Penholder type ignition coil with high stability and long service life

Abstract

The utility model discloses a high stability long life penholder style ignition coil, including shell subassembly, fan heat dissipation subassembly and connecting subassembly, the shell subassembly includes outer shell mechanism, inner shell mechanism, winding mechanism and radiating fin mechanism, the inner shell mechanism is provided in the outer shell mechanism, winding mechanism is provided in the inner shell mechanism, the radiating fin mechanism is provided in the outer shell mechanism, and the fan heat dissipation subassembly is provided in the radiating fin mechanism. The heat dissipation fin mechanism is arranged on the surface of the inner shell mechanism and attached to the inner wall of the outer shell mechanism, and one end of the heat dissipation fin mechanism penetrates into the inner shell mechanism and is connected with one end of the winding mechanism; the fan heat dissipation assembly and the connecting assembly are arranged at the top and the bottom of the shell mechanism correspondingly and communicate with each other. Therefore, the device can autonomously judge the level of generated heat in the operation process of the ignition coil, and heat dissipation treatment is carried out in time according to the level, so that the ignition coil is effectively prevented from being overheated, the stability of the ignition coil is remarkably improved, and the service life of the ignition coil is remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition coils, in particular to a pen-type ignition coil with high stability and long service life. Background Art

[0002] The ignition coil is the core component of the engine ignition system, and its performance is directly related to the normal operation of the engine and the power output of the vehicle. During operation, the ignition coil will inevitably generate a lot of heat. The accumulation of this heat may not only cause the ignition coil itself to work abnormally, but also have adverse effects on surrounding parts and even cause failure of the entire ignition system.

[0003] The stability of the ignition coil is crucial to the operation of the engine. It undertakes the key task of converting the vehicle's low-voltage power supply into high-voltage electricity, thereby driving the spark plug to generate sparks and ensure that the mixed gas in the cylinder can be ignited smoothly. However, once the ignition coil is unstable due to overheating, the spark plug may not work properly, resulting in the inability of the mixed gas in the cylinder to effectively explode, thus affecting the engine's power output, and even causing the vehicle to be unstable or stall.

[0004] In addition to affecting the working stability of the ignition coil, the heat dissipation problem will also have a direct impact on the service life of the ignition coil. Long-term high-temperature working environment will accelerate the aging of its internal insulation material, thereby reducing its service life. This not only increases the cost of repair and replacement, but may also pose a potential threat to the safety and reliability of the vehicle. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the utility model is to propose a high-stability and high-life pen-type ignition coil, which can independently judge the heat level generated during the operation of the ignition coil and perform heat dissipation in time accordingly, thereby effectively preventing the ignition coil from overheating and significantly improving the stability and service life of the ignition coil.

[0007] To achieve the above-mentioned purpose, the utility model proposes a high-stability and high-life pen-type ignition coil, comprising a shell assembly, a fan heat dissipation assembly and a connecting assembly, wherein the shell assembly comprises an outer shell mechanism, an inner shell mechanism, a winding mechanism and a heat dissipation fin mechanism, wherein the inner shell mechanism is arranged inside the outer shell mechanism, the winding mechanism is arranged inside the inner shell mechanism, the heat dissipation fin mechanism is arranged on the surface of the inner shell mechanism and fits with the inner wall of the outer shell mechanism, one end of the heat dissipation fin mechanism penetrates into the inner shell mechanism and is connected to one end of the winding mechanism; the fan heat dissipation assembly and the connecting assembly are respectively arranged at the top of the outer shell mechanism and the bottom of the outer shell mechanism, and are connected, one end of the connecting assembly is connected to one end of the winding mechanism, and the other end of the connecting assembly is connected to one end of an external spark plug.

[0008] The high-stability and high-life pen-type ignition coil of the utility model can independently determine the heat level generated during the operation of the ignition coil, and promptly perform heat dissipation processing accordingly, thereby effectively preventing the ignition coil from overheating and significantly improving the stability and service life of the ignition coil.

