High voltage fuse link

Abstract

The utility model belongs to the technical field of electric connector, especially high pressure fuse connector, including socket and plug, socket includes insulating shell and fuse, fuse includes main pipe and the contact and the insert piece of connecting both ends of main pipe, and the insert piece and plug plug-in cooperation realize electric connection, the first accommodating cavity and the second accommodating cavity that insulating shell is respectively equipped with each other through, fuse and the first accommodating cavity plug-in cooperation, and the first accommodating cavity is equipped with the through -hole that can supply the contact to pass away from the one end of second accommodating cavity, the insert piece of second accommodating cavity is inserted and the appearance of resistance block is matched, is equipped with the top piece on the inner side wall of second accommodating cavity, is equipped with the avoidance groove on the outer side wall of resistance block, is equipped with the tablet in avoidance groove, the surface of tablet is equipped with the baulk. The utility model with more simple structure realizes that fuse can be replaced in electric connector fast, and assembly is more close, firm, also not easy because the vibration of using environment causes the loosening of quick -release structure.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically to high-voltage fusible connectors. Background Technology

[0002] In electrical connectors, fuses are typically connected in series in the conductive path as a protective element in the circuit. Their function is equivalent to a "fusible wire." The two ends of the fuse are usually directly electrically connected to the conductive terminals (such as the plug) of the connector, forming a complete conductive path. Under normal operation, the fuse acts as a conductor connecting the circuit; when an overload occurs, the fuse melts to cut off the circuit, achieving overcurrent protection.

[0003] In existing electrical connectors, fuses using traditional threaded or clamp-type fixing methods are complex to operate and affect replacement efficiency. While elastic snap or quick-connect designs can achieve replacement in seconds, they are prone to loosening due to elastic decay or loss of control over the insertion force under vibration or impact environments.

[0004] Therefore, this application proposes a high-voltage fusible connector that combines secure and reliable installation with quick replacement. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-voltage fusible connector, which solves the problem that existing high-voltage fusible connectors are difficult to combine secure installation with quick replacement functionality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage fuse connector, including a socket and a plug, wherein the socket includes an insulating shell and a fuse, the fuse includes a main pipe and contacts and inserts connecting the two ends of the main pipe, the inserts and plugs are plugged in to achieve electrical connection, the insulating shell is provided with a first receiving cavity and a second receiving cavity that are mutually connected, the fuse is plugged in to the first receiving cavity, and the end of the first receiving cavity away from the second receiving cavity is provided with a through hole through which the contacts can pass; The second receiving cavity is fitted with a matching abutment block; the inner side wall of the second receiving cavity is provided with a top block, the outer side wall of the abutment block is provided with a clearance groove, the clearance groove is provided with a pressure plate, the surface of the pressure plate is provided with a stop block, and the abutment block is provided with a through groove through which the insert can pass.

[0007] Preferably, the end of the pressure plate near the plug extends beyond the stop block and reaches the end face of the abutment block.

[0008] Preferably, the groove is replaced by a top block, the surface of the abutment block is provided with a relief groove, and the pressure plate is disposed in the relief groove.

[0009] Preferably, the abutment block has clearance grooves and pressure plates on both opposite sides.

[0010] Preferably, both the top block and the stop block are trapezoidal or triangular, with the inclined surface of the top block facing the opening of the second receiving cavity and the inclined surface of the stop block facing the first receiving cavity.

[0011] Preferably, one end of the pressing plate near the first receiving cavity is connected to the surface of the abutment, and the other end of the pressing plate is a free end.

[0012] Preferably, the plug has a wire clamp that mates with the insert, and the other end of the wire clamp is used to connect the wire harness.

[0013] Preferably, the insulating shell is further provided with a third receiving cavity that extends through both ends of the insulating shell, and the third receiving cavity is used to install the connecting terminal.

[0014] Preferably, the socket further includes a socket housing and a shielding cover, wherein the shielding cover is slidably connected inside the socket housing and the insulating shell is slidably connected inside the shielding cover.

[0015] Preferably, the outer wall of the insulating shell is provided with a first slot at one end near the second receiving cavity, the inner wall of the socket shell is provided with a second slot at one end away from the plug, the outer wall of the shield is provided with a first abutment corresponding to the first slot and a second abutment corresponding to the second slot, the first abutment is inclined downward at one end near the plug, the second abutment is inclined upward at one end near the plug, and the inner side of the opening edge of the shield near the plug is provided with an inward protrusion.

[0016] Preferably, the socket housing is L-shaped, the bottom end of the socket housing is provided with a mounting hole, and the socket housing is also provided with a first socket terminal for mating and connecting terminals and a second socket terminal for mating and connecting contacts.

