Electromagnetic valve coil assembly and shell assembly

Abstract

The utility model discloses an electromagnetic valve coil assembly and a shell assembly. The electromagnetic valve coil assembly comprises a bearing table, a metal terminal, a coil and a clamping piece. The metal terminal is provided with a first end and a second end which are opposite, the first end of the metal terminal is connected with the bearing table, the second end of the metal terminal protrudes out of the bearing table, and a lead of the coil is electrically connected with the metal terminal. The clamping piece is arranged on the metal terminal and / or the bearing table, the clamping piece is made of metal materials, and when the electromagnetic valve coil assembly is inserted into the shell, the clamping piece is matched with the shell in a clamping mode so as to limit movement of the electromagnetic valve coil assembly in the insertion direction. According to the electromagnetic valve coil assembly, the clamping piece made of the metal material is adopted, and the retention force between the clamping piece made of the metal material and the shell made of the plastic material is larger, so that fixation between the clamping piece and the shell is more stable, the fixing effect between the electromagnetic valve coil assembly and the shell can be improved, and the electromagnetic valve coil assembly is prevented from falling off from the shell in the transportation or assembly process.

Description

Technical Field

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

[0002] Automobile anti-lock braking system (ABS system) or automobile electronic stability control system (ESC system) all use high-speed switching solenoid valves to adjust the brake pressure. Solenoid valves are usually installed on hydraulic adjustment units to adjust the pressure of the brake system. The solenoid valve coil assembly that drives the solenoid valve is usually assembled with the housing.

[0003] In the prior art, Chinese patent CN115768011A discloses an ABS ECU module, which discloses that a plastic housing is provided with an assembly groove, a coil assembly is assembled in the assembly groove, and a clamping protrusion is provided in the assembly groove to clamp the outer plastic main body of the coil assembly, and the plastic main body of the coil assembly and the housing are clamped and fixed by the clamping protrusion. Although the clamping protrusion prevents the coil assembly and the housing from twisting relative to each other to a certain extent, the plastic main body of the coil assembly is made of plastic material, and the housing is also made of plastic material, so the coil assembly and the housing are a fixed matching structure between plastics, and the coil assembly is easy to fall off from the housing during transportation or assembly.

[0004] Therefore, the existing solenoid valve coil assembly needs to be improved. Summary of the invention

[0005] The purpose of the utility model is to provide a solenoid valve coil assembly and a shell assembly, which can improve the fixing effect between the solenoid valve coil assembly and the shell, prevent the solenoid valve coil assembly from falling off the shell during transportation or assembly, thereby reducing the wear between the solenoid valve coil assembly and the shell, and further increasing the service life of the solenoid valve coil assembly and the shell.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] A solenoid valve coil assembly, comprising:

[0008] Loading platform;

[0009] A metal terminal, wherein the metal terminal has a first end and a second end opposite to each other, the first end of the metal terminal is connected to the carrier platform, and the second end of the metal terminal protrudes from the carrier platform;

[0010] a coil, wherein a lead of the coil is electrically connected to the metal terminal;

[0011] A clamping piece, wherein the clamping piece 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 shell, the clamping piece is clamped and cooperated with the shell to limit the movement of the solenoid valve coil assembly in the insertion direction.

[0012] Preferably, at least a portion of the clamping member is embedded in the supporting platform, and the clamping member extends from the metal terminal toward the housing and protrudes from the supporting platform.

[0013] Preferably, the clamping member is integrally provided on the metal terminal; in the insertion direction, a wire clamping piece is provided on the metal terminal protruding from the supporting platform, and a wire clamping groove for fixing the lead wire is formed between the wire clamping piece and the metal terminal.

[0014] Preferably, in the insertion direction, the clamping member and the supporting platform are spaced apart from each other, and the clamping member extends from the metal terminal toward the housing.

[0015] Preferably, the clamping member is integrally provided on the metal terminal, the metal terminal forms a neck between the clamping member and the supporting platform, and the lead is electrically connected to the metal terminal through the neck.

