Low-node electromagnetic valve based on integrated structure

Abstract

The low-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, a connecting shell and the connecting plug of the coil holder assembly are integrally formed, the inner end of a contact pin of the connecting plug 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 plate of the fixed plate through the riveting groove, and an anti-cracking hole is formed in the joint; 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] The utility model relates to the technical field of automatic drive devices, in particular to a low-node solenoid valve based on an integrated structure. Background Art

[0002] Solenoid valves, actuators that convert electrical energy into mechanical force, are often used as telescopic drive components in automation equipment, mechanical transmissions, and intelligent devices. They achieve precise telescopic control of mechanical structures through the reciprocating motion of a push rod, such as in robotic arm joint actuation, material pushers on automated production lines, and the opening and closing mechanisms of precision instruments. Their basic operating principle is to generate a magnetic field through an electromagnetic coil, driving the push rod's linear motion to achieve the telescopic drive function. As industrial automation continues to demand higher response speeds, stability, and cost-effectiveness from drive components, traditional solenoid valves used as telescopic drive components have gradually exposed structural design flaws.

[0003] In the prior art, the connection between the coil and the external circuit of the solenoid valve, which is a telescopic drive component, usually adopts a wire transfer method. For example, the Chinese utility model patent with authorization announcement number CN220168712U discloses a solenoid valve. Although it is used for fluid control, the connection between its coil and the external circuit adopts a traditional lead wire structure. If such a structure is applied to the telescopic drive scenario, there are obvious shortcomings: first, the coil and the connecting plug are connected by a wire, which increases the number of parts and procurement costs, and the wire is prone to fatigue fracture in a high-frequency telescopic vibration environment; second, the assembly process requires completing two connections between the coil and the wire, and the wire and the plug, which prolongs the production time, and multiple connections are likely to increase the contact resistance, affecting the drive response speed; finally, too many connection nodes are prone to loosening during continuous telescopic movement, causing the drive to jam or fail, reducing the reliability of equipment operation.

[0004] In order to solve the problems of high manufacturing cost, complex assembly, and insufficient driving stability of the existing solenoid valve as a telescopic drive component, the utility model proposes a solenoid valve with an integrated structural design, which improves the stability and economy of the telescopic drive by optimizing the connection method between the coil and the plug and the support structure. Utility Model Content

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

[0006] The present application provides a low-node solenoid valve based on an integrated structure, including a solenoid valve housing, a fixing plate, a wire rack assembly, a coil, an iron core, a push rod, a spring and a connecting plug. The connecting plug is fixed on the wire rack assembly. The connecting plug has a pair of pins. The inner ends of each pin are respectively connected to the two ends of the coil. The pins are perpendicular to the axis of the wire rack assembly. A groove is provided on the solenoid valve housing for accommodating the connecting plug.

[0007] The wire rack assembly includes a wire coil tube and a connecting shell. The connecting shell is integrally formed with the wire coil tube. The coil is sleeved outside the wire coil tube. The iron core is fixedly arranged at the inner end of the inner cavity of the wire coil tube. The push rod is slidably inserted into the outer end of the inner cavity of the wire coil tube. A spring is arranged between the push rod and the iron core.

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

[0009] The coil is an enameled wire, which is wound on the wire coil tube by a winding machine, and the two ends are respectively welded and fixed to the inner ends of the respective pins.

[0010] It further includes a fixing frame, which is sleeved outside the wire rack assembly, and the lower end is fixedly connected to the fixing plate.

[0011] The fixing frame is in a U shape, and a riveting groove is opened at the lower end. A riveting plate is fixedly arranged on the fixing plate, and the riveting groove and the riveting plate are fixedly connected by riveting.

[0012] Anti-cracking holes are opened at the corner positions at the inner end of the riveting groove and the corner positions formed by the connection between the riveting plate and the fixing frame.

