Metal terminal for electromagnetic valve coil assembly and electromagnetic valve coil assembly

Abstract

The metal terminal for the electromagnetic valve coil assembly can be used for being connected with a coil, the metal terminal for the electromagnetic valve coil assembly comprises a main body part, a mounting part, a connecting part and a winding part, the main body part is provided with a first end and a second end which are opposite, the mounting part is arranged at the second end of the main body part, and the connecting part is arranged at the second end of the main body part. The connecting part is provided with a third end and a fourth end which are opposite to each other, the third end of the connecting part is connected with one side of the main body part, the fourth end of the connecting part is connected with the winding part, so that the winding part and the mounting part are separately arranged relative to the main body part, and the winding part is used for winding and fixing a lead of a coil. According to the invention, the winding part and the main body part are arranged at an interval, so that the winding difficulty of the lead can be reduced, the production efficiency and the product yield are improved, the production cost of the product is further reduced, the inclination of the mounting part can be avoided, and it is ensured that the mounting part can be accurately inserted into the circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a metal terminal for an electromagnetic valve coil assembly and an electromagnetic valve coil assembly. Background Art

[0002] The solenoid valve coil assembly includes a coil and a metal terminal, the metal terminal includes a main body and a mounting portion, the lead of the coil is connected to the main body of the metal terminal, and the coil is connected to the circuit board through the mounting portion of the metal terminal. In the prior art, the winding equipment needs to first wind the lead to the main body of the metal terminal from one side of the mounting portion of the metal terminal, and then fix the lead to the main body of the metal terminal by welding. However, when the mounting portion of the metal terminal is too long, it increases the difficulty of the winding equipment to wind the lead from the mounting portion of the metal terminal to the main body of the metal terminal, resulting in low production efficiency and low product yield, thereby increasing the production cost of the product. At the same time, when the lead is welded and fixed to the main body of the metal terminal, the main body of the metal terminal is prone to bending or deformation, causing the mounting portion to be skewed, and the mounting portion cannot be accurately positioned with the circuit board.

[0003] Therefore, the existing metal terminals need to be improved. Summary of the invention

[0004] The purpose of the utility model is to provide a metal terminal for a solenoid valve coil assembly and a solenoid valve coil assembly, which can not only reduce the difficulty of lead winding, thereby improving production efficiency and product yield, and further reducing the production cost of the product, but also avoid the installation part from being skewed, ensuring that the installation part can be accurately inserted into the circuit board.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A metal terminal for an electromagnetic valve coil assembly can be used to connect a coil. The metal terminal includes: a main body, a mounting portion, a connecting portion and a winding portion. The main body has a first end and a second end relative to each other. The mounting portion is arranged at the second end of the main body. The connecting portion has a third end and a fourth end relative to each other. The third end of the connecting portion is connected to one side of the main body, and the fourth end of the connecting portion is connected to the winding portion so that the winding portion and the mounting portion are separated relative to the main body. The winding portion is used to wind and fix the lead of the coil.

[0007] Preferably, the connecting portion is bent and extended from the main body to form an angle, so that the winding portion is away from the main body; or,

[0008] The connecting portion is bent in the reverse direction from the main body portion and extends into a U shape, so that the winding portion is arranged at the back of the main body portion.

[0009] Preferably, the wire winding portion comprises a first wire winding portion, a second wire winding portion and a wire clamping portion located between the first wire winding portion and the second wire winding portion, and the wire clamping portion is used to clamp the lead wire.

[0010] Preferably, the mounting portion comprises a first mounting portion and a second mounting portion, and the first mounting portion is arranged to be bent and extended; or,

[0011] The first mounting portion is arranged to extend in a straight line.

[0012] Preferably, the first mounting portion includes a first part and a second part, the first part is connected to the second end of the main body, the second part is connected to the second mounting portion, and the wire clamping portion is located above the first part; and / or,

[0013] The second mounting portion is provided with a mounting foot for mounting to a circuit board, wherein the mounting foot is a needle-type structure for inserting and soldering into a through hole of the circuit board, or the mounting foot is a fisheye-type structure for pressing into the through hole of the circuit board.

[0014] A solenoid valve coil assembly comprises a metal terminal, a coil and a support platform as described in any one of the above items, wherein the first end of the metal terminal body is fixedly connected to the support platform, and the lead wire of the coil is fixedly connected to the winding part by welding.