[0016] Preferably, the metal terminal includes a main body portion arranged at the first end, at least a portion of the main body portion is embedded or assembled in the carrier platform, the clamping member integrally extends from a side corresponding to the main body portion and protrudes from the carrier platform, or the clamping member and the main body portion are spaced apart in the insertion direction;

[0017] The second end of the metal terminal is provided with a mounting foot for mounting to a circuit board, wherein the mounting foot is a needle-type structure for inserting and welding 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.

[0018] Preferably, at least one wiring groove is provided 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.

[0019] Preferably, a barb is provided at one end of the clamping member facing the shell, and the number of the barb is one or more. When the number of the barb is plural, the widths of the barbs gradually decrease in the insertion direction.

[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] A housing assembly, characterized in that it comprises a solenoid valve coil assembly as described in any one of the above items and a housing, wherein the clamping member is clamped and cooperated with the housing.

[0022] Preferably, the shell is provided with a through first opening, and the clamping member is clamped in the first opening.

[0023] Preferably, the side wall of the first opening is provided with a first slot, and the clamping member is clamped in the first slot; and / or,

[0024] The side wall of the first opening is provided with a first clamping protrusion, and the first clamping protrusion is fixedly matched with the bearing platform; and / or,

[0025] A first clamping protrusion is formed on the outer periphery of the supporting platform, and the first clamping protrusion is fixedly matched with the first opening.

[0026] Preferably, the shell is provided with a groove and a second opening connected to the groove, part of the support platform is arranged in the groove, the groove is provided with a bottom wall covering the support platform, the second opening penetrates the bottom wall along the insertion direction, and the clamp is clamped in the second opening.

[0027] Preferably, the side wall of the second opening is provided with a second slot, and the clamping member is clamped in the second slot; and / or,

[0028] The side wall of the groove is provided with a second convex portion, and the second convex portion is fixedly matched with the bearing platform; and / or,

[0029] A second clamping protrusion is formed on the outer periphery of the supporting platform, and the second clamping protrusion is fixedly matched with the groove.

[0030] Compared with the prior art, the beneficial effects of the present invention include at least:

[0031] The solenoid valve coil assembly and shell assembly of the utility model adopts a metal clip. Compared with the plastic fixed matching structure between the support platform and the shell, the holding force between the metal clip and the plastic shell is greater, making the fixation between the clip and the shell more stable, thereby improving the fixing effect between the solenoid valve coil assembly and the shell, preventing the solenoid valve coil assembly from falling off the shell during transportation or assembly, thereby reducing the wear between the solenoid valve coil assembly and the shell, and further increasing the service life of the solenoid valve coil assembly and the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural schematic diagram of a solenoid valve coil assembly according to an embodiment of the utility model.

[0033] Figure 2It is a three-dimensional structural schematic diagram of a solenoid valve coil assembly according to another embodiment of the utility model.

[0034] Figure 3 It is a three-dimensional structural schematic diagram of a housing assembly according to an embodiment of the utility model.

[0035] Figure 4 It is a three-dimensional structural schematic diagram of a housing assembly according to another embodiment of the utility model.

[0036] Figure 5 It is a schematic diagram of the planar structure of a housing assembly according to an embodiment of the utility model.

[0037] Figure 6 yes Figure 5 Schematic diagram of the cross section along the AA direction.

[0038] Figure 7 It is a schematic diagram of the planar structure of a housing assembly according to another embodiment of the utility model.

[0039] Figure 8 yes Figure 7 Schematic diagram of the cross section along direction BB.

[0040] Fig. 9 It is a three-dimensional structural schematic diagram of a shell in an embodiment of the utility model.

[0041] Fig.10 yes Fig. 9 A local enlarged schematic diagram of point A in the middle.

[0042] Fig.11 It is a three-dimensional structural schematic diagram of a shell in another embodiment of the utility model.

[0043] Fig.12 yes Fig.11 A local enlarged schematic diagram of point B in the middle.