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

[0014] The positioning component includes a positioning shell, a positioning pin, a positioning pin spring and a baffle plate. The positioning shell is fixedly arranged on the solenoid valve housing. The baffle plate is fixedly arranged on the fixing plate and extends into the bottom of the positioning shell. The positioning pin is floatingly installed in the positioning shell through the positioning pin spring, and the lower end and the upper end respectively pass through the positioning shell and the fixing plate.

[0015] A through hole is opened at the upper end of the positioning pin.

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

[0017] Reduce manufacturing costs: Through the integrated design of the wire coil tube, the connecting shell and the connecting plug, the connecting wires in the traditional structure are eliminated, reducing the procurement cost of parts; the direct welding of the coil and the pin replaces the multi-step wire connection, simplifies the assembly process, adapts to automated mass production, and reduces labor costs.

[0018] Improve driving stability: The integrated structure and the reduced connection nodes significantly reduce the risk of component loosening under high-frequency telescopic vibration. The anti-cracking hole design effectively disperses the periodic stress, avoids cracking at the connection part, and ensures the smoothness and consistency of the telescopic movement of the push rod. <0OO0039>

[0019] Enhance response speed: The direct welding of the coil and the pin reduces the electrical connection loss, reduces the current transmission delay, enables the solenoid valve to have a faster telescopic response when powered on / off, and improves the driving accuracy. Description of the Drawings

[0020] Figure 1A three-dimensional diagram of a low-node solenoid valve based on an integrated structure in Example 1 of the present application (from an upward oblique viewing angle);

[0021] Figure 2 This is a three-dimensional diagram of a low-node solenoid valve based on an integrated structure in Example 1 of the present application (without the solenoid valve housing);

[0022] Figure 3 This is a three-dimensional diagram of a low-node solenoid valve based on an integrated structure in Example 1 of the present application (from a downward oblique viewing angle);

[0023] Figure 4 A three-dimensional diagram of the wire rack assembly in Examples 1 and 2 of the present application;

[0024] Figure 5 A three-dimensional diagram of a low-node solenoid valve based on an integrated structure in Example 2 of the present application (from an upward oblique viewing angle);

[0025] Figure 6 This is a three-dimensional diagram of a low-node solenoid valve based on an integrated structure in Example 2 of the present application (without the solenoid valve housing);

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

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

[0028] Reference numerals

[0029] 1-solenoid valve housing, 2-fixing plate, 3-wire rack assembly, 31-winding bobbin, 32-connecting shell, 4-coil, 5-iron core, 6-push rod, 7-spring, 8-connecting plug, 9-pin, 10-fixing frame, 11-riveting groove, 12-riveting plate, 13-anti-crack hole, 14-positioning assembly, 141-positioning shell, 142-positioning pin, 143-positioning pin spring, 144-baffle, 145-perforation. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0031] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally indicates an "or" relationship between the associated objects before and after.

[0032] The following will combine with the attached drawings and through specific embodiments and their application scenarios, a detailed description will be given to the low-node solenoid valve provided by the embodiments of this application based on an integrated structure.

[0033] Embodiment 1:

[0034] The embodiments of this application provide a low-node solenoid valve based on an integrated structure, including a solenoid valve housing 1, a fixing plate 2, a bobbin assembly 3, a coil 4, an iron core 5, a push rod 6, a spring 7, and a connection plug 8. The connection plug 8 is fixedly arranged on the bobbin assembly 3. The connection plug 8 has a pair of pins 9, and the inner ends of each pin 9 are respectively connected to both ends of the coil 4. The pins 9 are perpendicular to the axis of the bobbin assembly 3. A groove is opened on the solenoid valve housing 1 for accommodating the connection plug 8.

[0035] In this embodiment of this application, the bobbin assembly 3 includes a bobbin 31 and a connection shell 32. The connection shell 32 is integrally formed with the bobbin 31. The coil 4 is sleeved outside the bobbin 31. The iron core 5 is fixedly arranged at the inner end of the cavity of the bobbin 31. The push rod 6 is slidably inserted into the outer end of the cavity of the bobbin 31. The spring 7 is arranged between the push rod 6 and the iron core 5.