[0015] Preferably, the metal terminals are arranged in pairs on the carrier platform, wherein the pair of metal terminals includes a first metal terminal and a second metal terminal, the first metal terminal and the second metal terminal are symmetrically arranged, and the distance between the winding portion of the first metal terminal and the winding portion of the second metal terminal is greater than the distance between the main body of the first metal terminal and the main body of the second metal terminal; and / or,

[0016] At least one wiring groove is arranged on the supporting platform, and the wiring groove is extended along the insertion direction and is used for the lead wire of the coil to pass through.

[0017] Preferably, it further comprises a clamping piece, which is arranged on the metal terminal and / or the supporting platform, and is made of metal. When the solenoid valve coil assembly is inserted into the housing, the clamping piece is engaged with the housing to limit the movement of the solenoid valve coil assembly in the insertion direction; and / or,

[0018] The mounting portion of the metal terminal is provided with a fixing foot. When the solenoid valve coil assembly is inserted into the housing, the fixing foot is engaged with the housing to limit the movement of the solenoid valve coil assembly in the insertion direction.

[0019] Preferably, the mounting portion of the first metal terminal and the mounting portion of the second metal terminal both have a first mounting portion and a second mounting portion, the two ends of the first mounting portion are respectively connected to the second end of the main body and the second mounting portion, and the first mounting portions of the first and second metal terminals are offset inwardly relative to the corresponding second mounting portions so that the distance between the second mounting portions of the first and second metal terminals is greater than the distance between the corresponding main body portions.

[0020] Preferably, it also includes a coil carrier and an outer cover, the coil is arranged on the outer circumference of the coil carrier, the outer cover is arranged on the periphery of the coil and the coil carrier, one end of the supporting platform is arranged on the coil carrier, and the other end of the supporting platform protrudes from the outer cover.

[0021] Compared with the prior art, the beneficial effects of the present invention include at least:

[0022] The metal terminal for the solenoid valve coil assembly and the solenoid valve coil assembly of the utility model are arranged so that the winding part is spaced apart from the main body part and the mounting part, thereby increasing the working space of the winding equipment. The winding equipment can not only wind the lead wire on the winding part more conveniently, but also the winding equipment will not cause the main body part and the mounting part to bend or deform, thereby improving production efficiency and product yield, and further reducing the production cost of the product. At the same time, when the lead wire is welded to the winding part, since the main body part and the winding part are spaced apart, the influence of welding on the main body part can be greatly reduced or the main body part will not be affected by welding, and the main body part will not be bent or deformed to cause the mounting part to be skewed, thereby ensuring the accuracy of the position of the mounting part, and further ensuring that the mounting part can be accurately inserted into the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an exploded schematic diagram of a solenoid valve coil assembly according to an embodiment of the utility model.

[0024] Figure 2 It is a three-dimensional structural schematic diagram of a solenoid valve coil assembly according to an embodiment of the utility model.

[0025] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A in the middle.

[0026] Figure 4 It is an exploded schematic diagram of another solenoid valve coil assembly according to an embodiment of the utility model.

[0027] Figure 5 It is a three-dimensional structural schematic diagram of another solenoid valve coil assembly according to an embodiment of the utility model.

[0028] Figure 6 yes Figure 5 A local enlarged schematic diagram of point B in the middle.

[0029] In the figure: 100, solenoid valve coil assembly; 1, metal terminal; 11, main body; 111, first end; 112, second end; 12, mounting portion; 121, first mounting portion; 1211, first part; 1212, second part; 122, second mounting portion; 1221, mounting foot; 123, fixing foot; 13, connecting portion; 131, third end; 132, fourth end; 14, winding portion; 141, first winding portion; 142, second winding portion; 143, clamping portion; 15, first metal terminal; 16, second metal terminal; 2, coil; 21, lead wire; 3, carrier platform; 31, wiring groove; 4, clamping piece; 41, first barb; 5, coil carrier; 6, outer cover; 200, shell. DETAILED DESCRIPTION

[0030] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0031] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0032] Reference Figures 1 to 6 The utility model provides a metal terminal 1 for a solenoid valve coil assembly and a solenoid valve coil assembly 100. The solenoid valve coil assembly 100 includes: a metal terminal 1, a coil 2 and a carrier 3. The metal terminal 1 is arranged on the carrier 3 by being integrally embedded or assembled, and the lead 21 of the coil 2 is electrically connected to the metal terminal 1.

