Compact electromagnetic coil structure for electronic differential lock

Abstract

The utility model discloses a compact electromagnetic coil structure for electronic differential lock, including the shell, the shell center is equipped with the through groove, the through groove is circular, one side of shell is equipped with the mounting groove, the mounting groove is annular and is provided with the through groove coaxially, be equipped with the coil in the mounting groove, the coil is provided with the mounting groove coaxially, the coil is filled with the insulating glue between the mounting groove groove wall, the coil outside is covered with the insulating adhesive tape, the shell outside is equipped with the connecting hole, be equipped with two connecting wires in the connecting hole, one end of two connecting wires all is connected with the coil, and the other end of two connecting wires is connected with the contact pin respectively, the compact electromagnetic coil structure for electronic differential lock of the utility model does not need to cover the insulating adhesive tape after winding directly without the coil core, and the coil winding speed is fast, and the coil volume is small, can be loaded into the shell fast and conveniently.

Description

Technical Field

[0001] This utility model relates to electromagnetic coil technology, specifically a compact electromagnetic coil structure for electronic differential locks. Background Technology

[0002] An electronic differential lock, short for Electronic Differential System, also known as EDL (Electronic Differential Locking Traction Control), is an extension of ABS. It automatically detects the rotational speed of the two drive wheels using sensors within the ABS system to determine if the wheels have lost traction, thus controlling acceleration and wheel slippage. With the continuous development of automotive technology, the differential will play a crucial role now and in the future. On one hand, with the rise of electric vehicles, the role of the differential may change. Electric vehicles typically use a single motor drive, and the differential's function can be achieved through an electronic control system. This system can react to control signals quickly, rapidly changing the magnetic field strength based on the vehicle's driving status and the driver's operational needs, thereby quickly adjusting the differential's operating mode.

[0003] Therefore, electronic differential locks have very high requirements for the winding of electromagnetic coils. However, the electromagnetic coils of existing electronic differential locks are generally wound on the coil core, resulting in a large coil volume. This makes the entire electronic differential lock also large, making it difficult to install in the housing, which affects the design and application of electronic differential locks. Moreover, it makes the winding process complicated and the winding efficiency poor. Utility Model Content

[0004] To address the shortcomings of the prior art, this invention provides a compact electromagnetic coil structure for electronic differential locks, which eliminates the need for direct winding of the coil core, facilitating rapid coil winding and reducing coil size.

[0005] To achieve the above technical objectives, this utility model adopts the following technical solution: a compact electromagnetic coil structure for an electronic differential lock, comprising a housing, a circular through groove at the center of the housing, an annular mounting groove on one side of the housing, a coil coaxially arranged with the mounting groove, insulating glue filling the space between the coil and the groove wall, insulating tape covering the outside of the coil, a connecting hole on the outside of the housing, two connecting wires in the connecting hole, one end of each connecting wire connected to the coil, and the other end of each connecting wire connected to a pin.

[0006] Preferably, the vertical cross-section of the coil is square.

[0007] Preferably, the side wall of the mounting groove is provided with a limiting groove.

[0008] Preferably, the outer casing is provided with a positioning pin on the side opposite to the mounting groove.

[0009] Preferably, an insulating tube is sleeved on the connecting line.

[0010] Preferably, the insulating tube includes a first insulating tube and a second insulating tube, and a sealing plug is provided between the first insulating tube and the second insulating tube, through which the connecting wire passes.

[0011] Preferably, the connecting hole is fitted with a wire plug, and the connecting wire passes through the wire plug.

[0012] In summary, this utility model achieves the following technical effects:

[0013] The compact electromagnetic coil structure of this invention for electronic differential locks eliminates the need for coil cores; the coils are directly wound and then covered with insulating tape. The coil winding speed is fast, the coil size is small, and it can be quickly and easily installed into the housing. Attached Figure Description

[0014] Figure 1 This is an assembly diagram of the compact electromagnetic coil structure for the electronic differential lock of this utility model;

[0015] Figure 2 This is a schematic diagram of the compact electromagnetic coil structure for the electronic differential lock of this utility model;

[0016] Figure 3 This is a cross-sectional view of the compact electromagnetic coil structure for the electronic differential lock of this utility model;