[0009] In addition, the high-stability and high-life pen-type ignition coil proposed in the application may also have the following additional technical features:

[0010] Specifically, the shell mechanism includes an outer shell, a plug-in connector, a fixing seat and an air inlet, wherein the plug-in connector is fixedly connected to the upper end surface of the outer shell and is communicated with the interior of the outer shell; the fixing seat is threadedly connected to the middle end surface of the outer shell; the air inlet is evenly arranged at the bottom of the outer shell and is communicated with the interior of the outer shell.

[0011] Specifically, the inner shell mechanism includes an upper end seat, a middle cylinder and a lower end seat, wherein the lower end seat is clamped and fixed to the inner wall of the outer shell; the middle cylinder is threadedly connected to the top of the lower end seat, and one end of the middle cylinder passes through the bottom of the lower end seat; the upper end seat is threadedly connected to the top of the middle cylinder and is connected to the inside of the middle cylinder; a positioning shaft is provided at the top of the upper end seat, and is slidably connected to the inner wall of one end of the fan heat dissipation assembly.

[0012] Specifically, the winding mechanism includes a primary wire seat, a primary winding, a secondary wire seat, a secondary winding, an iron core and an insulating porcelain cup, wherein the primary wire seat is threadedly connected to the inner wall of the middle cylinder; the primary winding is wound on the surface of the primary wire seat; the secondary wire seat is threadedly connected to the inner wall of the primary wire seat; the secondary winding is wound on the surface of the secondary wire seat and is located on the inner side of the primary wire seat; the iron core is arranged on the inner wall of the secondary wire seat; one end of the primary winding is connected to the plug-in connector, and the other end of the primary winding is connected to one end of the secondary winding; the two ends of the iron core respectively pass through the top of the secondary wire seat and the bottom of the secondary wire seat, and the insulating porcelain cups are respectively arranged on the inner wall of the middle cylinder and the inner wall of the upper end seat, and are in contact with the two ends of the iron core.

[0013] Specifically, the heat dissipation fin mechanism includes a heat sink, a heat conductive ring and heat conductive silicone, wherein the heat conductive ring is arranged on the inner wall of the upper end seat and is sleeved on the outer side of the iron core, and the inner wall of the heat conductive ring and the outer surface of the iron core are connected by the heat conductive silicone; the heat sink is evenly arranged on the surface of the upper end seat and fits with the inner wall of the outer shell; one end of the heat sink passes through the interior of the upper end seat and fits with the surface of the heat conductive ring, and the other end of the heat sink is abutted and fixed on the surface of the lower end seat; the space between two adjacent groups of heat sinks forms a heat dissipation channel, the number of the heat dissipation channels is equal to that of the air inlet holes, and the positions correspond to each other, and the heat dissipation channels are connected with the outside of the outer shell through the air inlet holes.

[0014] Specifically, the fan heat dissipation assembly includes a heat dissipation shell, a thermostat, an exhaust hole plate, a heat dissipation fan and a temperature sensor, wherein the heat dissipation shell is threadedly connected to the top of the outer shell and is connected to the inside of the outer shell; the thermostat is fixedly connected to the surface of the heat dissipation shell; the exhaust hole plate, the heat dissipation fan and the temperature sensor are arranged in sequence from top to bottom on the inner wall of the heat dissipation shell; one end of the temperature sensor passes through the inside of the outer shell and contacts the surface of the heat sink; the thermostat is electrically connected to the heat dissipation fan and the temperature sensor respectively.

