Suppression of high frequency oscillations in ignition coil

Abstract

This utility model discloses an ignition coil for suppressing high-frequency vibration, comprising a coil body, a housing, a vibration-damping ring groove, a vibration-damping sleeve, elastic buffer pillars, vibration-damping springs, a locking assembly, an upper locking block, a lower locking block, a screw hole, a hexagonal bolt, and a hexagonal nut. The coil body includes a housing, the outer surface of which has a vibration-damping ring groove. A vibration-damping sleeve is slidably connected within the vibration-damping ring groove. Several elastic buffer pillars are provided between the top of the vibration-damping sleeve and the vibration-damping ring groove, and each elastic buffer pillar has a vibration-damping spring fitted on its outer surface. The locking assembly includes an upper locking block, a lower locking block, a screw hole, a hexagonal bolt, and a hexagonal nut. The upper locking block is located on the side wall of the housing, and the lower locking block is located on the top side wall of the vibration-damping sleeve. This utility model can perform vibration damping and stress relief in multiple directions, thereby comprehensively relieving stress on the ignition coil body and extending the service life of the ignition coil.

Description

Technical Field

[0001] This utility model relates to the technical field of ignition coils, and in particular to the technical field of ignition coils for suppressing high-frequency vibration. Background Technology

[0002] The ignition coil is a transformer in a car's ignition system that converts low-voltage electricity into high-voltage electricity. Its function is to provide sufficient high-voltage electrical energy to the spark plugs to generate an electric spark.

[0003] Currently, the internal electrical components of traditional ignition coils are connected in a relatively complex manner, which can easily affect the product's performance.

[0004] To address the problems mentioned above, for example, application number CN201620861549.4 discloses an ignition coil, including a housing and a connector mounted on the housing. The connector has a circuit board, and the housing contains a coil assembly. The coil assembly includes an iron core, a primary frame, a primary coil, a secondary frame, and a secondary coil. The primary frame has multiple pressure blocks facing the connector, and each pressure block has a spring clip. The circuit board has corresponding slots. The input end of the primary coil bypasses the spring clip and is pressed into the slot during the installation of the coil assembly into the housing. The top of the spring clip is elastically compressed and resets after passing through the slot, thus securing the input end of the primary coil within the slot. This product provides a reliable ignition coil connection, ensuring the product's electrical performance.

[0005] However, the aforementioned patent does not have a vibration reduction function. Since the ignition coil housing is fixed to the engine, when the engine vibrates, the ignition coil will also vibrate. When the ignition coil vibrates, it will apply pressure to the head of the screw through the fixed wing. At this time, the screw is very easy to loosen outward along the thread track of the screw hole under the action of vibration, which will cause the ignition coil to loosen, and thus easily cause cylinder misfiring, which will seriously affect the operation of the engine.

[0006] To address the problems mentioned above, for example, application number CN202223399325.0 discloses a vibration-damping automotive ignition coil, including a housing, a connecting end located on the lower side of the housing, and a power connector located on the left side wall of the housing. The lower end of the housing is provided with a sealing head, and the sealing head is fitted with a matching sealing ring. The upper right outer wall of the housing is provided with a fixing wing, and the fixing wing has a through hole. The upper and lower damping pads can effectively buffer the vibration force transmitted to the fixing wing, and the presence of the damping spring can further buffer the vibration force on the fixing wing, effectively eliminating the impact of vibration force on the fixing wing, thereby preventing the screw from loosening due to vibration of the fixing wing. Furthermore, the upper and lower damping sleeves can effectively share the vibration force on the screw used to fix the fixing wing, and the damping spring can effectively buffer the vibration force on the upper and lower damping sleeves, maximizing the impact of vibration force on the screw used to fix the fixing wing, thus achieving the vibration-damping effect.

