High-durability mechanical snail electric horn

Abstract

The utility model relates to a high-durability mechanical snail electric horn which comprises a shell and a diaphragm, a movable iron core, a static iron core, a movable contact arm, a static contact arm, a coil and an assembly panel are arranged in the shell, and the static contact arm and the movable contact arm are arranged on the assembly panel through a riveting column A; a capacitor clamping seat, two capacitor pin clamping positions and two coil pin grooves are further arranged on the upper surface of the assembly panel, an arc extinguishing capacitor is arranged in the capacitor clamping seat, two coil pins extend to the upper part of the assembly panel and are respectively arranged in the corresponding coil pin grooves, two capacitor pins of the capacitor are respectively clamped in the corresponding capacitor pin clamping positions, and the arc extinguishing capacitor is arranged in the capacitor clamping seat. The movable contact arm is pressed on the first coil pin, the first capacitor pin is pressed by the conductive pressing sheet and is in conductive connection with the first coil pin, and the second capacitor pin is pressed on the second coil pin by the riveting column B to be in contact and conductive, so that arc extinction capacitors are connected in parallel at two ends of the coil. The capacitor mounting and fixing structure is simple, and the arc-extinguishing effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electric horns, in particular to a high-durability mechanical snail electric horn. Background Art

[0002] In the existing automobile electric horn structure, since the coil is an inductive load, a high reverse voltage will be generated in the circuit at the moment of connection and disconnection. The internal contacts of the product will have a large arc at the moment of each cycle of connection and disconnection. As the number of durability increases, the internal contacts of the product will be significantly consumed after high-temperature arc ablation, and the product may fail due to the failure of the contacts to conduct. It is impossible to meet the high durability technical requirements of individual products, and the capacitors in the electric horn structure are generally not well installed and fixed. Utility Model Content

[0003] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a high-durability mechanical snail electric horn, the arc-extinguishing capacitor has a simple installation and fixing structure and a good arc-extinguishing effect.

[0004] The technical solution of the utility model is as follows: a high-durability mechanical snail electric horn comprises a shell and a diaphragm. A moving iron core and a static iron core, a moving contact arm and a static contact arm, a coil and an assembly panel are arranged in the shell. The static contact arm and the moving contact arm are installed on the assembly panel by a rivet column A. A capacitor holder is also arranged on the upper surface of the assembly panel. An arc-extinguishing capacitor is mounted in the capacitor holder. Two capacitor pin positions and two coil pin grooves are respectively arranged on the upper surface of the assembly panel. The two coil pins of the coil extend to the top of the assembly panel and are respectively installed in the corresponding coil pin grooves. The two capacitor pins of the arc-extinguishing capacitor are respectively inserted into the corresponding capacitor pin positions. The moving contact arm is pressed on the first coil pin. The first capacitor pin is pressed by a conductive plate and forms a conductive connection with the first coil pin. The second capacitor pin is pressed on the second coil pin by a rivet column B to contact and conduct electricity, thereby realizing arc-extinguishing capacitors in parallel at both ends of the coil.

[0005] By adopting the above technical solution, a capacitor is connected in parallel at both ends of the coil, so that the magnetic energy generated by the coil and the electric energy generated by the capacitor can be converted into each other, thereby reducing the high voltage generated by the original coil at the moment of power cut off. The capacitor is used to absorb the reverse voltage generated by the coil during operation, that is, the contact arc of the electric horn is eliminated or weakened, the contacts are protected, and the working life of the electric horn is increased.

[0006] The utility model sets a capacitor holder on the assembly panel, and the arc-extinguishing capacitor can be directly installed in the capacitor holder during assembly, and two capacitor pins of the arc-extinguishing capacitor are bent and inserted into the capacitor pin positions respectively, and two coil pin grooves are set on the assembly panel, and the dynamic and static contacts can be connected in series with the coil through contact conduction, and the arc-extinguishing capacitor is connected in parallel at both ends of the coil. The utility model has the advantages of simple structure, reasonable design, simple and continuous production process, low production cost, high reliability, etc.

