Energy storage charging and discharging overload fuse structure

Abstract

The utility model belongs to the technical field of electronic components, and particularly relates to an energy storage charging and discharging overload fuse structure, which comprises an insulating base, a fixing plate, a contact terminal, a fusible core and a shell. The contact terminal includes an elastic contact bracket and a contact plate. The two contact plates are arranged in parallel at an interval and form a plug-in groove. According to the energy-storage charge-discharge overload fuse structure provided by the invention, one end of the fusible core is inserted into the insertion groove and is in crimping contact with the two contact plates, so that the contact area of the fusible core and the contact plates is increased, heat on the contact plates can be quickly transferred to the fusible core, and when a circuit is disconnected, the fusible core can be quickly burnt out, the circuit is disconnected, the circuit is prevented from being burnt out, and the service life of the fuse is prolonged. The safety is improved, when the fuse is damaged or needs to be replaced, the fuse does not need to be disassembled, the fuse is directly pulled out, a brand-new fuse is inserted, repeated disassembly and installation of fuse bolts are reduced, and therefore the fuse can be replaced more conveniently and rapidly.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic components, and in particular relates to an energy storage charging and discharging overload fuse structure. Background Art

[0002] A fuse is an electrical device that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value. Common energy storage fuses are devices that store energy through a medium or device and release it when needed. Therefore, energy storage fuses are widely used in power systems.

[0003] The contact area between the conductor and the fuse of the existing fuse is small, which can easily lead to poor circuit contact. When the circuit is broken, due to the small contact area, the heat on the conductor cannot be quickly transferred to the fuse, which can easily cause the circuit to burn out and cause safety hazards. In addition, when the existing fuse is damaged or needs to be replaced, the fuse shell needs to be disassembled and the wires need to be connected to the conductors in the shell, which makes wire wiring inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide an energy storage charge and discharge overload fuse structure, aiming to solve the technical problems in the prior art that the contact area between the conductor and the fuse is small, which easily leads to poor circuit contact. When the circuit is disconnected, due to the small contact area, the heat on the conductor cannot be quickly transferred to the fuse, which easily leads to circuit burnout and creates a safety hazard.

[0005] To achieve the above-mentioned purpose, the embodiment of the present utility model provides an energy storage charge and discharge overload fuse structure, comprising an insulating base, a fixing plate, a contact terminal, a fusible core, and a housing. The fixing plate is connected to the insulating base, the contact terminal is connected to the fixing plate and is in press-fit contact with the fusible core. One end of the fusible core is connected to the housing, and the other end is in press-fit contact with the contact terminal.

[0006] The contact terminal includes an elastic contact bracket and a contact plate. The elastic contact bracket is connected to the fixed plate. Two contact plates are provided and are both connected to the end of the elastic contact bracket. The two contact plates are arranged in parallel and spaced apart to form a plug-in slot. One end of the fuse core is inserted into the plug-in slot and is crimped into contact with the two contact plates.

[0007] As an optional solution of the present invention, a receiving groove is provided in the middle of the insulating base, the receiving groove is arranged below the shell, and a positioning hole is provided in the receiving groove, and two positioning holes are provided.

[0008] As an optional solution of the present invention, two fixing plates are provided, both of which are fixedly connected to the end of the insulating base, and a fixing bolt is fixedly passed through each fixing plate.

[0009] As an optional solution of the present invention, the number of the contact terminals is the same as the number of the fixing plates, and one contact terminal is correspondingly provided on one fixing plate.

[0010] As an optional solution of the present invention, two fusible cores are provided and are fixedly connected to the side of the shell. The thickness of the fusible core is greater than the depth of the plug-in slot. The material of the fusible core is silver-copper alloy.

[0011] As an optional solution of the present invention, the fuse core includes a fuse core body and a fuse core guide head, one end of the fuse core guide head is fixedly connected to the fuse core body, and the other end is arranged in a V shape; the fuse core guide head is inserted into the insertion slot.

[0012] As an optional solution of the present invention, the elastic contact bracket is arranged in a U shape.