[0007] However, the aforementioned patents still have the following drawbacks:

[0008] Although the aforementioned patent can effectively buffer the vibration force on the upper and lower damping sleeves using damping springs, it does not have multi-directional damping function. The vibration protection method is too limited and cannot fully relieve the force on the ignition coil. The impact of vibration on the ignition coil is still very large, which will affect the tightness of the ignition coil installation. Summary of the Invention

[0009] The purpose of this invention is to solve the problems in the prior art by proposing an ignition coil that suppresses high-frequency vibration and can reduce vibration and relieve stress in multiple directions, thereby comprehensively relieving stress on the ignition coil body and extending the service life of the ignition coil.

[0010] To achieve the above objectives, this utility model proposes an ignition coil for suppressing high-frequency vibration, comprising a coil body, a housing, a damping ring groove, a damping sleeve, elastic buffer pillars, damping springs, a locking assembly, an upper locking block, a lower locking block, screw holes, hexagonal bolts, and hexagonal nuts. The coil body includes a housing, the outer surface of which has a damping ring groove. A damping sleeve is slidably connected within the damping ring groove. Several elastic buffer pillars are provided between the top of the damping sleeve and the damping ring groove, and each elastic buffer pillar has a damping spring fitted on its outer surface. The locking assembly includes an upper locking block, a lower locking block, screw holes, hexagonal bolts, and hexagonal nuts. The upper locking block is located on the side wall of the housing, and the lower locking block is located on the top side wall of the damping sleeve, with the upper and lower locking blocks corresponding vertically. Both the upper and lower locking blocks have screw holes, and a hexagonal bolt is threaded into the screw holes. A hexagonal nut is threaded onto the outer wall of the end of the hexagonal bolt.

[0011] Preferably, the elastic buffer columns are distributed in a ring at equal intervals, with the top end of the elastic buffer column connected to the bottom of the housing and the bottom end of the elastic buffer column connected to the top of the vibration damping sleeve.

[0012] Preferably, the vibration damping sleeve has an annular hollow sealing cavity inside, and at least three force-relieving metal parts are provided inside the annular hollow sealing cavity.

[0013] Preferably, the stress-relieving metal component is a polyhedral metal block with obtuse-angled edges.

[0014] Preferably, the annular hollow sealed cavity has a plurality of collision protrusions inside its cavity wall, which are used in conjunction with the polyhedral metal block.

[0015] Preferably, the annular hollow sealed cavity is further provided with a number of damping plates inside the cavity wall, and the damping plates are fixed in the critical collision area of ​​the cavity wall.

[0016] At least one groove is provided in the vibration damping ring groove, and a high-damping elastic strip is embedded in the groove.

[0017] The beneficial effects of this utility model are:

[0018] This invention, through the combined action of a damping ring groove, a damping sleeve, an elastic buffer column, a damping spring, a polyhedral metal block, collision protrusions, and damping plates, can dampen and relieve force in multiple directions. By incorporating the elastic buffer column and damping spring, it can buffer and relieve force in the vertical direction of the ignition coil body. By incorporating the polyhedral metal block, collision protrusions, and damping plates, it can relieve force around the ignition coil body. This allows the housing to be subjected to impact over a wider range, reducing wear on the housing and increasing its tightness during use. Overall, it offers higher safety and practicality, thereby extending the service life of the ignition coil. Attached Figure Description

[0019] Figure 1 This is a front view of the ignition coil for suppressing high-frequency vibration according to this utility model;

[0020] Figure 2 This is a schematic diagram of the vibration damping ring groove of the ignition coil for suppressing high-frequency vibration according to this utility model;

[0021] Figure 3 This is a schematic diagram of the shock-absorbing sleeve for suppressing high-frequency vibration of the ignition coil according to this utility model;

[0022] Figure 4 This is a cross-sectional view of the shock-absorbing sleeve for suppressing high-frequency vibration ignition coils according to this utility model;

[0023] Figure 5 This is a schematic diagram of the hexagonal bolt for suppressing high-frequency vibration ignition coil according to this utility model;

