A containerized fuel cell voltage inspection connector

Abstract

The utility model provides a containerized fuel cell voltage inspection connector, including a shell, a plurality of pressure grooves penetrating the upper and lower end surfaces of the shell, and a top cover covering the upper part of the shell. The cable and the terminal are electrically connected and fixed in position through a plastic body, the plastic body is engaged in the pressure groove, and then covered on the shell through the top cover so that the connector as a whole presents a containerized structure. The utility model can achieve the fixation of the cable and the terminal, and prevent the cable and the terminal from loosening and causing connection failure during the operation of the fuel cell, thereby ensuring the voltage inspection work, and the utility model has high working stability.

Description

Technical Field

[0001] The utility model relates to a cable connection device, in particular to a containerized fuel cell voltage inspection connector. Background Art

[0002] CVP (Cell Voltage Probe) is a key component for voltage monitoring in fuel cells. By measuring the voltage of each cell, the performance of the entire system and the voltage distribution between cells can be understood. The connection between the cable and the terminal directly affects the output of voltage data. Once the cable and the terminal are disconnected, the voltage monitoring will fail, leading to more serious consequences.

[0003] In the prior art, fuel cell cables and terminals are usually connected by welding and directly inserted into the device. The position of the cables cannot be fixed, and the connection in a free state is prone to loosening. Therefore, it is necessary to design a connector to stabilize the connection position between the cables and terminals. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a containerized fuel cell voltage inspection connector, including a shell, a plurality of pressing grooves penetrating the upper and lower end surfaces of the shell, a plastic body clamped in each pressing groove, and a top cover covering the upper part of the shell;

[0005] The plastic body includes a first end and a second end with upper and lower relative positions, the first end is connected to a cable, the second end is connected to a terminal, and the cable and the terminal are electrically connected in the plastic body.

[0006] Furthermore, a recessed card slot is provided at the lower end of the side of the plastic body, and an elastic card block is provided at the side of the pressing slot. When the plastic body moves downward along the pressing slot, the elastic card block is pressed into the card slot.

[0007] Furthermore, the plastic body is provided with an inwardly recessed guide groove below the card slot, and the guide groove is inclined from bottom to top toward the outer side of the plastic body.

[0008] Furthermore, the shell is provided with two groups of protrusions on the upper surface corresponding to each group of pressing grooves, the protrusions extend upward from one groove edge of the pressing groove and are arranged opposite to each other, and a wire groove for positioning the cable is formed between the two groups of protrusions.

[0009] Furthermore, the plurality of groups of wire-through grooves are all located on the same side of their corresponding pressing grooves, and avoidance grooves are provided on the sides of the top cover along the direction in which the wire-through grooves are opened.

[0010] Furthermore, the lower surface of the top cover is configured as a concave cavity structure and at least one convex rib is provided in the concave cavity, and the lower surface of the convex rib is lower than the upper surface of the protrusion when the top cover is closed on the shell.

[0011] Furthermore, at least one group of positioning holes is arranged on the top of the plastic body, and positioning posts which are inserted into the positioning holes and are interference-fitted with the positioning holes are arranged on the bottom of the top cover.

[0012] Furthermore, a pre-insertion portion is coaxially arranged at the bottom of the positioning post, and a radius of the pre-insertion portion is smaller than a radius of the positioning post.

[0013] Furthermore, the positioning column and the convex rib are connected via a reinforcing rib.

[0014] The utility model provides a containerized fuel cell voltage inspection connector, comprising a shell, a plurality of pressing grooves penetrating the upper and lower end surfaces of the shell, and a top cover covering the upper part of the shell. The cable and the terminal are electrically connected and fixed in position through a plastic body, the plastic body is clamped in the pressing groove, and then covered on the shell through the top cover so that the connector as a whole presents a containerized structure.

[0015] The utility model can fix the cable and the terminal, and prevent the cable and the terminal from being loosened and causing connection failure during the operation of the fuel cell, thereby ensuring the voltage inspection work. The utility model has high working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance of a containerized fuel cell voltage inspection connector of the utility model;

[0017] Figure 2 It is an explosion schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the shell;

[0019] Figure 4 It is a schematic diagram of the structure of the top cover;

[0020] Figure 5 It is a schematic diagram of the structure of a plastic body;

[0021] Figure 6 It is a schematic diagram of the structure in which the plastic body is engaged in the pressing groove.

