Fuse socket cap
By designing a combination of a rectangular socket without red P and a circular socket cap, combined with the method of increasing wall thickness and setting exhaust ports, the problem of existing circular fuse devices being prone to break during short circuit tests is solved, achieving higher breaking capabilities and simplified manufacturing process.
Patent Information
- Application Number
- CN202411188746.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-06
- Filing Date
- 2024-08-28
- Publication Date
- 2025-03-07
AI Technical Summary
The existing circular fuse device without the Red P version is prone to cause the socket cap to rupture or the fuse body to break during short-circuit test, and cannot pass the test effectively.
A fuse socket cap without red P is designed which can be used in conjunction with rectangular or circular fuses, by designing a rectangular socket in the socket cap to receive the rectangular fuse and improving breaking capacity by increasing wall thickness and providing exhaust ports in the socket.
By improving the breaking capability of the fuse socket cap, the socket cap rupture or fuse breaking can be effectively avoided in the short circuit test, ensuring the success of the test, and simplifying the manufacturing process and reducing costs by removing sand fillers and ceramic paper.
Smart Images
Figure CN119581289A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure generally relates to fuse devices and more particularly to a fuse socket cap. Background Art
[0002] Some known fuse devices are Red P versions, which means that these fuse devices include red phosphorus. Known Red P fuses are round. Likewise, the socket caps for receiving such fuses are also round. For example, FIG. 1A is a perspective view of a round fuse known in the art and containing red phosphorus in a round socket cap. In this regard, FIG. 1B is a top view of the round socket cap of FIG. 1A, and FIG. 1C is a cross-sectional schematic diagram of the round fuse in the round socket cap of FIG. 1A.
[0003] The fuse device without red phosphorus version (meaning without red phosphorus) is also known in the art, and is advantageous for environmental reasons. However, the known fuse without red phosphorus is rectangular. Similarly, the socket cap for receiving such fuse is also rectangular. For example, FIG. 2A is a cross-sectional perspective view of a rectangular fuse known in the art and without red phosphorus in a rectangular socket cap. In this regard, FIG. 2B is a cross-sectional side view of the rectangular fuse in the rectangular socket cap of FIG. 2A, and FIG. 2C is a cross-sectional schematic view of the rectangular fuse in the rectangular socket cap of FIG. 2A.
[0004] Previous attempts to manufacture round fuse devices without the Red P version resulted in failures during short circuit testing. In particular, when testing the round fuse devices without the Red P version, the socket cap of the fuse device was cracked or the body of the fuse broke.
[0005] In view of the above, there is an ongoing need for improved devices. Summary of the invention
[0006] This Summary is provided to introduce some concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be an aid in determining the scope of the claimed subject matter.
[0007] In some embodiments, a fuse device according to the present disclosure may include a rectangular fuse and a round fuse socket cap, which may include a rectangular socket for receiving the fuse. The fuse socket cap and the fuse may not contain red phosphorus, and the rectangular socket may occupy a percentage of the surface area or volume of the fuse socket cap that is below a predetermined threshold to prevent the breaking capacity of the round fuse socket cap from being reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1A is a perspective view showing a fuse device known in the prior art.
[0009] FIG. 1B is a top view showing a socket cap known in the prior art.
[0010] FIG. 1C is a schematic cross-sectional view showing a fuse device known in the prior art.
[0011] FIG. 2A is a cutaway perspective view showing a fuse device known in the prior art.
[0012] FIG. 2B is a cross-sectional side view showing a fuse device known in the prior art.
[0013] FIG. 2C is a schematic cross-sectional view showing a fuse device known in the prior art.
[0014] Figure 3A is an exploded perspective view showing a fuse device according to an embodiment of the present disclosure.
[0015] Figure 3B is a perspective view showing a fuse socket cap according to an embodiment of the present disclosure.
[0016] Figure 3C is a perspective view showing a fuse device according to an embodiment of the present disclosure.
[0017] Figure 3D is a bottom schematic diagram showing a fuse socket cap according to an embodiment of the present disclosure.
[0018] Figure 4A is a perspective view showing a fuse socket cap according to an embodiment of the present disclosure.
[0019] Figure 4B is a bottom view showing a fuse device according to an embodiment of the present disclosure.
[0020] Figure 4C is a bottom schematic diagram showing a fuse socket cap according to an embodiment of the present disclosure.
[0021] Figure 5 is a perspective view showing a fuse socket cap according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0022] Exemplary embodiments of fuse socket caps according to the present disclosure will now be described more fully below with reference to the accompanying drawings. However, fuse socket caps may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will convey certain exemplary aspects of fuse socket caps to those skilled in the art.
[0023] As disclosed herein, the fuse socket cap can be red-P-free, meaning free of red phosphorus, and can be round. Nevertheless, the fuse socket cap can be used in conjunction with either a rectangular fuse or a round fuse. For example, when the fuse socket cap is used in conjunction with a rectangular fuse, the fuse socket cap can include a rectangular socket capable of receiving and accommodating a rectangular fuse. However, when the fuse socket cap is used in conjunction with a round fuse, the fuse socket cap can include a round socket capable of receiving and accommodating a round fuse.
[0024] Importantly, the fuse socket caps disclosed herein can be modular in design. Thus, the fuse socket caps can be manufactured in the same manner for use with both rectangular and circular fuses, requiring only the shape of the socket therein to be modified. For example, when molded, the fuse socket cap can be molded using one mold, wherein the molding tool or molding capillary can be modified to form a rectangular or circular socket. Similarly, when 3D printed, the fuse socket cap can be printed using one model, wherein the socket is modified to be rectangular or circular.
