Conductive plates, fuses, electrical equipment and vehicles

Abstract

The present disclosure relates to a conductive plate, a fuse, an electrical device and a vehicle. The conductive plate includes a body and a buffer structure. The body includes a broken curved portion; the buffer structure is connected to the body, the buffer structure is located on one side of the broken curved portion, and the buffer structure is spaced apart from the broken curved portion so as to at least partially abut against the broken curved portion when the broken curved portion is disconnected. The conductive plate can prevent the broken curved portion from acting on other components due to excessive deformation, thereby protecting other nearby structures or devices.

Description

Technical Field

[0001] The present disclosure relates to the technical field of fuses, and in particular, to a conductive plate, a fuse, an electrical device and a vehicle. Background Art

[0002] In excitation fuses, pyrotechnic circuit breakers and quick disconnect devices, there are usually conductive plates. When an accident occurs, the conductive plates can be quickly cut off to disconnect the circuit, reducing or avoiding the occurrence of subsequent disasters. Therefore, when designing the conductive plates, it should be ensured that they are easy to cut off quickly.

[0003] In the related art, the conductive plate is installed in the 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 the impact, part of the impact energy is transferred to the broken curved part, which is easy to cause damage to other structures on the forward route. In addition, the broken curved 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 nearby devices. Summary of the invention

[0004] The purpose of the present disclosure is to provide a conductive plate, a fuse, an electrical device and a vehicle, wherein the conductive plate can prevent the broken bent portion from acting on other components due to excessive deformation, thereby protecting other nearby structures or devices.

[0005] In order to achieve the above object, the present disclosure provides a first aspect of a conductive plate, comprising:

[0006] a body including a fractured bend; and

[0007] A buffer structure is connected to the body, the buffer structure is located at one side of the broken curved portion, and the buffer structure is spaced apart from the broken curved portion so as to at least partially abut against the broken curved portion when the broken curved portion is broken.

[0008] Optionally, the body further comprises a first connecting section and a second connecting section respectively connected to two ends of the broken curved portion;

[0009] The buffer structure is connected to the first connecting section and / or the second connecting section.

[0010] Optionally, the buffer structure is connected to the first connecting section, and a bending portion is formed at the junction of the first connecting section and the broken bending portion;

[0011] A breaking portion is formed between the second connecting section and the breaking curved portion.

[0012] Optionally, the curved portion comprises a first notch located at the junction of the first connecting section and the broken curved portion;

[0013] The fracture portion includes a second notch located at the junction of the second connecting section and the fractured curved portion.

[0014] Optionally, the width of the bent portion is greater than the width of the broken portion.

[0015] Optionally, the first notch and the second notch are respectively located on two opposite sides in the width direction of the body.

[0016] Optionally, a third notch is formed at one end of the broken curved portion close to the second notch, and the third notch and the first notch are located on the same side in the width direction of the body.

[0017] Optionally, the buffer structure is configured as a protrusion extending in a direction away from the first connecting section;

[0018] The side surface of the broken curved portion facing the raised portion is configured as a first arc-shaped surface;

[0019] The protrusion is formed with a second arc-shaped surface corresponding to the first arc-shaped surface.

[0020] Optionally, the first arcuate surface and the second arcuate surface are located on two concentric circles with the same center.

[0021] Optionally, the width of the protrusion gradually decreases in a direction away from the first connecting section.

[0022] Optionally, a first terminal is formed at one end of the first connecting section and the second connecting section away from the broken curved portion; and / or

[0023] A second connecting terminal is formed at one end of the first connecting section and the second connecting section close to the broken curved portion respectively.

[0024] Optionally, the main body and the buffer structure are integrally formed.

[0025] According to a second aspect of the present disclosure, a fuse is provided, wherein the fuse comprises the above-mentioned conductive plate.

[0026] According to a third aspect of the present disclosure, there is also provided an electrical device, wherein the electrical device comprises the above-mentioned fuse.

[0027] A fourth aspect of the present disclosure further provides a vehicle, wherein the vehicle includes the above-mentioned fuse or the vehicle includes the above-mentioned electrical equipment.