[0036] In this embodiment of this application, the bobbin 31, the connection shell 32, and the connection plug 8 are integrally formed. The inner end of the pin 9 passes through the connection shell 32 and then connects to the end of the coil 4.

[0037] In this embodiment of this application, the coil 4 is an enameled wire, wound around the bobbin 31 by a winding machine, and both ends are welded and fixed to the inner ends of the respective pins 9.

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

[0039] In this embodiment of this application, the fixing frame 10 is in a U-shape, and a riveting groove 11 is opened at the lower end. A riveting plate 12 is fixedly arranged on the fixing plate 2. The riveting groove 11 and the riveting plate 12 are fixedly connected by riveting.

[0040] In this embodiment of the present application, anti-crack holes 13 are both provided at the corner positions at the inner ends of the rivet grooves 11 and at the corner positions formed by the connection between the rivet plates 12 and the fixing frame 10 .

[0041] like Figures 1 to 4 As shown, due to the above-mentioned structure, from a structural design perspective, the winding bobbin 31, connecting shell 32 and connecting plug 8 in this application are integrally formed. The inner ends of the pins 9 directly pass through the connecting shell 32 and connect to the ends of the coil 4. The two ends of the coil 4 are respectively welded to the inner ends of the pins 9. This design eliminates the wires used to connect the coil 4 and the connecting plug 8 in the prior art, reducing the procurement cost of the wire components.

[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 connecting plug 8, involving at least two connection steps, which not only increases the manual operation steps, but may also cause product quality risks due to improper connection. In this application, the connection between the coil 4 and the pin 9 is completed in one time by welding, which simplifies the assembly process, shortens the production time, and reduces labor costs.

[0043] At the same time, the one-piece structure of the winding tube 31, the connecting shell 32 and the connecting plug 8, as well as the direct welding method of 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 problems such as loose connection parts and poor contact is reduced, thereby reducing the rework rate and scrap rate in the product production process, and indirectly reducing the manufacturing cost.

[0044] In addition, the reduction in the number of parts can simplify supply chain management, reduce inventory costs and logistics costs, and further enhance the cost competitiveness of the solenoid valve of this application.

[0045] When the external circuit supplies power to the coil 4 through the pin 9 of the connecting plug 8, the coil 4 will generate a magnetic field after being energized because the coil 4 is an enameled wire and is wound on the winding bobbin 31. This magnetic field acts on the iron core 5 fixed at the inner end of the inner cavity of the winding bobbin 31, causing the iron core 5 to become magnetic.

[0046] Under the action of the magnetic field force, the iron core 5 will generate an attractive force on the push rod 6 that is slidably inserted in the outer end of the inner cavity of the winding tube 31, pushing the push rod 6 to move along the inner cavity of the winding tube 31 toward the outer end. At this time, the spring 7 located between the push rod 6 and the iron core 5 will be compressed to store elastic potential energy.

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

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

[0049] The groove on the solenoid valve housing 1 accommodates the connecting plug 8, further ensuring the compactness and stability of the overall structure.

[0050] The solenoid valve housing 1 and the fixing plate 2 are both provided with mounting holes, and the solenoid valve housing 1 and the fixing plate 2 are fixed to each other by fasteners (bolts and nuts).

[0051] Example 2:

[0052] An embodiment of the present application provides a low-node solenoid valve based on an integrated structure, including a solenoid valve housing 1, a fixed 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 inner ends of each pin 9 are respectively connected to the two ends of the coil 4. The pins 9 are perpendicular to the axis of the wire frame assembly 3. A groove is provided on the solenoid valve housing 1 for accommodating the connecting plug 8.

[0053] In this embodiment of the present application, the positioning assembly 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 fixed 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, and the lower end and the upper end respectively pass through the positioning shell 141 and the fixed plate 2.

