A manual maintenance switch with intelligent fuse

Abstract

The utility model discloses a manual maintenance switch with an intelligent fuse, including a switch plug and a switch socket matched therewith, wherein the switch plug is provided with an intelligent fuse, and the switch socket is provided with a signal circuit component and a power terminal component, and when the switch plug and the switch socket are matched, the intelligent fuse is respectively combined with the signal circuit component and the power terminal component. The utility model has an intelligent fuse designed in the plug, and a signal circuit component and a power terminal component designed in the socket, and a signal circuit and a current-carrying circuit are formed after the plug and the socket are plugged in, and the power supply is cut off by controlling the signal circuit, which can avoid the high temperature effect caused by slow fusing, avoid the risk of burning, and is also more convenient for detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of manual maintenance switches, and particularly relates to a manual maintenance switch with an intelligent fuse. Background Art

[0002] The manual maintenance switch, also known as the MSD switch, is a high-voltage connector with a fuse or a short-circuit copper busbar. It is an automotive accessory that can mechanically disconnect the high-voltage connection to protect the safety of maintenance personnel when performing high-voltage maintenance on electric vehicles.

[0003] Existing manual maintenance switches usually have traditional (high-temperature fusing) fuses. When a short circuit occurs, the fuse heats up and will not disconnect until the temperature rises to 800-900°C. When this temperature is reached, other plastic parts may also melt, and there is a serious risk of burning.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a manual maintenance switch with an intelligent fuse, so as to overcome the defects in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a manual maintenance switch with an intelligent fuse, including a switch plug and a switch socket matching therewith, the switch plug is provided with an intelligent fuse, the switch socket is provided with a signal circuit component and a power terminal component, and when the switch plug and the switch socket are matched, the intelligent fuse is respectively combined with the signal circuit component and the power terminal component.

[0007] Further, as a preference, the switch plug includes a plug shell, a plug rubber core and a handle, the plug rubber core limits the smart fuse in the plug shell, and the handle is arranged on the outer wall of the plug shell; the switch socket includes a socket shell, and the signal loop assembly and the power terminal assembly are arranged on the socket shell.

[0008] Furthermore, as a preference, the plug housing is provided with an inserting groove, and the socket housing is provided with an inserting convex strip, and the inserting convex strip is stuck in the inserting groove when the switch plug and the switch socket are matched.

[0009] Furthermore, as a preference, a locking column is provided at the end of the plug-in convex strip, a locking groove is provided on the handle, and the locking column is snapped into the locking groove after the switch plug and the switch socket are matched.

[0010] Furthermore, as a preference, a locking protrusion is further provided on the outer wall of the plug housing, and a locking hole is provided on the handle, and when the locking hole is engaged with the locking protrusion, the handle locks the switch plug and the switch socket.

[0011] Furthermore, as a preference, the switch socket is also provided with a power terminal compartment, the power terminal assembly is arranged in the power terminal compartment, and the power terminal compartment is provided with a socket for combining the intelligent fuse with the power terminal assembly.

[0012] Furthermore, as a preference, a plug sealing gasket is provided on the outer wall of the plug rubber core.

[0013] Further, preferably, the socket housing is provided with a socket sealing gasket.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model has an intelligent fuse designed in the plug, and a signal circuit component and a power terminal component designed in the socket. After the plug and the socket are plugged in, a signal circuit and a current-carrying circuit are formed. The power supply is cut off by controlling the signal circuit, which can avoid the high temperature effect caused by slow fuse, avoid the risk of burning, and is more convenient for detection.

