Ignition coil

Abstract

The ignition coil comprises an iron core, a primary coil and a secondary coil, the secondary coil is wound and sleeved outside the iron core, the primary coil is sleeved outside the secondary coil, a cover plate is arranged at the top of the iron core, a wiring mechanism is arranged on the cover plate, and a first opening, a second opening and a third opening are formed in the cover plate. A first conductive block, a second conductive block and a third conductive block are fixedly welded to the first opening, the second opening and the third opening respectively, and the first conductive block, the second conductive block and the third conductive block are arranged, so that connection with conductive parts of external wires is facilitated; the primary coil and the secondary coil are both connected with an external circuit, corresponding plug wire terminals do not need to be selected in the mode, and the universality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition coils, and more specifically, to an ignition coil. Background Art

[0002] There are generally two sets of coils in the ignition coil, namely the primary coil and the secondary coil. One end of the primary coil is connected to the low-voltage power supply, and the other end is connected to the switch device. One end of the secondary coil is connected to the primary coil, and the other end is connected to the high-voltage line output end. When the primary coil is connected to the power supply, a strong magnetic field is formed. The secondary coil and the iron core in the primary coil store magnetic field energy. When the switch device disconnects the primary coil, the magnetic field of the primary coil decays rapidly, a higher voltage is induced in the secondary coil, and high voltage is output at the high-voltage line output end, forming an electric spark. At present, when the ignition coil is connected to the external wire, some of them are connected or disconnected by plugging in the wire terminals. In this method, the plug-in terminals of the ignition coil need to cooperate with the plug-in terminals on the external wire, resulting in a limited scope of use of the ignition coil, which can only be connected to a specific circuit. In addition, when some ignition coils are connected to the external wire, the insulation layer outside the external wire is directly stripped off, the conductive part is clamped between the conductive sheets, and the conductive part is clamped and fixed to prevent the wire from falling off. However, in this method, the conductive sheets and the conductive part are exposed to the air, which is prone to electric shock. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides an ignition coil to solve the technical problems mentioned in the background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ignition coil, comprising an iron core, a primary coil and a secondary coil, the secondary coil is wound and sleeved outside the iron core, the primary coil is sleeved outside the secondary coil, a cover plate is provided on the top of the iron core, a wiring mechanism is provided on the cover plate, a first opening, a second opening and a third opening are provided on the cover plate, a first conductive block, a second conductive block and a third conductive block are respectively fixedly welded at the first opening, the second opening and the third opening, a first connecting wire and a second connecting wire are respectively provided at both ends of the primary coil, the first connecting wire and the first conductive block are soldered, the second connecting wire and the second conductive block are soldered, a third connecting wire and a fourth connecting wire are respectively provided at both ends of the primary coil, the third connecting wire and the third conductive block are soldered, a shell is provided under the cover plate, the shell and the cover plate are fixedly welded, a glue filling port is provided at the bottom of the shell, a sealing cover is provided at the glue filling port, and the sealing cover and the glue filling port are fixedly welded.

[0007] The utility model is further configured such that the wiring mechanism includes a fixed frame, an adjusting rod, a clamping plate and a knob, the bottom end of the adjusting rod is rotatably connected to the clamping plate, and the top end of the adjusting rod passes through the fixed frame and is fixedly connected to the knob, the adjusting rod and the fixed frame are threadedly connected, and the clamping plate and the fixed frame are slidably connected.

[0008] The utility model is further configured such that winding rods are provided on the first conductive block, the second conductive block and the third conductive block, and the wiring mechanisms are provided in three groups, and the clamping plates and adjusting rods in the three groups of the wiring mechanisms are respectively slidably and rotatably sleeved outside the three winding rods.

[0009] The utility model is further configured that the cover plate is provided with a connecting sleeve, the external threaded sleeve of the connecting sleeve is provided with an insulating cover, and the insulating cover is provided with a threading hole.

[0010] The utility model is further configured that three connecting sleeves and three insulating covers are provided, and the three connecting sleeves are respectively provided corresponding to the first opening, the second opening and the third opening.