[0015] Specifically, the connecting assembly includes a connecting shell, a high-voltage electric socket and a conductive spring, wherein the connecting shell is threadedly connected to the bottom of the outer shell and is connected to the interior of the outer shell; the high-voltage electric socket is fixedly connected to the inner wall of the connecting shell, and the high-voltage output end of the secondary winding is connected to the top of the high-voltage electric socket; the conductive spring is fixedly connected to the bottom of the high-voltage electric socket, and one end of the spark plug is threadedly connected to the bottom of the connecting shell and is in contact with one end of the conductive spring.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of a pen-type ignition coil with high stability and long service life according to one embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a housing assembly in a high-stability and high-life pen-type ignition coil according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the housing mechanism in a high-stability and long-life pen-type ignition coil according to one embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the inner shell mechanism in a high-stability and long-life pen-type ignition coil according to one embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the winding structure of a high-stability and high-life pen-type ignition coil according to an embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of a fan heat dissipation component in a high-stability and long-life pen-type ignition coil according to an embodiment of the utility model;

[0024] Figure 7 This is a schematic diagram of the air inlet structure in a high-stability and long-life pen-type ignition coil according to an embodiment of the utility model;

[0025] Figure 8 The present invention is a schematic diagram of the structure of the connecting components in a high-stability and long-life pen-type ignition coil according to an embodiment of the present invention.

[0026] As shown in the figure:

[0027] 1. Shell assembly; 2. Fan heat dissipation assembly; 3. Connection assembly; 11. Outer shell mechanism; 12. Inner shell mechanism; 13. Winding mechanism; 14. Heat dissipation fin mechanism;

[0028] 111. outer shell; 112. plug connector; 113. fixing seat; 114. air inlet;

[0029] 121, upper end seat; 122, middle tube; 123, lower end seat;

[0030] 131. Primary wire holder; 132. Primary winding; 133. Secondary wire holder; 134. Secondary winding; 135. Iron core; 136. Insulating porcelain cup;

[0031] 141. heat sink; 142. thermal conductive ring; 143. thermal conductive silicone;

[0032] 21. Heat dissipation housing; 22. Thermostat; 23. Exhaust hole plate; 24. Heat dissipation fan; 25. Temperature sensor;

[0033] 31. Connecting shell; 32. High voltage electric socket; 33. Conductive spring. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0035] The high stability and long life pen-type ignition coil of the embodiment of the utility model is described below with reference to the accompanying drawings.

[0036] like Figure 1-Figure 8 As shown, the high-stability and high-life pen-type ignition coil of the embodiment of the utility model includes a shell component 1, a fan heat dissipation component 2 and a connecting component 3, wherein the shell component 1 includes an outer shell mechanism 11, an inner shell mechanism 12, a winding mechanism 13 and a heat dissipation fin mechanism 14, wherein the inner shell mechanism 12 is arranged inside the outer shell mechanism 11, the winding mechanism 13 is arranged inside the inner shell mechanism 12, the heat dissipation fin mechanism 14 is arranged on the surface of the inner shell mechanism 12 and fits with the inner wall of the outer shell mechanism 11, one end of the heat dissipation fin mechanism 14 penetrates into the inner shell mechanism 12 and is connected to one end of the winding mechanism 13; the fan heat dissipation component 2 and the connecting component 3 are respectively arranged at the top of the outer shell mechanism 11 and the bottom of the outer shell mechanism 11, and are connected, one end of the connecting component 3 is connected to one end of the winding mechanism 13, and the other end of the connecting component 3 is connected to one end of the external spark plug.

[0037] Specifically, when working, the power is turned on. As the current increases, a very strong magnetic field is generated around the primary winding 132 and the secondary winding 134 in the winding mechanism 13. The iron core 135 in the winding mechanism 13 stores magnetic field energy. When the primary winding 132 is disconnected, the magnetic field of the primary winding 132 decays rapidly, and the secondary winding 134 will induce a very high voltage. The faster the magnetic field of the primary winding 132 disappears, the greater the current at the moment of current disconnection. The secondary winding 134 transmits current to the high-voltage electric socket 32 ​​in the connecting component 3, and the iron core 135 will generate a large amount of heat when high voltage electricity is generated.