[0025] Advantageously, when manufacturing a fuse socket cap for use with a rectangular fuse, the wall thickness of the fuse socket cap can be thicker than the wall thickness of devices known in the prior art, thereby improving the breaking capacity of the fuse socket cap relative to devices known in the prior art. In particular, when rectangular, the socket of the fuse socket cap can occupy a percentage of the surface area and / or volume of the fuse socket cap that is sufficiently low so that the wall of the fuse socket cap surrounding the socket has at least a predetermined thickness to achieve at least a predetermined breaking capacity.
[0026] In some embodiments, the socket may include an exhaust port to further improve the breaking capacity of the fuse socket cap. Specifically, the socket may include one or more exhaust ports along the outer periphery of the outer area of the socket to release exhaust gas and / or air pressure in the socket and prevent it from accumulating in the socket. For example, when the fuse is placed in the socket, the outer area of the socket can be enclosed and / or covered by the fuse therein, except for one or more exhaust ports in the outer periphery of the outer area of the socket, the one or more exhaust ports can remain open.
[0027] Known fuses include yarn, sand filler, and / or ceramic paper to absorb heat during a short circuit. However, as described above, because the breaking capacity of the fuse socket cap disclosed herein can be improved, larger yarns can be used in fuses used in combination with the fuse socket cap disclosed herein compared to devices known in the prior art. Similarly, as described above, because the breaking capacity of the fuse socket cap disclosed herein can be improved, sand filler and / or ceramic paper can be eliminated or removed in fuses used in combination with the fuse socket cap disclosed herein, thereby simplifying manufacturing and saving costs.
[0028] In some embodiments, the fuse socket cap may include a tab or notch on the outer surface of the fuse socket cap to facilitate orientation of the fuse relative to the socket of the fuse socket cap during assembly. In practice, when the socket is rectangular, the fuse must be oriented relative to the socket of the fuse socket cap to properly fit therein, and the tab or notch may identify the longitudinal direction of the socket for orienting the fuse without trial and error.
[0029] Figure 3A is an exploded perspective view of a fuse device according to an embodiment of the present disclosure. The fuse device may include a fuse socket cap and a fuse, both of which may be free of red phosphorus. It can be seen that the fuse socket cap may be circular and include a rectangular socket therein for receiving the fuse, the socket being rectangular. It can also be seen that the fuse socket cap may include a contact point on an outer surface of the fuse socket cap to facilitate orientation of the fuse relative to the socket of the fuse socket cap during assembly.
[0030] Figure 3B yes Figure 3A A perspective view of a fuse socket cap of FIG. 1. It can be seen that the socket can be open in the bottom direction of the fuse socket cap. It can also be seen that the socket of the fuse socket cap can occupy a percentage of the surface area and / or volume of the fuse socket cap that is low enough so that the wall of the fuse socket cap surrounding the socket has at least a predetermined thickness to achieve at least a predetermined breaking capacity.
[0031] Figure 3C yes Figure 3A It can be seen that when the fuse is placed in the socket, the outer area of the socket can be enclosed and / or covered by the fuse therein.
[0032] Figure 3D yes Figure 3A It should be understood that Figure 3DThe dimensions of the fuse socket cap, the socket of the fuse socket cap, and the walls of the fuse socket cap shown in are merely exemplary, and other dimensions are within the spirit and scope of the disclosed embodiments.
[0033] Figure 4A is a perspective view of a fuse socket cap according to an embodiment of the present disclosure. Figure 4A In the illustrated embodiment, the socket of the fuse socket cap may include an exhaust port to improve the breaking capacity of the fuse socket cap. Specifically, the socket may include one or more exhaust ports along the outer periphery of the outer area of the socket to release the exhaust gas and / or air pressure in the socket and prevent it from accumulating in the socket.
[0034] Figure 4B yes Figure 4A Bottom view of a fuse device. It can be seen that when the fuse is placed in the socket, the outer area of the socket can be enclosed and / or covered by the fuse therein, except for one or more exhaust ports in the outer periphery of the outer area of the socket, which can remain open.
[0035] Figure 4C yes Figure 4A It should be understood that Figure 4C The dimensions of the fuse socket cap, the socket of the fuse socket cap, and the walls of the fuse socket cap shown in are merely exemplary, and other dimensions are within the spirit and scope of the disclosed embodiments.
[0036] Figure 5 is a perspective view of a fuse socket cap according to an embodiment of the present disclosure. Figure 5 As can be seen in the illustrated embodiment, the fuse socket cap may include a notch on an outer surface of the fuse socket cap to aid in the orientation of the fuse relative to the socket of the fuse socket cap during assembly.
[0037] As used herein, an element or step described in the singular and beginning with the word "a" or "an" should be understood as not excluding multiple elements or steps, unless such exclusion is explicitly stated. In addition, reference to "one embodiment" of the present disclosure is not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the described features.
[0038] Although the present disclosure has been made with reference to certain embodiments, many modifications, variations and changes may be made to the described embodiments without departing from the field and scope of the present disclosure as defined by the appended claims. Therefore, the object of the present disclosure is not to be limited to the described embodiments, but rather it has the full scope defined by the language of the appended claims and their equivalents.
Claims
1. A fuse device, comprising: Rectangular fuse; as well as a circular fuse socket cap, the circular fuse socket cap comprising a rectangular socket for receiving the fuse, wherein the fuse socket cap and the fuse do not contain red phosphorus, and The rectangular socket occupies a percentage of the surface area or volume of the fuse socket cap that is lower than a predetermined threshold to prevent the breaking capacity of the circular fuse socket cap from being reduced.