[0033] Specifically, the metal terminal 1 may include a main body 11, a mounting portion 12, a connecting portion 13 and a winding portion 14. The main body 11 has a first end 111 and a second end 112 opposite to each other. The mounting portion 12 is disposed at the second end 112 of the main body 11, that is, the mounting portion 12 is bent and extended from the second end 112 of the main body 11. The connecting portion 13 has a third end 131 and a fourth end 132 opposite to each other. The third end 131 of the connecting portion 13 is connected to one side of the main body 11, that is, the connecting portion 13 is bent and extended from one side of the main body 11 or is straightly extended. The fourth end 132 of the connecting portion 13 is connected to the winding portion 14. The winding portion 14 and the connecting portion 13 may be vertically or approximately vertically arranged. The winding portion 14 and the main body 11 are respectively arranged at two ends of the connecting portion 13, so that the winding portion 14 is spaced apart from the main body 11, and the extension direction of the mounting portion 12 is different from the extension direction of the connecting portion 13, so that the winding portion 14 and the mounting portion 12 are also spaced apart, so that the winding portion 14 and the mounting portion 12 are separated from the main body 11, and the winding portion 14 is used to wind and fix the lead 21 of the coil 2.

[0034] Each metal terminal 1 may be provided with one or more winding parts 14, and each winding part 14 may fix one or more lead wires 21. In this embodiment, each metal terminal 1 is provided with one winding part 14, and each winding part 14 fixes one lead wire 21. The lead wire 21 may be an enameled wire, and the enameled wire includes a conductor located inside and an insulating layer covering the outer periphery of the conductor.

[0035] As a preferred method, refer to Figure 3 , Figure 6The winding part 14 may include a first winding part 141, a second winding part 142, and a clamping part 143 between the first winding part 141 and the second winding part 142. The first winding part 141 is arranged near the fourth end 132 of the connecting part 13. The clamping part 143 is used to clamp the lead 21. The clamping part 143 can position or fix the lead 21 of the coil 2 to prevent the lead 21 of the coil 2 from shaking. Before the lead 21 passes through the clamping part 143, part of the lead 21 can be wound on the first winding part 141, which is equivalent to pre-fixing the lead 21 and the first winding part 141, thereby enhancing the stability of the connection between the lead 21 and the metal terminal 1 and facilitating subsequent operations. After the lead wire 21 passes through the clamping portion 143, part of the lead wire 21 can also be wound on the second winding portion 142, which is equivalent to pre-fixing the lead wire 21 and the second winding portion 142 again, and also enhances the stability of the connection between the lead wire 21 and the metal terminal 1, and can prevent the lead wire 21 from falling off from the clamping portion 143 before welding the metal terminal 1, that is, it can prevent the lead wire 21 from falling off from the clamping portion 143 before welding the winding portion 14. The clamping portion 143 can be roughly U-shaped, and the number of the clamping portions 143 can be one or more. In this embodiment, the number of the clamping portions 143 is one, that is, each winding portion 14 is provided with a clamping portion 143. The lead wire 21 of the coil 2 is clamped in the clamping portion 143, and the lead wire 21 and the clamping portion 143 can be fixedly connected by welding, and the welding method can be resistance welding, hot melt welding, laser welding, etc.

[0036] Reference Figure 1 , Figure 4 The whole supporting platform 3 can be in a fan-shaped ring shape, that is, the whole supporting platform 3 can be a part of a ring shape. Of course, the supporting platform 3 can also be set to other shapes as needed. In this embodiment, the whole supporting platform 3 is in a fan-shaped ring shape. The first end 111 of the main body 11 of the metal terminal 1 is fixedly connected to the supporting platform 3. The supporting platform 3 has a supporting function for the metal terminal 1. The material of the supporting platform 3 is preferably plastic material, and of course it can also be other insulating materials.

[0037] Reference Figure 1 , Figure 4 At least one wiring groove 31 may be provided on the carrier 3. The wiring groove 31 extends along the insertion direction and is used for the lead wire 21 of the coil 2 to pass through. The wiring groove 31 can position or fix the lead wire 21 of the coil 2 to prevent the lead wire 21 of the coil 2 from shaking. The wiring groove 31 can be provided on the side wall of the carrier 3, and the number of the wiring grooves 31 corresponds to the number of the lead wires 21 of the coil 2. When there are multiple wiring grooves 31, multiple wiring grooves 31 are arranged at intervals, which can prevent the lead wires 21 of the coil 2 from being entangled with each other, and facilitate the distribution of the lead wires 21 of the coil 2.