[0024] In the diagram: 1-coil body, 101-shell, 2-damping ring groove, 201-groove, 202-high damping elastic strip, 3-damping sleeve, 301-annular hollow sealing cavity, 302-force relief metal part, 303-collision protrusion, 304-damping plate, 4-elastic buffer column, 5-damping spring, 6-locking assembly, 601-upper locking block, 602-lower locking block, 603-screw hole, 604-hexagonal bolt, 605-hexagonal nut. Detailed Implementation

[0025] See Figures 1 to 5 This utility model discloses an ignition coil for suppressing high-frequency vibration, comprising a coil body 1, a housing 101, a damping ring groove 2, a damping sleeve 3, elastic buffer pillars 4, a damping spring 5, a locking assembly 6, an upper locking block 601, a lower locking block 602, a screw hole 603, a hexagonal bolt 604, and a hexagonal nut 605. The coil body 1 includes a housing 101, the outer surface of which has a damping ring groove 2. A damping sleeve 3 is slidably connected within the damping ring groove 2. Several elastic buffer pillars 4 are provided between the top of the damping sleeve 3 and the damping ring groove 2. The outer surface of each elastic buffer pillar 4... Each component is fitted with a damping spring 5; the locking assembly 6 includes an upper locking block 601, a lower locking block 602, a screw hole 603, a hexagonal bolt 604, and a hexagonal nut 605. The upper locking block 601 is located on the side wall of the housing 101, and the lower locking block 602 is located on the top side wall of the damping sleeve 3. The upper locking block 601 and the lower locking block 602 are vertically aligned. Both the upper locking block 601 and the lower locking block 602 are provided with screw holes 603. A hexagonal bolt 604 is threaded into the screw hole 603. A hexagonal nut 605 is threaded onto the outer wall of the end of the hexagonal bolt 604.

[0026] When needed, the hex nut 605 is unscrewed from the hex bolt 604 using a wrench, and then the hex bolt 604 is unscrewed from the threaded hole 603, thereby releasing the vertical sliding performance of the shock absorber sleeve 3. When the engine is ignited, the energy generated will cause the housing 101 to vibrate. Through the elastic sliding between the housing 101 and the shock absorber sleeve 3, the vertical impact force is reduced. In addition, several elastic buffer pillars 4 and damping springs 5 ​​can reduce the impact force when the housing 101 shakes.

[0027] See Figure 2 The elastic buffer columns 4 are distributed in a ring at equal intervals. The top of the elastic buffer column 4 is connected to the bottom of the housing 101, and the bottom of the elastic buffer column 4 is connected to the top of the shock-absorbing sleeve 3. This allows for uniform vibration damping and ensures that the shock-absorbing sleeve 3 can slide up and down, so that the impact force can be gradually weakened, thereby achieving the effect of force relief.

[0028] See Figure 4 The shock-absorbing sleeve 3 has an annular hollow sealing cavity 301 inside, and at least three force-relieving metal parts 302 are provided inside the annular hollow sealing cavity 301.

[0029] See Figure 4 The force-relieving metal component 302 is a polyhedral metal block with obtuse-angled edges, thereby increasing the friction between the polyhedral metal block and the elastic damping sheet 304.

[0030] See Figure 4 The annular hollow sealed cavity 301 has a plurality of collision protrusions 303 inside its cavity wall. The collision protrusions 303 are used in conjunction with the polyhedral metal block. When the polyhedral metal block is driven by vibration to move irregularly in the annular hollow sealed cavity 301, it impacts the collision protrusions 303 in the cavity wall to generate plastic deformation energy, thereby reducing the rebound energy.

[0031] See Figure 4 The annular hollow sealed cavity 301 is also provided with a number of damping plates 304 inside the cavity wall. The damping plates 304 are fixed in the key collision area of ​​the cavity wall. When the polyhedral metal block moves, the edges slide and rub against the elastic damping plates 304, converting mechanical energy into heat energy and dissipating it through the cavity wall, thereby achieving the effect of multi-directional force relief.

[0032] See Figure 2 The vibration damping ring groove 2 has at least one groove 201, and a high-damping elastic strip 202 is embedded in the groove 201, so that the vibration wave can be repeatedly cut off by the high-damping elastic strip 202 when it is transmitted along the path of the groove 201, thereby further weakening the high-frequency resonance transmission efficiency.

