Conductive plate, fuse, electric device, and vehicle

Abstract

A conductive plate, a fuse, an electric device, and a vehicle. The conductive plate comprises a body and a buffer structure. The body comprises a fracturable bending portion. The buffer structure is connected to the body and located on one side of the fracturable bending portion, and the buffer structure is spaced apart from the fracturable bending portion so as to at least partially abut against the fracturable bending portion upon fracture of the fracturable bending portion.

Description

Conductive plate, fuse, electric appliance and vehicle

[0001] Cross Reference to Related Applications

[0002] The present disclosure claims priority to the Chinese patent application No. 202410817255.0, filed on June 24, 2024, and entitled "Conductive plate, fuse, electric appliance and vehicle", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of fuses, in particular, to a conductive plate, a fuse, an electric appliance and a vehicle. BACKGROUND

[0004] In the related art, the conductive plate of the fuse, the circuit breaker and the rapid power-off device is installed in the moving forward direction of the power device, and can realize the cutting function under the impact of the power device. After the conductive plate is broken by impact, part of the impact energy is transmitted to the broken bending part, which is easy to cause damage to other structures on the forward route. In addition, the broken bending part is completely separated from the main body of the conductive plate, and conductive debris is generated, which may affect the normal operation of other devices nearby. SUMMARY

[0005] The purpose of the present disclosure is to provide a conductive plate, a fuse, an electric appliance and a vehicle, which can avoid the broken bending part from acting on other components due to excessive deformation, and protect other structures or devices nearby.

[0006] To achieve the above purpose, the first aspect of the present disclosure provides a conductive plate, comprising:

[0007] a body comprising a broken bending part; and

[0008] a buffer structure connected to the body, the buffer structure being located on one side of the broken bending part, and the buffer structure being spaced apart from the broken bending part to at least partially abut the broken bending part when the broken bending part is disconnected.

[0009] Optionally, the body further comprises a first connecting segment and a second connecting segment connected to two ends of the broken bending part, respectively.

[0010] The buffer structure is connected to the first connecting segment and / or the second connecting segment.

[0011] Optionally, the buffer structure is connected to the first connecting segment, and a bending part is formed at the joint between the first connecting segment and the broken bending part.

[0012] A broken part is formed between the second connecting segment and the broken bending part.

[0013] Optionally, the bending portion comprises a first notch at a joint between the first connecting segment and the breaking bending portion.

[0014] The breaking portion comprises a second notch at a joint between the second connecting segment and the breaking bending portion.

[0015] Optionally, the width of the bending portion is greater than the width of the breaking portion.

[0016] Optionally, the first notch and the second notch are respectively located at opposite sides in the body width direction.

[0017] Optionally, an end of the breaking bending portion close to the second notch is formed with a third notch, and the first notch and the third notch are both located at the same side in the body width direction.

[0018] Optionally, the buffer structure is configured as a protruding portion extending away from the first connecting segment;

[0019] The side surface of the breaking bending portion facing the protruding portion is configured as a first arc surface;

[0020] The protruding portion is formed with a second arc surface corresponding to the first arc surface.

[0021] Optionally, the first arc surface and the second arc surface are located on two concentric circles with the same center.

[0022] Optionally, the width of the protruding portion gradually decreases away from the first connecting segment.

[0023] Optionally, one first terminal is formed at an end of the first connecting segment and the second connecting segment away from the breaking bending portion; and / or

[0024] One second terminal is formed at an end of the first connecting segment and the second connecting segment close to the breaking bending portion.

[0025] Optionally, the body and the buffer structure are integrally formed.

[0026] In a second aspect, the present disclosure provides a fuse, which comprises the conductive plate as described above.

[0027] In a third aspect, the present disclosure further provides an electrical device, which comprises the fuse as described above.

[0028] In a fourth aspect, the present disclosure further provides a vehicle, which comprises the fuse as described above or the electrical device as described above.

[0029] By the technical scheme, the conductive plate of the present disclosure comprises a body with a fracture bending part and a buffer structure connected with the body and arranged at one side of the fracture bending part, the buffer structure can at least partially abut against the fracture bending part when the fracture bending part is disconnected, absorb the impact energy carried by the fracture bending part, avoid the fracture bending part from acting on other components due to excessive deformation, and protect other structures or devices nearby.

[0030] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, which together with the following detailed description, serve to explain the present disclosure. In the drawings:

[0032] Fig. 1 is a structure diagram of a conductive plate before fracture according to some embodiments of the present disclosure.