[0038] The heat dissipation fin mechanism 14 achieves heat dissipation of the iron core 135 by the cooperation of the heat dissipation fin 141 , the heat conductive ring 142 and the heat conductive silica gel 143 .

[0039] When the heat dissipation fin mechanism 14 cannot meet normal heat dissipation requirements, the fan heat dissipation component 2 will open and close automatically according to the temperature of the surface of the heat sink 141. The fan heat dissipation component 2 accelerates the air flow rate on the surface of the heat sink 141 by extracting air between the inner shell mechanism 12 and the outer shell mechanism 11, thereby further improving the heat dissipation effect.

[0040] The device can independently determine the heat level generated by the ignition coil during operation, and timely perform heat dissipation treatment accordingly, thereby effectively preventing the ignition coil from overheating and significantly improving the stability and service life of the ignition coil.

[0041] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the shell mechanism 11 includes an outer shell 111, a plug-in connector 112, a fixing seat 113 and an air inlet 114, wherein the plug-in connector 112 is fixedly connected to the upper end surface of the outer shell 111 and is communicated with the interior of the outer shell 111; the fixing seat 113 is threadedly connected to the middle end surface of the outer shell 111; the air inlet 114 is evenly arranged at the bottom of the outer shell 111 and is communicated with the interior of the outer shell 111.

[0042] It should be noted that the plug connector 112 described in this embodiment is used for connecting electricity. The plug connector 112 is a prior art and will not be described here.

[0043] It should also be noted that the fixing base 113 is designed to facilitate installation and fixing.

[0044] Specifically, the structure and connection relationship of the housing mechanism 11 are further described.

[0045] In one embodiment of the present invention, Figure 2 and Figure 4As shown, the inner shell mechanism 12 includes an upper end seat 121, a middle cylinder 122 and a lower end seat 123, wherein the lower end seat 123 is clamped and fixed to the inner wall of the outer shell 111; the middle cylinder 122 is threadedly connected to the top of the lower end seat 123, and one end of the middle cylinder 122 passes through the bottom of the lower end seat 123; the upper end seat 121 is threadedly connected to the top of the middle cylinder 122 and is connected to the inside of the middle cylinder 122; a positioning shaft is provided at the top of the upper end seat 121, and is slidably connected to the inner wall at one end.

[0046] It should be noted that the fan heat dissipation assembly 2 described in this embodiment is sleeved on the outside of the positioning shaft and limits the position of the upper end seat 121.

[0047] It should also be noted that the upper end seat 121 , the middle tube 122 and the lower end seat 123 are all made of insulating materials.

[0048] It can be understood that the interior of the inner shell mechanism 12 is filled with insulating material.

[0049] Specifically, the structure and connection relationship of the inner shell mechanism 12 are further described.

[0050] In one embodiment of the present invention, Figure 2 and Figure 5 As shown, the winding mechanism 13 includes a primary wire holder 131, a primary winding 132, a secondary wire holder 133, a secondary winding 134, an iron core 135 and an insulating porcelain cup 136, wherein the primary wire holder 131 is threadedly connected to the inner wall of the middle cylinder 122; the primary winding 132 is wound on the surface of the primary wire holder 131; the secondary wire holder 133 is threadedly connected to the inner wall of the primary wire holder 131; the secondary winding 134 is wound on the surface of the secondary wire holder 133 and is located at the primary Inside the wire holder 131; the iron core 135 is arranged on the inner wall of the secondary wire holder 133; one end of the primary winding 132 is connected to the plug connector 112, and the other end of the primary winding 132 is connected to one end of the secondary winding 134; the two ends of the iron core 135 respectively pass through the top and the bottom of the secondary wire holder 133, and the insulating porcelain cup 136 is respectively arranged on the inner wall of the middle cylinder 122 and the inner wall of the upper end seat 121, and is in contact with the two ends of the iron core 135.

[0051] It should be noted that the winding mechanism 13 described in this embodiment is prior art and will not be described here.