[0033] The working process of this utility model:

[0034] In the operation of this utility model's high-frequency vibration suppression ignition coil, when needed, the hexagonal nut 605 is unscrewed from the hexagonal bolt 604 using a wrench, and then the hexagonal bolt 604 is unscrewed from the screw hole 603, thereby releasing the vertical sliding performance of the shock-absorbing sleeve 3. When the engine ignites, the energy generated causes the housing 101 to vibrate. Through the elastic sliding between the housing 101 and the shock-absorbing sleeve 3, the vertical impact force is reduced. Furthermore, several elastic buffer pillars 4 and damping springs 5 ​​can reduce the impact force when the housing 101 shakes. When the polyhedral metal block is driven by vibration to move irregularly in the annular hollow sealed cavity 301, it impacts the cavity wall and collision protrusions 303, generating plastic deformation energy, thereby reducing the rebound energy. When the edges of the polyhedral metal block slide and rub against the elastic damping sheet 304 during the movement, the mechanical energy is converted into heat energy and dissipated through the cavity wall, thereby achieving the effect of multi-directional force relief.

[0035] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0036] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A high frequency oscillation ignition coil, characterized by: The coil body (1) includes a housing (101), a damping ring groove (2), a damping sleeve (3), an elastic buffer column (4), a damping spring (5), a locking assembly (6), an upper locking block (601), a lower locking block (602), a screw hole (603), a hexagonal bolt (604), and a hexagonal nut (605). The coil body (1) includes a housing (101), and a damping ring groove (2) is provided on the outer surface of the housing (101). A damping sleeve (3) is slidably connected in the damping ring groove (2). Several elastic buffer columns (4) are provided between the top of the damping sleeve (3) and the damping ring groove (2). Each elastic buffer column (4) is fitted with a damping spring on its outer surface. Spring (5); The locking assembly (6) includes an upper locking block (601), a lower locking block (602), a screw hole (603), a hex bolt (604) and a hex nut (605). The upper locking block (601) is located on the side wall of the housing (101), and the lower locking block (602) is located on the top side wall of the shock-absorbing sleeve (3). The upper locking block (601) and the lower locking block (602) are vertically aligned. The upper locking block (601) and the lower locking block (602) are both provided with screw holes (603). The screw holes (603) are threaded together with hex bolts (604). The outer wall of the end of the hex bolt (604) is threaded with a hex nut (605).

2. The ignition coil for suppressing high-frequency vibration as described in claim 1, characterized in that: The elastic buffer columns (4) are distributed in a ring at equal intervals. The top of the elastic buffer column (4) is connected to the bottom of the shell (101), and the bottom of the elastic buffer column (4) is connected to the top of the shock-absorbing sleeve (3).

3. The ignition coil for suppressing high-frequency vibration as described in claim 1, characterized in that: The shock-absorbing sleeve (3) has an annular hollow sealing cavity (301) inside, and at least three force-relieving metal parts (302) are provided inside the annular hollow sealing cavity (301).

4. The ignition coil for suppressing high-frequency vibration as described in claim 3, characterized in that: The stress-relieving metal component (302) is a polyhedral metal block with obtuse-angled edges.

5. The ignition coil for suppressing high-frequency vibration as described in claim 4, characterized in that: The annular hollow sealed cavity (301) has a number of collision protrusions (303) inside its cavity wall, and the collision protrusions (303) are used in conjunction with the polyhedral metal block.

6. The ignition coil for suppressing high-frequency vibration as described in claim 3, characterized in that: The annular hollow sealed cavity (301) is further provided with a number of damping plates (304) inside the cavity wall, and the damping plates (304) are fixed in the critical collision area of ​​the cavity wall.

7. The ignition coil for suppressing high-frequency vibration as described in claim 1, characterized in that: At least one groove (201) is provided in the damping ring groove (2), and a high-damping elastic strip (202) is embedded in the groove (201).

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