[0044] In the figure: 100, solenoid valve coil assembly; 1, support platform; 11, wiring groove; 2, metal terminal; 21, first end; 22, second end; 221, mounting foot; 23, wire clamping piece; 24, wire clamping groove; 25, neck; 26, main body; 27, extension; 3, coil; 31, lead; 4, snap-in; 41, barb; 5, coil carrier; 51, first limiting portion; 52, second limiting portion; 6, outer cover; 200, shell assembly; 210, shell; 211, first opening; 2111, first slot; 2112, first protrusion; 212, groove; 2121, second protrusion; 2122, bottom wall; 213, second opening; 2131, second slot. DETAILED DESCRIPTION

[0045] 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.

[0046] The words expressing positions and directions described in the present utility model are all explained by taking the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of the present utility model.

[0047] Reference Figures 1 to 12 The utility model provides a solenoid valve coil assembly 100 and a housing assembly 200. The solenoid valve coil assembly 100 includes a carrier 1, a metal terminal 2, a coil 3 and a clamping member 4. The metal terminal 2 is arranged on the carrier 1 by being integrally embedded or assembled. The lead 31 of the coil 3 is electrically connected to the metal terminal 2. The clamping member 4 can be arranged on the carrier 1, and the clamping member 4 can also be arranged on the metal terminal 2. The housing assembly 200 can include the solenoid valve coil assembly 100 and a housing 210. The clamping member 4 of the solenoid valve coil assembly 100 is clamped and matched with the housing 210.

[0048] Specifically, refer to Figure 1 , Figure 2 , Figure 6 , Figure 8 The carrier 1 supports the metal terminal 2. The material of the carrier 1 is preferably plastic material, but it can also be other insulating materials. At least one wiring groove 11 can be provided on the carrier 1. The wiring groove 11 extends along the insertion direction and is used for the lead wire 31 of the coil 3 to pass through. The wiring groove 11 can position or fix the lead wire 31 of the coil 3 to prevent the lead wire 31 of the coil 3 from shaking. The wiring groove 11 can be provided on the side wall of the carrier 1, and the number of the wiring grooves 11 corresponds to the number of the lead wires 31 of the coil 3. When there are multiple wiring grooves 11, the multiple wiring grooves 11 are arranged at intervals to prevent short circuits between the leads 31 of the coil 3.

[0049] Reference Figure 6 , Figure 8The metal terminal 2 has a first end 21 and a second end 22 relative to each other. The first end 21 of the metal terminal 2 is connected to the carrier 1, and the second end 22 of the metal terminal 2 protrudes from the carrier 1. The first end 21 of the metal terminal 2 can be embedded in or installed in the carrier 1. In the present embodiment, the first end 21 of the metal terminal 2 is embedded in the carrier 1, that is, part of the metal terminal 2 is buried in the carrier 1, so that the bonding force between the metal terminal 2 and the carrier 1 can be improved, and the metal terminal 2 can be prevented from falling off. The second end 22 of the metal terminal 2 serves as a free end, and the second end 22 of the metal terminal 2 can be inserted into a through hole on a circuit board (not shown) to realize electrical connection between the metal terminal 2 and the circuit board. The number of the metal terminals 2 can be one or more. In the present embodiment, the number of the metal terminals 2 is two.

[0050] As a preferred method, refer to Figure 1 , Figure 2 , Figure 6 , Figure 8 The second end 22 of the metal terminal 2 may be provided with a mounting foot 221, and the mounting foot 221 may be a needle-type structure or a fisheye-type structure. When the mounting foot 221 is a needle-type structure, the mounting foot 221 may be inserted into a through hole of a circuit board, and then the mounting foot 221 may be fixed to the circuit board by welding to achieve electrical connection. When the mounting foot 221 is a fisheye-type structure, the mounting foot 221 may be pressed into the through hole of the circuit board, and there is a holding force between the mounting foot 221 and the side wall of the through hole, and welding is not required, that is, the mounting foot 221 may be fixed to the circuit board and achieve electrical connection.