[0013] The above one or more technical solutions in the energy storage charge and discharge overload fuse structure provided by the embodiment of the utility model have at least one of the following technical effects:

[0014] The energy storage charge and discharge overload fuse structure provided in the present application includes an insulating base, a fixing plate, a contact terminal, a fuse core and a shell. The contact terminal includes an elastic contact bracket and a contact plate. The two contact plates are arranged in parallel and spaced apart to form a plug-in slot. One end of the fuse core is plugged into the plug-in slot and is crimped into contact with the two contact plates, thereby increasing the contact area between the fuse core and the contact plates. The heat on the contact plate can be quickly transferred to the fuse core. When the circuit is broken, the fuse core can be quickly burned out to disconnect the circuit, thereby avoiding circuit burnout and improving safety. Moreover, when the fuse is damaged or needs to be replaced, there is no need to remove the fuse mounting screws. The fuse can be directly pulled out and a new fuse can be inserted, thereby reducing repeated disassembly and installation of fuse bolts, making fuse replacement more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a structural diagram of the energy storage charge and discharge overload fuse structure provided in an embodiment of the present utility model.

[0017] Figure 2 A schematic structural diagram of the shell and fuse core of the energy storage charge and discharge overload fuse structure provided in an embodiment of the present utility model.

[0018] Figure 3 A structural schematic diagram of the insulating base of the energy storage charge and discharge overload fuse structure provided in an embodiment of the utility model.

[0019] Among them, the reference numerals in the figures are:

[0020] 1. Insulation base; 2. Fixing plate; 3. Contact terminal; 4. Fuse core; 5. Housing;

[0021] 11. Accommodation groove; 12. Positioning hole;

[0022] 21. Fixing bolts;

[0023] 31. Elastic contact bracket; 32. Contact plate; 33. Plug slot;

[0024] 41. Fuse core body; 42. Fuse core guide. DETAILED DESCRIPTION

[0025] The following describes in detail embodiments of the present invention, 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 embodiments of the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0028] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0029] In one embodiment of the present invention, Figures 1 to 3 As shown, a structure for an energy storage charge-discharge overload fuse is provided, comprising an insulating base 1, a fixing plate 2, contact terminals 3, a fuse core 4, and a housing 5. The fixing plate 2 is fixedly connected to the insulating base 1, and the contact terminals 3 are connected to the fixing plate 2 and press-fit into contact with the fuse core 4. One end of the fuse core 4 is fixedly connected to the housing 5, and the other end is press-fit into contact with the contact terminals 3. Specifically, the fixing plate 2 and contact terminals 3 are made of conductive material.

[0030] The contact terminal 3 comprises a resilient contact bracket 31 and a contact plate 32. The resilient contact bracket 31 is fixedly connected to the fixed plate 2. Two contact plates 32 are provided, each fixedly connected to the end of the resilient contact bracket 31. The two contact plates 32 are spaced apart in parallel and form a socket 33. One end of the fuse 4 is inserted into the socket 33 and crimped into contact with the two contact plates 32. During use, if a wire short-circuits or the wire temperature rises significantly due to excessive power, the wire transfers heat to the fixed plate 2, the contact bracket, and the contact plate 32. The contact plate 32 then transfers heat to the fuse 4. When the temperature reaches the melting point of the fuse 4, the fuse 4 gradually melts until it no longer contacts the contact plate 32. At this point, the wire remains disconnected from the fuse 4, breaking the circuit and preventing burns due to excessive temperatures. This improves safety. Furthermore, if the fuse is damaged or needs to be replaced, the fuse can be directly removed and a new one inserted without removing the fuse mounting screws. This reduces the need for repeated removal and installation of fuse bolts, making fuse replacement more convenient and quicker.

[0031] The energy storage charge and discharge overload fuse structure provided in the present application has two contact plates 32 arranged in parallel and spaced apart to form an insertion slot 33. One end of the fuse core 4 is inserted into the insertion slot 33 and is crimped into contact with the two contact plates 32, thereby increasing the contact area between the fuse core 4 and the contact plates 32. The heat on the contact plates 32 can be quickly transferred to the fuse core 4. When the circuit is broken, the fuse core 4 can be quickly burned out to disconnect the circuit, thereby avoiding circuit burnout and improving safety.

[0032] In another embodiment of the present invention, a receiving groove 11 is provided in the middle of the insulating base 1 of the energy storage charge and discharge overload fuse structure. The receiving groove 11 is provided below the housing 5. Two positioning holes 12 are provided in the receiving groove 11. The positioning holes 12 facilitate fixing the insulating base 1.

[0033] In another embodiment of the present invention, the energy storage charge and discharge overload fuse structure is provided with two fixing plates 2, both of which are fixedly connected to the end of the insulating base 1, and each fixing plate 2 is fixedly penetrated by a fixing bolt 21. The fixing bolt 21 facilitates the fixing of the fixing plate 2.