[0033] Fig. 2 is a structure diagram of a conductive plate after fracture according to some embodiments of the present disclosure.

[0034] Fig. 3 is a structure diagram of a fuse according to some embodiments of the present disclosure.

[0035] Fig. 4 is a structure diagram of an electrical equipment according to some embodiments of the present disclosure.

[0036] Fig. 5 is a structure diagram of a vehicle according to some embodiments of the present disclosure.

[0037] Fig. 6 is a structure diagram of a vehicle according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0038] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0039] In the present disclosure, the orientation words such as "inner" and "outer" refer to the contour of the corresponding components, and in addition, F in the figure represents the force acting on the fracture bending part of the body. The terms "first", "second", etc. used in the present disclosure are used to distinguish one element from another element, and do not have sequentiality and importance. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements, unless otherwise indicated.

[0040] In the incentive fuse, pyrotechnic circuit breaker and fast tripping device, there is usually a conductive plate which is quickly cut off when an accident occurs, thereby breaking the circuit and reducing or avoiding the occurrence of subsequent disasters. Therefore, the conductive plate should be designed to be easily and quickly cut off.

[0041] In the related art, the conductive plate is installed in the moving forward direction of the power device and can be cut off under the impact of the power device. However, the above-mentioned technology has the following shortcomings.

[0042] Firstly, after the conductive plate is broken by impact, part of the impact energy of the impact head is transmitted to the broken bending part, and the part continues to move in the impact direction, which is easy to cause damage to other structures on the forward route.

[0043] Secondly, in order to ensure a high cutting speed, a large impact energy is sometimes used, which may cause the broken bending part of the conductive plate to completely separate from the main body of the conductive plate and generate conductive debris, which may affect the normal operation of other devices nearby.

[0044] The purpose of the present disclosure is to provide a conductive plate 100, a fuse 1000, an electrical equipment 2000 and a vehicle 3000, which can avoid the broken bending part 111 from completely separating from the body 110 due to excessive deformation and protect other structures or devices nearby.

[0045] In order to achieve the above-mentioned purpose, as shown in FIGS. 1-2, the embodiment of the present disclosure provides a conductive plate 100, which comprises a body 110 and a buffer structure 120. The body 110 comprises a broken bending part 111; the buffer structure 120 is connected to the body 110, and the buffer structure 120 is located on one side of the broken bending part 111 and is arranged in a spaced manner with the broken bending part 111, so as to at least partially abut the broken bending part 111 when the broken bending part 111 is broken.

[0046] Through the above-mentioned technical solution, the conductive plate 100 comprises the body 110 having the broken bending part 111 and the buffer structure 120 connected to the body 110 and arranged on the side of the broken bending part 111 in the deformation direction (opposite side of the impact force), which can at least partially abut the broken bending part 111 when the broken bending part 111 is broken, absorb the impact energy carried by the broken bending part 111, avoid the broken bending part 111 from acting on other components due to excessive deformation, or completely separating from the body 110, and protect other structures or devices nearby.

[0047] It should be noted that, as shown in FIG. 1, the deformation direction in the present embodiment refers to the left side of the body 110, and the stress direction refers to the right side of the body 110.

[0048] As shown in FIG. 1, in some embodiments, the body 110 further comprises a first connecting section 112 and a second connecting section 113 connected to two ends of the fracture bending section 111 respectively; the buffer structure 120 is connected to the first connecting section 112 and / or the second connecting section 113. Among them, the first connecting section 112 is connected to one end of the fracture bending section 111, the second connecting section 113 is connected to the other end of the fracture bending section 111, and the buffer structure 120 can be arranged on the first connecting section 112 or the second connecting section 113, which can support the fractured fracture bending section 111 on the back side of the stress direction of the fracture bending section 111, so as to avoid its influence on other components.

[0049] In addition, it should be noted that the buffer structure 120 can also be arranged on the first connecting section 112 and the second connecting section 113 at the same time, but it should be noted that the buffer structure 120 cannot affect the fracture of the fracture bending section 111.

[0050] As shown in FIG. 1 and FIG. 2, in one embodiment, the buffer structure 120 is connected to the first connecting section 112, and a bending section 111a is formed at the joint of the first connecting section 112 and the fracture bending section 111; a fracture section 111b is formed between the second connecting section 113 and the fracture bending section 111. Among them, the arrangement of the bending section 111a can make the fracture bending section 111 preferentially deform by bending at this position, and the arrangement of the fracture section 111b can make the fracture bending section 111 preferentially disconnect at this position, and better realize the disconnection. Therefore, due to the arrangement of the bending section 111a and the fracture section 111b, when the fracture bending section 111 is stressed, the fracture bending section 111 can be disconnected at the fracture section 111b, and bent in the deformation direction at the bending section 111a, avoiding that the fracture bending section 111 of the conductive plate 100 is completely separated from the body 110 due to excessive deformation, and protecting the nearby other structures or devices.