[0051] Reference Figure 6 , Figure 8 The metal terminal 2 may include a main body 26 disposed at the first end 21 and an extension 27 located between the main body 26 and the mounting foot 221, and at least a portion of the main body 26 is embedded or assembled in the carrier 1. Figure 6 , the clamping member 4 extends from one side of the corresponding main body portion 26 and protrudes from the support platform 1, or, referring to Figure 8 The clamping member 4 is spaced apart from the main body 26 in the insertion direction. The width of the main body 26 is greater than the width of the extension 27. The main body 26 can improve the structural strength of the metal terminal 2, and the extension 27 can reduce the weight of the metal terminal 2, which also facilitates the insertion of the metal terminal 2 into the through hole of the circuit board.

[0052] The lead wire 31 of the coil 3 is electrically connected to the metal terminal 2. The number of the coil 3 can be one or more. In the present embodiment, the number of the coil 3 is one, and each coil 3 has two lead wires 31, which are electrically connected to two metal terminals 2 respectively. When the coil 3 is energized, a magnetic field is generated between the coil 3 and the iron core of the valve, and the generated magnetic field attracts the iron core of the valve to close the valve. Conversely, when the coil 3 is de-energized, the magnetic field disappears, and the iron core of the valve is no longer attracted and opens. Therefore, changing the magnitude and direction of the current can change the magnetic field generated by the coil 3, thereby controlling the action of the valve.

[0053] The clip 4 can be arranged on the metal terminal 2, and the clip 4 and the metal terminal 2 are preferably integrally formed, that is, the clip 4 is integrally arranged on the metal terminal 2 to form a whole. This not only improves the bonding force between the clip 4 and the metal terminal 2, but also facilitates the production of the clip 4 and the metal terminal 2, thereby improving production efficiency.

[0054] The clamping member 4 may also be disposed on the supporting platform 1 , and the clamping member 4 and the metal terminal 2 may be separated. One end of the clamping member 4 is preferably embedded in the supporting platform 1 to improve the stability of the position of the clamping member 4 .

[0055] like Figure 6 As shown in , the clip 4 extends from one side of the corresponding main body 26 and protrudes from the support platform 1. In this way, the clip 4 extends from one side of the main body 26, making full use of the side space of the main body 26, and does not increase the overall height of the metal terminal 2, which is conducive to the miniaturization of the entire solenoid valve coil assembly 100. Or, as Figure 8 As shown in FIG. 1 , in this embodiment, the clamping member 4 is integrally provided with the metal terminal 2 and is spaced apart from the main body 26 in the insertion direction. Figure 6 Compared with the embodiment shown in , the overall height of the metal terminal 2 is increased in this embodiment. In order to ensure the miniaturization of the entire solenoid valve coil assembly 100, the height of the carrier platform 1 along the insertion direction needs to be reduced.

[0056] Reference Figure 6 , Figure 8, the number of the clamping parts 4 can be one or more, and the material of the clamping parts 4 is preferably metal. When the solenoid valve coil assembly 100 is inserted into the housing 210, the clamping parts 4 and the housing 210 are clamped and matched to limit the movement of the solenoid valve coil assembly 100 in the insertion direction. The housing 210 is usually made of plastic. By using the clamping parts 4 made of metal, compared with the plastic-to-plastic fixed matching structure between the carrier 1 and the housing 210, the holding force between the clamping parts 4 made of metal and the housing 210 made of plastic is greater, so that the fixing between the clamping parts 4 and the housing 210 is more stable, thereby improving the fixing effect between the solenoid valve coil assembly 100 and the housing 210, preventing the solenoid valve coil assembly 100 from falling off from the housing 210 during transportation or assembly, and reducing or avoiding the shaking between the solenoid valve coil assembly 100 and the housing 210, thereby reducing the wear between the solenoid valve coil assembly 100 and the housing 210, and further improving the service life of the solenoid valve coil assembly 100 and the housing 210.

