High-current manual maintenance switch plug with rear-mounted fuse

Abstract

The utility model discloses a high-current manual maintenance switch plug with a rear-mounted fuse, which comprises a plug shell, a handle component mounted on the outer side of the plug shell, a plug blocking cover mounted on the inner side of the top of the plug shell, a plug sealing ring mounted on the outer side of the plug blocking cover on the plug shell, and an interlocking jack component mounted in the plug blocking cover. Jack assemblies are further installed on the left side and the right side of the plug blocking cover, three combination screws are installed on the lower sides of the jack assemblies, the jack assemblies are provided with connecting copper bars in a locking mode through the three combination screws, the connecting copper bars are of an L-shaped structure, pressing rivet screws are arranged at the bottoms of the connecting copper bars, and connecting pieces are installed between the pressing rivet screws on the two sides. The connecting piece is connected with a large-current fuse, the large-current fuse is arranged in the plug shell, the pressing rivet screw is sequentially provided with a flat gasket, an elastic gasket and a nut on the other side of the connecting piece, the bottom of the plug shell is provided with a plug tail cover, and the joint of the plug shell and the plug tail cover is provided with a sealing gasket.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical connectors, and in particular relates to a fuse rear-mounted large-current manual maintenance switch plug. Background Art

[0002] Electrical connections broadly refer to the collection of all electrical circuits in electrical products. They include terminal blocks, PCB connectors, industrial connectors, junction boxes, heavy-duty connectors, cables, cable connectors, safety barriers, and contacts. In addition to meeting general performance requirements, electrical connectors must also ensure good contact, reliable operation, and easy maintenance.

[0003] With the rise of electric vehicles, automotive electrical connectors have become a new hot spot in connector applications. Among them, high-current manual maintenance switch plugs that need to be disconnected during maintenance to reduce operational risks are an indispensable part.

[0004] However, the existing maintenance switch plug is not stable enough to install, and is prone to interference problems during assembly. It has low sealing performance, and has high resistance and rapid temperature rise during use, which is very prone to safety accidents and leads to low safety in use. Utility Model Content

[0005] In view of the problems raised by the above background technology, the purpose of the present utility model is to provide a large current manual maintenance switch plug with a fuse installed later.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0007] A fuse rear-installed high-current manual maintenance switch plug, comprising a plug housing, a handle assembly installed on the outside of the plug housing, a plug cover installed on the inner side of the top of the plug housing, a plug sealing ring installed on the outside of the plug cover of the plug housing, an interlocking jack assembly installed in the plug cover, jack assemblies are also installed on the left and right sides of the plug cover, three combination screws are installed on the lower side of the jack assembly, and the jack assembly is locked and installed with a connecting copper bar by the three combination screws. The connecting copper bar is arranged in an L-shaped structure, and a pressure rivet screw is provided at the bottom of the connecting copper bar, and a connecting piece is installed between the pressure rivet screws on both sides, and the connecting piece is connected to a high-current fuse, and the high-current fuse is arranged in the plug housing, and the pressure rivet screw is sequentially installed with a flat washer, a spring washer and a nut on the other side of the connecting piece, and a plug tail cover is installed at the bottom of the plug housing, and a sealing gasket is provided at the connection between the plug housing and the plug tail cover.

[0008] The plug housing is further defined as having limit buckles on four sides of the bottom of the high-current fuse. The limit buckles are arranged in a J-shaped structure. Bosses are provided on the left and right sides of the external upper end of the plug housing, and on the left and right sides of the external lower end of the plug housing. Several evenly spaced housing limit grooves are provided on the front and rear ends of the top inner side of the plug housing. A limit lock block is provided on the lower front side of the plug housing. A housing mounting groove is provided on the inner top of the plug housing, and the plug sealing ring is installed in the housing mounting groove. This structural design facilitates subsequent positioning and installation.

[0009] It is further defined that the handle assembly includes a handle, with slots provided on the left and right sides of the handle, a first assembly slot provided on the lower side of the handle, a locking block installed in the first assembly slot, a second assembly slot provided on the upper side of the handle, a spring installed in the second assembly slot, a lock catch connected to the free end of the spring, the lock catch slidably installed in the second assembly slot, and the lock catch is provided on the lower side of the limit lock block. This structural design facilitates fixed installation.

[0010] Further defined, the plug cover is provided with cover buckles on the front and rear sides of the bottom, the plug cover is provided with socket slots on the left and right sides, the socket assembly is installed in the socket slots, and the plug cover is provided with an interlocking socket slot on one side of the socket slot, and a limiting end surface is provided in the interlocking socket slot. This structural design achieves a fixed installation effect.