[0017] Compared with the prior art, the present invention provides a high-voltage fusible connector, which has the following advantages: This high-voltage fuse connector achieves quick replacement of the fuse in electrical connectors with a relatively simple structure, and the assembly is relatively tight and secure, and the quick-release structure is not easily loosened due to vibration in the operating environment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of this high-voltage fusible connector; Figure 2 This is a schematic diagram of the architecture of this high-voltage fuse connector; Figure 3 This is an exploded view of the high-voltage fusible connector; Figure 4 This is a schematic diagram of the assembly of this high-voltage fusible connector; Figure 5 This is a three-dimensional structural diagram of the abutment block in this high-voltage fusible connector.

[0019] In the picture: 1. Socket housing; 11. Second slot; 12. Mounting hole; 13. First socket terminal; 14. Second socket terminal; 2. Socket; 21. Insulating shell; 211. First receiving cavity; 2111. Through hole; 212. Second receiving cavity; 2121. Top block; 213. Third receiving cavity; 214. First slot; 22. Fuse; 221. Main pipe; 222. Contact; 223. Insert; 23. Abutment; 231. Clearance groove; 232. Pressure plate; 2321. Stop block; 233. Through groove; 24. Connecting terminal; 3. Plug; 31. Wire clamp; 32. Wire harness; 4. Shielding cover; 41. First abutment; 42. Second abutment; 43. Protrusion. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please see Figure 1-5 This utility model provides the following technical solution: a high-voltage fusible connector, including a socket 2 and a plug 3. The socket 2 includes an insulating shell 21 and a fuse 22. The fuse 22 includes a main pipe 221 and contacts 222 and inserts 223 connecting the two ends of the main pipe 221. The inserts 223 and the plug 3 are plugged in to achieve electrical connection. The insulating shell 21 has a first receiving cavity 211 and a second receiving cavity 212 that are mutually penetrating. The fuse 22 is plugged in to the first receiving cavity 211. Furthermore, the first receiving cavity 211 is provided with a through hole 2111 at the end away from the second receiving cavity 212, through which the contact 222 can pass; a matching abutment block 23 is inserted into the second receiving cavity 212; a top block 2121 is provided on the inner side wall of the second receiving cavity 212, a relief groove 231 is provided on the outer side wall of the abutment block 23, a pressure plate 232 is provided in the relief groove 231, a stop block 2321 is provided on the surface of the pressure plate 232, and a through groove 233 is provided in the abutment block 23, through which the insert 223 can pass.

[0022] As an optional implementation of this utility model, the contact 222 of the fuse 22 is used to connect the wire, and the plug 223 is used to connect the plug 3. The plug 3 is the terminal of the wire harness 32 in the prior art. The plug 223 and the plug 3 are plugged in to achieve electrical connection.

[0023] When replacing or removing fuse 22, with the circuit disconnected and safety ensured (wearing appropriate insulating protective equipment), press the pressure plate 232 with your fingers or a tool (such as a clamp) to displace the stop block 2321 on the pressure plate 232 towards the surface of the abutment block 23, causing the stop block 2321 to disengage from the contact with the top block 2121. At this point, the abutment block 23 can be pulled out, exposing the port of the first receiving cavity 211, and the fuse 22 can be removed from the first receiving cavity 211. On the other hand, when installing a new fuse 22, the fuse 22 is pushed into the first receiving cavity 211, and the contact 222 extends out from the through hole 2111 to connect the wire. The pressure plate 232 on the abutment 23 is pressed down, and the abutment 23 is installed into the second receiving cavity 212. After releasing the pressure plate, the abutment 23 can block the stop block 2321, so that the abutment 23 is stuck in the second receiving cavity 212. Since the removal of the abutment 23 requires pressing the pressure plate 232 to unlock it, and the shape of the abutment 23 itself matches the shape of the second receiving cavity 212, and the pressure plate 232 is not on the outer surface of the abutment 23, the elasticity of the pressure plate 232 will not decrease when vibration occurs, thus preventing the insertion force of the abutment 23 from failing and preventing the abutment 23 from becoming loose.

[0024] Since the first receiving cavity 211 and the second receiving cavity 212 actually form the structure of a countersunk hole, when the abutment 23 is pushed into the second receiving cavity 212, the abutment 23 and the first receiving cavity 211 together apply contact pressure to the fuse 22, thereby improving the installation firmness of the fuse 22 in this connector.

[0025] In this embodiment, the number and distribution of the clearance slots 231 are not limited. The specific implementation of the fuse 22 can be achieved using existing technology. It should be understood that this technical solution can be directly applied to the connection in a circuit.