[0057] Since the hardness of the metal clip 4 is greater than that of the plastic shell 210, the clip 4 and the shell 210 can be interference fit. When the solenoid valve coil assembly 100 is inserted into the shell 210, the clamping between the clip 4 and the shell 210 is tighter and more stable. Even the end of the clip 4 facing the shell 210 can be inserted into and pierce the shell 210, further improving the stability between the clip 4 and the shell 210 and preventing the solenoid valve coil assembly 100 from falling off the shell 210 during transportation or assembly.

[0058] As an example, the insertion direction is the positive direction of the Z axis, that is, the insertion direction is the vertical upward direction, and the direction perpendicular to the insertion direction is the horizontal direction. The horizontal direction includes the X axis direction and the Y axis direction, that is, the left and right front and back directions.

[0059] In a specific embodiment, referring to Figure 6 , at least part of the clamping member 4 is embedded in the carrier 1, and the clamping member 4 extends from the metal terminal 2 toward the shell 210 and protrudes from the carrier 1. In other words, the clamping member 4 can be exposed from the peripheral side of the carrier 1, and the clamping member 4 can also be exposed from the top or bottom of the carrier 1. In this embodiment, the peripheral side of the carrier 1 faces the shell 210, and the clamping member 4 is exposed from the peripheral side of the carrier 1, so that the clamping member 4 and the shell 210 can be clamped and matched. The clamping member 4 is embedded in the carrier 1, which can enhance the structural strength of the clamping member 4 and prevent the clamping member 4 from being deformed, thereby ensuring that the clamping between the clamping member 4 and the shell 210 is more stable, thereby preventing the solenoid valve coil assembly 100 from falling off from the shell 210 during transportation or assembly.

[0060] Specifically, refer to Fig. 9 , Fig.10The housing 210 may be provided with a first opening 211 that passes through, and the clamping member 4 may be clamped in the first opening 211. The shape of the first opening 211 matches the shape of the carrier 1, at least part of the carrier 1 is disposed in the first opening 211 and abuts against the side wall of the first opening 211, and the clamping member 4 is clamped to the side wall of the first opening 211, that is, the carrier 1 and the clamping member 4 are clamped to the housing 210 at the same time, so that the stability of the connection between the solenoid valve coil assembly 100 and the housing 210 can be improved.

[0061] Reference Fig.10 The side wall of the first opening 211 may be provided with a first card slot 2111, the position and number of the first card slot 2111 correspond to the snap-in component 4, and the snap-in component 4 is snap-connected in the first card slot 2111, thereby further limiting the movement of the solenoid valve coil assembly 100 in the insertion direction, thereby preventing the solenoid valve coil assembly 100 from falling off the housing 210 during transportation or assembly.

[0062] Reference Figure 6 , a barb 41 may also be provided at one end of the clamping member 4 facing the housing 210, and the barbs 41 of the two clamping members 4 extend from both sides of the support platform 1 toward the housing 210, respectively, and the barbs 41 may be clamped in the first clamping groove 2111. The number of barbs 41 on each clamping member 4 is one or more, and when the number of barbs 41 is multiple, multiple barbs 41 may increase the stability of the clamping between the clamping member 4 and the housing 210. In the insertion direction, the width of the multiple barbs 41 gradually decreases, and the inclination direction of the barbs 41 is opposite to the insertion direction, that is, the barbs 41 are inclined toward the first end 21 of the metal terminal 2, which not only facilitates the assembly of the barbs 41 into the housing 210, but also further improves the fixing reliability after the assembly is completed.