[0051] In addition, since the buffer structure 120 is on the same side as the first connecting section 112, after the conductive plate 100 is cut off, the buffer structure 120 is fixedly connected to the part (the first connecting section 112) of the fracture bending section 111 connected in sequence, and the contact between the fracture bending section 111 and the buffer structure 120 will not cause an electric arc, improving the safety performance.

[0052] The bending portion 111a and the breaking portion 111b can be configured in any suitable structure. As shown in FIG. 1, in some embodiments, the bending portion 111a includes a first notch 1101 at the joint between the first connecting segment 112 and the breaking bending portion 111; and the breaking portion 111b includes a second notch 1102 at the joint between the second connecting segment 113 and the breaking bending portion 111. The first notch 1101 and the second notch 1102 are configured to reduce the strength at the corresponding positions, so that the breaking bending portion 111 can be better bent and broken when subjected to force (e.g. impact). The first notch 1101 and the second notch 1102 can be in any suitable shape, such as V-shaped or U-shaped notch, so as to reduce the width of the conductive plate 100 at the corresponding positions and reduce the strength at the corresponding positions.

[0053] In some embodiments, in order to break the breaking portion 111b and bend the bending portion 111a, the width of the bending portion 111a is greater than the width of the breaking portion 111b, so that the bending portion 111a has greater strength and can be bent without breaking, while the breaking portion 111b has less strength and is prone to break.

[0054] The first notch 1101 and the second notch 1102 are configured to reduce the strength at the corresponding positions, so as to facilitate bending and breaking. Therefore, the first notch 1101 and the second notch 1102 can be disposed on the same side or opposite sides of the joint between the first connecting segment 112 and the breaking bending portion 111 and the joint between the second connecting segment 113 and the breaking bending portion 111. In some embodiments, the first notch 1101 and the second notch 1102 are respectively disposed on opposite sides of the width direction of the body 110. As shown in FIG. 1, the first notch 1101 can be a V-shaped notch disposed on the side of the conductive plate 100 away from the buffer structure 120, and the second notch 1102 can be a V-shaped notch disposed on the side of the conductive plate 100 facing the buffer structure 120. It should be noted that the V-shaped and U-shaped notches described above are exemplary, and can also be other shapes that can reduce the strength, which are not limited here.

[0055] In order to facilitate the fracture of the fracture portion 111b, while ensuring that the position can also have a certain width to meet the current flow demand, as shown in FIG. 1, in some embodiments, the fracture bending portion 111 is formed with a third notch 1103 near one end of the second notch 1102, and the third notch 1103 and the first notch 1101 are located on the same side of the width direction of the body 110. Among them, the third notch 1103 can face the stress direction of the fracture bending portion 111, which can be located between the first notch 1101 and the second notch 1102, closer to the second notch 1102. The third notch 1103 is arranged, which can form a relatively weak part in the direction of the punch of the fracture bending portion 111 towards the impact device, facilitating deformation after stress, so that the part between the third notch 1103 and the second notch 1102 can be in contact with the punch at all times, facilitating the force to act on the fracture bending portion 111, thereby facilitating the fracture of the fracture portion 111b.

[0056] In addition, the arrangement of the third notch 1103 can further reduce the strength of the fracture portion 111b, which is beneficial to the fracture under stress; on the other hand, it can also make the fracture portion 111b have enough width to facilitate current flow. It is worth noting that the third notch 1103 can be constructed in any suitable structure, including but not limited to V-shaped notch, U-shaped notch, semicircular notch, etc.

[0057] The buffer structure 120 can be constructed in any suitable structure, as shown in FIG. 1, in some embodiments, the buffer structure 120 is constructed as a protruding portion 121 extending away from the first connecting segment 112; the side of the fracture bending portion 111 towards the protruding portion 121 is constructed as a first arc surface 1111; the protruding portion 121 is formed with a second arc surface 1211 corresponding to the first arc surface 1111. When the fracture bending portion 111 fractures, the second arc surface 1211 can contact the first arc surface 1111 to increase the contact area between the two, so that the buffer structure 120 can better support the fracture bending portion 111. It should be noted that the entire fracture bending portion 111 is generally semicircular in structure, the first arc surface 1111 is a curved surface protruding towards the buffer structure 120, and the second arc surface 1211 is a curved surface corresponding to the first arc surface 1111.