[0011] It is further defined that the interlocking socket assembly includes a socket member, a toothed sleeve is provided at the middle of the socket member, a plurality of claws are provided around the circumference of the toothed sleeve, and the bottoms of the plurality of claws are provided on the limit end surface. Such a structural design facilitates limit installation.

[0012] It is further defined that the jack assembly is provided with a rivet nut, which is locked with the three-combination screw. Such a structural design facilitates locking connection installation.

[0013] It is further defined that a fuse base plate is installed at the bottom of the high current fuse, and the fuse base plate is arranged on the limit buckle. Such a structural design has a protective effect on the bottom of the high current fuse.

[0014] It is further defined that the left and right sides of the plug tail cover are provided with tail cover buckles, the plug tail cover is provided with a positioning groove, and the sealing gasket is installed in the positioning groove. Such a structural design facilitates positioning and fixing installation.

[0015] The beneficial effects of the utility model are as follows: the high-current fuse and the terminal of the utility model are connected by a copper busbar, which reduces resistance and lowers temperature rise; and the high-current fuse is rear-mounted, which not only solves the problem of assembly interference, but also reduces the overall size of the high-current maintenance switch plug; the sealing ring and sealing gasket at the end of the high-current maintenance switch plug ensure that the plug and socket meet the sealing requirements after matching, thereby ensuring the stability and safety of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0017] Figure 1 This is a schematic diagram of the axial structure of a rear-mounted high-current manual maintenance switch plug for a fuse according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of a rear-mounted high-current manual maintenance switch plug for a fuse according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the installation structure of the interlocking socket assembly of a rear-mounted high-current manual maintenance switch plug of a fuse according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic structural diagram of an interlocking socket assembly of a rear-mounted high-current manual maintenance switch plug for a fuse according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic cross-sectional view of a plug housing of a rear-mounted, high-current manual maintenance switch plug for a fuse according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic cross-sectional view of the plug tail cover of a rear-mounted high-current manual maintenance switch plug of a fuse according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the exploded structure of a rear-mounted high-current manual maintenance switch plug for a fuse according to an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the exploded structure of a handle assembly of a rear-mounted high-current manual maintenance switch plug for a fuse according to an embodiment of the present invention;

[0025] The main component symbols are described as follows:

[0026] Plug housing 1, limiting buckle 101, boss 102, housing boss 103, housing limiting groove 104, limiting locking block 105, housing mounting groove 106;

[0027] Handle assembly 2, handle 201, slot 202, first assembly slot 203, locking block 204, second assembly slot 205, spring 206, lock buckle 207;

[0028] Plug cover 3, cover buckle 301, jack slot 302, interlocking jack slot 303, and limiting end surface 304;

[0029] Plug sealing ring 4;

[0030] Interlocking jack assembly 5, jack piece 501, gear sleeve 502, claw 503

[0031] Jack assembly 6, rivet nut 601

[0032] Three combination screws 7, connecting copper busbar 8, pressure rivet screws 9, connecting piece 10;

[0033] High current fuse 11, fuse base plate 1101

[0034] Flat washer 12, spring washer 13, nut 14;

[0035] Plug tail cover 15, tail cover buckle 1501, positioning groove 1502;

[0036] Sealing gasket 16. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0038] like Figure 1-8 As shown, the utility model is a rear-mounted high-current manual maintenance switch plug for a fuse, a handle assembly 2 is installed on the outside of the plug housing 1, a plug cover 3 is installed on the inside of the top of the plug housing 1, the plug housing 1 is provided with a plug sealing ring 4 on the outside of the plug cover 3, an interlocking jack assembly 5 is installed in the plug cover 3, and a jack assembly 6 is also installed on the left and right sides of the plug cover 3, and three combination screws 7 are installed on the lower side of the jack assembly 6. The jack assembly 6 is locked and installed with a connecting copper bar 8 by the three combination screws 7. The connecting copper bar 8 is arranged in an L-shaped structure, and a pressure rivet screw 9 is provided at the bottom of the connecting copper bar 8. A connecting piece 10 is installed between the pressure rivet screws 9 on both sides, and the connecting piece 10 is connected to a high-current fuse 11. The high-current fuse 11 is arranged in the plug housing 1, and the pressure rivet screw 9 is sequentially installed with a flat washer 12, a spring washer 13 and a nut 14 on the other side of the connecting piece 10. A plug tail cover 15 is installed at the bottom of the plug housing 1, and a sealing gasket 16 is provided at the connection between the plug housing 1 and the plug tail cover 15.