[0063] Reference Fig.10, the side wall of the first opening 211 may also be provided with a first clamping protrusion 2112, and the first clamping protrusion 2112 is fixedly matched with the carrier 1. The number of the first clamping protrusions 2112 may be one or more. In the present embodiment, the number of the first clamping protrusions 2112 is multiple, for example, four. The four first clamping protrusions 2112 are evenly distributed on the two opposite side walls of the first opening 211, which is equivalent to the first clamping protrusions 2112 clamping the carrier 1, that is, increasing the clamping force between the carrier 1 and the housing 210, further improving the stability between the carrier 1 and the housing 210, and increasing the fixing effect between the solenoid valve coil assembly 100 and the housing 210, thereby preventing the solenoid valve coil assembly 100 from falling off from the housing 210 during transportation or assembly. In other embodiments, the first clamping protrusions 2112 may also be formed on the outer periphery of the carrier 1, and the first clamping protrusions 2112 are fixedly matched with the first opening 211, which can also achieve the technical effect of increasing the clamping force between the carrier 1 and the housing 210 and further improving the stability between the carrier 1 and the housing 210. Reference Fig.10 , the clamping member 4 is integrally arranged on the metal terminal 2. In the insertion direction, a clamping piece 23 can be arranged on the metal terminal 2 protruding from the carrier 1, that is, a clamping piece 23 can be arranged on the metal terminal 2 above the carrier 1. A clamping groove 24 for fixing the lead 31 is formed between the clamping piece 23 and the metal terminal 2. The clamping groove 24 can position or fix the lead 31 of the coil 3 to prevent the lead 31 of the coil 3 from shaking. The clamping piece 23, the lead 31 and the metal terminal 2 can also be fixed together by welding to further improve the stability of the connection between the clamping piece 23, the lead 31 and the metal terminal 2. The welding method can be resistance welding or soldering. The clamping piece 23 can be formed by bending after extending outward from the metal terminal 2. The clamping piece 23 is preferably integrally formed with the metal terminal 2, or the clamping piece 23 can be a part of the metal terminal 2. This can not only improve the bonding force between the clamping piece 23 and the metal terminal 2, but also facilitate the production of the clamping piece 23 and the metal terminal 2, thereby improving the production efficiency.

[0064] In another embodiment, reference Figure 8In the insertion direction, the clamping member 4 is spaced apart from the carrier platform 1, that is, the clamping member 4 is arranged above the carrier platform 1, and the clamping member 4 extends from the metal terminal 2 toward the housing 210. One end of the clamping member 4 facing the housing 210 may protrude from the carrier platform 1, that is, in the horizontal direction, the end of the clamping member 4 facing the housing 210 is closer to the end of the housing 210. One end of the clamping member 4 facing the housing 210 may also be recessed in the carrier platform 1, that is, in the horizontal direction, the side of the carrier platform 1 facing the housing 210 is closer to the end of the housing 210. In this embodiment, one end of the clamping member 4 facing the housing 210 is recessed in the carrier platform 1, which can reduce the length of the clamping member 4, thereby improving the structural strength of the clamping member 4, avoiding deformation of the clamping member 4, and ensuring stability between the clamping member 4 and the housing 210.

[0065] Specifically, refer to Fig.11 , Fig.12 , Fig.11 and Fig.12 The angle shown is observed upward from the bottom of the housing 210. The housing 210 may be provided with a groove 212 and a second opening 213 connected to the groove 212. In the insertion direction, the second opening 213 is provided above the groove 212. Part of the carrier 1 is provided in the groove 212. The groove 212 is provided with a bottom wall 2122 that covers the carrier 1. The second opening 213 penetrates the bottom wall 2122 along the insertion direction, and the clamping member 4 is clamped in the second opening 213. The shape of the groove 212 matches the shape of the carrier 1. At least part of the carrier 1 is provided in the groove 212 and abuts against the side wall of the groove 212. The clamping member 4 is clamped in the side wall of the second opening 213. In other words, the carrier 1 and the clamping member 4 are clamped with the housing 210 at the same time, so that the stability of the connection between the solenoid valve coil assembly 100 and the housing 210 can be improved.

[0066] Reference Fig.12 The side wall of the second opening 213 may be provided with a second slot 2131, the position and number of the second slot 2131 correspond to the snap-in component 4, and the snap-in component 4 is snap-connected in the second slot 2131, thereby further limiting the movement of the solenoid valve coil assembly 100 in the insertion direction, thereby preventing the solenoid valve coil assembly 100 from falling off the housing 210 during transportation or assembly.

