Detachable fuse terminal structure of connector

Abstract

The utility model discloses a connector detachable fuse terminal structure, and relates to the connector fuse terminal technology field, the structure comprises a fuse and a plastic cement housing, the plastic cement housing is used for assembling in a connector housing, the plastic cement housing is provided with an installation groove, the groove depth direction of the installation groove is the same with the axial direction of the fuse, and the groove depth direction of the installation groove is the same with the axial direction of the fuse. The fuse is inserted into the mounting groove along the axial direction of the fuse; the front cover is used for being inserted into the mounting groove, the front cover is connected with the fuse in a sleeving manner, and the front cover is provided with a clamping structure which is detachably connected with the plastic shell; according to the utility model, the replacement direction of the fuse is set to be the axial direction, so that the process difficulty and the use cost are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of connector fuse terminals, in particular to a detachable fuse terminal structure for a connector. Background Art

[0002] The function of a connector is to transmit power and provide electrical connection. A fuse is arranged in the connector to protect the wiring through the fuse and prevent equipment damage or fire caused by abnormal increase in current.

[0003] In the prior art, for the fuse replacement structure of a connector, the installation direction of the fuse is mostly in the radial direction.

[0004] However, in high-voltage connector products, the internal space of the high-voltage connector is small. If the fuse is installed in the radial direction, the radial direction is restricted and cannot meet the space requirements, increasing the process difficulty and production cost. Summary of the Utility Model

[0005] The utility model provides a detachable fuse terminal structure for a connector to achieve the effect of setting the fuse replacement direction to the axial direction and effectively reducing the process difficulty and usage cost.

[0006] The utility model specifically adopts the following technical solutions:

[0007] A detachable fuse terminal structure for a connector, comprising:

[0008] A fuse;

[0009] A plastic housing, which is used for being assembled in the connector housing. An installation groove is provided on the plastic housing, and the depth direction of the installation groove is the same as the axial direction of the fuse. The fuse is inserted into the installation groove along its own axial direction;

[0010] A front cover, which is used for being inserted into the installation groove. The front cover is sleeved and connected with the fuse, and a clamping structure is provided on the front cover for detachable connection with the plastic housing.

[0011] Optionally, a receiving groove for inserting the plastic housing is provided on the connector housing, a metal part is provided in the receiving groove, one side end cap of the fuse passes through the installation groove and abuts against the side wall of the metal part, and the lead of the fuse is used for electrical connection with an external device.

[0012] Optionally, an anti-disengagement structure for restricting the fuse in the installation groove is provided on the front cover.

[0013] Optionally, the anti-disengagement structure is a round hole. The round hole is provided on the bottom wall of the front cover and is used for the lead of the fuse to pass through. The bottom wall of the front cover abuts against the side wall of the other side end cap of the fuse.

[0014] Optionally, a clamping seat is provided on the side wall of the front cover, and a clamping groove corresponding to the clamping seat is provided on the side wall of the plastic housing.

[0015] Optionally, the clamping structure includes a buckle. The buckle is arranged on the side wall of the clamping seat. A clamping hole that is inserted and matched with the buckle is provided on the side wall of the plastic housing, and the clamping hole is communicated with the clamping groove.

[0016] Optionally, the clamping structure further includes a dial. An activity groove is provided on the side wall of the clamping seat facing away from the front cover. A bent portion is provided at the bottom end of the dial, and the bent portion is fixedly connected to the groove wall of the activity groove. The top end of the dial is a free end. A reset space for the free end of the dial to move is formed between the dial and the groove wall of the activity groove, and the buckle is arranged on the side wall of the dial facing away from the reset space.

[0017] Optionally, the front cover, the plastic housing, and the connector housing are all made of plastic materials.

[0018] A detachable fuse terminal structure of a connector provided by the present utility model has the following beneficial effects:

[0019] 1. The replacement direction of the fuse is set axially, and the space required in the radial direction is small, which helps to improve the space utilization rate and effectively reduces the process difficulty and use cost;

[0020] 2. By removing the front cover, the fuse can be quickly replaced;

[0021] 3. The structure of this solution is simple, and both the front cover and the plastic housing are made of plastic materials, which have good insulation effects and effectively reduce the process difficulty and use cost.