[0058] In some embodiments, the first arc surface 1111 and the second arc surface 1211 are located on two concentric circles with the same center, that is, the contour of the first arc surface 1111 and the contour of the second arc surface 1211 are located on two concentric circles, and the radius of the second arc surface 1211 is greater than the radius of the first arc surface 1111, so that when the fracture bending part 111 is broken, the first arc surface 1111 can be supported by the second arc surface 1211 of the buffer structure. Since they are both arc surfaces and located on two concentric circles with the same center, they can have a larger supporting area.

[0059] The protruding part 121 can adopt any suitable shape, as shown in FIG. 1. In some embodiments, the width of the protruding part 121 gradually decreases in the direction away from the first connecting segment 112. Through the above arrangement, that is, the protruding part 121 extends from one end close to the first connecting segment 112 to the second connecting segment 113, and the width thereof gradually decreases. This arrangement can ensure that the buffer structure 120 can more stably support the fracture bending part 111 when the fracture bending part 111 is broken, thereby avoiding that the fracture bending part 111 is completely separated from the body 110. It should be noted that the width of the protruding part 121 refers to the size of the protruding part 121 in the left-right direction as shown in FIG. 1.

[0060] In order to realize the connection of the conductive plate, as shown in FIG. 1, optionally, one first wiring terminal 1104 is formed at one end of the first connecting segment 112 and the second connecting segment 113 away from the fracture bending part 111. That is, one first wiring terminal 1104 is formed at one end of the first connecting segment 112 away from the fracture bending part 111, and another first wiring terminal 1104 is formed at one end of the second connecting segment 113 away from the fracture bending part 111, and the first wiring terminal 1104 is used to connect the conductive plate 100 in the circuit.

[0061] As shown in FIG. 1, in some embodiments, one second wiring terminal 1105 is formed at one end of the first connecting segment 112 and the second connecting segment 113 close to the fracture bending part 111. That is, one second wiring terminal 1105 is formed at one end of the first connecting segment 112 close to the fracture bending part 111, and another second wiring terminal 1105 is formed at one end of the second connecting segment 113 close to the fracture bending part 111 (for example, the side of the buffer structure 120), and the two second wiring terminals 1105 can be connected by a conductive part or a fuse.

[0062] The first wiring terminal 1104 and the second wiring terminal 1105 can adopt a related structure known in the related art, for example, mounting holes can be provided on the first connecting segment 112 and the second connecting segment 113 to form the first wiring terminal 1104 and the second wiring terminal 1105.

[0063] Optionally, the body 110 and the buffer structure 120 are integrally formed. In this case, the buffer structure 120 and the body 110 can be one whole, for example, can be integrally formed by stamping, cutting, casting, and the like, and thus the structure is simple and easy to manufacture.

[0064] As shown in FIG. 3, the embodiment of the present disclosure provides a fuse 1000, which comprises the conductive plate 100 described above, and thus the fuse 1000 also has all the advantages of the conductive plate 100 described above. It should be noted that the fuse 1000 also comprises the cutting piece 200 and the driving mechanism 300 corresponding to the conductive plate 100. Meanwhile, it also comprises corresponding parts necessary for other fuses, which will not be described here.

[0065] As shown in FIG. 4, the embodiment of the present disclosure provides an electrical equipment 2000, which comprises the fuse 1000 described above, and thus the electrical equipment 2000 also has all the advantages of the fuse 1000 described above.

[0066] It should be noted that the electrical equipment 2000 can be a distribution box, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, and an electric tool, and the like. The spacecraft includes an airplane, a rocket, a space shuttle, a spacecraft, and the like; the electric toy includes a fixed or mobile electric toy, for example, a game machine, an electric car toy, an electric ship toy, and an electric plane toy, and the like; the electric tool includes a metal cutting electric tool, a grinding electric tool, an assembling electric tool, and a railway electric tool, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator, and an electric planer, and the like. The embodiment of the present disclosure does not specially limit the electrical equipment described above.

[0067] As shown in FIG. 5 and FIG. 6, the embodiment of the present disclosure also provides a vehicle 3000, which comprises the fuse 1000 described above or the vehicle 3000 comprises the electrical equipment 2000 described above, and thus the vehicle 3000 also has all the advantages of the fuse 1000 and the electrical equipment 2000 described above, which will not be described here. In this case, the vehicle 3000 can be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile, or a range extended automobile, and the like.

