Coil module

Abstract

The utility model discloses a coil module. The coil module comprises a module shell, a module cover plate, a plurality of coil windings and a circuit board, wherein one side of the module shell is provided with an opening; the module cover plate covers the opening side of the module shell; a terminal interface is arranged outside the module shell, a circuit board mounting boss is arranged on the inner side of the module cover plate, a circuit board mounting groove is formed in the circuit board mounting boss, the circuit board is positioned and mounted in the circuit board mounting groove, and a circuit board wiring terminal penetrating into the terminal interface is arranged on the circuit board; a plurality of coil winding mounting grooves are formed in the inner side of the module cover plate, the first ends of the coil windings are positioned and mounted in the coil winding mounting grooves in a one-to-one correspondence mode, and coil wiring terminals connected to the circuit board are arranged on the side portions, close to the second ends, of the coil windings; and the second end of each coil winding is limited on the inner side of the module shell. According to the utility model, the assembly difficulty is reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts, and particularly relates to a coil module. Background Art

[0002] A single coil usually refers to a ring-shaped wire winding structure. By combining coils into a module body through a coil module and matching it with a valve body module, it is used to control the on and off of the flow path of an automotive suspension system or a thermal management system.

[0003] Chinese invention CN113823486B discloses a coil module, which includes a module housing, a plurality of coil modules, a circuit board and a module cover plate. When assembling this coil module, it is necessary to first weld the connection terminals of each coil module on the circuit board to form an integral whole, and then install the whole into the module housing. When the coil module and the circuit board are installed in the module housing, one end of each coil module needs to be inserted and positioned in each module installation cavity in the module housing, and the circuit board is fixed in the module housing by screws. After the coil module and the circuit board are installed in the module housing, the module cover plate is installed, so that the other end of each coil module is positioned in each cover plate installation groove on the module cover plate, and the assembly can be completed. However, when assembling the above coil module, it is necessary to perform blind operation to align the two ends of each coil module with each module installation cavity and the cover plate installation groove, and the alignment is relatively difficult, so the assembly is relatively troublesome. Summary of the Utility Model

[0004] Aiming at the defects in the prior art, the utility model provides a coil module to reduce the assembly difficulty and improve the assembly efficiency.

[0005] The utility model provides a coil module, which includes a module housing with one side being an opening, a module cover plate covering the opening side of the module housing, and a plurality of coil windings and a circuit board arranged in the module housing;

[0006] A terminal interface is arranged outside the module housing, a circuit board mounting boss is arranged on the inner side of the module cover plate, a circuit board mounting groove is arranged on the circuit board mounting boss, the circuit board is positioned and installed in the circuit board mounting groove, and a circuit board wiring terminal penetrating into the terminal interface is arranged on the circuit board;

[0007] A plurality of coil winding mounting grooves are arranged on the inner side of the module cover plate, the first ends of the coil windings are respectively positioned and installed in the coil winding mounting grooves one by one, coil wiring terminals respectively connected to the circuit board are arranged on the side parts of the coil windings close to the second ends, and the second ends of the coil windings are respectively limited inside the module housing.

[0008] Furthermore, a plurality of positioning posts are arranged in the circuit board mounting groove, and positioning holes matched with the positioning posts one by one are arranged on the circuit board.

[0009] Further, a support frame is provided at the bottom of the coil winding installation groove, and the circuit board is supported on the support frame.

[0010] Further, the module cover plate is embedded in the opening of the module housing. A plurality of connecting ears are provided around one side of the module housing where the module cover plate is located, and connecting holes are provided on each of the connecting ears.

[0011] Further, the module housing and the module cover plate are fixedly connected by screws.

[0012] Further, the circuit board is strip-shaped. Each of the coil windings is arranged on both sides of the circuit board, and the circuit board mounting boss is provided in the middle of the module cover plate. Each of the circuit board mounting grooves is arranged on both sides of the circuit board mounting boss.

[0013] Further, there are 7 coil windings, among which 3 coil windings are distributed on one side of the circuit board and 4 coil windings are distributed on the other side of the circuit board.

[0014] Further, the coil winding includes a coil skeleton and a winding provided outside the coil skeleton. A central hole penetrating through both ends is provided in the coil skeleton. A magnetic conductor covering the winding is sleeved outside the coil skeleton. One end of the magnetic conductor is provided with a magnetic conductor extension ring that bypasses the first end of the coil skeleton and is embedded in the central hole. A magnetic conductor cover plate is provided at the second end of the coil skeleton. A hole aligned with the central hole is provided on the magnetic conductor cover plate, and a magnetic conductor cover plate extension ring embedded in the central hole is provided at the peripheral edge of the hole on the magnetic conductor cover plate.

