node solenoid valve based on an integrated structure in Embodiment 1 of this application (without the solenoid valve housing).

[0022] Figure 3 This is a three-dimensional view (downward-sloping view) of the integrated structure-based few-node solenoid valve in Embodiment 1 of this application.

[0023] Figure 4 These are perspective views of the wireframe assembly in Embodiments 1 and 2 of this application;

[0024] Figure 5 This is a three-dimensional view (from an upward-sloping perspective) of the integrated structure-based few-node solenoid valve in Embodiment 2 of this application.

[0025] Figure 6 This is a perspective view of a few-node solenoid valve based on an integrated structure in Embodiment 2 of this application (without the solenoid valve housing).

[0026] Figure 7 This is a bottom view of the multi-node solenoid valve based on an integrated structure in Embodiment 2 of this application;

[0027] Figure 8 for Figure 7 Schematic diagram of the cross-section structure in the AA direction.

[0028] Figure Labels

[0029] 1-Solenoid valve housing, 2-Fixing plate, 3-Wire frame assembly, 31-Winding tube, 32-Connecting shell, 4-Coil, 5-Iron core, 6-Push rod, 7-Spring, 8-Connecting plug, 9-Pin, 10-Fixing bracket, 11-Riveting groove, 12-Riveting interface, 13-Anti-crack hole, 14-Positioning assembly, 141-Positioning shell, 142-Positioning pin, 143-Positioning pin spring, 144-Baffle, 145-Through hole. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] The following description, in conjunction with the accompanying drawings, details the integrated, multi-node solenoid valve provided in this application through specific embodiments and application scenarios.

[0033] Example 1:

[0034] This application provides a few-node solenoid valve based on an integrated structure, including a solenoid valve housing 1, a fixing plate 2, a wire frame assembly 3, a coil 4, an iron core 5, a push rod 6, a spring 7, and a connecting plug 8. The connecting plug 8 is fixed on the wire frame assembly 3. The connecting plug 8 has a pair of pins 9. The pins 6 include mutually perpendicular inner sections and outer sections. The outer section is located in the connecting plug 8. The inner section of each pin 9 is connected to both ends of the coil 4. The connecting plug 8 is located in the solenoid valve housing 1.

[0035] In this embodiment of the application, the wire frame assembly 3 includes a winding tube 31 and a connecting shell 32. The connecting shell 32 is integrally formed with the winding tube 31. The coil 4 is sleeved on the outside of the winding tube 31. The iron core 5 is fixed in the inner end of the inner cavity of the winding tube 31. The push rod 6 is slidably inserted in the outer end of the inner cavity of the winding tube 31. The spring 7 is disposed between the push rod 6 and the iron core 5.

[0036] In this embodiment of the application, the winding tube 31 and the connecting shell 32 are integrally formed, and the inner section of the pin 9 passes through the connecting shell 32 and connects to the end of the coil 4.

[0037] In this embodiment of the application, the coil 4 is an enameled wire, which is wound onto the winding tube 31 by a winding machine, and its two ends are welded and fixed to the inner ends of each pin 9.

[0038] In this embodiment of the application, a fixing frame 10 is also included, which is sleeved outside the wire frame assembly 3 and its lower end is fixedly connected to the fixing plate 2.

[0039] In this embodiment of the application, the fixing frame 10 is U-shaped, with a riveting groove 11 at the lower end and a riveting interface 12 at the fixing plate 2. The riveting groove 11 and the riveting interface 12 are fixedly connected by riveting.

[0040] In this embodiment of the application, anti-crack holes 13 are provided at the corner positions of the inner ends of the riveting groove 11 and the riveting interface 12.

[0041] like Figures 1 to 4 As shown, due to the aforementioned structure, from a structural design perspective, the winding tube 31 and the connecting shell 32 are integrally formed in this application. The inner end of the pin 9 directly passes through the connecting shell 32 and connects to the end of the coil 4, and both ends of the coil 4 are respectively welded and fixed to the inner ends of each pin 9. This design eliminates the need for the wires used to connect the coil 4 and the connecting plug 8 in the prior art, reducing the procurement cost of this component.

