Low-overload-force magnetic backseat power generation device

Abstract

The utility model discloses a low overload force magnetic backseat power generation device which comprises a coil framework, a magnetic core, a base, an upper spring, a balancing weight, a lower spring, a coil and a shell, the coil is wound in the middle of the coil framework, and the whole coil is installed in the shell; the coil framework is of a hollow structure, and the magnetic core, the base, the upper spring, the lower spring and the balancing weight are all installed in the coil framework. Wherein the base comprises a first base fixedly arranged on the lower portion of the magnetic core, a second base fixedly arranged on the upper portion of the balancing weight and a third base fixedly arranged on the lower portion of the balancing weight, and the balancing weight is suspended between the magnetic core and the bottom of the shell through the upper spring and the lower spring to form a buffering and energy storage component. The magnetic backseat motor is reasonable in design, effectively solves the problem that the magnetic backseat motor can output enough voltage and current in a low overload force environment, and simultaneously meets the safety insurance effect under the conditions of falling, vibration and the like.

Description

Technical Field

[0001] The utility model relates to a bomb-loaded physical power supply product used in a low overload environment, in particular to a low overload magnetic back-seat power generation device. Background Art

[0002] In missile-borne electronic control systems, a device is often used that utilizes the mechanical energy generated by the recoil when a projectile is fired, converts the mechanical energy into electrical energy to supply power to the load through the principle of electromagnetic induction.

[0003] In the prior art, the published patent document CN201521022189.0 records a magnetic back seat power generation device. For the existing magnetic back seat power generation device products, its basic structure is as follows: Figure 1 As shown, the magnetic core 3' moves downward under the action of recoil to cut the coil 4', and the magnetic field forms a loop through the pole piece and the housing 2', thereby generating an induced electromotive force in the coil 4' interlinked therewith, and then storing energy or generating current in the electric load connected therewith through the electrical connection line. Normally, the magnetic core 3' is adsorbed on the upper cover plate 1' by magnetic force, and has a certain resistance to impact, vibration, falling, etc. When the projectile is fired, the strong recoil overcomes the magnetic force of the magnetic core 3', driving the magnetic core 3' downward to generate an electromotive force in the coil.

[0004] The existing magnetic recoil power generation device usually cannot meet the safety requirements under the conditions of strong impact, vibration, falling, etc. Excessive impact and load will directly damage the structure of the product. At the same time, the existing magnetic recoil power generation device cannot meet the requirements of working under low overload environment and cannot complete the output of voltage and current under low overload. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a low overload magnetic backrest power generation device which has a high safety insurance effect and can still work normally under a low overload environment.

[0006] To achieve the above-mentioned purpose, the utility model discloses a low-overload magnetic backseat power generation device, comprising a coil skeleton, a magnetic core, a base, an upper spring, a counterweight, a lower spring, a coil, and a shell. The coil is wound around the middle of the coil skeleton and is installed as a whole inside the shell. The coil skeleton is a hollow structure, and the magnetic core, the base, the upper spring, the lower spring, and the counterweight are all installed inside the coil skeleton. The base comprises a first base fixedly arranged at the bottom of the magnetic core, a second base fixedly arranged at the top of the counterweight, and a third base fixedly arranged at the bottom of the counterweight. The counterweight is suspended between the magnetic core and the bottom of the shell by the upper spring and the lower spring to form a buffer and energy storage component.

[0007] Furthermore, an upper spring is arranged between the first base and the second base, and a lower spring is arranged between the third base and the bottom of the shell.

[0008] Furthermore, the stiffness of the upper spring is greater than the stiffness of the lower spring.

[0009] Furthermore, the weight of the counterweight block is greater than the weight of the magnetic core.

[0010] Furthermore, a cover plate is provided on the shell, and the lower spring, the third base, the counterweight, the second base, the upper spring, the first base, and the magnetic core are installed in sequence and pressed by the cover plate.