[0007] Preferably, the capacitor pin is positioned in a shallow groove on the assembly panel, and the capacitor pin is inserted into the shallow groove to achieve positioning;

[0008] Alternatively, the capacitor pin clamping position is formed by a pair of clamping protrusions located on the assembly panel, and the capacitor pin is clamped between the pair of clamping protrusions to achieve positioning. The capacitor pin clamping position structure is diversified, and the clamping operation is also simple.

[0009] Preferably, the capacitor holder is located at the front end of the assembly panel and is arranged between the capacitor pin positions on both sides. The two coil pins of the coil extend forward, and the two capacitor pins of the arc-extinguishing capacitor extend backward. The assembly panel has multiple pairs of protrusions on one side of the capacitor holder, and the first capacitor pin is positioned by the multiple pairs of protrusions. The conductive sheet extends to the gap between two adjacent pairs of protrusions. The assembly panel has a shallow groove on the other side of the capacitor holder, and the second capacitor pin is installed in the shallow groove. The two capacitor pin positioning structures are selected and used as needed; and the conductive sheet extends to the gap between the two pairs of protrusions, and can also be positioned.

[0010] Preferably, the entrance end of the shallow groove is in a "V" shape, and the two sides of the tail end thereof are provided with a clamping protrusion. The two clamping protrusions have a good effect of positioning the pin.

[0011] Preferably, the opposing surfaces of the first pair of clamping protrusions are inclined surfaces or arc surfaces, thereby forming a "V"-shaped entrance. The "V"-shaped entrance facilitates the entry of the capacitor pins.

[0012] Preferably, the conductive voltage plate is integrally arranged on the movable contact arm; or the conductive voltage plate is separately arranged above the movable contact arm, and the conductive voltage plate is pressed against the movable contact arm by the rivet column A for contact and conduction.

[0013] Preferably, the assembly panel has through holes A and B for rivet studs A and B to pass through respectively, the end of the first coil pin is bent around the rivet stud A to form a U-shaped head, and the front end surface of the assembly panel also has a barb for hooking the U-shaped head; the through hole B is close to the second coil pin and the second capacitor pin. The through hole is used for loading the rivet stud, and the installation position of the rivet stud is convenient for forming a pressure against the capacitor pin, the moving contact arm is at both ends of the U-shaped head, and the barb is convenient for hooking the U-shaped head to prevent it from moving up.

[0014] Preferably, the capacitor holder is surrounded by the limiting plates on both sides, the front plate and the rear plate to form a receiving groove, the limiting plates also have a protrusion on the inner side that abuts against the outer periphery of the capacitor, and the assembly panel is provided with a hole at the bottom of the corresponding receiving groove. The capacitor holder is surrounded by the limiting plates and the end plates on the periphery, the protrusion on the inner side of the limiting plates facilitates the contact and positioning with the outer periphery of the capacitor, and the hole can also facilitate the heat dissipation of the capacitor.

[0015] Preferably, the coil is wound on a coil frame, and the assembly panel is fixed or integrally formed on the upper end of the coil frame.

[0016] Preferably, one end of the static contact arm, the insulating sheet and one end of the movable contact arm are riveted to the assembly panel through rivet studs A and fixed to the housing, and the other end of the static contact arm is also fixedly connected to the housing through an adjusting screw and a rubber spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a specific embodiment of the utility model;

[0018] Figure 2 It is one of the cross-sectional views of a specific embodiment of the utility model;

[0019] Figure 3 This is the second cross-sectional view of a specific embodiment of the utility model;

[0020] Figure 4 This is a diagram showing the internal structure of a housing according to a specific embodiment of the utility model;

[0021] Figure 5 It is an exploded view of the structure between the static contact arm and the movable contact arm in a specific embodiment of the utility model;

[0022] Figure 6 It is a structural diagram of the assembly panel in a specific embodiment of the utility model;

[0023] Figure 7 It is a structural diagram of an assembly panel in a specific embodiment of the utility model;

[0024] Figure 8 This is a structural diagram of a coil in a specific embodiment of the utility model;

[0025] Fig. 9 The following is a circuit diagram of a specific embodiment of the utility model.