[0022] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present utility model, nor is it used to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is an overall cross-sectional view showing the detachable terminal structure of the connector in the embodiment of the present application;

[0025] Figure 2 It is an overall structural view showing the positional relationship between the plastic housing and the fuse in the embodiment of the present application;

[0026] Figure 3 This is a schematic diagram of the explosion structure among the plastic housing, fuse, and front cover in the embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the specific structure of the front cover in the embodiment of this application.

[0028] Figure 5 This is a schematic diagram showing the positional relationship between the bending part and the paddle in the embodiment of this application.

[0029] Reference numerals: 1, connector housing; 101, receiving groove; 2, fuse; 3, plastic housing; 31, mounting groove; 4, front cover; 5, round hole; 6, card seat; 7, card slot; 8, snap structure; 81, paddle; 811, bending part; 82, buckle; 83, moving groove; 84, card hole; 85, reset space; 9, metal part. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the solution of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this utility model.

[0031] It should be noted that the terms "first", "second", etc. in the description and claims of this utility model and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this utility model described here can be implemented in an order different from those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0032] Referring to Figures 1 - 5 , this embodiment provides a detachable fuse terminal structure for a connector. Figure 1Among them, the detachable fuse terminal structure of the connector includes a plastic housing 3, a fuse 2, and a front cover 4. The plastic housing 3 is used to be installed in the connector housing 1. The top wall of the connector housing 1 is provided with a receiving groove 101, and a metal part 9 is installed at the bottom of the receiving groove 101. The connector housing 1, the plastic housing 3, and the front cover 4 are all made of plastic material and formed.

[0033] Referring to Figures 1 - 3 , in this embodiment, the plastic housing 3, the fuse 2, and the front cover 4 are all cylindrical. During installation, the plastic housing 3 can be inserted into the receiving groove 101 along its own axis. The top wall of the plastic housing 3 is provided with an installation groove 31 that penetrates its bottom wall. The installation groove 31 is used for the fuse 2 to be inserted axially into the plastic housing 3. After the fuse 2 is inserted into the installation groove 31, the end cap at the bottom end of the fuse 2 passes through the installation groove 31 and abuts against the metal part 9 at the bottom of the receiving groove 101, so as to electrically connect the fuse 2 to the internal circuit of the connector housing 1.

[0034] Referring to Figures 2 - 4 , in this embodiment, the shape of the front cover 4 is set as a cylindrical barrel. A circular hole 5 is provided at the center of the bottom of the front cover 4. The diameter of the circular hole 5 is larger than the wire diameter of the lead wire and smaller than the diameter of the end cap of the fuse 2. After the fuse 2 is inserted into the installation groove 31, the front cover 4 is inserted into the installation groove 31. And when the front cover 4 is inserted into the installation groove 31, the circular hole 5 can be used for the lead wire of the fuse 2 to pass through. Until the front cover 4 abuts against the end cap at the top end of the fuse 2, the installation of the front cover 4 is completed. It should be noted that the circular hole 5 in this embodiment constitutes an anti-detachment structure, and the front cover 4 is used to limit the position of the fuse 2 in the installation groove 31.

[0035] Since the cross-section of the front cover 4 is circular, in order to help prevent the front cover 4 from rotating, a clamping seat 6 is provided on the side wall of the front cover 4, and a clamping groove 7 corresponding to the clamping seat 6 is provided on the side wall of the plastic housing 3. The cooperation of the clamping seat 6 and the clamping groove 7 positions the position of the front cover 4 in the plastic housing 3.