[0022] Figure numerals: shell 1, plastic body 2, top cover 3, pressing groove 4, first end 5, second end 6, card slot 7, elastic card block 8, protrusion 9, wire groove 10, avoidance groove 11, convex rib 12, positioning hole 13, positioning column 14, pre-insertion part 15, reinforcing rib 16, cable 17, terminal 18, guide groove 19. DETAILED DESCRIPTION

[0023] like Figure 1 and Figure 2The illustrated embodiment of a packaged fuel cell voltage inspection connector comprises a housing 1, a plurality of pressing grooves 4 penetrating the upper and lower end surfaces of the housing 1, a plastic body 2 engaged in each pressing groove 4, and a top cover 3 covering the upper portion of the housing 1. The plastic body 2 comprises a first end 5 having a connecting cable 17 and a second end 6 having a connecting terminal 18, the cable 17 and the terminal 18 are electrically connected in the plastic body 2, and the cable 17 is led out from the upper opening of the pressing groove 4, and the terminal 18 is led out from the lower opening of the pressing groove 4.

[0024] The cable 17 and the terminal 18 can be fixed in each plastic body 2 by crimping. In this embodiment, the cable 17 and the terminal 18 are welded and molded by overlapping injection molding at the connection between the cable 17 and the terminal 18 to maintain the electrical conductivity of the cable 17 and the terminal 18.

[0025] like Figure 5 and Figure 6 As shown, an inwardly recessed slot 7 is provided at the lower end of the side of the plastic body 2, and an elastic block 8 is provided on the side of the pressing groove 4. The elastic block 8 is pressed into the slot 7 when the plastic body 2 moves down along the pressing groove 4, thereby fixing the position of the plastic body 2 in the pressing groove 4.

[0026] Furthermore, the plastic body 2 is provided with an inwardly recessed guide groove 19 below the card slot 7, and the guide groove 19 is inclined from bottom to top toward the outside of the plastic body 2. During the downward pressing process of the plastic body 2, a gradually increasing pressing force is applied to the elastic card block 8, and the deformation of the elastic card block 8 is gradually increased, thereby reducing the difficulty of pressing the elastic card block 8 into the card slot 7.

[0027] like Figure 3 and Figure 4 As shown, in the embodiment, two rows of groove groups are arranged in parallel in the housing 1, and the number of grooves 4 in each row of groove groups is three, which can correspond to placing six groups of plastic bodies 2. The grooves 4 in the two rows of groove groups are arranged crosswise, and after the plastic bodies 2 are loaded into the grooves 4, the cables 17 connected to each plastic body 2 can pass between the other two groups of plastic bodies 2, and the space in the housing 1 is fully utilized without overlapping between the cables 17.

[0028] Furthermore, the housing 1 is provided with two groups of protrusions 9 on the upper surface corresponding to each group of the pressing grooves 4, the protrusions 9 extending upward from one groove edge of the pressing groove 4 and arranged opposite to each other, and a wire groove 10 for positioning the cable 17 is formed between the two groups of protrusions 9. The wire groove 10 is set to a size that is interference-fitted with the cable 17, and the cable 17 is placed in the wire groove 10 to locate the position of the cable 17.

[0029] Furthermore, the wire grooves 10 are all located on the same side of their corresponding pressing grooves 4, and the top cover 3 is provided with avoidance grooves 11 along the side of the opening direction of the wire grooves 10. All cables 17 connected to the plastic body 2 are led out from one side of the connector through the wire grooves 10, which helps to organize multiple cables 17 and avoid excessive bending of the cables 17.

[0030] Furthermore, the plane where the upper groove edge of the avoidance groove 11 is located is lower than the upper surface of the protrusion 9, and the avoidance groove 11 cooperates with the protrusion 9 to form a relatively closed wire-through groove 10. When the cable 17 in the cavity is offset in the wire-through groove 10 due to external shaking or inversion, the cable 17 will not escape from the wire-through groove 10 due to the obstruction of the upper groove edge of the avoidance groove 11.

[0031] Similarly, the lower surface of the top cover 3 is configured as a recessed cavity structure and at least one convex rib 12 is provided in the recessed cavity. The lower surface of the convex rib 12 is lower than the upper surface of the protrusion 9 when the top cover 3 is closed on the shell 1. The convex rib 12 can play the same role as the wire groove 10 to prevent the cable 17 from escaping from the wire groove 10.