[0011] The utility model is further configured that one side of the three connecting sleeves is provided with a threading groove.

[0012] The utility model is further configured that a positioning ring is provided on the lower surface of the cover plate, and the shell is sleeved outside the positioning ring.

[0013] The utility model is further configured that the shell is filled with an electrical insulating resin layer.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides an ignition coil, which has the following beneficial effects:

[0016] 1. The utility model is provided with a first conductive block, a second conductive block and a third conductive block, which are convenient for connecting with the conductive part of the external wire, so that the primary coil and the secondary coil are connected with the external circuit, and this method does not need to select the corresponding plug-in terminal, and has strong versatility.

[0017] 2. In the utility model, after the wiring is completed, the insulating cover can be set outside the connecting sleeve to shield the wiring place to avoid electric shock and prevent dust from entering the wiring place. The connecting sleeve is correspondingly provided with a wiring groove to facilitate the connection of the wire and the wiring mechanism, which is easy to operate.

[0018] 3. The utility model is provided with an electrical insulating resin layer, which can avoid electric spark discharge between the voltage-carrying components in the shell and protect the ignition coil. The bottom of the shell is provided with a glue injection port to facilitate injecting electrical insulating resin into the shell to form an electrical insulating resin layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an ignition coil in the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model without the shell and the electrical insulating resin layer;

[0021] Figure 3 This is a schematic diagram of the structure of the cover plate, the electrical insulating resin layer and the housing in the present invention when they are not connected;

[0022] Figure 4 It is a structural schematic diagram of the wiring mechanism and the first conductive block in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the cover plate in the utility model.

[0024] In the figure: 1. iron core; 2. primary coil; 3. secondary coil; 4. cover plate; 5. first opening; 6. second opening; 7. third opening; 8. first conductive block; 9. second conductive block; 10. third conductive block; 11. first connecting wire; 12. second connecting wire; 13. third connecting wire; 14. fourth connecting wire; 15. shell; 16. glue filling port; 17. cover; 18. fixing frame; 19. adjusting rod; 20. pressing plate; 21. knob; 22. winding rod; 23. connecting sleeve; 24. insulating cover; 25. threading hole; 26. threading groove; 27. positioning ring; 28. electrical insulating resin layer. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0028] See also Figure 1-5An ignition coil comprises an iron core 1, a primary coil 2 and a secondary coil 3, wherein the secondary coil 3 is wound and sleeved outside the iron core 1, and the primary coil 2 is sleeved outside the secondary coil 3. A cover plate 4 is provided on the top of the iron core 1, and a wiring mechanism is provided on the cover plate 4. A first opening 5, a second opening 6 and a third opening 7 are provided on the cover plate 4. A first conductive block 8, a second conductive block 9 and a third conductive block 10 are respectively fixedly welded at the first opening 5, the second opening 6 and the third opening 7, and first connecting wires are respectively provided at both ends of the primary coil 2. 11 and the second connecting wire 12, the first connecting wire 11 and the first conductive block 8 are connected by soldering, the second connecting wire 12 and the second conductive block 9 are connected by soldering, the two ends of the primary coil 2 are respectively provided with a third connecting wire 13 and a fourth connecting wire 14, the third connecting wire 13 and the third conductive block 10 are connected by soldering, a shell 15 is provided below the cover plate 4, the shell 15 and the cover plate 4 are fixedly welded, a glue injection port 16 is provided at the bottom of the shell 15, a sealing cover 17 is provided at the glue injection port 16, and the sealing cover 17 and the glue injection port 16 are fixedly welded. A positioning ring 27 is provided on the lower surface of the cover plate 4, and the shell 15 is sleeved outside the positioning ring 27. An electrical insulating resin layer 28 is filled in the shell 15.