[0067] Reference Figure 8, a barb 41 may also be provided at one end of the clamping member 4 facing the housing 210, and the barbs 41 of the two clamping members 4 are respectively clamped in the second clamping groove 2131. The number of barbs 41 on each clamping member 4 is one or more, and when the number of barbs 41 is multiple, multiple barbs 41 can increase the stability of the clamping between the clamping member 4 and the housing 210. In the insertion direction, the width of the multiple barbs 41 gradually decreases, and the inclination direction of the barbs 41 is opposite to the insertion direction, that is, the barbs 41 are inclined toward the first end 21 of the metal terminal 2, so that it is easy to insert the barbs 41 into the housing 210.

[0068] Reference Fig.12 , the side wall of the groove 212 may also be provided with a second clamping protrusion 2121, and the second clamping protrusion 2121 is fixedly matched with the carrier 1. The number of the second clamping protrusions 2121 may be one or more. In the present embodiment, the number of the second clamping protrusions 2121 is multiple, for example, four. The four second clamping protrusions 2121 are evenly distributed on the two opposite side walls of the groove 212, which is equivalent to the second clamping protrusions 2121 clamping the carrier 1, that is, increasing the clamping force between the carrier 1 and the housing 210, further improving the stability between the carrier 1 and the housing 210, and increasing the fixing effect between the solenoid valve coil assembly 100 and the housing 210, thereby preventing the solenoid valve coil assembly 100 from falling off from the housing 210 during transportation or assembly. In other embodiments, the second clamping protrusion 2121 may also be formed on the periphery of the carrier 1, and the second clamping protrusion 2121 is fixedly matched with the groove 212, which can also achieve the technical effect of increasing the clamping force between the carrier 1 and the housing 210 and further improving the stability between the carrier 1 and the housing 210.

[0069] Reference Figure 8 The clamping member 4 is integrally provided on the metal terminal 2, and the metal terminal 2 is provided with a neck 25 between the clamping member 4 and the carrier 1, that is, the neck 25 can be the part of the metal terminal 2 between the carrier 1 and the clamping member 4, and the lead 31 is provided on the neck 25 and then electrically connected to the metal terminal 2 through the neck 25. The lead 31 can be wound around the neck 25 to realize the electrical connection between the lead 31 and the metal terminal 2. The lead 31 and the metal terminal 2 can also be fixed together by welding to further improve the stability of the connection between the lead 31 and the metal terminal 2, and the welding method can be resistance welding or soldering.

[0070] In a specific embodiment, referring to Figure 6 , Figure 8The solenoid valve coil assembly 100 may also include a coil carrier 5 and an outer cover 6. The coil 3 is arranged on the outer peripheral surface of the coil carrier 5. The coil carrier 5 supports the coil 3 to prevent the coil 3 from being deformed. The outer cover 6 is arranged on the periphery of the coil 3 and the coil carrier 5. The outer cover 6 can protect the coil 3, isolate the coil 3 from the outside, and prevent the coil 3 from being damaged by external force. One end of the carrier 1 is arranged on the coil carrier 5, and the other end of the carrier 1 protrudes from the outer cover 6, so that part of the carrier 1 can be mutually clamped with the shell 210, thereby enhancing the fixing effect between the solenoid valve coil assembly 100 and the shell 210, and preventing the solenoid valve coil assembly 100 from falling off from the shell 210 during transportation or assembly.

[0071] The first limiting part 51 and the second limiting part 52 can be respectively provided at the opposite ends of the coil carrier 5, and the coil 3 is arranged between the first limiting part 51 and the second limiting part 52, that is, the first limiting part 51 and the second limiting part 52 can limit the movement of the coil 3 in the insertion direction. The coil carrier 5 can also be provided with a protrusion (not shown), which is distributed along the circumference of the coil carrier 5, and the number of the protrusions is multiple, and the multiple protrusions are distributed at intervals in the insertion direction, that is, the multiple protrusions are distributed at intervals in the vertical direction, and the protrusions can limit the movement of the coil 3 in the insertion direction. In the insertion direction, the spacing between adjacent protrusions is preferably greater than or equal to the wire diameter of the wire of the coil 3, so that the wire of the coil 3 can be clamped between adjacent protrusions, further limiting the movement of the coil 3 in the insertion direction, and improving the stability of the position of the coil 3. The carrier 1 and the coil carrier 5 are preferably integrally formed, which can not only improve the bonding force between the carrier 1 and the coil carrier 5, but also facilitate the production of the carrier 1 and the coil carrier 5, thereby improving the production efficiency.