[0026] In the figure: housing 1, diaphragm 2, moving iron core 31, static iron core 32, moving contact arm 41, moving contact 411, static contact arm 42, static contact 421, coil 5, first coil pin 51, second coil pin 52, assembly panel 6, coil skeleton 11, insulating sheet 12, adjusting screw 13, rubber spring 14, locking nut 16, vibration-proof sheet 17, rivet stud A7, rivet stud B10, arc-extinguishing capacitor 8, first Capacitor pin 81, second capacitor pin 82, capacitor pin position 612, coil pin groove 613, conductive voltage plate 9, shallow groove A, convex B, through hole A61a1, through hole B61a2, U-shaped head 511, barb 61a3, capacitor holder 611, limit plate 6111, front end plate 6112, rear end plate 6113, accommodating groove 611a, protrusion 61111, hole position 611b, speaker 15. DETAILED DESCRIPTION

[0027] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-9As shown, a high-durability mechanical snail electric horn of the utility model comprises a shell 1 with an opening, and a speaker 15, a diaphragm 2 is arranged at the opening of the shell 1, and the diaphragm is connected to the outer ring of the shell by edge sealing, a moving iron core 31 and a static iron core 32, a moving contact arm 41 and a static contact arm 42, a coil 5 and an assembly panel 6 are arranged in the shell 1, the moving iron core 31 is fixedly connected to the diaphragm 2, the coil 5 is wound on the coil skeleton 11, and the assembly panel 6 is fixed or integrally formed on the upper end of the coil skeleton 11, The coil skeleton 11 is sleeved on the outside of the static iron core 32, the lower end of the static iron core 32 passes through the shell 1, and the end is connected to the vibration-proof plate 17 through the locking nut 16, one end of the static contact arm 42, the insulating sheet 12 and the moving contact arm 41 are riveted to the assembly panel 6 through the rivet column A7, and are fixed to the shell 1, and the other end of the static contact arm 42 is also fixedly connected to the shell 1 through the adjusting screw 13 and the rubber spring 14, the lower end of the rivet column A7 passes through the assembly panel, extends to the outside of the shell and the end is riveted to the plug seat, the moving contact The other end of the point arm 41 has a moving contact 411, and the middle of the static contact arm 42 has a static contact 421. The upper surface of the assembly panel 6 is also provided with a capacitor holder 611, and an arc-extinguishing capacitor 8 is mounted in the capacitor holder 611. The arc-extinguishing capacitor 8 is a non-polar aluminum electrolytic capacitor. The upper surface of the assembly panel 6 is respectively provided with two capacitor pin positions 612 and two coil pin grooves 613. The two coil pins of the coil 5 extend to the top of the assembly panel 6 and are respectively installed in the corresponding coil pin grooves 613. In the figure, the two capacitor pins of the arc-extinguishing capacitor 8 are respectively inserted into the corresponding capacitor pin positions 612, the moving contact arm 41 is pressed on the first coil pin 51, the first capacitor pin 81 is pressed by the conductive voltage plate 9, the first capacitor pin 81 is conductively connected with the first coil pin 51 through the conductive voltage plate 9 and the moving contact arm 41, and the second capacitor pin 82 is pressed on the second coil pin 52 by the rivet column B10 to contact and conduct electricity, so as to realize the arc-extinguishing capacitor 8 in parallel at both ends of the coil 5, and the moving and static contacts are connected in series with the coil.

[0029] Specifically, the capacitor pin position 612 is a shallow groove A on the assembly panel 6, and the capacitor pin is inserted into the shallow groove A to achieve positioning;

[0030] Alternatively, the capacitor pin locking position 612 is formed by a pair of locking protrusions B located on the assembly panel 6, and the capacitor pin is locked between the pair of locking protrusions B to achieve positioning.

[0031] Specifically, the capacitor holder 611 is located at the front end of the assembly panel 6 and is arranged between the capacitor pin positions 612 on both sides. The two coil pins of the coil 5 are extended forward, and the two capacitor pins of the arc-extinguishing capacitor 8 are extended backward. The assembly panel 6 has multiple pairs of protrusions B on one side of the capacitor holder 611, and the first capacitor pin 81 is positioned by the multiple pairs of protrusions B. The conductive plate 9 extends to the gap between the two adjacent pairs of protrusions B; the assembly panel 6 has a shallow groove A on the other side of the capacitor holder 611, and the second capacitor pin 82 is installed in the shallow groove A.