[0038] The metal terminal 1 of the present application increases the working space of the winding equipment, i.e., the winding space of the winding equipment, by spacing the winding part 14 from the main body 11 and the mounting part 12 so that the winding part 14 is far away from the main body 11 and the mounting part 12. The winding equipment can not only more conveniently wind the lead 21 on the winding part 14, but also the winding equipment will not cause the main body 11 and the mounting part 12 to bend or deform, thereby improving production efficiency and product yield, and further reducing the production cost of the product. At the same time, when the lead 21 is welded to the winding part 14, since the main body 11 and the winding part 14 are spaced apart, the influence of welding on the main body 11 can be greatly reduced or the main body 11 will not be affected by welding, and the main body 11 will not be bent or deformed to cause the mounting part 12 to be skewed, thereby ensuring the accuracy of the position of the mounting part 12, and further ensuring that the mounting part 12 can be accurately inserted into the circuit board.

[0039] In a specific embodiment, referring to Figures 1 to 6 The metal terminals 1 are preferably arranged in pairs on the carrier 3. One or more pairs of metal terminals 1 may be arranged on the carrier 3. Each pair of metal terminals 1 may include two or more metal terminals 1. In the present embodiment, one of the pairs of metal terminals 1 may include a first metal terminal 15 and a second metal terminal 16. The first metal terminal 15 and the second metal terminal 16 are preferably arranged symmetrically. The spacing between the winding portion 14 of the first metal terminal 15 and the winding portion 14 of the second metal terminal 16 is greater than the spacing between the main body 11 of the first metal terminal 15 and the main body 11 of the second metal terminal 16. That is, when the winding portion 14 of the first metal terminal 15 deviates to the outside of the first metal terminal 15, the winding portion 14 of the second metal terminal 16 also deviates to the outside of the second metal terminal 16, so as to increase the distance between the winding portion 14 of the first metal terminal 15 and the winding portion 14 of the second metal terminal 16. In this way, mutual interference between the winding portion 14 of the first metal terminal 15 and the winding portion 14 of the second metal terminal 16 can be avoided, and the lead 21 can be more conveniently wound on the winding portion 14. In this embodiment, the number of metal terminals 1 is preferably the same as the number of leads 21 of the coil 2. For example, when the coil 2 has two leads 21, the number of metal terminals 1 is two. The first metal terminal 15 and the second metal terminal 16 are respectively connected to the two leads 21 of the coil 2, and the coil 2 is electrically connected to the circuit board through the metal terminals 1.

[0040] Reference Figure 2 , Figure 3, the connection part 13 can be bent and extended from the main body 11 to form an angle, and the bending and extending path of the connection part 13 matches the shape of the carrier 3, that is, the overall shape of the connection part 13 corresponds to the shape of the carrier 3, so that the winding part 14 is away from the main body 11, which can increase the interval between the winding part 14 and the main body 11 and the mounting part 12, thereby increasing the working space of the winding equipment, that is, the winding space of the winding equipment, and the winding equipment can more conveniently wind the lead 21 on the winding part 14. At the same time, it is preferred to control the connection part 13 and the winding part 14 within the projected area of ​​the carrier 3, that is, the connection part 13 and the winding part 14 do not exceed the outer edge of the carrier 3, which will not increase the volume of the solenoid valve coil assembly 100, which is conducive to the miniaturization of the solenoid valve coil assembly 100.

[0041] In some embodiments, reference Figure 5 , Figure 6 The connecting portion 13 is bent in the reverse direction from the main body 11 to extend into a U shape, so that the winding portion 14 is arranged opposite to the main body 11. That is, the connecting portion 13 first extends outward from one side of the main body 11, and then the lead 21 is wound on the winding portion 14, and then the connecting portion 13 is bent in the reverse direction by 180 degrees to form a U shape. When the lead 21 is wound on the winding portion 14, the winding portion 14 can exceed the projection area of ​​the carrier platform 3, that is, the winding portion 14 exceeds the outer edge of the carrier platform 3, so that the interval between the winding portion 14 and the main body 11 and the mounting portion 12 can be further increased, thereby increasing the working space of the winding equipment, that is, the winding space of the winding equipment. The winding equipment can more conveniently wind the lead 21 on the winding portion 14, and at the same time further increase the distance between the winding portion 14 of the first metal terminal 15 and the winding portion 14 of the second metal terminal 16 to avoid mutual interference between the winding portion 14 of the first metal terminal 15 and the winding portion 14 of the second metal terminal 16, so that the lead 21 can be more conveniently wound on the winding portion 14. After the connecting portion 13 is bent 180° in the opposite direction to form a U-shape, the size of the connecting portion 13 is reduced. It is preferred that the connecting portion 13 and the winding portion 14 are controlled within the projection area of ​​the supporting platform 3, that is, the connecting portion 13 and the winding portion 14 do not exceed the outer edge of the supporting platform 3. This will not increase the volume of the solenoid valve coil assembly 100, which is conducive to the miniaturization of the solenoid valve coil assembly 100.