[0042] In terms of assembly process, the existing technology requires first connecting the coil 4 to the wire, and then connecting the wire to the connector 8, which involves at least two connection processes. This not only increases the number of manual operation steps, but may also lead to product quality problems due to improper connection. In contrast, the connection between the coil 4 and the pin 9 in this application is completed by welding in one step, which simplifies the assembly process, shortens the production time, and reduces labor costs.

[0043] Meanwhile, the integrated winding tube 31 and connecting shell 32 structure, as well as the direct welding method between the pin 9 and the coil 4, reduce the number of connection nodes. The reduction of connection nodes means that the probability of failure caused by loose connecting parts or poor contact is reduced, thereby reducing the rework rate and scrap rate in the product manufacturing process and indirectly reducing manufacturing costs.

[0044] Furthermore, the reduction in the number of components simplifies supply chain management, reduces inventory and logistics costs, and further enhances the cost competitiveness of the solenoid valve in this application.

[0045] When the external circuit supplies power to the coil 4 through the pin 9 of the connector 8, the coil 4 is made of enameled wire and is wound on the winding tube 31. The coil 4 will generate a magnetic field after being energized. This magnetic field acts on the iron core 5 fixed inside the inner end of the winding tube 31, causing the iron core 5 to become magnetic.

[0046] Under the influence of the magnetic field, the iron core 5 will attract the push rod 6, which is slidably inserted at the outer end of the inner cavity of the winding tube 31, and push the push rod 6 to move outward along the inner cavity of the winding tube 31. At this time, the spring 7 located between the push rod 6 and the iron core 5 will be compressed and store elastic potential energy.

[0047] When the external circuit is de-energized, coil 4 no longer generates a magnetic field, the magnetism of iron core 5 disappears, and the attraction force on push rod 6 also disappears. At this time, the compressed spring 7 releases its elastic potential energy, pushing push rod 6 to move inward along the inner cavity of winding tube 31 and return to the initial position.

[0048] Throughout the entire operation, the wire frame assembly 3 ensures overall stability through the integrated structure of the winding tube 31, the connecting shell 32, and the connecting plug 8. The fixing frame 10 is fitted outside the wire frame assembly 3, and its lower end is riveted and fixed to the riveting interface 12 on the fixing plate 2 through the riveting groove 11, providing a stable support for the wire frame assembly 3. Furthermore, the anti-crack hole 13 at the corner of the inner end of the riveting groove 11 and the corner formed by the connection between the riveting interface 12 and the fixing frame 10 effectively prevents the riveted part from cracking due to stress during riveting.

[0049] Mounting holes are provided on both the solenoid valve housing 1 and the fixing plate 2, and fasteners (bolts and nuts) are used to fix the solenoid valve housing 1 and the fixing plate 2 together.

[0050] Example 2:

[0051] This application provides a few-node solenoid valve based on an integrated structure, including a solenoid valve housing 1, a fixing plate 2, a wire frame assembly 3, a coil 4, an iron core 5, a push rod 6, a spring 7, and a connecting plug 8. The connecting plug 8 is fixed on the wire frame assembly 3 and has a pair of pins 9. The inner end of each pin 9 is connected to both ends of the coil 4, and the pins 9 are perpendicular to the axis of the wire frame assembly 3.

[0052] In this embodiment of the application, the positioning component 14 includes a positioning shell 141, a positioning pin 142, a positioning pin spring 143, and a baffle 144. The positioning shell 141 is fixed on the solenoid valve housing 1, the baffle 144 is fixed on the fixing plate 2 and extends into the bottom of the positioning shell 141, and the positioning pin 142 is floatingly installed in the positioning shell 141 through the positioning pin spring 143, with its lower end and upper end respectively protruding out of the positioning shell 141 and the fixing plate 2.

[0053] In this embodiment of the application, the upper end of the positioning pin 142 is provided with a through hole 145.

[0054] like Figures 4 to 8 As shown, due to the aforementioned structure, from a structural design perspective, the winding tube 31 and the connecting shell 32 are integrally formed in this application. The inner end of the pin 9 directly passes through the connecting shell 32 and connects to the end of the coil 4, and both ends of the coil 4 are respectively welded and fixed to the inner ends of each pin 9. This design eliminates the need for the wires used to connect the coil 4 and the connecting plug 8 in the prior art, reducing the procurement cost of this component.