[0034] In another embodiment of the present invention, the number of the contact terminals 3 of the energy storage charge and discharge overload fuse structure is the same as the number of the fixing plates 2 , and one contact terminal 3 is correspondingly provided on one fixing plate 2 .

[0035] In another embodiment of the present invention, the energy storage charge-discharge overload fuse structure includes two fuse cores 4, both fixedly connected to the side of the housing 5. The thickness of the fuse core 4 is greater than the depth of the insertion slot 33. The fuse core 4 is made of a silver-copper alloy. Silver-copper alloy is not only excellent in electrical and thermal conductivity, but also in its ability to quickly fuse when the current is too high or the temperature is too high, thereby cutting off the current and protecting other components in the circuit from damage.

[0036] In another embodiment of the present invention, the fuse core 4 of the energy storage charge and discharge overload fuse structure includes a fuse core body 41 and a fuse core lead 42. One end of the fuse core lead 42 is fixedly connected to the fuse core body 41, and the other end is V-shaped. The fuse core lead 42 is inserted into the insertion slot 33 and is crimped into contact with the contact plate 32.

[0037] In another embodiment of the present invention, the elastic contact bracket 31 of the energy storage charge and discharge overload fuse structure is U-shaped. The contact plate 32 is disposed at the U-shaped opening of the elastic contact bracket 31. The elastic contact bracket 31 is elastic and can continuously press-contact with the contact plate 32 to ensure circuit conduction.

[0038] The energy storage charge and discharge overload fuse structure provided by the present application has two contact plates 32 arranged in parallel and spaced apart to form an insertion slot 33. One end of the fuse core 4 is inserted into the insertion slot 33 and is crimped into contact with the two contact plates 32, thereby increasing the contact area between the fuse core 4 and the contact plate 32. The heat on the contact plate 32 can be quickly transferred to the fuse core 4. When the circuit is broken, the fuse core 4 can be quickly burned out to disconnect the circuit, thereby avoiding circuit burnout and improving safety. In addition, when the fuse is damaged or needs to be replaced, there is no need to remove the fuse mounting screws. The fuse can be directly pulled out and a new fuse can be inserted, thereby reducing repeated disassembly and installation of fuse bolts, making fuse replacement more convenient and quick.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An energy storage charge and discharge overload fuse structure, characterized in that: It includes an insulating base, a fixing plate, a contact terminal, a fusible core and a shell, wherein the fixing plate is connected to the insulating base, the contact terminal is connected to the fixing plate and is in press-fit contact with the fusible core, one end of the fusible core is connected to the shell, and the other end is in press-fit contact with the contact terminal; The contact terminal includes an elastic contact bracket and a contact plate. The elastic contact bracket is connected to the fixed plate. Two contact plates are provided and are both connected to the end of the elastic contact bracket. The two contact plates are arranged in parallel and spaced apart to form a plug-in slot. One end of the fuse core is inserted into the plug-in slot and is crimped into contact with the two contact plates.

2. The energy storage charge and discharge overload fuse structure according to claim 1, characterized in that: A receiving groove is provided in the middle of the insulating base, and the receiving groove is arranged below the shell. A positioning hole is provided in the receiving groove, and two positioning holes are provided.

3. The energy storage charge and discharge overload fuse structure according to claim 1, characterized in that: There are two fixing plates, both of which are fixedly connected to the end of the insulating base, and each fixing plate is fixedly provided with a fixing bolt.

4. The energy storage charge and discharge overload fuse structure according to claim 3, characterized in that: The number of the contact terminals is the same as the number of the fixing plates, and one contact terminal is correspondingly provided on one fixing plate.

5. The energy storage charge and discharge overload fuse structure according to claim 1, characterized in that: There are two fusible cores, both of which are fixedly connected to the side of the shell. The thickness of the fusible core is greater than the depth of the plug-in slot. The material of the fusible core is silver-copper alloy.

6. The energy storage charge and discharge overload fuse structure according to claim 1, characterized in that: The fusible core comprises a fusible core body and a fusible core guide head. One end of the fusible core guide head is fixedly connected to the fusible core body, and the other end is arranged in a V shape. The fusible core guide head is plugged into the plug-in slot.

7. The energy storage charge and discharge overload fuse structure according to claim 1, characterized in that: The elastic contact bracket is arranged in a U shape.

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