[0042] In a specific embodiment, referring to Figures 1 to 6The mounting portion 12 has a first mounting portion 121 and a second mounting portion 122. The first mounting portion 121 and the second mounting portion 122 can be arranged in an L shape or an S shape, which can increase the elastic deformation force of the mounting portion 12. The second mounting portion 122 can be inserted into a conductive through hole on a circuit board (not shown) to achieve electrical connection between the metal terminal 1 and the circuit board. The second mounting portion 122 is provided with a mounting foot 1221 for mounting to the circuit board, and the mounting foot 1221 can be a needle-type structure or a fisheye-type structure. When the mounting foot 1221 is a needle-type structure, the mounting foot 1221 can be inserted into the conductive through hole of the circuit board, and then the mounting foot 1221 is fixed to the circuit board by welding and electrically connected. When the mounting foot 1221 is a fisheye-type structure, the mounting foot 1221 can be pressed into the conductive through hole of the circuit board, and there is a holding force between the mounting foot 1221 and the side wall of the conductive through hole, and welding is not required, that is, the mounting foot 1221 can be fixed to the circuit board and electrically connected.

[0043] The two ends of the first mounting portion 121 are connected to the second end 112 and the second mounting portion 122 of the main body 11, respectively. The first mounting portion 121 can be bent and extended, or it can be straightly extended. The mounting portion 12 of the first metal terminal 15 and the mounting portion 12 of the second metal terminal 16 both have a first mounting portion 121 and a second mounting portion 122. The first mounting portions 121 of the first and second metal terminals 15 and 16 can be offset inward relative to the corresponding second mounting portions 122, so that the distance between the second mounting portions 122 of the first and second metal terminals 15 and 16 is greater than the distance between the corresponding main bodies 11. That is, the first mounting portion 121 of the first metal terminal 15 can be relatively offset inward compared to the second mounting portion 122 of the first metal terminal 15, and the first mounting portion 121 of the second metal terminal 16 can be relatively offset inward compared to the second mounting portion 122 of the second metal terminal 16, so that the distance between the second mounting portion 122 of the first metal terminal 15 and the second mounting portion 122 of the second metal terminal 16 is greater than the distance between the main body 11 of the first metal terminal 15 and the main body 11 of the second metal terminal 16.

[0044] The first mounting portion 121 may include a first part 1211 and a second part 1212 . The first part 1211 is connected to the second end 112 of the body 11 , and the second part 1212 is connected to the second mounting portion 122 .

[0045] Specifically, refer to Figure 2 , Figure 3When the first mounting portion 121 is bent and extended, and the first portions 1211 of the two metal terminals 1 are arranged parallel to each other, the second portions 1212 of the two metal terminals 1 can be offset and extended to the outside of the metal terminal 1. When the first mounting portion 121 is bent and extended, and the first portions 1211 of the two metal terminals 1 are offset and extended to the outside of the metal terminal 1, the second portions 1212 of the two metal terminals 1 can be offset and extended to the outside of the metal terminal 1, and the offset degree of the first portion 1211 is different from the offset degree of the second portion 1212.

[0046] That is to say, when the first mounting portion 121 is bent and extended, the spacing distance between the second mounting portions 122 of the two metal terminals 1 is larger than the spacing distance between the main bodies 11 of the two metal terminals 1. This not only ensures that the second mounting portions 122 of the two metal terminals 1 can be accurately inserted into the circuit board, but also shortens the spacing distance between the first mounting portions 121 of the two metal terminals 1, that is, shortens the spacing distance between the main bodies 11 of the two metal terminals 1. This increases the size of the connecting portion 13 without increasing the volume of the solenoid valve coil assembly 100, so that the winding portion 14 is further away from the main body 11 and the mounting portion 12, further increasing the working space of the winding equipment, that is, the winding space of the winding equipment, and the lead 21 is more conveniently wound on the winding portion 14, thereby improving production efficiency and product yield, and thereby reducing the production cost of the product.