[0028] Through the above technical solution, that is, the conductive plate disclosed in the present invention includes a main body having a broken bend portion and a buffer structure connected to the main body and arranged on one side of the broken bend portion. The buffer structure can at least partially abut against the broken bend portion when the broken bend portion is broken, absorb the impact energy carried by the broken bend portion, avoid the broken bend portion from acting on other components due to excessive deformation, and protect other nearby structures or devices.

[0029] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure.

[0031] Figure 1 This is a structural diagram of a conductive plate before it breaks, provided in some embodiments of the present disclosure.

[0032] Figure 2 This is a structural diagram of a conductive plate after being broken provided in some embodiments of the present disclosure.

[0033] Description of Reference Numerals

[0034] 110-main body; 111-broken bending part; 111a-bending part; 111b-breaking part; 1111-first arcuate surface; 112-first connecting section; 113-second connecting section; 1101-first notch; 1102-second notch; 1103-third notch; 1104-first connecting terminal; 1105-second connecting terminal; 120-buffering structure; 121-raised part; 1211-second arcuate surface. DETAILED DESCRIPTION

[0035] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0036] In the present disclosure, unless otherwise stated, the directional words used, such as "inside" and "outside", refer to the contours of the corresponding parts themselves. In addition, F in the figure expresses the force, that is, the force acting on the fracture bending of the body. The terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element and have no order or importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0037] In excitation fuses, pyrotechnic circuit breakers and quick disconnect devices, there are usually conductive plates. When an accident occurs, the conductive plates can be quickly cut off to disconnect the circuit, reducing or avoiding the occurrence of subsequent disasters. Therefore, when designing the conductive plates, it should be ensured that they are easy to cut off quickly.

[0038] In the related art, the conductive plate is installed in the moving direction of the power device, which can realize the cutting function under the impact of the power device. However, the above technology has the following disadvantages.

[0039] First, after the conductive plate is broken by impact, part of the impact energy of the impact head is transferred to the broken curved part, which continues to move in the impact direction and is likely to cause damage to other structures on the forward route.

[0040] Second, in order to ensure a high cutting speed, a large impact energy is sometimes used, which may cause the broken and bent part of the conductive plate to be completely separated from the conductive plate body, accompanied by the generation of conductive debris, which may affect the normal operation of other nearby devices.

[0041] The purpose of the present disclosure is to provide a conductive plate, a fuse, an electrical device and a vehicle, wherein the conductive plate can prevent the broken curved portion 111 from being completely separated from the body 110 due to excessive deformation, thereby protecting other nearby structures or devices.

[0042] In order to achieve the above purpose, Figure 1 to Figure 2 As shown, an embodiment of the present disclosure provides a conductive plate, which includes a body 110 and a buffer structure 120. The body 110 includes a broken curved portion 111; the buffer structure 120 is connected to the body 110, and the buffer structure 120 is located on one side of the broken curved portion 111 and is spaced apart from the broken curved portion 111, so as to at least partially abut against the broken curved portion 111 when the broken curved portion 111 is disconnected.

[0043] Through the above technical solution, the conductive plate includes a main body 110 having a broken bend 111 and a buffer structure 120 connected to the main body 110 and arranged on one side of the deformation direction of the broken bend 111 (the opposite side of the impact force). The buffer structure 120 can at least partially abut against the broken bend 111 when the broken bend 111 is broken, absorb the impact energy carried by the broken bend 111, and prevent the broken bend 111 from acting on other components due to excessive deformation, or completely separating from the main body 110, thereby protecting other nearby structures or devices.

[0044] It should be noted that if Figure 1 As shown, the deformation direction in this embodiment refers to the left side of the body 110 , and the force direction refers to the right side of the body 110 .