[0039] Preferably, the plug housing 1 is provided with retaining clips 101 on all four sides of the bottom of the high-current fuse 11. The retaining clips 101 are arranged in a J-shaped structure. Bosses 102 are provided on the left and right sides of the upper outer end of the plug housing 1, and housing bosses 103 are provided on the left and right sides of the lower outer end of the plug housing 1. Several housing retaining grooves 104 are evenly spaced at the front and rear ends of the top inner side of the plug housing 1. A retaining lock block 105 is provided on the lower front side of the plug housing 1. A housing mounting groove 106 is provided on the inner top of the plug housing 1, and the plug sealing ring 4 is mounted within the housing mounting groove 106. This structural design facilitates subsequent positioning and installation. In practice, other structural shapes of the plug housing 1 can also be considered depending on the specific situation.

[0040] Preferably, the handle assembly 2 includes a handle 201 having slots 202 formed on its left and right sides. A first mounting slot 203 is formed on the lower side of the handle 201, and a locking block 204 is mounted within the first mounting slot 203. A second mounting slot 205 is formed above the first mounting slot 203, and a spring 206 is mounted within the second mounting slot 205. The free end of the spring 206 is connected to a locking catch 207, which is slidably mounted within the second mounting slot 205 and disposed below the limiting locking block 105. This structural design facilitates secure installation. In practice, other structural shapes of the handle assembly 2 may also be considered depending on the specific situation.

[0041] Preferably, the plug cover 3 has cover buckles 301 on the front and back sides of its bottom. Plug cover 3 also has socket slots 302 on its left and right sides, into which the jack assembly 6 is mounted. Plug cover 3 also has an interlocking socket slot 303 on one side of socket slot 302, with a stopper surface 304 located within interlocking socket slot 303. This structural design provides for secure installation. In practice, other structural shapes for plug cover 3 may also be considered depending on specific circumstances.

[0042] Preferably, the interlocking jack assembly 5 includes a socket 501, with a toothed sleeve 502 disposed in the middle of the socket 501. A plurality of claws 503 are disposed around the circumference of the toothed sleeve 502, with the bottoms of the claws 503 disposed on the position-limiting end surface 304. This structural design facilitates position-limiting installation. In practice, other structural shapes of the interlocking jack assembly 5 may also be considered depending on the specific situation.

[0043] Preferably, the jack assembly 6 is provided with a rivet nut 601, which is locked and connected with the three-combination screw 7. Such a structural design facilitates locking and installation. In fact, other structural shapes of the jack assembly 6 can also be considered according to specific circumstances.

[0044] Preferably, a fuse base plate 1101 is mounted on the bottom of the high-current fuse 11, and the fuse base plate 1101 is disposed on the limit buckle 101. This structural design provides protection for the bottom of the high-current fuse 11. In practice, other protective structural shapes of the fuse base plate 1101 may also be considered depending on the specific situation.

[0045] Preferably, the plug tail cover 15 is provided with tail cover buckles 1501 on both sides, and a positioning groove 1502 is provided inside the plug tail cover 15, into which the sealing gasket 16 is mounted. This structural design facilitates positioning and fixing. In fact, other structural shapes of the plug tail cover 15 can also be considered according to specific circumstances.

[0046] In this embodiment, during installation, the tooth sleeve 502 is first installed in the socket member 501 to form an interlocking socket assembly 5, and the lock buckle 207, spring 206 and lock block 204 are sequentially installed in the first assembly groove 203 and the second assembly groove 205 in the handle 201 to form a handle assembly 2. The assembled handle assembly 2 is installed on the plug housing 1 so that the slots 202 on both sides of the handle 201 need to be completely inserted into the boss 102. The connecting copper bar 8 is connected to the high current fuse 11 by tightening the rivet screws 9 with the flat washers 12, the spring washers 13 and the nuts 14. The connecting copper bar 8 is connected to the socket assembly 6 by tightening the three combination screws 7 and the rivet nuts 601. The assembled interlocking socket assembly Insert part 5 into the interlocking socket slot 303 in the plug cover 3, ensure that the bottom surface of the claw 503 is flush with the limit end surface 304, then install the plug sealing ring 4 into the shell mounting groove 106, and insert the plug cover 3 into the plug shell 1, ensure that the cover buckle 301 on the plug cover 3 is completely inserted into the shell limit groove 104, install the assembled high-current fuse 11 into the plug shell 1, ensure that the limit buckle 101 is stuck on the fuse base plate 1101, install the sealing gasket 16 into the positioning groove 1502 of the plug tail cover 15, and install the assembled plug tail cover 15 to the bottom of the plug shell 1, ensure that the tail cover buckle 1501 is completely engaged with the shell boss 103, thereby completing the assembly work.