[0055] In terms of assembly process, the existing technology requires first connecting the coil 4 to the wire, and then connecting the wire to the connector 8, which involves at least two connection processes. This not only increases the number of manual operation steps, but may also lead to product quality problems due to improper connection. In contrast, the connection between the coil 4 and the pin 9 in this application is completed by welding in one step, which simplifies the assembly process, shortens the production time, and reduces labor costs.

[0056] The positioning housing 141 is fixed on the solenoid valve housing 1, the baffle 144 is fixed on the fixing plate 2 and extends into the bottom of the positioning housing 141, and the positioning pin 142 is floatingly installed in the positioning housing 141 through the positioning pin spring 143. Its lower end and upper end protrude out of the positioning housing 141 and the fixing plate 2 respectively, so as to achieve precise positioning during the installation and operation of the solenoid valve. The through hole 145 at the upper end of the positioning pin 142 can be used to install cable ties, which facilitates the operation and adjustment of the positioning pin 142.

[0057] Mounting holes are provided on both the solenoid valve housing 1 and the fixing plate 2, and fasteners (bolts and nuts) are used to fix the solenoid valve housing 1 and the fixing plate 2 together.

[0058] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0059] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A multi-node solenoid valve based on an integrated structure, comprising a solenoid valve housing, a mounting plate, a wire frame assembly, a coil, an iron core, a push rod, a spring, and a connecting plug, characterized in that, The connector is fixed on the wire frame assembly. The connector has a pair of pins, each pin having an inner section and an outer section that are perpendicular to each other. The outer section is located inside the connector. The inner section of each pin is connected to both ends of the coil. The connector is fixed on the solenoid valve housing.

2. The multi-node solenoid valve based on an integrated structure according to claim 1, characterized in that, The wire frame assembly includes a winding tube and a connecting shell. The connecting shell is integrally formed with the winding tube. The coil is sleeved on the outside of the winding tube. The iron core is fixed in the inner end of the inner cavity of the winding tube. The push rod is slidably inserted in the outer end of the inner cavity of the winding tube. The spring is disposed between the push rod and the iron core.

3. A multi-node solenoid valve based on an integrated structure according to claim 2, characterized in that, The winding tube and the connecting shell are integrally formed, and the inner section of the pin extends out of the connecting shell and connects to the end of the coil.

4. A multi-node solenoid valve based on an integrated structure according to claim 2, characterized in that, The coil is an enameled wire, which is wound onto a winding tube by a winding machine, and both ends are welded and fixed to the inner ends of each pin.

5. A multi-node solenoid valve based on an integrated structure according to claim 2, characterized in that, It also includes a fixing bracket, which is fitted outside the wire frame assembly and fixed to the fixing plate at its lower end.

6. A multi-node solenoid valve based on an integrated structure according to claim 5, characterized in that, The fixing frame is U-shaped with a riveting groove at the lower end and a riveting interface on the fixing plate. The riveting groove and the riveting interface are fixedly connected by riveting.

7. A multi-node solenoid valve based on an integrated structure according to claim 6, characterized in that, Anti-crack holes are provided at the corners of the inner ends of the riveting groove and the riveting interface.

8. A multi-node solenoid valve based on an integrated structure according to claim 1, characterized in that, A positioning component is installed on one side of the solenoid valve housing.

9. A multi-node solenoid valve based on an integrated structure according to claim 8, characterized in that, The positioning assembly includes a positioning shell, a positioning pin, a positioning pin spring, and a baffle. The positioning shell is fixed on the solenoid valve housing, the baffle is fixed on the fixing plate and extends into the bottom of the positioning shell, and the positioning pin is floatingly installed in the positioning shell through the positioning pin spring, with its lower end and upper end protruding out of the positioning shell and the fixing plate, respectively.

10. A multi-node solenoid valve based on an integrated structure according to claim 9, characterized in that, The locating pin has a through hole at its upper end.

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