[0029] In this embodiment, the cover is turned 180 degrees, the iron core 1 is placed on the cover 4, and the secondary coil 3 is sleeved outside the iron core 1, and the third connecting wire 13 on the secondary coil 3 is fixed by soldering to the third conductive wire block, and then the primary coil 2 is sleeved outside the secondary coil 3, and the first connecting wire 11 at both ends of the primary coil 2 is soldered to the first conductive block 8, and the second connecting wire 12 is soldered to the second conductive block 9, and the fourth connecting wire 14 is connected to the primary coil 2 and the secondary coil 3, and the housing 1 is fixed to the housing 1. 5 is sleeved outside the primary coil 2 until the shell 15 and the cover plate 4 are fitted, and the shell 15 is sleeved outside the positioning ring 27, the cover plate 4 and the shell 15 are welded and fixed, and electrical insulating resin is injected into the glue injection port 16 to fill the shell 15. When the resin hardens, the cover 17 and the glue injection port 16 are welded and fixed, and the device is turned 180 degrees, and the three wiring mechanisms are fixedly installed on the cover plate 4 respectively, and are arranged corresponding to the first conductive block 8, the second conductive block 9 and the third conductive block 10.

[0030] See also Figure 1-5As an implementation method of the wiring mechanism: the wiring mechanism includes a fixing frame 18, an adjusting rod 19, a clamping piece 20 and a knob 21, the bottom end of the adjusting rod 19 is rotatably connected to the clamping piece 20, and the top end of the adjusting rod 19 passes through the fixing frame 18 and is fixedly connected to the knob 21, the adjusting rod 19 and the fixing frame 18 are threadedly connected, and the clamping piece 20 and the fixing frame 18 are slidably connected. The first conductive block 8, the second conductive block 9 and the third conductive block 10 are all provided with winding rods 22, and the wiring mechanism is provided with three groups, and the clamping pieces 20 and the adjusting rods 19 in the three groups of wiring mechanisms are respectively slidably and rotatably sleeved on the outside of the three winding rods 22. A connecting sleeve 23 is provided on the cover plate 4, and an insulating cover 24 is provided with an external thread sleeve of the connecting sleeve 23, and a threading hole 25 is provided on the insulating cover 24. There are three connecting sleeves 23 and three insulating covers 24, and the three connecting sleeves 23 are respectively provided corresponding to the first opening 5, the second opening 6 and the third opening 7. A wire threading groove 26 is provided on one side of each of the three connecting sleeves 23 .

[0031] More specifically, first disconnect the switch device of the external circuit to avoid electric shock when connecting the conductor, remove the insulating cover 24 from the connecting sleeve 23, and pass the wire through the threading hole 25 on the insulating cover 24, peel off the insulation layer at one end of the wire, fit the conductive part on the first conductive block 8, and turn the knob 21 with a screwdriver to drive the clamping plate 20 to move downward through the adjusting rod 19, and press the conductive part on the wire on the first conductive block 8 through the clamping plate 20, and then thread the insulating cover 24 on the outside of the connecting sleeve 23 to complete the connection and fixation between the wire and the first conductive block 8. In the same way, connect the second conductive block 9 and the third conductive block 10 to the external circuit respectively.

[0032] In summary, when the overall device is in use or running: the cover is flipped 180 degrees, the iron core 1 is placed on the cover 4, and the secondary coil 3 is sleeved outside the iron core 1, the third connecting wire 13 on the secondary coil 3 is soldered to the third conductive wire block, and then the primary coil 2 is sleeved outside the secondary coil 3, the first connecting wire 11 at both ends of the primary coil 2 is soldered to the first conductive block 8, the second connecting wire 12 is soldered to the second conductive block 9, and the fourth connecting wire 14 is connected to the primary coil 2 and the secondary coil 3. , sleeve the shell 15 outside the primary coil 2 until the shell 15 and the cover plate 4 are fitted, and the shell 15 is sleeved outside the positioning ring 27, weld the cover plate 4 and the shell 15 to fix them, inject electrical insulating resin into the glue injection port 16, fill the shell 15, when the resin hardens, weld the cover 17 and the glue injection port 16 to fix them, and turn the device 180 degrees, and fix the three wiring mechanisms on the cover plate 4 respectively, and set them corresponding to the first conductive block 8, the second conductive block 9 and the third conductive block 10.