[0072] 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 solenoid valve coil assembly, characterized in that: include: Loading platform; A metal terminal, wherein the metal terminal has a first end and a second end opposite to each other, the first end of the metal terminal is connected to the carrier platform, and the second end of the metal terminal protrudes from the carrier platform; a coil, wherein a lead of the coil is electrically connected to the metal terminal; A clamping piece, wherein the clamping piece 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 shell, the clamping piece is clamped and cooperated with the shell to limit the movement of the solenoid valve coil assembly in the insertion direction.

2. The solenoid valve coil assembly according to claim 1, characterized in that: At least a portion of the clamping member is embedded in the supporting platform, and the clamping member extends from the metal terminal toward the housing and protrudes from the supporting platform.

3. The solenoid valve coil assembly according to claim 2, characterized in that: The clamping member is integrally arranged on the metal terminal; in the insertion direction, a wire clamping piece is arranged on the metal terminal protruding from the supporting platform, and a wire clamping groove for fixing the lead wire is formed between the wire clamping piece and the metal terminal.

4. The solenoid valve coil assembly according to claim 1, characterized in that: In the insertion direction, the clamping member and the supporting platform are spaced apart from each other, and the clamping member extends from the metal terminal toward the housing.

5. The solenoid valve coil assembly according to claim 4, characterized in that: The clamping component is integrally arranged on the metal terminal. The metal terminal forms a neck between the clamping component and the supporting platform. The lead wire is electrically connected to the metal terminal through the neck.

6. The solenoid valve coil assembly according to claim 1, characterized in that: The metal terminal includes a main body portion arranged at the first end, at least a portion of the main body portion is embedded or assembled in the carrier platform, the clamping member integrally extends from a side corresponding to the main body portion and protrudes from the carrier platform, or the clamping member and the main body portion are spaced apart in the insertion direction; The second end of the metal terminal is provided with a mounting foot for mounting to a circuit board, wherein the mounting foot is a needle-type structure for inserting and welding 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.

7. The solenoid valve coil assembly according to claim 1, characterized in that: 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 1, characterized in that: The end of the clamping member facing the shell is provided with a barb, and the number of the barb is one or more. When the number of the barb is plural, the width of the barbs gradually decreases in the insertion direction.

9. The solenoid valve coil assembly according to claim 1, 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.

10. A housing assembly, characterized in that: It comprises a solenoid valve coil assembly and a shell as described in any one of claims 1 to 9, wherein the clamping piece is clamped and matched with the shell.

11. The housing assembly according to claim 10, characterized in that: The shell is provided with a first opening which penetrates through it, and the clamping component is clamped in the first opening.

12. The housing assembly according to claim 11, characterized in that: The side wall of the first opening is provided with a first slot, and the clamping member is clamped in the first slot; and / or, The side wall of the first opening is provided with a first clamping protrusion, and the first clamping protrusion is fixedly matched with the bearing platform; and / or, A first clamping protrusion is formed on the outer periphery of the supporting platform, and the first clamping protrusion is fixedly matched with the first opening.

13. The housing assembly according to claim 10, characterized in that: The shell is provided with a groove and a second opening connected to the groove, part of the support platform is arranged in the groove, the groove is provided with a bottom wall covering the support platform, the second opening penetrates the bottom wall along the insertion direction, and the clamp is clamped in the second opening.

14. The housing assembly according to claim 13, characterized in that: The side wall of the second opening is provided with a second slot, and the clamping member is clamped in the second slot; and / or, The side wall of the groove is provided with a second convex portion, and the second convex portion is fixedly matched with the bearing platform; and / or, A second clamping protrusion is formed on the outer periphery of the supporting platform, and the second clamping protrusion is fixedly matched with the groove.

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