[0054] In this embodiment of the present application, a through hole 145 is formed at the upper end of the positioning pin 142 .

[0055] like Figures 4 to 8 As shown, due to the above-mentioned structure, from a structural design perspective, the winding bobbin 31, connecting shell 32 and connecting plug 8 in this application are integrally formed. The inner ends of the pins 9 directly pass through the connecting shell 32 and connect to the ends of the coil 4. The two ends of the coil 4 are respectively welded to the inner ends of the pins 9. This design eliminates the wires used to connect the coil 4 and the connecting plug 8 in the prior art, reducing the procurement cost of the wire components.

[0056] In terms of assembly process, the existing technology requires first connecting the coil 4 to the wire, and then connecting the wire to the connecting plug 8, involving at least two connection steps, which not only increases the manual operation steps, but may also cause product quality risks due to improper connection. In this application, the connection between the coil 4 and the pin 9 is completed in one time by welding, which simplifies the assembly process, shortens the production time, and reduces labor costs.

[0057] The positioning shell 141 is fixed on the solenoid valve housing 1, the baffle 144 is fixed on the fixed 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. Its lower end and upper end respectively pass through the positioning shell 141 and the fixed plate 2, so that precise positioning can be achieved 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 a cable tie, which facilitates the operation and adjustment of the positioning pin 142. The groove on the solenoid valve housing 1 accommodates the connecting plug 8, further ensuring the compactness and stability of the overall structure.

[0058] The solenoid valve housing 1 and the fixing plate 2 are both provided with mounting holes, and the solenoid valve housing 1 and the fixing plate 2 are fixed to each other by fasteners (bolts and nuts).

[0059] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0060] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A low-node solenoid valve based on an integrated structure, comprising 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, characterized in that: The connecting plug is fixedly arranged on the wire holder assembly. The connecting plug has a pair of pins, and the inner ends of each pin are respectively connected to the two ends of the coil. The pins are perpendicular to the axis of the wire holder assembly. A groove is formed on the solenoid valve housing for accommodating the connecting plug.

2. A low-node solenoid valve based on an integrated structure according to claim 1, characterized in that: The wire holder assembly includes a bobbin and a connecting shell. The connecting shell and the bobbin are integrally formed. The coil is sleeved outside the bobbin. The iron core is fixedly arranged at the inner end of the inner cavity of the bobbin. The push rod is slidably inserted into the outer end of the inner cavity of the bobbin. The spring is arranged between the push rod and the iron core.

3. A low-node solenoid valve based on an integrated structure according to claim 2, characterized in that: The bobbin, the connecting shell and the connecting plug are integrally formed. The inner end of the pin passes through the connecting shell and then connects to the end of the coil.

4. The low-node solenoid valve based on an integrated structure according to claim 2, characterized in that: The coil is an enameled wire, which is wound around the bobbin by a winding machine, and the two ends are respectively welded and fixed to the inner ends of each pin.

5. The low-node solenoid valve based on an integrated structure according to claim 2, characterized in that: It further includes a fixing frame, which is sleeved outside the wire holder assembly and fixedly connected to the fixing plate at the lower end.

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

7. The low-node solenoid valve based on an integrated structure according to claim 6, characterized in that: Anti-cracking holes are formed at the corner positions of the inner end of the riveting groove and the corner positions formed by the connection between the riveting plate and the fixing frame.

8. The low-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. The low-node solenoid valve based on an integrated structure according to claim 8, characterized in that: The positioning component includes a positioning shell, a positioning pin, a positioning pin spring and a baffle. The positioning shell is fixedly arranged on the solenoid valve housing. The baffle is fixedly arranged on the fixing plate and extends into the bottom of the positioning shell. The positioning pin is floatingly installed in the positioning shell through the positioning pin spring, and the lower end and the upper end respectively pass through the positioning shell and the fixing plate.

10. The low-node solenoid valve based on an integrated structure according to claim 9, characterized in that: A through hole is formed at the upper end of the positioning pin.

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