[0052] Specifically, the structure and connection relationship of the winding mechanism 13 will be further described.

[0053] In one embodiment of the present invention, Figure 4-Figure 5As shown, the heat dissipation fin mechanism 14 includes a heat dissipation fin 141, a heat conductive ring 142 and a heat conductive silicone 143, wherein the heat conductive ring 142 is arranged on the inner wall of the upper end seat 121 and sleeved on the outer side of the iron core 135, and the inner wall of the heat conductive ring 142 and the outer surface of the iron core 135 are connected by the heat conductive silicone 143; the heat dissipation fins 141 are evenly arranged on the surface of the upper end seat 121 and fit with the inner wall of the outer shell 111; one end of the heat dissipation fin 141 penetrates into the interior of the upper end seat 121 and fits with the surface of the heat conductive ring 142, and the other end of the heat dissipation fin 141 is fixed to the space between two adjacent groups of heat dissipation fins 141 on the surface of the lower end seat 123 to form a heat dissipation channel, the number of the heat dissipation channels is equal to that of the air inlet holes 114, and the positions correspond, and the heat dissipation channels are connected with the outside of the outer shell 111 through the air inlet holes 114.

[0054] It should be noted that the heat sink 141 described in this embodiment is L-shaped.

[0055] It should also be noted that, in order to improve the insulation effect, insulating pads are respectively provided on the top and bottom of the heat conducting ring 142 .

[0056] It can be extended that, in order to further improve the heat dissipation effect of the heat sink 141, a slot (not shown in the figure) can be opened on the surface of the outer shell 111 at a position corresponding to the position of the heat sink 141, and one end of the heat sink 141 passes through the outside of the outer shell 111 through the slot, so as to improve the heat dissipation effect of the heat sink 141 by increasing the heat dissipation area and surface air flow rate of the heat sink 141, wherein the heat sink 141 can protrude from the surface of the outer shell 111 or be in the same plane with the surface of the outer shell 111.

[0057] Specifically, when the iron core 135 generates heat, the heat is dispersed to the multiple groups of heat sinks 141 through the thermally conductive silicone 143, and the multiple groups of heat sinks 141 are used to dissipate heat, wherein the head and tail ends of the heat dissipation channel are respectively connected to the air inlet 114 and the interior of the fan heat dissipation assembly 2, so that air flow inside the heat dissipation channel can be achieved, the heat can be dissipated, and the use effect is good.

[0058] In one embodiment of the present invention, Figure 1 and Figure 6 As shown, the fan heat dissipation assembly 2 includes a heat dissipation shell 21, a thermostat 22, an exhaust hole plate 23, a heat dissipation fan 24 and a temperature sensor 25, wherein the heat dissipation shell 21 is threadedly connected to the top of the outer shell 111 and is connected to the inside of the outer shell 111; the thermostat 22 is fixedly connected to the surface of the heat dissipation shell 21; the exhaust hole plate 23, the heat dissipation fan 24 and the temperature sensor 25 are arranged on the inner wall of the heat dissipation shell 21 in sequence from top to bottom; one end of the temperature sensor 25 penetrates into the inside of the outer shell 111 and contacts the surface of the heat sink 141; the thermostat 22 is electrically connected to the heat dissipation fan 24 and the temperature sensor 25 respectively.

[0059] It should be noted that the temperature controller 22, the heat dissipation fan 24 and the temperature sensor 25 described in this embodiment are all prior arts, and thus will not be described in detail here.

[0060] It should also be noted that a dustproof net is provided inside the exhaust hole plate 23 .