[0026] By adopting this implementation method, the fuse 22 can be quickly replaced in the electrical connector with a relatively simple structure, and the assembly is relatively tight and firm, and it is not easy for the quick-release structure to loosen due to vibration of the use environment.

[0027] Example 2: Please see Figure 1-5This utility model provides the following technical solution: a high-voltage fusible connector, including a socket 2 and a plug 3. The socket 2 includes an insulating shell 21 and a fuse 22. The fuse 22 includes a main pipe 221 and contacts 222 and inserts 223 connecting the two ends of the main pipe 221. The inserts 223 and the plug 3 are plugged in to achieve electrical connection. The insulating shell 21 has a first receiving cavity 211 and a second receiving cavity 212 that are mutually connected. The fuse 22 is plugged in to the first receiving cavity 211, and the end of the first receiving cavity 211 away from the second receiving cavity 212 has a through hole 2111 through which the contacts 222 can pass. A matching abutment 23 is inserted into the second receiving cavity 212; a top block 2121 is provided on the inner side wall of the second receiving cavity 212, and a relief groove 231 is provided on the two opposite outer side walls of the abutment 23. A pressure plate 232 is provided in the relief groove 231, and a stop block 2321 is provided on the surface of the pressure plate 232. A through groove 233 is provided in the abutment 23 for the insert 223 to pass through; one end of the pressure plate 232 near the first receiving cavity 211 is connected to the surface of the abutment 23, and the end of the pressure plate 232 near the plug 3 is a free end. The free end of the pressure plate 232 passes over the stop block 2321 and extends to the end face of the abutment 23.

[0028] As an optional implementation of this utility model, compared with Embodiment 1, this embodiment further defines the position of the pressure plate 232, that is, the stop block 2321 is not located at the end of the pressure plate 232, which provides operable space for pressing the pressure plate 232. Based on this, the pressure plate 232 can be slightly upturned, or it can be parallel to the surface of the abutment block 23. That is, the pressure plate 232 can be in slight pressure contact with the abutment block 23, or it can be released without pressure or not in contact at all. These configurations can alleviate the problem of elastic attenuation of the pressure plate 232 when the abutment block 23 is installed in the second receiving cavity 212 for a long time.

[0029] Furthermore, both the top block 2121 and the stop block 2321 are trapezoidal or triangular, with the inclined surface of the top block 2121 facing the opening of the second receiving cavity 212 and the inclined surface of the stop block 2321 facing the first receiving cavity 211.

[0030] As an optional implementation of this utility model, it eliminates the need to press the pressure plate 232 when pushing in the abutment block 23, thereby improving the efficiency of rapid installation of the fuse 22.

[0031] Furthermore, a wire clamp 31 that mates with the insert 223 is fixedly connected inside the plug 3, and the other end of the wire clamp 31 is used to connect the wire harness 32.

[0032] As an optional implementation of this utility model, the plug 3 used to connect the wire harness 32 is actually plugged into the fuse 22. This is existing technology and will not be described in detail.

[0033] Furthermore, the insulating shell 21 is also provided with a third receiving cavity 213 that extends through both ends of the insulating shell 21. The third receiving cavity 213 is used to install the connecting terminal 24.

[0034] As an optional implementation of this utility model, the connecting terminal 24 is actually a prior art solution. In this technical solution, it can be regarded as a rigid metal conductor. It and the fuse 22 are both used to connect the circuit. The two ends of the connecting terminal 24 have the same or similar structure as the two ends of the fuse 22. They are both used to connect the wire and the clamp 31 to facilitate the connection of the plug 3.

[0035] Furthermore, the socket 2 also includes a socket housing 1 and a shielding cover 4. The shielding cover 4 is slidably connected inside the socket housing 1, and the insulating shell 21 is slidably connected inside the shielding cover 4. The outer side wall of the insulating shell 21 is provided with a first slot 214 at one end near the second receiving cavity 212, and the inner side wall of the socket housing 1 is provided with a second slot 11 at one end away from the plug 3. The outer wall of the shielding cover 4 is provided with a first abutment 41 corresponding to the first slot 214 and a second abutment 42 corresponding to the second slot 11. The first abutment 41 is inclined downward at one end near the plug 3, and the second abutment 42 is inclined upward at one end near the plug 3. The inner side of the opening edge of the shielding cover 4 near the plug 3 is provided with an inward protrusion 43. The socket housing 1 is L-shaped, and the bottom end of the socket housing 1 is provided with a mounting hole 12. The socket housing 1 is also provided with a first socket terminal 13 for mating and connecting the terminal 24 and a second socket terminal 14 for mating the contact head 222.