[0011] Furthermore, a set gap is provided between the outer surfaces of the magnetic core, the base, the upper spring, the lower spring, the counterweight and the inner wall of the coil frame.

[0012] Furthermore, the outer shape of the shell is cylindrical, and its internal components are also configured as cylinders, circular plates or circular rings.

[0013] Furthermore, the coil head and tail are respectively led out to the insulated wires through lead wires to achieve current output.

[0014] Furthermore, the first base is fixedly arranged below the magnetic core, and the first base has an upper connecting portion and a lower connecting portion formed as an integral structure, the upper connecting portion is used to connect to the magnetic core, and the lower connecting portion is used to connect to the upper spring; the upper connecting portion and the lower connecting portion of the first base are cylindrical structures with different diameters, and the diameter of the upper connecting portion is the same as the diameter of the magnetic core, and the diameter of the lower connecting portion is smaller than the diameter of the upper connecting portion, forming a stepped abutting end face; the diameter of the lower connecting portion is equal to the inner diameter of the upper spring, so that the upper end of the upper spring can be axially sleeved on the outer periphery of the lower connecting portion and abut against the stepped abutting end face.

[0015] Furthermore, the first base, the second base and the third base have the same structure.

[0016] Beneficial effects: The utility model is reasonably designed and effectively solves the technical problem that voltage and current output cannot be completed under low overload environment. The low overload magnetic rear seat power generation device of the utility model can output sufficient voltage and current even under low overload, and at the same time meet the safety insurance function in the event of falling, vibration, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a magnetic back seat power generation device in the prior art;

[0018] Figure 2 It is a structural schematic diagram of the low overload force magnetic rear seat power generation device of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0023] like Figure 2 As shown, the utility model provides a low overload force magnetic back seat power generation device, including a cover plate 1, a coil frame 2, a magnetic core 3, a base 4, an upper spring 5, a counterweight block 6, a lower spring 7, a coil 8, a shell 9, and an insulated wire 10.

[0024] The coil 8 is wound around the middle of the coil frame 2 and is integrally installed inside the housing 9. The coil frame 2 is a hollow structure, and a cover plate 1 is provided on its upper end surface. The magnetic core 3, the base 4, the upper spring 5, the lower spring 7, and the counterweight 6 are all installed inside the coil frame 2, and a certain gap is provided between the outer surface of the magnetic core 3, the base 4, the upper spring 5, the lower spring 7, and the counterweight 6 and the inner wall of the coil frame 2 to facilitate the magnetic core 3, the base 4, the upper spring 5, the lower spring 7, and the counterweight 6 to perform linear motion inside the coil frame 2.

[0025] The base 4 includes a first base, a second base and a third base; the first base is fixedly arranged at the lower part of the magnetic core 3, the second base is fixedly arranged at the upper part of the counterweight 6, the third base is fixedly arranged at the lower part of the counterweight 6, an upper spring 5 is arranged between the first base and the second base, and a lower spring 7 is arranged between the third base and the bottom of the shell 9. That is, the interior of the coil skeleton 2 is a cylindrical cavity; the lower spring 7, the third base, the counterweight 6, the second base, the upper spring 5, the first base, and the magnetic core 3 are sequentially installed in the cylindrical cavity of the coil skeleton 2 from bottom to top, and are pressed by the cover plate 1; in the initial state, the upper end of the magnetic core 3 contacts the cover plate 1; in the emission state, the magnetic core 3 moves downward under the action of inertia force to pass through the coil 8 to generate a load current. The counterweight 6 is suspended between the magnetic core 3 and the bottom of the shell 9 through the upper spring 5 and the lower spring 7, thereby forming a buffer and energy storage component.