[0032] Furthermore, at least one group of positioning holes 13 is provided on the top of the plastic body 2. In the embodiment, one group of positioning holes 13 is provided in the middle position of the plastic body 2, and two rows of groove groups are arranged on both sides of the positioning holes 13; a part of the positioning holes 13 is located at the angular position of the plastic body 2 to assist the central positioning hole 13 in positioning; a positioning column 14 is provided at the bottom of the top cover 3, which is inserted into the positioning hole 13 and has an interference fit with the positioning hole 13, and the top cover 3 is fixed on the top of the plastic body 2 through the cooperation between the positioning column 14 and the positioning hole 13.

[0033] Furthermore, a pre-insertion portion 15 is coaxially arranged at the bottom of the positioning column 14, and the radius of the pre-insertion portion 15 is smaller than the radius of the positioning column 14. When the top cover 3 is closed, the pre-insertion portion 15 first extends into the positioning hole 13 to provide pre-positioning for the positioning column 14, thereby reducing the difficulty of the positioning column 14 extending into the positioning hole 13.

[0034] Furthermore, the positioning column 14 and the convex rib 12 are connected via a reinforcing rib 16 to maintain the strength of the positioning column 14 .

[0035] The assembly process of this embodiment is as follows: strip the insulating jacket of the end of the cable 17, fix the end of the cable 17 and the terminal 18 by welding or crimping, and form the plastic body 2 at the connection between the cable 17 and the terminal 18 by overlapping injection molding. The plastic body 2 is loaded into each groove 4 of the housing 1, so that the plastic body 2 is clamped in the groove 4, the cable 17 on the plastic housing 1 extends out of the upper opening of the groove 4 and is led out to the outside of the housing 1 through the wire groove 10, and the terminal 18 extends out of the lower opening of the groove 4. Then, the top cover 3 is assembled on the top of the housing 1, and each plastic body 2 is fixed in the housing 1.

[0036] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A containerized fuel cell voltage inspection connector, characterized in that: It comprises a shell (1), a plurality of pressing grooves (4) penetrating the upper and lower end surfaces of the shell (1), a plastic body (2) snap-fitted into each pressing groove (4), and a top cover (3) covering the upper part of the shell (1); The plastic body (2) comprises a first end (5) and a second end (6) which are in upper and lower relative positions, the first end (5) is connected to a cable (17), the second end (6) is connected to a terminal (18), and the cable (17) and the terminal (18) are electrically conductive within the plastic body (2).

2. A containerized fuel cell voltage inspection connector as claimed in claim 1, characterized in that: An inwardly recessed card slot (7) is provided at the lower end of the side of the plastic body (2), and an elastic card block (8) is provided at the side of the pressing groove (4). When the plastic body (2) moves downward along the pressing groove (4), the elastic card block (8) is pressed into the card slot (7).

3. A containerized fuel cell voltage inspection connector as claimed in claim 2, characterized in that: The plastic body (2) is further provided with an inwardly recessed guide groove (19) below the card slot (7), and the guide groove (19) is inclined from bottom to top toward the outer side of the plastic body (2).

4. The integrated fuel cell voltage inspection connector according to claim 1, characterized in that: The housing (1) is provided with two groups of protrusions (9) on the upper surface corresponding to each group of pressing grooves (4); the protrusions (9) extend upward from one groove edge of the pressing groove (4) and are arranged opposite to each other; a wire groove (10) for positioning cables (17) is formed between the two groups of protrusions (9).

5. A containerized fuel cell voltage inspection connector as claimed in claim 4, characterized in that: The plurality of groups of wire-through grooves (10) are all located on the same side of the corresponding pressing grooves (4), and the top cover (3) is provided with avoidance grooves (11) along the side edges of the opening direction of the wire-through grooves (10).

6. The integrated fuel cell voltage inspection connector according to claim 1, characterized in that: The lower surface of the top cover (3) is arranged as a concave cavity structure and at least one convex rib (12) is arranged in the concave cavity; the lower surface of the convex rib (12) is lower than the upper surface of the protrusion (9) when the top cover (3) is covered on the shell (1).

7. A fuel cell voltage inspection connector as claimed in claim 6, characterized in that: The top of the plastic body (2) is provided with at least one group of positioning holes (13), and the bottom of the top cover (3) is provided with positioning columns (14) which are inserted into the positioning holes (13) and are interference-fitted with the positioning holes (13).

8. The integrated fuel cell voltage inspection connector according to claim 7, characterized in that: A pre-insertion portion (15) is coaxially arranged at the bottom of the positioning column (14), and the radius of the pre-insertion portion (15) is smaller than the radius of the positioning column (14).

9. The integrated fuel cell voltage inspection connector according to claim 7, characterized in that: The positioning column (14) and the convex rib (12) are connected via a reinforcing rib (16).

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