[0032] Specifically, the entrance end of the shallow groove A is in a "V" shape, and both sides of the tail end thereof are provided with protrusions.

[0033] Specifically, the opposing surfaces of the first pair of clamping protrusions B are inclined surfaces or arc surfaces B1, thereby forming a "V"-shaped inlet.

[0034] Specifically, the conductive voltage plate 9 is integrally provided on the movable contact arm 41; or the conductive voltage plate 9 is separately provided above the movable contact arm 41, and the conductive voltage plate 9 is pressed against the movable contact arm 41 by the rivet column A7 for contact and conduction.

[0035] Specifically, the assembly panel 6 has a through hole A61a1 and a through hole B61a2 for the rivet columns A and B to pass through respectively, the end of the first coil pin 51 is bent around the rivet column A7 to form a U-shaped head 511, and the front end surface of the assembly panel 6 also has a barb 61a3 for hooking the U-shaped head 511; the through hole B61a2 is close to the second coil pin 52 and the second capacitor pin 82.

[0036] Specifically, the capacitor holder 611 is surrounded by a accommodating groove 611a by limiting plates 6111 located on both sides, a front end plate 6112 and a rear end plate 6113. The inner side of the limiting plate 6111 also has a protrusion 61111 that is against the outer periphery of the capacitor 8. A hole 611b is opened on the assembly panel 6 at the bottom of the corresponding accommodating groove 611a.

[0037] When the utility model product is installed, during assembly, the coil 5 is wound around the coil frame 11, and the two coil pins of the coil 5 extend to the top of the assembly panel 6 and extend forward to be inserted into the corresponding coil pin groove 613, and then the arc-extinguishing capacitor 8 is clamped in the capacitor clamping seat 611, and the two capacitor pins of the arc-extinguishing capacitor 8 are bent backwards and clamped into the capacitor pin clamping position 612, and multiple pairs of clamping convex B are used to position the first capacitor pin 81, and then the moving contact arm 41, the conductive plate 9, the insulating plate 8, and the static The contact arm 42 is then installed with a rivet post A7, and the moving contact arm 41 is pressed on the first coil pin 621, and the conductive voltage plate 9 extends to the gap between the two adjacent pairs of card protrusions B and is pressed on the first capacitor pin 81; the second capacitor pin 82 is installed in the shallow groove A and placed on the second coil pin 52, and then installed with a rivet post B, so that the second capacitor pin 82 and the second coil pin 52 are in contact and conductive, and the moving and static contacts are connected in series with the coil, and the arc-extinguishing capacitor is connected in parallel at both ends of the coil. The utility model has the advantages of simple structure, reasonable design, simple and continuous production process, low production cost, high reliability, etc.; two rivet posts are installed on both sides of the capacitor, and a large space can be used for installation, and it is more convenient to install and has a good contact and conductive effect.

[0038] By connecting a capacitor in parallel at both ends of the coil, the magnetic energy generated by the coil and the electrical energy generated by the capacitor can be converted into each other, thereby reducing the high voltage generated by the original coil at the moment the power is cut off. The capacitor is used to absorb the reverse voltage generated by the coil during operation, which eliminates or weakens the contact arc of the electric horn, protects the contacts, and increases the working life of the electric horn.

[0039] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A high-durability mechanical snail electric horn, comprising a housing (1) and a diaphragm (2), wherein a moving iron core (31) and a stationary iron core (32), a moving contact arm (41) and a stationary contact arm (42), a coil (5) and an assembly panel (6) are arranged in the housing (1), and the stationary contact arm (42) and the moving contact arm (41) are mounted on the assembly panel (6) by a rivet column A (7), characterized in that: The upper surface of the assembly panel (6) is further provided with a capacitor holder (611), two capacitor pin positions (612) and two coil pin grooves (613); an arc-extinguishing capacitor (8) is mounted in the capacitor holder (611); two coil pins of the coil (5) extend to the top of the assembly panel (6) and are respectively inserted into corresponding coil pin grooves (613); two capacitor pins of the arc-extinguishing capacitor (8) are respectively inserted into corresponding capacitor pin positions (612); the movable contact arm (41) is pressed onto the first coil pin (51); the first capacitor pin (81) is pressed by a conductive plate (9) and is electrically connected to the first coil pin (51); the second capacitor pin (82) is pressed onto the second coil pin (52) by a rivet column B (10) to contact and conduct electricity, thereby realizing parallel connection of the arc-extinguishing capacitor (8) at both ends of the coil (5).