[0036] Using this implementation, the shield 4, being existing technology in electrical connectors, serves to prevent electromagnetic interference (EMI) and ensure the stability of signal transmission. During connector assembly, after installing the fuse 22, the connecting terminal 24 is inserted into the third receiving cavity 213. The insulating shell 21 is then inserted from the end of the shield 4 furthest from the protrusion 43. The first abutment 41 on the shield 4 springs into the first slot 214 on the insulating shell 21, with the protrusion 43 and the first abutment 41 together restricting further sliding of the insulating shell 21. The shield 4 is then pushed into the socket housing 1. Once in place, the second abutment 42 on the shield 4 springs into the second slot 11 on the socket housing 1, preventing the shield 4 from reversing and ensuring that the shield 4 and insulating shell 21 are pulled out when the plug 3 is inserted or removed. The L-shape of the socket housing 1 and the mounting hole 12 are for ease of installation at the application site. Specifically, it can be as follows... Figure 2-3 As shown, the first socket terminal 13 and the second socket terminal 14 are both slidably installed inside the socket housing 1. When the shielding cover 4 is installed, the connecting terminal 24 and the contact 222 on the fuse 22 are respectively inserted into the first socket terminal 13 and the second socket terminal 14 to realize the circuit connection.

[0037] The usage process of this utility model is as follows: Slide the first socket terminal 13 and the second socket terminal 14 into the socket housing 1, insert the fuse 22 into the first receiving cavity 211, and insert the stop block 23 into the second receiving cavity 212. The stop block 23 locks the stop block 2321 to realize the installation of the fuse 22; then install the connecting terminal 24 into the third receiving cavity 213, install the insulating shell 21 into the shielding cover 4, and install the shielding cover 4 into the socket housing 1. At this time, the connecting terminal 24 and the contact 222 on the fuse 22 are respectively inserted into the first socket terminal 13 and the second socket terminal 14. Then, connect the plug 3, the plug 223 and the connecting terminal 24.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-voltage fusible connector, comprising a socket and a plug, wherein the socket comprises an insulating shell and a fuse, the fuse comprises a main pipe and contacts and prongs connecting the two ends of the main pipe, the prongs engaging with the plug to achieve electrical connection, characterized in that, The insulating shell is provided with a first receiving cavity and a second receiving cavity that are interconnected. The fuse is inserted into the first receiving cavity, and the end of the first receiving cavity away from the second receiving cavity is provided with a through hole through which the contact can pass. The second receiving cavity is fitted with a matching abutment block; the inner side wall of the second receiving cavity is provided with a top block, the outer side wall of the abutment block is provided with a clearance groove, the clearance groove is provided with a pressure plate, the surface of the pressure plate is provided with a stop block, and the abutment block is provided with a through groove through which the insert can pass.

2. The high-voltage fusible connector according to claim 1, characterized in that, The end of the pressure plate near the plug extends past the stop block and reaches the end face of the abutment block.

3. The high-voltage fusible connector according to claim 2, characterized in that, The block has clearance grooves and pressure plates on both opposite sides.

4. The high-voltage fusible connector according to claim 3, characterized in that, Both the top block and the stop block are trapezoidal or triangular, with the inclined surface of the top block facing the opening of the second receiving cavity and the inclined surface of the stop block facing the first receiving cavity.

5. The high-voltage fusible connector according to claim 4, characterized in that, The end of the pressing plate near the first receiving cavity is connected to the surface of the abutment, and the other end of the pressing plate is a free end.

6. The high-voltage fusible connector according to claim 4, characterized in that, The plug has a wire clamp that mates with the insert, and the other end of the wire clamp is used to connect the wire harness.

7. The high-voltage fusible connector according to claim 5, characterized in that, The insulating shell is further provided with a third receiving cavity that extends through both ends of the insulating shell. The third receiving cavity is used to install the connecting terminal.

8. The high-voltage fusible connector according to claim 7, characterized in that, The socket also includes a socket housing and a shielding cover, wherein the shielding cover is slidably connected inside the socket housing and the insulating shell is slidably connected inside the shielding cover.

9. The high-voltage fusible connector according to claim 8, characterized in that, The outer wall of the insulating shell is provided with a first slot at one end near the second receiving cavity, and the inner wall of the socket shell is provided with a second slot at one end away from the plug. The outer wall of the shield is provided with a first abutment corresponding to the first slot and a second abutment corresponding to the second slot. The first abutment is inclined downward at one end near the plug, and the second abutment is inclined upward at one end near the plug. The inner side of the opening edge of the shield near the plug is provided with an inward protrusion.

10. The high-voltage fusible connector according to claim 8, characterized in that, The socket housing is L-shaped, and the bottom end of the socket housing is provided with a mounting hole. The socket housing is also provided with a first socket terminal for mating and connecting terminals and a second socket terminal for mating and connecting contacts.

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