[0047] When the first mounting portion 121 is extended in a straight line, the first portions 1211 of the two metal terminals 1 can be offset and extended to the outside of the metal terminal 1, and the second portions 1212 of the two metal terminals 1 can be offset and extended to the outside of the metal terminal 1. The offset degree of the first portion 1211 is the same as the offset degree of the second portion 1212, that is, the first portion 1211 and the second portion 1212 of the same metal terminal 1 are on the same straight line, and the first mounting portions 121 of the two metal terminals 1 are roughly trumpet-shaped. In this way, the spacing distance between the second mounting parts 122 of the two metal terminals 1 is larger than the spacing distance between the main bodies 11 of the two metal terminals 1. This not only ensures that the second mounting parts 122 of the two metal terminals 1 can be accurately inserted into the circuit board, but also shortens the spacing distance between the first mounting parts 121 of the two metal terminals 1, that is, shortens the spacing distance between the main bodies 11 of the two metal terminals 1, thereby increasing the size of the connecting part 13 without increasing the volume of the solenoid valve coil assembly 100, so that the winding part 14 is further away from the main body 11 and the mounting part 12, further increasing the working space of the winding equipment, that is, the winding space of the winding equipment, and the lead 21 is more conveniently wound on the winding part 14, thereby improving production efficiency and product yield, and thereby reducing the production cost of the product.

[0048] Reference Figure 5 , Figure 6 , when the first mounting portion 121 is arranged to extend in a straight line, the first portions 1211 of the two metal terminals 1 are arranged parallel to each other, and the second mounting portions 122 of the two metal terminals 1 are also arranged parallel to each other, that is, the first portion 1211 and the second portion 1212 of the same metal terminal 1 are on the same straight line, and the first mounting portions 121 of the two metal terminals 1 are arranged parallel to each other. In other words, the spacing distance between the second mounting portions 122 of the two metal terminals 1 is the same or substantially the same as the spacing distance between the main bodies 11 of the two metal terminals 1. In other words, the first mounting portion 121 of the first metal terminal 15 is arranged parallel to the first mounting portion 121 of the second metal terminal 16, so that the distance between the second mounting portions 122 of the first and second metal terminals 15 and 16 is equal to or substantially equal to the distance between the corresponding main bodies 11, that is, the distance between the second mounting portion 122 of the first metal terminal 15 and the second mounting portion 122 of the second metal terminal 16 is equal to or substantially equal to the distance between the main bodies 11 of the first metal terminal 15 and the main bodies 11 of the second metal terminal 16. This simplifies the structure of the mounting portion 12, facilitates the molding of the mounting portion 12, thereby improving production efficiency and product yield, and further reducing the production cost of the product. In this embodiment, the connecting portion 13 preferably first extends outward from one side of the main body 11, then the lead 21 is wound on the winding portion 14, and then the connecting portion 13 is bent 180° in the opposite direction to form a U shape, so that the space occupied by the connecting portion 13 on the main body 11 and the corresponding first portion 1211 can be reduced, so as not to reduce the interval between the main body 11 and the first portion 1211 of the two metal terminals 1, and at the same time, the winding space of the winding equipment is ensured, so as not to affect the winding of the lead 21 to the winding portion 14.

[0049] As a preferred method, refer to Figure 3 , Figure 6 The wire clamping portion 143 is located above the first part 1211 along the insertion direction, that is, the wire clamping portion 143 is located above the end of the first mounting portion 121 close to the main body portion 11. In this way, when the lead 21 passes through the mounting portion 12 or the lead 21 is welded to the wire clamping portion 143, the first part 1211 can be prevented from interfering with the equipment, which is more convenient for production. At the same time, it also avoids the position deviation caused by the interference between the first part 1211 and the equipment.

[0050] In a specific embodiment, referring to Figure 1 , Figure 4 The solenoid valve coil assembly 100 may further include a clamping member 4, the material of the clamping member 4 is preferably metal. When the solenoid valve coil assembly 100 is inserted into the housing 200, the clamping member 4 is clamped and cooperated with the housing 200 to limit the movement of the solenoid valve coil assembly 100 in the insertion direction.

[0051] Specifically, the clip 4 extends integrally from one side of the corresponding main body 11 and protrudes from the supporting platform 3. In this way, the clip 4 extends from one side of the main body 11, making full use of the side space of the main body 11 and does not increase the overall height of the metal terminal 1, which is conducive to the miniaturization of the entire solenoid valve coil assembly 100.