2. The high-durability mechanical snail electric horn according to claim 1, characterized in that: The capacitor pin locking position (612) is a shallow groove (A) on the assembly panel (6), and the capacitor pin is inserted into the shallow groove (A) to achieve positioning; or the capacitor pin locking position (612) is formed by a pair of locking protrusions (B) located on the assembly panel (6), and the capacitor pin is locked between the pair of locking protrusions (B) to achieve positioning.

3. The high-durability mechanical snail electric horn according to claim 2, characterized in that: The capacitor holder (611) is located at the front end of the assembly panel (6) and is arranged between the capacitor pin holders (612) on both sides; the two coil pins of the coil (5) both extend forward, and the two capacitor pins of the arc-extinguishing capacitor (8) both extend backward; the assembly panel (6) has a plurality of pairs of protrusions (B) on one side of the capacitor holder (611); the first capacitor pin (81) is positioned by the plurality of pairs of protrusions (B); the conductive plate (9) extends to the gap between two adjacent pairs of protrusions (B); and the assembly panel (6) has a shallow groove (A) on the other side of the capacitor holder (611); the second capacitor pin (82) is inserted into the shallow groove (A).

4. The high-durability mechanical snail electric horn according to claim 3, characterized in that: The entrance end of the shallow groove (A) is "V"-shaped, and there are protrusions on both sides of its tail end.

5. The high-durability mechanical snail electric horn according to claim 3, characterized in that: The opposing surfaces of the first pair of protrusions (B) are inclined surfaces or arc surfaces (B1), thereby forming a "V"-shaped entrance.

6. A high-durability mechanical snail electric horn according to any one of claims 1 to 5, characterized in that: The conductive voltage plate (9) is integrally arranged on the movable contact arm (41); or the conductive voltage plate (9) is separately arranged above the movable contact arm (41), and the conductive voltage plate (9) is pressed against the movable contact arm (41) by the rivet column A (7) to achieve contact and conduction.

7. A high-durability mechanical snail electric horn according to any one of claims 3 to 5, characterized in that: The assembly panel (6) is provided with a through hole A (61a1) and a through hole B (61a2) for the rivet posts A and B to pass through respectively; the end of the first coil pin (51) is bent around the rivet post A (7) to form a U-shaped head (511); the front end surface of the assembly panel (6) is also provided with a barb (61a3) for hooking the U-shaped head (511); the through hole B (61a2) is close to the second coil pin (52) and the second capacitor pin (82).

8. A high-durability mechanical snail electric horn according to any one of claims 1-5, characterized in that: The capacitor holder (611) is formed by limiting plates (6111) located on both sides, a front plate (6112) and a rear plate (6113) to form a receiving groove (611a); the inner side of the limiting plate (6111) also has a protrusion (61111) that is abutted against the outer periphery of the arc-extinguishing capacitor (8); and a hole (611b) is provided on the assembly panel (6) at the bottom of the corresponding receiving groove (611a).

9. A high-durability mechanical snail electric horn according to any one of claims 1-5, characterized in that: The coil (5) is wound on a coil frame (11), and the assembly panel (6) is fixed to or integrally formed on the upper end of the coil frame (11).

10. A high-durability mechanical snail electric horn according to any one of claims 1-5, characterized in that: One end of the stationary contact arm (42), the insulating sheet (12) and one end of the moving contact arm (41) are riveted to the assembly panel (6) via a rivet column A (7) and fixed to the housing (1); the other end of the stationary contact arm (42) is also fixedly connected to the housing (1) via an adjusting screw (13) and a rubber spring (14).

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