[0016] The utility model is provided with a plug rubber core, through which the intelligent fuse is limited in the plug shell, the structure is stable, and the assembly is convenient and quick;

[0017] The utility model is provided with a locking column and a locking protrusion, and the reliability of the switch can be improved through double locking;

[0018] The utility model also provides a special power terminal compartment in the switch socket, which has a good limiting and protective effect on the power terminal assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the coordination of a manual maintenance switch with an intelligent fuse according to the utility model;

[0020] Figure 2 This is a cross-sectional view of a manual maintenance switch with an intelligent fuse according to the utility model;

[0021] Figure 3 It is a cross-sectional view of a switch plug in a manual maintenance switch with an intelligent fuse according to the utility model;

[0022] Figure 4 This is an exploded schematic diagram of a switch plug in a manual maintenance switch with an intelligent fuse according to the utility model;

[0023] Figure 5It is a cross-sectional view of a switch socket in a manual maintenance switch with an intelligent fuse of the utility model;

[0024] Figure 6 This is an exploded schematic diagram of a switch socket in a manual maintenance switch with an intelligent fuse of the utility model;

[0025] Figure 7 It is an enlarged schematic diagram of a handle in a manual maintenance switch with an intelligent fuse of the utility model;

[0026] Figure markings: 1-switch plug, 101-plug housing, 102-plug rubber core, 103-handle, 1031-locking groove, 1032-locking hole, 104-plugging groove, 105-locking protrusion, 106-plug sealing gasket, 2-switch socket, 201-socket housing, 202-plugging protrusion, 203-locking column, 204-power terminal compartment, 205-socket, 206-socket sealing gasket, 3-intelligent fuse, 4-signal circuit assembly, 5-power terminal assembly. DETAILED DESCRIPTION

[0027] The specific implementation modes of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0028] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0029] like Figure 1-7 As shown, a manual maintenance switch with an intelligent fuse includes a switch plug 1 and a switch socket 2 matched therewith, wherein the switch plug 1 is provided with an intelligent fuse 3, and the switch socket 2 is provided with a signal circuit component 4 and a power terminal component 5. When the switch plug 1 and the switch socket 2 are matched, the intelligent fuse 3 is respectively combined with the signal circuit component 4 and the power terminal component 5.

[0030] In this embodiment, as a specific solution, the switch plug 1 includes a plug shell 101, a plug rubber core 102 and a handle 103, the plug rubber core 102 limits the smart fuse 3 in the plug shell 101, and the handle 103 is arranged on the outer wall of the plug shell 101; the switch socket 2 includes a socket shell 201, and the signal loop component 4 and the power terminal component 5 are arranged on the socket shell 201.

[0031] In this embodiment, see Figure 3 The plug rubber core 102 serves as a limit for the smart fuse 3. The smart fuse 3 has a set of contact portions, which extend out of the plug rubber core 102 and are used to be combined with the power terminal assembly 5. In addition, the plug rubber core 102 also has a hole that facilitates the combination of the smart fuse 3 and the signal circuit assembly 4.

[0032] In this embodiment, as a specific solution, the plug housing 101 is provided with a plug-in groove 104, and the socket housing 201 is provided with a plug-in ridge 202. When the switch plug 1 and the switch socket 2 are matched, the plug-in ridge 202 is stuck in the plug-in groove 104; the combination of the plug-in groove 104 and the plug-in ridge 202 can play a guiding role on the one hand, and on the other hand, it is also convenient for the two to achieve quick plug-in.

[0033] In this embodiment, as a specific solution, a locking column 203 is provided at the end of the plug-in protrusion 202, and a locking groove 1031 is provided on the handle 103. After the switch plug 1 and the switch socket 2 are matched, the locking column 203 is stuck in the locking groove 1031; when the switch plug 1 needs to be pulled out, the handle 103 is pulled up and the locking column 203 slides out of the locking groove 1031.

[0034] In this embodiment, as a specific solution, the outer wall of the plug housing 101 is further provided with a locking protrusion 105, and the handle 103 is provided with a locking hole 1032. When the locking hole 1032 is clamped on the locking protrusion 105, the handle 103 locks the switch plug 1 and the switch socket 2.

[0035] In this embodiment, as a specific solution, the switch socket 2 is also provided with a power terminal compartment 204, the power terminal assembly 5 is arranged in the power terminal compartment 204, and the power terminal compartment 204 is provided with a socket 205 for combining the smart fuse 3 with the power terminal assembly 5.

