Anti-retreating secondary lock for automobile fuse box terminal

Abstract

The utility model belongs to the field of automobile fuse boxes, and particularly relates to an anti-retreating secondary lock for an automobile fuse box terminal, which comprises a fuse box, a fuse, a terminal and a secondary lock assembly, the fuse is mounted at the top of the fuse box, the terminal is mounted in the fuse box, the top end of the terminal is in contact with the fuse, and the secondary lock assembly comprises a plurality of lock plates. The locking plate is inserted into the fuse box from bottom to top, the top end of the locking plate abuts against the lower end of the terminal, and the locking plate is fixed in the fuse box in a buckling connection mode. In addition, the action of installing the locking plate into the fuse box can further push the terminal which is not assembled in place to the locking position again, and therefore the situation that the terminal wire harness is withdrawn from the fuse box due to the fact that the terminal wire harness is subjected to external force or the terminal is not assembled in place is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of automobile fuse boxes, and in particular relates to an anti-retraction secondary lock for automobile fuse box terminals. Background Art

[0002] As an important power distribution device for controlling and protecting circuits, the automobile fuse box mainly includes components such as fuses and wiring harness connection terminals. In order to ensure that the terminals can be stably fixed in the fuse box, additional fixings such as buckles are usually provided to achieve the above functions. However, the existing fixings have unreasonable structural designs, and the assembly relationship between them and the fuse box is somewhat unstable.

[0003] The utility model designs an anti-retraction secondary lock for automobile fuse box terminals to solve the above problems. Utility Model Content

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses an anti-retraction secondary lock for automobile fuse box terminals, which comprises a fuse box, a fuse, a terminal and a secondary lock assembly. The fuse is installed on the top of the fuse box, the terminal is installed inside the fuse box and the top end is in contact with the fuse, and the secondary lock assembly comprises a plurality of lock pieces, which are inserted into the fuse box from bottom to top and the top end is against the lower end of the terminal, and the lock pieces are fixed in the fuse box in a snap-fit ​​connection manner.

[0006] As a preferred solution, the fuse box housing is provided with card slots located on the left and right sides of the terminal and between adjacent terminals, and the lock plate is provided with a hook card point, the lower end of the hook card point is against the lower end of the adjacent card slot inner wall.

[0007] As a preferred solution, a straight groove close to the hook clamping point is provided on the lock plate.

[0008] As a preferred solution, a boss is provided at the bottom of the locking piece, and the upper end of the boss abuts against the bottom end of the fuse box.

[0009] As a preferred solution, the secondary lock assembly includes a triple secondary lock plate group consisting of three lock plates, one of which is provided with hook points on both ends, and the other two lock plates are respectively provided with hook points on the same side, and a connecting plate is provided between the bosses of adjacent lock plates.

[0010] As a preferred solution, the triple secondary locking plate group can be split into two locking plate groups, one of which is a single secondary locking plate group with double hanging buckle points, and the other is a double secondary locking plate group with two single hanging buckle points.

[0011] Compared with the existing technology, the advantages of the utility model are:

[0012] 1. The locking piece designed in the utility model can limit the vertical axial movement of the terminal to prevent the terminal from being withdrawn from the fuse box in normal use scenarios. In addition, the action of installing the locking piece into the fuse box can also push the terminal that is not assembled in place back to the locked position, thereby preventing the terminal harness from being withdrawn from the fuse box due to external force or the terminal not being assembled in place.

[0013] 2. The triple secondary locking piece group designed in the utility model can lock three terminals. According to the requirements of the assembly environment, the triple secondary locking piece group can be split into a single secondary locking piece group and a double secondary locking piece group by disconnecting the connecting plate. The two can respectively realize the functions of locking one terminal and two terminals, thereby improving the application scope of this product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the positional relationship between the locking piece and the terminal of the utility model.

[0016] Figure 3 It is a schematic diagram of the triple secondary locking plate group of the utility model.

[0017] Figure 4 It is a schematic diagram of a single-linked secondary locking plate group of the utility model.

[0018] Figure 5 It is a schematic diagram of a double-linked secondary locking plate assembly of the utility model.

[0019] The reference numbers in the figure are as follows: 1. fuse box; 2. fuse; 3. terminal; 4. slot; 5. lock plate; 6. hook and buckle card point; 7. boss; 8. straight slot; 9. triple secondary lock plate group; 10. connecting plate; 11. single secondary lock plate group; 12. double secondary lock plate group. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments or drawings are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] A secondary lock for preventing the terminal of a car fuse box from retreating, such as Figure 1 and Figure 2 As shown, it includes a fuse box 1, a fuse 2, a terminal 3 and a secondary lock assembly, the fuse 2 is installed on the top of the fuse box 1, the terminal 3 is installed inside the fuse box 1 and the top end is in contact with the fuse 2, the secondary lock assembly includes at least three lock pieces 5, the lock pieces 5 are inserted into the fuse box 1 from bottom to top and the top end is against the lower end of the terminal 3, and the lock pieces 5 are fixed in the fuse box 1 in a snap-fit ​​connection manner;

[0022] The fuse box 1 shell is provided with card slots 4 located at the left and right sides of the terminal 3 and between adjacent terminals 3 , and the lock piece 5 is provided with a hook card point 6 , the lower end of which abuts against the lower end of the inner wall of the adjacent card slot 4 .