[0052] Reference Figure 1 , Figure 4 The clip 4 can be arranged on the metal terminal 1, and the clip 4 can be arranged near the first end 111 of the main body 11. The clip 4 and the metal terminal 1 are preferably integrally formed, that is, the clip 4 is integrally arranged on the metal terminal 1 to form a whole. This not only improves the bonding force between the clip 4 and the metal terminal 1, but also facilitates the production of the clip 4 and the metal terminal 1, thereby improving production efficiency.

[0053] The clamping member 4 may also be disposed on the supporting platform 3 , and the clamping member 4 and the metal terminal 1 may be separated. One end of the clamping member 4 is preferably embedded in the supporting platform 3 to improve the stability of the position of the clamping member 4 .

[0054] The number of the clamping parts 4 can be one or more. When the solenoid valve coil assembly 100 is inserted into the housing 200, the clamping parts 4 and the housing 200 are clamped and matched to limit the movement of the solenoid valve coil assembly 100 in the insertion direction. The housing 200 is usually made of plastic. By using a metal clamping part 4, compared with the plastic-to-plastic fixed matching structure between the carrier 3 and the housing 200, the holding force between the metal clamping part 4 and the plastic housing 200 is greater, so that the fixing between the clamping part 4 and the housing 200 is more stable, thereby improving the fixing effect between the solenoid valve coil assembly 100 and the housing 200, preventing the solenoid valve coil assembly 100 from falling off from the housing 200 during transportation or assembly, and reducing or avoiding the shaking between the solenoid valve coil assembly 100 and the housing 200, thereby reducing the wear between the solenoid valve coil assembly 100 and the housing 200, and further improving the service life of the solenoid valve coil assembly 100 and the housing 200.

[0055] Since the hardness of the metal clip 4 is greater than that of the plastic shell 200, the clip 4 and the shell 200 can be interference fit. When the solenoid valve coil assembly 100 is inserted into the shell 200, the clamping between the clip 4 and the shell 200 is tighter and more stable. Even the end of the clip 4 facing the shell 200 can be inserted into and pierce the shell 200, further improving the stability between the clip 4 and the shell 200 and preventing the solenoid valve coil assembly 100 from falling off the shell 200 during transportation or assembly.

[0056] Reference Figure 1 , Figure 4, the end of the clip 4 facing the housing 200 may also be provided with a first barb 41, and the first barbs 41 of the two clips 4 extend from both sides of the support platform 3 toward the housing 200. The number of the first barbs 41 on each clip 4 is one or more, and when the number of the first barbs 41 is multiple, the multiple first barbs 41 can increase the stability of the clip connection between the clip 4 and the housing 200. In the insertion direction, the width of the multiple first barbs 41 gradually decreases, and the inclination direction of the first barbs 41 is opposite to the insertion direction, that is, the first barbs 41 are inclined toward the first end 111 of the main body 11, which not only facilitates the assembly of the first barbs 41 into the housing 200, but also further improves the fixing reliability after the assembly is completed.

[0057] The mounting portion 12 of the metal terminal 1 may also be provided with a fixing foot 123. When the solenoid valve coil assembly 100 is inserted into the housing 200, the fixing foot 123 is engaged with the housing 200 to limit the movement of the solenoid valve coil assembly 100 in the insertion direction. The fixing foot 123 may be provided on the first mounting portion 121, or the fixing foot 123 may be provided on the second mounting portion 122.

[0058] The end of the fixing foot 123 facing the housing 200 may also be provided with a second barb (not shown), and the second barbs of the two fixing feet 123 extend from both sides of the support platform 3 toward the housing 200. The number of the second barbs on each fixing foot 123 is one or more. When the number of the second barbs is multiple, the multiple second barbs can increase the stability of the clamping between the fixing foot 123 and the housing 200. In the insertion direction, the width of the multiple second barbs gradually decreases, and the inclination direction of the second barbs is opposite to the insertion direction, that is, the second barbs are inclined toward the first end 111 of the main body 11, which not only facilitates the assembly of the second barbs into the housing 200, but also further improves the fixing reliability after the assembly is completed.

[0059] Reference Figure 1 , Figure 4 The solenoid valve coil assembly 100 may further include a coil carrier 5 and an outer cover 6. The coil 2 is disposed on the outer circumference of the coil carrier 5. The coil carrier 5 supports the coil 2 to prevent the coil 2 from being deformed. The outer cover 6 is disposed on the periphery of the coil 2 and the coil carrier 5. The outer cover 6 can protect the coil 2, isolate the coil 2 from the outside, and prevent the coil 2 from being damaged by external forces. One end of the carrier 3 is disposed on the coil carrier 5, and the other end of the carrier 3 protrudes from the outer cover 6, so that part of the carrier 3 can be mutually clamped with the housing 200 to prevent the carrier 3 from falling off from the housing 200 during transportation or assembly. In some embodiments, the carrier 3 and the coil carrier 5 may be integrally formed.