[0015] The beneficial effects of the present utility model are embodied in:

[0016] When assembling the coil module of the present application, first weld the coil connection terminals of each coil winding to the corresponding points on the circuit board, then install each coil winding one by one in the corresponding coil winding installation grooves on the module cover plate, install the circuit board in the circuit board installation groove on the circuit board mounting boss, then cover the module housing on the module cover plate, and finally fix the module housing and the module cover plate, then the assembly of the coil module can be completed. Compared with the prior art, the positioning and installation of the circuit board and the coil windings in the present application are more convenient, the assembly difficulty is reduced, and the assembly efficiency is improved. Description of the Drawings

[0017] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual ratio.

[0018] Figure 1 Schematic diagram of the assembly of the embodiment of the present utility model;

[0019] Figure 2 Schematic diagram of the structure of the circuit board of the module cover plate of the embodiment of the present utility model combined with each coil winding;

[0020] Figure 3 Schematic diagram of the structure of the module cover plate of the embodiment of the present utility model;

[0021] Figure 4 Bottom view of the embodiment of the present utility model;

[0022] Figure 5 Cross-sectional view of the coil winding of the embodiment of the present utility model.

[0023] In the drawings, 100 - module housing; 110 - terminal interface; 120 - connecting ear; 121 - connecting hole; 200 - module cover plate; 210 - circuit board mounting boss; 211 - circuit board mounting groove; 212 - positioning post; 213 - support frame; 220 - coil winding mounting groove; 230 - screw; 300 - coil winding; 310 - coil wiring terminal; 320 - coil bobbin; 321 - central hole; 330 - winding; 340 - magnetic conductor; 341 - magnetic conductor extension ring; 350 - magnetic cover plate; 351 - magnetic cover plate extension ring; 400 - circuit board; 410 - circuit board wiring terminal; 420 - positioning hole. Detailed implementation manners

[0024] Hereinafter, embodiments of the technical solution of the present utility model will be described in detail with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and thus are only examples and cannot be used to limit the protection scope of the present utility model.

[0025] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0026] As Figures 1 - 5 shown, the embodiment of the present utility model provides a coil module, which includes a module housing 100 with one side being an opening, a module cover plate 200 covering the opening side of the module housing 100, and a plurality of coil windings 300 and a circuit board 400 disposed inside the module housing 100.

[0027] Refer to Figure 1, a terminal interface 110 is provided outside the module housing 100, a circuit board mounting boss 210 is provided on the inner side of the module cover 200, a circuit board mounting groove 211 is provided on the circuit board mounting boss 210, the circuit board 400 is positioned and installed in the circuit board mounting groove 211, and a circuit board terminal 410 penetrating into the terminal interface 110 is provided on the circuit board 400. The circuit board terminal 410 of this embodiment is preferably a pin.

[0028] Refer to Figure 3 , a plurality of positioning posts 212 are provided in the circuit board mounting groove 211, positioning holes 420 that cooperate with the positioning posts 212 one by one are provided on the circuit board 400. When the circuit board 400 is inserted into the circuit board mounting groove 211, the positioning posts 212 are respectively inserted into the positioning holes 420 to position the circuit board 400. The circuit board 400 can be fixed by hot melting, welding or potting the positioning posts 212.

[0029] A support frame 213 is provided at the bottom of the coil winding mounting groove 220, and the circuit board 400 is supported on the support frame 213.

[0030] A plurality of coil winding mounting grooves 220 are provided on the inner side of the module cover 200. The first ends of the coil windings 300 are respectively positioned and installed in the coil winding mounting grooves 220. Coil terminals 310 respectively connected to the circuit board 400 are provided on the side portions of the coil windings 300 near the second ends, and the second ends of the coil windings 300 are respectively limited to the inner side of the module housing 100.

[0031] Refer to Figure 1 and Figure 4 , the module cover 200 is embedded in the opening of the module housing 100. A plurality of connecting ears 120 are provided around the module housing 100 on one side of the module cover 200, and connection holes 121 are provided on each connecting ear 120. The connection holes 121 are mainly used to connect the coil module to the valve body module.

[0032] The module housing 100 and the module cover 200 can be fixed by screws, potting, etc. As Figure 4 shown, the module housing 100 and the module cover 200 of this embodiment are fixedly connected by screws 230.

[0033] As Figure 2 and Figure 3 shown, in order to optimize the layout, the circuit board 400 is long strip-shaped, the coil windings 300 are arranged on both sides of the circuit board 400, and the circuit board mounting boss 210 is provided in the middle of the module cover 200, and the circuit board mounting grooves 211 are arranged on both sides of the circuit board mounting boss 210.