[0033] First, disconnect the switch device of the external circuit to avoid electric shock when connecting the conductor, remove the insulating cover 24 from the connecting sleeve 23, and pass the wire through the threading hole 25 on the insulating cover 24, peel off the insulating layer at one end of the wire, fit the conductive part on the first conductive block 8, and turn the knob 21 with a screwdriver to drive the clamping plate 20 to move downward through the adjusting rod 19, and press the conductive part on the wire on the first conductive block 8 through the clamping plate 20, and then thread the insulating cover 24 on the outside of the connecting sleeve 23 to complete the connection and fixation between the wire and the first conductive block 8. In the same way, connect the second conductive block 9 and the third conductive block 10 to the external circuit respectively.

[0034] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An ignition coil, comprising an iron core (1), a primary coil (2) and a secondary coil (3), wherein the secondary coil (3) is wound around the iron core (1), and the primary coil (2) is sleeved outside the secondary coil (3), wherein: A cover plate (4) is provided on the top of the iron core (1), a wiring mechanism is provided on the cover plate (4), a first opening (5), a second opening (6) and a third opening (7) are provided on the cover plate (4), a first conductive block (8), a second conductive block (9) and a third conductive block (10) are respectively fixedly welded at the first opening (5), the second opening (6) and the third opening (7), a first connecting wire (11) and a second connecting wire (12) are respectively provided at two ends of the primary coil (2), and the first connecting wire (11) and the first conductive block (8) are respectively connected to each other. The second connecting wire (12) and the second conductive block (9) are connected by soldering, a third connecting wire (13) and a fourth connecting wire (14) are respectively provided at two ends of the primary coil (2), the third connecting wire (13) and the third conductive block (10) are connected by soldering, a shell (15) is provided below the cover plate (4), the shell (15) and the cover plate (4) are fixedly welded, a glue injection port (16) is provided at the bottom of the shell (15), a sealing cover (17) is provided at the glue injection port (16), and the sealing cover (17) and the glue injection port (16) are fixedly welded.

2. An ignition coil according to claim 1, characterized in that: The wiring mechanism comprises a fixing frame (18), an adjusting rod (19), a pressing plate (20) and a knob (21); the bottom end of the adjusting rod (19) is rotatably connected to the pressing plate (20), and the top end of the adjusting rod (19) passes through the fixing frame (18) and is fixedly connected to the knob (21); the adjusting rod (19) and the fixing frame (18) are threadedly connected, and the pressing plate (20) and the fixing frame (18) are slidably connected.

3. An ignition coil according to claim 2, characterized in that: The first conductive block (8), the second conductive block (9) and the third conductive block (10) are each provided with a winding rod (22), and the wiring mechanism is provided in three groups, wherein the pressing plates (20) and the adjusting rods (19) in the three groups of the wiring mechanism are respectively slidably and rotatably sleeved outside the three winding rods (22).

4. An ignition coil according to claim 3, characterized in that: The cover plate (4) is provided with a connecting sleeve (23), the connecting sleeve (23) is externally threadedly provided with an insulating cover (24), and the insulating cover (24) is provided with a threading hole (25).

5. An ignition coil according to claim 4, characterized in that: The connecting sleeves (23) and the insulating covers (24) are each provided in three numbers, and the three connecting sleeves (23) are respectively provided corresponding to the first opening (5), the second opening (6) and the third opening (7).

6. An ignition coil according to claim 5, characterized in that: One side of each of the three connecting sleeves (23) is provided with a wire threading groove (26).

7. The ignition coil according to claim 1, characterized in that: A positioning ring (27) is provided on the lower surface of the cover plate (4), and the housing (15) is sleeved outside the positioning ring (27).

8. An ignition coil according to claim 1, characterized in that: The housing (15) is filled with an electrical insulating resin layer (28).

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