[0017] Explanation of reference numerals in the accompanying drawings: 1. Outer shell; 2. Coil; 21. Wire; 22. Insulating tape; 3. Positioning pin; 4. Connecting wire; 5. First insulating tube; 6. Sealing plug; 7. Second insulating tube; 8. Pin; 9. Mounting slot; 10. Connecting hole. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] Example 1:

[0025] like Figure 1As shown in Figure 3, a compact electromagnetic coil 2 structure for an electronic differential lock includes a housing 1. The housing 1 has a circular through groove at its center. The housing 1 has an annular mounting groove 9 on one side, which is coaxial with the through groove. A coil 2 is placed inside the mounting groove 9 and is coaxial with the mounting groove 9. The space between the coil 2 and the groove wall of the mounting groove 9 is filled with insulating glue. The outside of the coil 2 is covered with insulating tape 22. The outside of the housing 1 has a connecting hole 10 with two connecting wires 4. One end of each connecting wire 4 is connected to the coil 2, and the other end of each connecting wire 4 is connected to a pin 8.

[0026] The coil 2 is made of self-adhesive wire 21. Then, the coil 2 is made into a square vertical cross section by pressing resistance welding and wrapped with insulating tape 22 to form the final shape. At the same time, the coil 2 is connected to the connecting wire 4. The coil 2 is then placed in the mounting groove 9 and the insulating glue is vacuum-filled into the mounting groove 9 to fix the coil 2 to the outer shell 1. Finally, the first insulating tube 5, the sealing plug 6 and the second insulating tube 7 are sequentially sleeved on the connecting wire 4. The first insulating tube 5 and the second insulating tube 7 are heat-shrink and tightened by heating.

[0027] The electronic differential lock of this invention uses a compact electromagnetic coil 2 structure. It does not require the coil 2 core to be directly wound and then covered with insulating tape 22. The coil 2 can be wound quickly and is small in size, and can be quickly and easily installed into the outer shell 1.

[0028] The vertical cross-section of the coil 2 is square.

[0029] The mounting groove 9 has a limiting groove on its side wall; the limiting groove can be filled with insulating glue to form a convex ring that extends into the limiting groove, thereby preventing the coil 2 from separating from the outer shell 1.

[0030] The outer casing 1 is provided with a positioning pin 3 on the side opposite to the mounting groove 9; the positioning pin 3 facilitates the assembly of the outer casing 1 with the electronic differential lock.

[0031] An insulating tube is fitted onto the connecting wire 4; the insulating tube includes a first insulating tube 5 and a second insulating tube 7, and a sealing plug 6 is provided between the first insulating tube 5 and the second insulating tube 7, through which the connecting wire 4 passes; both the first insulating tube 5 and the second insulating tube 7 are heat shrink tubing.

[0032] The connecting hole 10 is fitted with a wire plug, and the connecting wire 4 passes through the wire plug.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A compact electromagnetic coil structure for an electronic differential lock, characterized in that, The device includes an outer casing with a circular through groove at its center. A mounting groove, annular in shape and coaxial with the through groove, is located on one side of the casing. A coil is housed within the mounting groove and is coaxial with it. Insulating adhesive is filled between the coil and the groove wall. Insulating tape covers the outside of the coil. A connecting hole is located on the outside of the casing, containing two connecting wires. One end of each connecting wire is connected to the coil, and the other end is connected to a pin.

2. The compact electromagnetic coil structure for an electronic differential lock according to claim 1, characterized in that, The coil has a square vertical cross-section.

3. The compact electromagnetic coil structure for an electronic differential lock according to claim 1, characterized in that, The mounting groove has a limiting groove on its side wall.

4. The compact electromagnetic coil structure for an electronic differential lock according to claim 1, characterized in that, The outer casing is provided with a positioning pin on the side opposite to the mounting groove.

5. The compact electromagnetic coil structure for an electronic differential lock according to claim 1, characterized in that, An insulating tube is fitted onto the connecting line.

6. A compact electromagnetic coil structure for an electronic differential lock according to claim 5, characterized in that, The insulating tube includes a first insulating tube and a second insulating tube, and a sealing plug is provided between the first insulating tube and the second insulating tube, through which the connecting wire passes.

7. A compact electromagnetic coil structure for an electronic differential lock according to claim 1, characterized in that, The connecting hole is fitted with a wire plug, and the connecting wire passes through the wire plug.

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