[0023] The locking piece 5 can limit the vertical movement of the terminal to prevent the terminal 3 from withdrawing from the fuse box 1 under normal use scenarios. In addition, the action of installing the locking piece 5 into the fuse box 1 can also push the terminal 3 that is not assembled into place back to the locked position, thereby preventing the terminal harness from withdrawing from the fuse box 1 due to external force or the terminal 3 not being assembled into place.

[0024] like Figure 3 As shown, the locking plate 5 is provided with a straight groove 8 close to the position of the hook card point 6. When the locking plate 5 is withdrawn from the fuse box 1, the hook card point 6 needs to be pushed open to separate it from the card slot 4. The straight groove 8 can provide deformation margin for the locking plate 5, so that the locking plate 5 can be deformed more easily with the movement of the hook card point 6, thereby reducing the difficulty of removing the locking plate 5. A boss 7 is provided at the bottom of the locking plate 5, and the upper end of the boss 7 is against the bottom end of the fuse box 1.

[0025] like Figure 3 As shown, the secondary lock assembly includes a triple secondary lock plate group 9 consisting of three lock plates 5, one of the lock plates 5 is provided with hook points 6 at both ends, the other two lock plates 5 are respectively provided with hook points 6 on the same side, and a connecting plate 10 is provided between the bosses 7 of adjacent lock plates 5.

[0026] like Figure 4 and Figure 5 As shown, the triple secondary locking plate group 9 can be split into two locking plate groups, one of which is a single secondary locking plate group 11 with double hanging buckle points 6, and the other is a double secondary locking plate group 12 with two single hanging buckle points 6.

[0027] The triple secondary locking piece group 9 can lock three terminals 3, and according to the requirements of the assembly environment, the triple secondary locking piece group 9 can be split into a single secondary locking piece group 11 and a double secondary locking piece group 12 by disconnecting the connecting plate 10, both of which can respectively realize the function of locking one terminal and two terminals, thereby improving the application scope of this product.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A secondary lock for preventing the terminal of a car fuse box, characterized in that: The invention comprises a fuse box (1), a fuse (2), a terminal (3) and a secondary lock assembly, wherein the fuse (2) is mounted on the top of the fuse box (1), the terminal (3) is mounted inside the fuse box (1) and the top end is in contact with the fuse (2), and the secondary lock assembly comprises a plurality of lock pieces (5), the lock pieces (5) are inserted into the fuse box (1) from bottom to top and the top end is against the lower end of the terminal (3), and the lock pieces (5) are fixed in the fuse box (1) in a snap-fit ​​connection manner.

2. The anti-retraction secondary lock for automobile fuse box terminal according to claim 1, characterized in that: The outer shell of the fuse box (1) is provided with card slots (4) respectively located on the left and right sides of the terminal (3) and between adjacent terminals (3); the lock plate (5) is provided with a hook card point (6); the lower end of the hook card point (6) abuts against the lower end of the inner wall of the adjacent card slot (4).

3. The anti-retraction secondary lock for automobile fuse box terminal according to claim 2, characterized in that: The locking plate (5) is provided with a straight groove (8) close to the hook locking point (6).

4. The anti-retraction secondary lock for automobile fuse box terminal according to claim 3, characterized in that: A boss (7) is provided at the bottom of the locking plate (5), and the upper end of the boss (7) abuts against the bottom end of the fuse box (1).

5. The anti-retraction secondary lock for automobile fuse box terminal according to claim 4, characterized in that: The secondary lock assembly comprises a triple secondary lock plate group (9) consisting of three lock plates (5), wherein one of the lock plates (5) is provided with hook and buckle points (6) at both ends, and the other two lock plates (5) are provided with hook and buckle points (6) in the same side direction, respectively, and a connecting plate (10) is provided between the bosses (7) of adjacent lock plates (5).

6. The anti-retraction secondary lock for automobile fuse box terminal according to claim 5, characterized in that: The triple secondary locking plate group (9) can be split into two locking plate groups, one of which is a single secondary locking plate group (11) having two hanging buckle points (6), and the other is a double secondary locking plate group (12) having two single hanging buckle points (6).

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