[0045] like Figure 1As shown, in some embodiments, the body 110 further includes a first connecting segment 112 and a second connecting segment 113 respectively connected to both ends of the broken curved portion 111; and the buffer structure 120 is connected to the first connecting segment 112 and / or the second connecting segment 113. The first connecting segment 112 is connected to one end of the broken curved portion 111, and the second connecting segment 113 is connected to the other end of the broken curved portion 111. The buffer structure 120 can be arranged on the first connecting segment 112 or the second connecting portion, and can support the broken curved portion 111 on the back side of the force direction of the broken curved portion 111 after breaking, so as to prevent it from affecting other components.

[0046] 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 fractured curved portion 111 .

[0047] like Figure 1 and Figure 2 As shown, in one embodiment, the buffer structure 120 is connected to the first connecting section 112, and a bending section 111a is formed at the junction of the first connecting section 112 and the broken bending section 111; a breaking section 111b is formed between the second connecting section 113 and the broken bending section 111. The setting of the bending section 111a enables the broken bending section 111 to be bent and deformed preferentially at this position, and the setting of the breaking section 111b enables the broken bending section 111 to be disconnected preferentially at this position, thereby better realizing power off. Therefore, due to the setting of the bending section 111a and the breaking section 111b, when the broken bending section 111 is subjected to force, the broken bending section 111 can be disconnected at the breaking section 111b, and bend in the deformation direction at the bending section 111a, thereby preventing the broken bending section 111 of the conductive plate from being completely separated from the body 110 due to excessive deformation, thereby protecting other nearby structures or devices.

[0048] In addition, since the buffer structure 120 and the first connecting section 112 are on the same side, after the conductive plate is cut off, the buffer structure 120 is fixedly connected to a portion of the broken bent portion 111 (the first connecting section 112), and the contact between the broken bent portion 111 and the buffer structure 120 will not cause an arc, thereby improving safety performance.

[0049] The bending portion 111a and the breaking portion 111b may be constructed in any suitable structure. Figure 1As shown, in some embodiments, the curved portion 111a includes a first notch 1101 located at the junction of the first connecting section 112 and the broken curved portion 111; the broken portion 111b includes a second notch 1102 located at the junction of the second connecting section 113 and the broken curved portion 111. The first notch 1101 and the second notch 1102 are used to reduce the strength of the corresponding positions, so that the broken curved portion 111 can be bent and broken better when subjected to force (such as being hit). The first notch 1101 and the second notch 1102 can both adopt any suitable shape, such as a V-shaped or U-shaped notch, so as to reduce the width of the conductive plate at the corresponding position and reduce the strength at that position.

[0050] In some embodiments, in order to directional breakage of 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 bend without breaking, while the breaking portion 111b has less strength and breaks first.

[0051] The first notch 1101 and the second notch 1102 are used to reduce the strength of the corresponding positions to facilitate bending and breaking. Therefore, they can be set on the same side or opposite sides where the first connecting section 112 and the broken curved portion 111 and the second connecting section 113 and the broken curved portion 111 meet. In some embodiments, the first notch 1101 and the second notch 1102 are respectively located on two opposite sides of the width direction of the body 110. Figure 1 As shown, the first notch 1101 may be a V-shaped notch provided on the side of the conductive plate away from the buffer structure 120, and the second notch 1102 may be a V-shaped notch provided on the side of the conductive plate toward the buffer structure 120. It should be noted that the above-mentioned V-shaped and U-shaped notches are exemplary and may also be other shapes that can reduce strength, which are not specifically limited here.

[0052] In order to facilitate the breaking of the breaking portion 111b, and at the same time ensure that the position can have a certain width to meet the current flow requirements, such as Figure 1As shown, in some embodiments, a third notch 1103 is formed at one end of the broken curved portion 111 close to 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. The third notch 1103 can face the force direction of the broken curved portion 111, and can be located between the first notch 1101 and the second notch 1102 and closer to the second notch 1102. The third notch 1103 can form a relatively weak part in the direction of the punch of the impact device on the broken curved portion 111, which is convenient for deformation after force is applied, so that the portion between the third notch 1103 and the second notch 1102 can always be in contact with the punch, so that the force is always applied to the broken curved portion 111, thereby facilitating the breakage of the broken portion 111b.