[0061] Specifically, when the temperature sensor 25 detects that the temperature on the surface of the heat sink 141 reaches a set value, the thermostat 22 controls the operation of the heat dissipation fan 24, and the heat dissipation fan 24 operates to extract air between the inner shell mechanism 12 and the outer shell 111. The air enters the space between the inner shell mechanism 12 and the outer shell 111 from the air inlet 114, and is finally discharged to the outside of the heat dissipation shell 21 through the exhaust hole plate 23. The air flow rate on the surface of the heat sink 141 is accelerated by the heat dissipation fan 24, thereby effectively improving the heat dissipation effect of the heat sink 141, and the use effect is good.

[0062] In one embodiment of the present invention, Figure 1 and Figure 7 As shown, the connecting assembly 3 includes a connecting shell 31, a high-voltage electric socket 32 ​​and a conductive spring 33, wherein the connecting shell 31 is threadedly connected to the bottom of the outer shell 111 and is connected to the inside of the outer shell 111; the high-voltage electric socket 32 ​​is fixedly connected to the inner wall of the connecting shell 31, and the high-voltage output end of the secondary winding 134 is connected to the top of the high-voltage electric socket 32; the conductive spring 33 is fixedly connected to the bottom of the high-voltage electric socket 32, and one end of the spark plug is threadedly connected to the bottom of the connecting shell 31 and is in contact with one end of the conductive spring 33.

[0063] Specifically, the spark plug is connected to the bottom of the connecting shell 31 and one end of the spark plug is abutted against one end of the conductive spring 33. The high voltage extended from the secondary winding 134 is transmitted to the spark plug through the high voltage socket 32 ​​and the conductive spring 33.

[0064] In summary, the high-stability and high-life pen-type ignition coil of the embodiment of the utility model can independently determine the heat level generated during the operation of the ignition coil, and perform heat dissipation processing in time accordingly, thereby effectively preventing the ignition coil from overheating and significantly improving the stability and service life of the ignition coil.

[0065] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0067] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A high-stability and long-life pen-type ignition coil, characterized in that: It comprises a housing component (1), a fan heat dissipation component (2) and a connection component (3), wherein: The housing assembly (1) comprises an outer housing mechanism (11), an inner housing mechanism (12), a winding mechanism (13) and a heat dissipation fin mechanism (14), wherein: The inner shell mechanism (12) is arranged inside the outer shell mechanism (11), the winding mechanism (13) is arranged inside the inner shell mechanism (12), the heat dissipation fin mechanism (14) is arranged on the surface of the inner shell mechanism (12) and is in contact with the inner wall of the outer shell mechanism (11), and one end of the heat dissipation fin mechanism (14) penetrates into the inner shell mechanism (12) and is connected to one end of the winding mechanism (13); The fan heat dissipation component (2) and the connection component (3) are respectively arranged at the top of the shell mechanism (11) and the bottom of the shell mechanism (11), and are connected to each other; one end of the connection component (3) is connected to one end of the winding mechanism (13), and the other end of the connection component (3) is connected to one end of an external spark plug.

2. The high-stability and long-life pen-type ignition coil according to claim 1 is characterized in that: The shell mechanism (11) comprises an outer shell (111), a plug connector (112), a fixing seat (113) and an air inlet (114), wherein: The plug connector (112) is fixedly connected to the upper end surface of the outer shell (111) and is communicated with the interior of the outer shell (111); The fixing seat (113) is threadedly connected to the middle end surface of the outer shell (111); The air inlet holes (114) are evenly arranged at the bottom of the outer shell (111) and are in communication with the interior of the outer shell (111).

3. The high-stability and long-life pen-type ignition coil according to claim 2 is characterized in that: The inner shell mechanism (12) comprises an upper end seat (121), a middle cylinder (122) and a lower end seat (123), wherein: The lower end seat (123) is clamped and fixed to the inner wall of the outer shell (111); The middle tube (122) is threadedly connected to the top of the lower end seat (123), and one end of the middle tube (122) passes through the bottom of the lower end seat (123); The upper end seat (121) is threadedly connected to the top of the middle tube (122) and is communicated with the interior of the middle tube (122); A positioning shaft is provided on the top of the upper end seat (121) and is slidably connected to the inner wall of one end of the fan heat dissipation assembly (2).