[0068] The conductive plate 100, the fuse 1000, the electrical device 2000 and the vehicle 3000 of the present disclosure, the conductive plate 100 comprises a body 110 with a fracture bending part 111 and a buffer structure 120 connected with the body 110 and arranged on the side of the deformation direction of the fracture bending part 111, the buffer structure 120 can at least partially abut the fracture bending part 111 when the fracture bending part 111 is disconnected, absorb the impact energy carried by the fracture bending part 111, avoid the fracture bending part 111 from completely separating from the body 110 due to excessive deformation, and protect other structures or devices nearby.

[0069] Further, the buffer structure 120 is integrated with the body 110, and the structure is simple and easy to manufacture.

[0070] Further, after the conductive plate 100 is cut off, the buffer structure 120 is fixedly connected with a part of the fracture bending part 111, and the contact between the fracture bending part 111 and the buffer structure 120 will not cause an electric arc.

[0071] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments, and various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0072] In addition, it should be noted that each specific technical feature described in the above-described specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the present disclosure will not further describe various possible combination manners.

[0073] In addition, various different embodiments of the present disclosure can also be combined in any manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. A conductive plate (100), characterized in that, include: The body (110) includes a fractured bend (111); and A buffer structure (120) is connected to the body (110). The buffer structure (120) is located on one side of the fracture bend (111). The buffer structure (120) is spaced apart from the fracture bend (111) so that it at least partially abuts against the fracture bend (111) when the fracture bend (111) is broken.

2. The conductive plate according to claim 1, characterized in that, The body (110) also includes a first connecting segment (112) and a second connecting segment (113) respectively connected to the two ends of the fractured bent portion (111); The buffer structure (120) is connected to the first connecting segment (112) and / or the second connecting segment (113).

3. The conductive plate according to claim 2, characterized in that, The buffer structure (120) is connected to the first connecting segment (112), and a bend (111a) is formed at the junction of the first connecting segment (112) and the fractured bend (111). A fracture portion (111b) is formed between the second connecting segment (113) and the fractured bending portion (111).

4. The conductive plate according to claim 3, characterized in that, The bent portion (111a) includes a first notch (1101) located at the junction of the first connecting segment (112) and the broken bent portion (111); The fracture portion (111b) includes a second notch (1102) located at the junction of the second connecting segment (113) and the fractured bend (111).

5. The conductive plate according to claim 3 or 4, characterized in that, The width of the curved portion (111a) is greater than the width of the fracture portion (111b).

6. The conductive plate according to claim 4 or 5, characterized in that, The first notch (1101) and the second notch (1102) are located on opposite sides of the body (110) in the width direction.

7. The conductive plate according to any one of claims 4-6, characterized in that, A third notch (1103) is formed at one end of the fractured bend (111) near the second notch (1102), and the third notch (1103) and the first notch (1101) are both located on the same side of the width direction of the body (110).

8. The conductive plate according to any one of claims 3-7, characterized in that, The buffer structure (120) is configured as a protrusion (121) extending in a direction away from the first connecting segment (112); The side of the fractured bend (111) facing the protrusion (121) is constructed as a first arc-shaped surface (1111); The protrusion (121) is formed with a second arcuate surface (1211) corresponding to the first arcuate surface (1111).

9. The conductive plate according to claim 8, characterized in that, The first arc surface (1111) and the second arc surface (1211) are located on two concentric circles with the same center.

10. The conductive plate according to claim 8 or 9, characterized in that, Along the direction away from the first connecting segment (112), the width of the protrusion (121) gradually decreases.

11. The conductive plate according to any one of claims 3-10, characterized in that, The first connecting segment (112) and the second connecting segment (113) each have a first terminal (1104) formed at the end away from the fractured bend (111); and / or The first connecting segment (112) and the second connecting segment (113) each have a second terminal (1105) formed at one end near the fractured bend (111).

12. The conductive plate according to any one of claims 1-11, characterized in that, The main body (110) and the buffer structure (120) are integrally formed.

13. A fuse (1000), characterized in that, The fuse (1000) includes the conductive plate (100) as described in any one of claims 1-12.

14. An electrical appliance (2000), characterized in that, The electrical equipment (2000) includes the fuse (1000) as described in claim 13.

15. A vehicle (3000), characterized in that, The vehicle (3000) includes the fuse (1000) of claim 13 or the vehicle (3000) includes the electrical equipment (2000) of claim 14.

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