[0053] In addition, the arrangement of the third notch 1103 can further reduce the strength of the fracture portion 111b, which is conducive to fracture when subjected to force; on the other hand, the fracture portion 111b can have a sufficient width to facilitate the flow of current. It is worth noting that the third notch 1103 can be constructed in any suitable structure, including but not limited to a V-shaped notch, a U-shaped notch, a semicircular notch, etc.

[0054] The buffer structure 120 can be constructed using any suitable structure, such as Figure 1 As shown, in some embodiments, the buffer structure 120 is constructed as a protrusion 121 extending in a direction away from the first connecting section 112; the side of the broken curved portion 111 facing the protrusion 121 is constructed as a first arcuate surface 1111; the protrusion 121 is formed with a second arcuate surface 1211 corresponding to the first arcuate surface 1111. When the broken curved portion 111 is broken, the second arcuate surface 1211 can contact with the first arcuate surface 1111 to increase the contact area between the two, so that the buffer structure 120 can better support the broken curved portion 111. It should be noted that, the entire broken curved portion 111 is generally a semicircular structure, the first arcuate surface 1111 is a curved surface convex toward the buffer structure 120, and the second arcuate surface 1211 is a curved surface corresponding to the first arcuate surface 1111.

[0055] In some embodiments, the first curved surface 1111 and the second curved surface 1211 are located on two concentric circles with the same center, that is, the contour of the first curved surface 1111 and the contour of the second curved surface 1211 are located on two concentric circles, and the radius of the second curved surface 1211 is greater than the radius of the first curved surface 1111, so that when the broken bend 111 breaks, the first curved surface 1111 can be supported by the second curved surface 1211 of the buffer structure. Since they are both curved surfaces and are located on two concentric circles with the same center, they can have a larger support area.

[0056] The protrusion 121 may be in any suitable shape, such as Figure 1 As shown, in some embodiments, the width of the protrusion 121 gradually decreases along the direction away from the first connecting section 112. Through the above arrangement, that is, the protrusion 121 extends from the end close to the first connecting section 112 to the second connecting section 113, and its width gradually decreases. In addition, the advantage of such an arrangement is that it can ensure that the buffer structure 120 can more stably support the broken curved section 111 when the broken curved section 111 is broken, so as to prevent it from being completely separated from the body 110. It should be noted that the width of the protrusion 121 refers to Figure 1 The left-right dimension of the raised portion 121.

[0057] In order to achieve the connection of the conductive plate, Figure 1 As shown, optionally, a first terminal 1104 is formed at one end of the first connecting section 112 and the second connecting section 113 away from the broken curved portion 111. That is, a first terminal 1104 is formed at one end of the first connecting section 112 away from the broken curved portion 111, and another first terminal 1104 is formed at one end of the second connecting section 113 away from the broken curved portion 111. The first terminal 1104 is used to connect the conductive plate to the circuit.

[0058] like Figure 1 As shown, in some embodiments, the first connection section 112 and the second connection section 113 are respectively formed with a second terminal 1105 at one end close to the broken curved portion 111. That is, the first connection section 112 is formed with a second terminal 1105 at one end close to the broken curved portion 111, and the second connection section 113 is formed with another second terminal 1105 at one end close to the broken curved portion 111 (for example, the side of the buffer structure 120), and the two second terminals 1105 can be connected by a conductive member or a fuse.

[0059] The first terminal 1104 and the second terminal 1105 may adopt related structures known in the related art. For example, the first terminal 1104 and the second terminal 1105 may be formed by setting mounting holes on the first connecting section 112 and the second connecting section 113 .

[0060] Optionally, the body 110 and the buffer structure 120 are integrally formed. The buffer structure 120 and the body 110 may be integrally formed, for example, by stamping, cutting, or casting, and the structure is simple and easy to manufacture.

[0061] The embodiment of the present disclosure provides a fuse, which includes the above-mentioned conductive plate, and therefore, the fuse also has all the advantages of the above-mentioned conductive plate. It should be noted that the fuse also includes a cutting piece and a driving mechanism corresponding to the conductive plate. At the same time, it also includes other corresponding parts necessary for the fuse, which will not be described one by one here.