[0026] The first base is fixedly arranged below the magnetic core 3, and the first base has an upper connecting portion and a lower connecting portion formed as an integral structure, the upper connecting portion is used to connect with the magnetic core 3, and the lower connecting portion is used to connect with the upper spring 5. Preferably, the magnetic core is a cylindrical structure, and the upper connecting portion and the lower connecting portion of the first base are cylindrical structures with different diameters, and the diameter of the upper connecting portion is the same as the diameter of the magnetic core, and the diameter of the lower connecting portion is smaller than the diameter of the upper connecting portion, forming a stepped abutting end face; the diameter of the lower connecting portion is equal to the inner diameter of the upper spring 5, so that the upper end of the upper spring 5 can be axially sleeved on the outer periphery of the lower connecting portion and abut against the stepped abutting end face.

[0027] The second base is installed above the counterweight 6, and is used to connect one end of the counterweight 6 to the lower end of the upper spring 5; the third base is installed below the counterweight, and is used to connect the other end of the counterweight 6 to the upper end of the lower spring 7; the lower end of the lower spring 7 is against the bottom of the shell 9, so that the counterweight 6 is suspended between the magnetic core 3 and the bottom of the shell 9 through the upper spring 5 and the lower spring 7. Preferably, the counterweight 6 is cylindrical, the diameter of the counterweight 6 is the same as the diameter of the magnetic core 3, and the counterweight 6 is located below the magnetic core 3; the centers of the counterweight 6 and the magnetic core 3 are located on the same axis. In order to obtain better buffering and energy storage effects, in the initial position state, the upper end surface of the counterweight is located in the middle of the coil skeleton 2, and a part of the counterweight 6 is located in the coil 8. Preferably, the first base, the second base and the third base have the same structure, which can effectively reduce the production cost.

[0028] The stiffness of the upper spring 5 is greater than that of the lower spring 7. The purpose of this arrangement is to ensure that when an overload occurs, the lower spring 7 is compressed first, and the upper spring 5 begins to compress after the lower spring 7 is compressed to a certain position. The mass of the counterweight 6 is greater than that of the magnetic core 3, ensuring that the overload occurring during the fall will not cause the movement of the magnetic core 3.

[0029] The working principle of the low overload magnetic recoil power generation device is as follows: in the initial state, the magnetic core 3 is located above the coil 8; when the projectile is fired, the gunpowder pushes to generate a sufficiently large acceleration so that the inertia force generated by the magnetic core 3 overcomes the compression force of the upper spring 5 and the lower spring 7, causing the magnetic core 3 to move downward through the coil 8, generating an electromotive force in the coil 8, thereby generating a load current to make the load work.

[0030] Even in a low overload launch environment (low overload in the present invention refers to 600g to 1000g), since the counterweight 6 and the lower spring 7 are compressed at the bottom of the housing 9, during this process, the magnetic core 3 can also pass through the coil 8, generating an electromotive force in the coil 8, and generating voltage and current output. Compared with the prior art, the present invention adds a counterweight with an energy storage function. Even in a low overload launch environment within the range of 600g to 1000g, the counterweight can assist the movement of the magnetic core to generate voltage and current output, overcoming the technical problem that the prior art cannot complete voltage and current output in a low overload environment.

[0031] In a falling environment, the counterweight 6 vibrates up and down, playing an effective buffering role. The reciprocating motion of the upper spring 5 and the lower spring 7 eliminates the impact force generated by the fall, and can effectively limit the movement speed and distance of the magnetic core 3, making it difficult for the magnetic core 3 to pass through the coil 8, and the coil 8 basically does not generate voltage and current output. The main function of the counterweight 6 is to play a buffering role, eliminate the impact force of an accidental fall, limit the moving distance of the magnetic core 3, and ensure that the output current is less than the safety threshold when falling.

[0032] In this embodiment, the outer shape of the housing 9 is generally cylindrical, and its components are also cylindrical, circular or circular. According to the installation space requirements, it can also be made into other shapes such as square columns, elliptical columns, etc., and the shapes of other components should also be matched accordingly.