[0047] In this embodiment, a copper busbar is used to connect the high-current fuse to the terminal, and the high-current fuse is rear-mounted and has high-voltage interlocking and secondary locking functions, thereby ensuring the stability and safety of the product.

[0048] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A high-current manual maintenance switch plug with a fuse installed later, characterized by: The invention comprises a plug housing (1), a handle assembly (2) is installed on the outer side of the plug housing (1), a plug cover (3) is installed on the inner side of the top of the plug housing (1), a plug sealing ring (4) is installed on the outer side of the plug cover (3) of the plug housing (1), an interlocking jack assembly (5) is installed in the plug cover (3), and a jack assembly (6) is installed on the left and right sides of the plug cover (3), and three combination screws (7) are installed on the lower side of the jack assembly (6), and the jack assembly (6) is locked and installed with a connecting copper bar (8) by the three combination screws (7), and the connecting copper bar (8) is fixed to the jack assembly (6). ) is arranged in an L-shaped structure, a pressure rivet screw (9) is provided at the bottom of the connecting copper bar (8), a connecting piece (10) is installed between the pressure rivet screws (9) on both sides, the connecting piece (10) is connected to a high-current fuse (11), and the high-current fuse (11) is arranged in the plug housing (1), the pressure rivet screw (9) is sequentially installed with a flat washer (12), a spring washer (13) and a nut (14) on the other side of the connecting piece (10), a plug tail cover (15) is installed at the bottom of the plug housing (1), and a sealing gasket (16) is provided at the connection between the plug housing (1) and the plug tail cover (15).

2. The rear-mounted high-current manual maintenance switch plug for fuses according to claim 1, characterized in that: The plug housing (1) is provided with limiting buckles (101) on four sides of the bottom of the high-current fuse (11), and the limiting buckles (101) are arranged in a J-shaped structure. Bosses (102) are provided on the left and right sides of the outer upper end of the plug housing (1), and shell bosses (103) are provided on the left and right sides of the outer lower end of the plug housing (1). A plurality of evenly arranged shell limiting grooves (104) are provided at the front and rear ends of the inner top of the plug housing (1), a limiting locking block (105) is provided on the lower side of the front of the plug housing (1), and a shell mounting groove (106) is provided on the inner top of the plug housing (1), and the plug sealing ring (4) is installed in the shell mounting groove (106).

3. The rear-mounted high-current manual maintenance switch plug for fuses according to claim 2, characterized in that: The handle assembly (2) comprises a handle (201), wherein the left and right sides of the handle (201) are provided with card slots (202), the lower side of the handle (201) is provided with a first assembly slot (203), a locking block (204) is installed in the first assembly slot (203), the handle (201) is provided with a second assembly slot (205) on the upper side of the first assembly slot (203), a spring (206) is installed in the second assembly slot (205), the free end of the spring (206) is connected to a lock buckle (207), the lock buckle (207) is slidably installed in the second assembly slot (205), and the lock buckle (207) is arranged on the lower side of the limiting lock block (105).

4. The rear-mounted high-current manual maintenance switch plug for fuses according to claim 3, characterized in that: The plug blocking cover (3) is provided with blocking cover buckles (301) on the front and rear sides of the bottom, the plug blocking cover (3) is provided with jack slots (302) on the left and right sides, the jack assembly (6) is installed in the jack slots (302), the plug blocking cover (3) is provided with an interlocking jack slot (303) on one side of the jack slot (302), and a limiting end surface (304) is provided in the interlocking jack slot (303).

5. The rear-mounted high-current manual maintenance switch plug for fuses according to claim 4, characterized in that: The interlocking socket assembly (5) comprises a socket member (501), a toothed sleeve (502) is provided at the middle of the socket member (501), a plurality of claws (503) are provided around the circumference of the toothed sleeve (502), and the bottoms of the plurality of claws (503) are arranged on the limiting end surface (304).

6. The rear-mounted high-current manual maintenance switch plug for fuses according to claim 5, characterized in that: The jack assembly (6) is provided with a rivet nut (601), and the rivet nut (601) is locked with the three combination screws (7).

7. The rear-mounted high-current manual maintenance switch plug for fuses according to claim 6, characterized in that: A fuse base plate (1101) is installed at the bottom of the high-current fuse (11), and the fuse base plate (1101) is arranged on the limiting buckle (101).

8. The rear-mounted high-current manual maintenance switch plug for fuses according to claim 7, characterized in that: Tail cover buckles (1501) are provided on the left and right sides of the plug tail cover (15), a positioning groove (1502) is provided in the plug tail cover (15), and the sealing gasket (16) is installed in the positioning groove (1502).

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