[0062] An embodiment of the present disclosure provides an electrical device, which includes the above-mentioned fuse. Therefore, the electrical device also has all the advantages of the above-mentioned fuse.

[0063] It should be noted that the electrical equipment may be a distribution box, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecrafts, etc.; electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical equipment.

[0064] The embodiments of the present disclosure also provide a vehicle, which includes the above-mentioned fuse or the vehicle includes the above-mentioned electrical equipment, so the vehicle also has all the advantages of the above-mentioned fuse and electrical equipment, which will not be repeated here. The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.

[0065] The conductive plate, fuse, electrical equipment and vehicle disclosed in the present invention include a main body 110 having a broken curved portion 111 and a buffer structure 120 connected to the main body 110 and arranged on one side of the deformation direction of the broken curved portion 111. The buffer structure 120 can at least partially abut against the broken curved portion 111 when the broken curved portion 111 is disconnected, absorb the impact energy carried by the broken curved portion 111, avoid the broken curved portion 111 from being completely separated from the main body 110 due to excessive deformation, and protect other nearby structures or devices.

[0066] Furthermore, the buffer structure 120 and the body 110 are integrated into one body, and the structure is simple and easy to manufacture.

[0067] Furthermore, after the conductive plate is cut off, the buffer structure 120 is fixedly connected to a portion of the continuously broken bent portion 111 , and the contact between the broken bent portion 111 and the buffer structure 120 will not cause an arc.

[0068] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0069] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0070] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A conductive plate, characterized in that: include: a body, including a fractured bend; and A buffer structure is connected to the body, and the body and the buffer structure are integrally formed; the buffer structure is located on one side of the broken curved portion, and the buffer structure is spaced apart from the broken curved portion so as to at least partially abut against the broken curved portion when the broken curved portion is disconnected.

2. The conductive plate according to claim 1, characterized in that The body further comprises a first connecting section and a second connecting section respectively connected to two ends of the broken curved portion; The buffer structure is connected to the first connecting section and / or the second connecting section.

3. The conductive plate according to claim 2, characterized in that: The buffer structure is connected to the first connecting section, and a bending portion is formed at the junction of the first connecting section and the broken bending portion; A breaking portion is formed between the second connecting section and the breaking curved portion.

4. The conductive plate according to claim 3, characterized in that: The curved portion includes a first notch located at the junction of the first connecting section and the broken curved portion; The fracture portion includes a second notch located at the junction of the second connecting section and the fractured curved portion.

5. The conductive plate according to claim 3, characterized in that: The width of the bent portion is greater than the width of the broken portion.

6. The conductive plate according to claim 4, characterized in that: The first notch and the second notch are respectively located on two opposite side surfaces in the width direction of the body.

7. The conductive plate according to claim 4, characterized in that: A third notch is formed at one end of the broken curved portion close to the second notch, and the third notch and the first notch are both located on the same side in the width direction of the body.

8. The conductive plate according to claim 3, characterized in that: The buffer structure is configured as a protrusion extending in a direction away from the first connecting section; The side surface of the broken curved portion facing the raised portion is configured as a first arc-shaped surface; The protrusion is formed with a second arc-shaped surface corresponding to the first arc-shaped surface.

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

10. The conductive plate according to claim 8, characterized in that The width of the protrusion gradually decreases in a direction away from the first connecting section.

11. The conductive plate according to claim 3, characterized in that: A first terminal is formed at one end of the first connecting section and the second connecting section away from the broken curved portion; and / or A second connecting terminal is formed at one end of the first connecting section and the second connecting section close to the broken curved portion respectively.

12. A fuse, characterized in that: The fuse comprises the conductive plate according to any one of claims 1-11.

13. An electrical equipment, characterized in that: The electrical equipment comprises the fuse according to claim 12.

14. A vehicle, characterized in that: The vehicle includes the fuse according to claim 12 or the vehicle includes the electrical equipment according to claim 13.

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