[0034] The number of coil windings 300 is two or more. In this embodiment, specifically, there are 7 coil windings 300, among which 3 coil windings 300 are distributed on one side of the circuit board 400, and 4 coil windings 300 are distributed on the other side of the circuit board 400.

[0035] Referring to Figure 5 , the coil winding 300 includes a coil bobbin 320 and a winding 330 provided outside the coil bobbin 320. A central hole 321 penetrating both ends is provided inside the coil bobbin 320. A magnetic conductor 340 covering the winding 330 is sleeved outside the coil bobbin 320. One end of the magnetic conductor 340 is provided with a magnetic conductor extension ring 341 that bypasses the first end of the coil bobbin 320 and is embedded in the central hole 321. A magnetic conductor cover plate 350 is provided at the second end of the coil bobbin 320. The magnetic conductor cover plate 350 is provided with a hole aligned with the central hole 321, and a magnetic conductor cover plate extension ring 351 embedded in the central hole 321 is provided at the peripheral edge of the hole of the magnetic conductor cover plate 350. By providing an integrated extension structure on the magnetic conductor 340 and the magnetic conductor cover plate 350, it is integrally formed during processing, with fewer parts, simple assembly and good magnetic conduction effect.

[0036] The coil module of this embodiment adopts an integrated structure and can be used to control the opening and closing or flow regulation of a valve. During operation, the coil winding 300 receives signals through an external device connected to the circuit board terminal 410, and realizes signal transmission through the direct connection between the circuit board 400 and each coil winding 300, so as to realize the operation of the coil module.

[0037] When assembling the coil module of this application, first weld the coil connection terminals 310 of each coil winding 300 to the corresponding positions on the circuit board 400, then install each coil winding 300 one by one in the coil winding installation grooves 220 on the module cover plate 200, and install the circuit board 400 in the circuit board installation groove 211 on the circuit board installation boss 210. Then cover the module housing 100 on the module cover plate 200, and finally fix the module housing 100 and the module cover plate 200, and the assembly of the coil module can be completed. Compared with the prior art, the positioning and installation of the circuit board 400 and the coil winding 300 in this application are more convenient, reducing the assembly difficulty and improving the assembly efficiency.

[0038] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A coil module, comprising a module housing with an opening on one side, a module cover covering the opening side of the module housing, and a plurality of coil windings and circuit boards arranged in the module housing, characterized in that: The module housing is provided with a terminal interface on the outside, the module cover is provided with a circuit board mounting boss on the inner side, the circuit board mounting boss is provided with a circuit board mounting groove, the circuit board is positioned and mounted in the circuit board mounting groove, and the circuit board is provided with a circuit board connection terminal that penetrates into the terminal interface; A plurality of coil winding installation grooves are provided on the inner side of the module cover plate, and the first ends of the coil windings are positioned and installed in the coil winding installation grooves one by one. The sides of the coil windings close to the second ends are provided with coil connection terminals respectively connected to the circuit board, and the second ends of the coil windings are respectively limited to the inner side of the module shell.

2. The coil module according to claim 1, characterized in that: A plurality of positioning posts are arranged in the circuit board installation groove, and positioning holes which match with the positioning posts one by one are arranged on the circuit board.

3. The coil module according to claim 1, characterized in that: A supporting frame is provided at the bottom of the coil winding installation groove, and the circuit board is supported on the supporting frame.

4. The coil module according to claim 1, characterized in that: The module cover is embedded in the opening of the module shell. The module shell is provided with a plurality of connecting ears around one side of the module cover, and each of the connecting ears is provided with a connecting hole.

5. The coil module according to claim 1, characterized in that: The module shell and the module cover are fixedly connected by screws.

6. The coil module according to claim 1, characterized in that: The circuit board is in the shape of a long strip, the coil windings are arranged on both sides of the circuit board, and the circuit board mounting boss is arranged in the middle of the module cover, and the circuit board mounting grooves are arranged on both sides of the circuit board mounting boss.

7. The coil module according to claim 6, characterized in that: There are seven coil windings, three of which are distributed on one side of the circuit board, and four of which are distributed on the other side of the circuit board.

8. The coil module according to any one of claims 1 to 7, characterized in that: The coil winding includes a coil frame and a winding arranged outside the coil frame, the coil frame is provided with a center hole passing through both ends, the coil frame is outerly provided with a magnetic conductor covering the outside of the winding, one end of the magnetic conductor is provided with a magnetic conductor extension ring that bypasses the first end of the coil frame and is embedded in the center hole, the second end of the coil frame is provided with a magnetic cover plate, the magnetic cover plate is provided with a hole aligned with the center hole, and the periphery of the hole of the magnetic cover plate is provided with a magnetic cover plate extension ring embedded in the center hole.

Images