[0036] Referring to Figure 2 , Figure 4 and Figure 5, in order to further enhance the stability of the fuse 2 within the plastic housing 3, the side wall of the card holder 6 facing away from the front cover 4 is provided with a movable slot 83. The movable slot 83 penetrates through the top wall and the bottom wall of the card holder 6. The bottom wall of the movable slot 83 is inclined with a paddle 81. The bottom end of the paddle 81 is connected to the bottom wall of the movable slot 83, and the top end of the paddle 81 is set as a free end. A reset space 85 is reserved between the paddle 81 and the opposite side wall of the slot wall of the movable slot 83, and the reset space 85 is for the free end of the paddle 81 to move. An integrally formed buckle 82 is provided on the side wall of the paddle 81 facing away from the reset space 85. A clamping hole 84 is provided on the side wall of the plastic housing 3 located at the card slot 7, and the clamping hole 84 cooperates with the buckle 82. In this embodiment, the paddle 81 and the buckle 82 form a clamping structure 8. Both the paddle 81 and the buckle 82 are made of plastic material and have good elastic restoring force.

[0037] During the process of installing the front cover 4, the operator can pinch the paddle 81 to gradually reduce the angle between the paddle 81 and the movable slot 83, so that after inserting the card holder 6 into the card slot 7, the buckle 82 can be aligned with the clamping hole 84. After installing the front cover 4, release the paddle 81. At this time, the paddle 81 resets by its own elastic force, so as to insert the buckle 82 into the clamping slot. The buckle 82 and the clamping hole 84 play a role in positioning the position of the card holder 6 within the card slot 7, thereby limiting the position of the front cover 4 in the axial direction inside the plastic housing 3, so as to stably fix the fuse 2 in the plastic housing 3.

[0038] Note that the above is only a preferred embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, it can also include more other equivalent embodiments, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A detachable safety terminal structure for a connector, characterized in that, include: Fuse (2); A plastic housing (3) for being assembled in a connector housing (1); a mounting groove (31) is provided on the plastic housing (3); a groove depth direction of the mounting groove (31) is in the same direction as the axial direction of the fuse (2); and the fuse (2) is inserted into the mounting groove (31) along its own axial direction; The front cover (4) is used to be inserted into the installation groove (31), the front cover (4) is sleeve-connected with the fuse (2), and the front cover (4) is provided with a clamping structure (8) which is detachably connected with the plastic shell (3).

2. The detachable fuse terminal structure according to claim 1, characterized in that, The connector housing (1) is provided with a receiving groove (101) for inserting the plastic housing (3), a metal piece (9) is provided in the receiving groove (101), one side end cap of the fuse (2) passes through the mounting groove (31) and abuts against the side wall of the metal piece (9), and the lead of the fuse (2) is used for electrically connecting to external equipment.

3. The detachable fuse terminal structure according to claim 1, characterized in that, The front cover (4) is provided with an anti-drop structure for restricting the fuse (2) in the installation groove (31).

4. The detachable fuse terminal structure according to claim 3, wherein, The anti-drop structure is a circular hole (5), which is arranged on the bottom wall of the front cover (4). The circular hole (5) is used for allowing the lead of the fuse (2) to pass through, and the bottom wall of the front cover (4) abuts against the side wall of the end cap on the other side of the fuse (2).

5. The detachable fuse terminal structure according to claim 1, wherein A card seat (6) is provided on the side wall of the front cover (4), and a card slot (7) corresponding to the card seat (6) is provided on the side wall of the plastic shell (3).

6. The detachable fuse terminal structure according to claim 5, wherein, The snap-fit structure (8) comprises a snap (82), wherein the snap (82) is arranged on the side wall of the card seat (6), and the side wall of the plastic shell (3) is provided with a snap-fit hole (84) which is plugged into and matched with the snap (82), and the snap-fit hole (84) is connected to the card slot (7).

7. The detachable fuse terminal structure according to claim 6, wherein, The clamping structure (8) further comprises a paddle (81); a side wall of the clamping seat (6) facing away from the front cover (4) is provided with a movable groove (83); a bottom end of the paddle (81) is provided with a bent portion (811); the bent portion (811) is fixedly connected to the groove wall of the movable groove (83); a top end of the paddle (81) is provided as a free end; a reset space (85) for the free end of the paddle (81) to move is formed between the paddle (81) and the groove wall of the movable groove (83); and the buckle (82) is provided on the side wall of the paddle (81) facing away from the reset space (85).

8. The detachable fuse terminal structure according to claim 1, characterized in that, The front cover (4), the plastic housing (3) and the connector housing (1) are all made of plastic material.

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