[0033] This embodiment should be in accordance with the attached Figure 2 The positions or mutual relations are assembled and fixed firmly, and the head and tail of the coil 8 are respectively led out to the insulated wire 10 through the lead wires to complete the production, so as to realize the current output. Any simple deformation or equivalent replacement of the design concept of the utility model should be considered to fall within the protection scope of the utility model. Any process or method description in the flowchart of the utility model or described in other ways herein can be understood as a module, fragment or part of a code representing one or more executable instructions for implementing the steps of a specific logical function or process, which can be implemented in any computer scale medium for instruction execution system, device or equipment, and the computer readable medium can be any storage, communication, propagation or transmission program for use by the execution system, device or equipment. Including read-only memory, disk or CD, etc.

[0034] In the description of this specification, the description with reference to the terms "embodiment", "example", 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 representation of the above terms does not necessarily refer to the same embodiment or example. In addition, those skilled in the art can combine or combine different embodiments or examples described in this specification and the features therein without causing contradictions.

[0035] Although the above content has shown and described the embodiments of the present invention, 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 modify the above embodiments within the scope of the present invention.

Claims

1. A low overload magnetic back seat power generation device, characterized in that: It includes a coil skeleton, a magnetic core, a base, an upper spring, a counterweight, a lower spring, a coil, and an outer shell. The coil is wound around the middle of the coil skeleton and is installed as a whole inside the outer shell. The coil skeleton is a hollow structure, and the magnetic core, the base, the upper spring, the lower spring, and the counterweight are all installed inside the coil skeleton. Among them, the base includes a first base fixedly arranged at the lower part of the magnetic core, a second base fixedly arranged at the upper part of the counterweight, and a third base fixedly arranged at the lower part of the counterweight. The counterweight is suspended between the magnetic core and the bottom of the outer shell by the upper spring and the lower spring, forming a buffer and energy storage component.

2. The low overload magnetic rear seat power generation device according to claim 1, characterized in that: The upper spring is arranged between the first base and the second base, and the lower spring is arranged between the third base and the bottom of the shell.

3. The low overload magnetic rear seat power generation device according to claim 1, characterized in that: The stiffness of the upper spring is greater than the stiffness of the lower spring.

4. The low overload magnetic back seat power generation device according to claim 1, characterized in that: The weight of the counterweight block is greater than the weight of the magnetic core.

5. The low overload magnetic rear seat power generation device according to claim 1, characterized in that: The shell is provided with a cover plate, and the lower spring, the third base, the counterweight, the second base, the upper spring, the first base, and the magnetic core are installed in sequence and pressed by the cover plate.

6. The low overload force magnetic back seat power generation device according to claim 1, characterized in that: A set gap is arranged between the outer surfaces of the magnetic core, the base, the upper spring, the lower spring, the counterweight and the inner wall of the coil frame.

7. The low overload magnetic back seat power generation device according to claim 1, characterized in that: The outer shape of the shell is cylindrical, and its internal components are also arranged as cylinders, circular plates or circular rings.

8. The low overload force magnetic back seat power generation device according to claim 1, characterized in that: The coil head and tail are respectively led out to the insulated wire through lead wires to realize current output.

9. The low overload force magnetic back seat power generation device according to any one of claims 1 to 8, characterized in that: The first base is fixedly arranged below the magnetic core, and the first base has an upper connecting part and a lower connecting part formed as an integral structure, the upper connecting part is used to connect with the magnetic core, and the lower connecting part is used to connect with the upper spring; the upper connecting part and the lower connecting part of the first base are cylindrical structures with different diameters, and the diameter of the upper connecting part is the same as the diameter of the magnetic core, and the diameter of the lower connecting part is smaller than the diameter of the upper connecting part, forming a stepped abutting end face; the diameter of the lower connecting part is equal to the inner diameter of the upper spring, so that the upper end of the upper spring can be axially sleeved on the outer periphery of the lower connecting part and abut against the stepped abutting end face.

10. The low overload force magnetic back seat power generation device according to claim 9, characterized in that: The first base, the second base and the third base have the same structure.

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