[0036] In this embodiment, as a specific solution, a plug sealing gasket 106 is provided on the outer wall of the plug rubber core 102 to improve the sealing performance of the switch plug 1 .

[0037] In this embodiment, as a specific solution, the socket housing 201 is provided with a socket sealing gasket 206 , which can improve the sealing performance of the switch socket 2 .

[0038] The working principle of the utility model is as follows:

[0039] After the switch plug 1 and the switch socket 2 are matched, the locking column 203 of the switch socket 2 is stuck in the locking groove 1031 of the handle 103, and the locking protrusion 105 on the plug housing 101 is stuck in the locking hole 1032 of the handle 103, so that the handle 103 can lock the switch plug 1 and the switch socket 2, and the internal intelligent fuse 3 is combined with the signal circuit component 4 and the power terminal component 5 to form a signal circuit and a current-carrying circuit respectively.

[0040] The smart fuse 3 has a micro explosive signal circuit inside, and the battery management system (BMS) or electronic control unit (ECU) detects and feeds back the signal circuit to control the power cut-off. This part belongs to the prior art and will not be elaborated here.

[0041] The design point of the present application is to design the existing intelligent fuse 3 into the switch plug 1, and at the same time design the signal circuit component 4 and the power terminal component 5 into the switch socket 2. After the two are plugged in, a signal circuit and a current-carrying circuit are formed, which is more convenient for power-off control and detection, and can avoid the high temperature impact caused by the slow blowing of traditional fuses and avoid the risk of burning.

[0042] In addition, the switch plug 1 is provided with a plug rubber core 102, through which the intelligent fuse 3 is limited in the plug housing 101, the structure is stable, and the assembly is convenient and quick; a locking column 203 and a locking protrusion 105 are provided, and the reliability of the switch can be improved by double locking of the handle 103; a special power terminal compartment 204 is also provided in the switch socket 2, which has a good limiting and protective effect on the power terminal assembly 204.

[0043] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A manual maintenance switch with an intelligent fuse, comprising a switch plug and a matching switch socket, characterized in that: The switch plug is provided with an intelligent fuse, and the switch socket is provided with a signal circuit component and a power terminal component. When the switch plug and the switch socket are matched, the intelligent fuse is respectively combined with the signal circuit component and the power terminal component.

2. A manual maintenance switch with intelligent fuse according to claim 1, characterized in that: The switch plug includes a plug shell, a plug rubber core and a handle, the plug rubber core limits the intelligent fuse in the plug shell, and the handle is arranged on the outer wall of the plug shell; the switch socket includes a socket shell, and the signal circuit component and the power terminal component are arranged on the socket shell.

3. A manual maintenance switch with intelligent fuse according to claim 2, characterized in that: The plug shell is provided with an inserting groove, and the socket shell is provided with an inserting convex strip. When the switch plug and the switch socket are matched, the inserting convex strip is stuck in the inserting groove.

4. A manual maintenance switch with intelligent fuse according to claim 3, characterized in that: A locking column is arranged at the end of the plug-in convex strip, and a locking groove is arranged on the handle. After the switch plug and the switch socket are matched, the locking column is clamped into the locking groove.

5. A manual maintenance switch with intelligent fuse according to claim 4, characterized in that: The outer wall of the plug housing is also provided with a locking protrusion, and the handle is provided with a locking hole. When the locking hole is clamped on the locking protrusion, the handle locks the switch plug and the switch socket.

6. A manual maintenance switch with intelligent fuse according to claim 2, characterized in that: The switch socket is also provided with a power terminal compartment, the power terminal assembly is arranged in the power terminal compartment, and a socket for combining the intelligent fuse with the power terminal assembly is opened on the power terminal compartment.

7. A manual maintenance switch with intelligent fuse according to claim 2, characterized in that: The outer wall of the plug rubber core is provided with a plug sealing gasket.

8. A manual maintenance switch with intelligent fuse according to claim 2, characterized in that: The socket shell is provided with a socket sealing gasket.

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