[0060] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the utility model. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the utility model.

Claims

1. A metal terminal for a solenoid valve coil assembly, which can be used to connect a coil, characterized in that: The metal terminal includes: a main body, a mounting portion, a connecting portion and a winding portion, the main body having a first end and a second end opposite to each other, the mounting portion is arranged at the second end of the main body, the connecting portion has a third end and a fourth end opposite to each other, the third end of the connecting portion is connected to one side of the main body, and the fourth end of the connecting portion is connected to the winding portion, so that the winding portion and the mounting portion are separated relative to the main body, and the winding portion is used to wind and fix the lead of the coil.

2. The metal terminal for the solenoid valve coil assembly according to claim 1, characterized in that: The connecting portion is bent and extended from the main body to form an angle, so that the winding portion is away from the main body; or The connecting portion is bent in the reverse direction from the main body portion and extends into a U shape, so that the winding portion is arranged at the back of the main body portion.

3. The metal terminal for the solenoid valve coil assembly according to claim 1, characterized in that: The wire winding portion includes a first wire winding portion, a second wire winding portion, and a wire clamping portion located between the first wire winding portion and the second wire winding portion, wherein the wire clamping portion is used to clamp the lead wire.

4. The metal terminal for the solenoid valve coil assembly according to claim 3, characterized in that: The mounting portion comprises a first mounting portion and a second mounting portion, wherein the first mounting portion is bent and extended; or The first mounting portion is extended in a straight line.

5. The metal terminal for the solenoid valve coil assembly according to claim 4, characterized in that: The first mounting portion includes a first part and a second part, the first part is connected to the second end of the main body, the second part is connected to the second mounting portion, and the wire clamping portion is located above the first part; and / or, The second mounting portion is provided with a mounting foot for mounting to a circuit board, wherein the mounting foot is a needle-type structure for inserting and soldering into a through hole of the circuit board, or the mounting foot is a fisheye-type structure for pressing into the through hole of the circuit board.

6. A solenoid valve coil assembly, characterized in that: It comprises the metal terminal, coil and carrier platform as described in any one of claims 1 to 5, wherein the first end of the metal terminal main body is fixedly connected to the carrier platform, and the lead wire of the coil is fixedly connected to the winding part by welding.

7. The solenoid valve coil assembly according to claim 6, characterized in that: The metal terminals are arranged in pairs on the carrier platform, wherein the pair of metal terminals includes a first metal terminal and a second metal terminal, the first metal terminal and the second metal terminal are arranged symmetrically, and the distance between the winding portion of the first metal terminal and the winding portion of the second metal terminal is greater than the distance between the main body of the first metal terminal and the main body of the second metal terminal; and / or, At least one wiring groove is arranged on the supporting platform, and the wiring groove is extended along the insertion direction and is used for the lead wire of the coil to pass through.

8. The solenoid valve coil assembly according to claim 6, characterized in that: It also includes a clamping piece, which is arranged on the metal terminal and / or the supporting platform, and the material of the clamping piece is metal. When the solenoid valve coil assembly is inserted into the housing, the clamping piece is engaged with the housing to limit the movement of the solenoid valve coil assembly in the insertion direction; and / or, The mounting portion of the metal terminal is provided with a fixing foot. When the solenoid valve coil assembly is inserted into the housing, the fixing foot is engaged with the housing to limit the movement of the solenoid valve coil assembly in the insertion direction.

9. The solenoid valve coil assembly according to claim 7, characterized in that: The mounting portion of the first metal terminal and the mounting portion of the second metal terminal both have a first mounting portion and a second mounting portion, the two ends of the first mounting portion are respectively connected to the second end of the main body and the second mounting portion, and the first mounting portions of the first and second metal terminals are offset inwardly relative to the corresponding second mounting portions so that the distance between the second mounting portions of the first and second metal terminals is greater than the distance between the corresponding main bodies.

10. The solenoid valve coil assembly according to claim 6, characterized in that: It also includes a coil carrier and an outer cover, wherein the coil is arranged on the outer circumference of the coil carrier, the outer cover is arranged on the periphery of the coil and the coil carrier, one end of the carrier is arranged on the coil carrier, and the other end of the carrier protrudes from the outer cover.

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