4. The high-stability and long-life pen-type ignition coil according to claim 3 is characterized in that: The winding mechanism (13) comprises a primary wire holder (131), a primary winding (132), a secondary wire holder (133), a secondary winding (134), an iron core (135) and an insulating porcelain cup (136), wherein: The primary wire seat (131) is threadedly connected to the inner wall of the middle cylinder (122); The primary winding (132) is wound on the surface of the primary wire holder (131); The secondary wire seat (133) is threadedly connected to the inner wall of the primary wire seat (131); The secondary winding (134) is wound on the surface of the secondary wire holder (133) and is located inside the primary wire holder (131); The iron core (135) is arranged on the inner wall of the secondary wire seat (133); One end of the primary winding (132) is connected to the plug connector (112), and the other end of the primary winding (132) is connected to one end of the secondary winding (134); The two ends of the iron core (135) respectively pass through the top of the secondary wire seat (133) and the bottom of the secondary wire seat (133), and the insulating porcelain cup (136) is respectively arranged on the inner wall of the middle cylinder (122) and the inner wall of the upper end seat (121), and is in contact with the two ends of the iron core (135).

5. The high-stability and long-life pen-type ignition coil according to claim 4 is characterized in that: The heat dissipation fin mechanism (14) comprises a heat dissipation fin (141), a heat conductive ring (142) and heat conductive silica gel (143), wherein: The heat-conducting ring (142) is arranged on the inner wall of the upper end seat (121) and is sleeved on the outer side of the iron core (135); the inner wall of the heat-conducting ring (142) and the outer surface of the iron core (135) are connected via the heat-conducting silica gel (143); The heat sink (141) is evenly arranged on the surface of the upper end seat (121) and fits with the inner wall of the outer shell (111); One end of the heat sink (141) penetrates into the interior of the upper end seat (121) and fits against the surface of the heat conducting ring (142), and the other end of the heat sink (141) is abutted and fixed on the surface of the lower end seat (123); The space between two adjacent groups of the heat sinks (141) forms a heat dissipation channel, the number of the heat dissipation channels is equal to that of the air inlet holes (114), and the positions thereof correspond, and the heat dissipation channel is connected to the outside of the outer shell (111) through the air inlet holes (114).

6. The high-stability and long-life pen-type ignition coil according to claim 5 is characterized in that: The fan heat dissipation assembly (2) comprises a heat dissipation housing (21), a temperature controller (22), an exhaust hole plate (23), a heat dissipation fan (24) and a temperature sensor (25), wherein: The heat dissipation housing (21) is threadedly connected to the top of the outer housing (111) and is in communication with the interior of the outer housing (111); The temperature controller (22) is fixedly connected to the surface of the heat dissipation housing (21); The exhaust hole plate (23), the heat dissipation fan (24) and the temperature sensor (25) are arranged in order from top to bottom on the inner wall of the heat dissipation housing (21); One end of the temperature sensor (25) penetrates into the interior of the outer shell (111) and contacts the surface of the heat sink (141); The temperature controller (22) is electrically connected to the heat dissipation fan (24) and the temperature sensor (25) respectively.

7. The high-stability and long-life pen-type ignition coil according to claim 4 is characterized in that: The connection assembly (3) comprises a connection housing (31), a high-voltage electric socket (32) and a conductive spring (33), wherein: The connecting shell (31) is threadedly connected to the bottom of the outer shell (111) and communicates with the interior of the outer shell (111); The high-voltage electric seat (32) is fixedly connected to the inner wall of the connecting shell (31), and the high-voltage output end of the secondary winding (134) is connected to the top of the high-voltage electric seat (32); The conductive spring (33) is fixedly connected to the bottom of the high-voltage electric seat (32); one end of the spark plug is threadedly connected to the bottom of the connecting shell (31) and is in contact with one end of the conductive spring (33).

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