A connection structure of a fuel cell DC / DC transformer

Abstract

The utility model provides a connection structure of a fuel cell DC / DC transformer, belonging to the technical field of transformers. The connection structure of the fuel cell DC / DC transformer comprises a fuel cell body; a fuel cell plug interface, which is arranged at one side end of the fuel cell body; a connecting shell, which is fixedly connected to one side end of the fuel cell plug interface; a fuel cell output end, which is arranged in the connecting shell; a DC converter, which is arranged at one side end of the connecting shell; an electrical connection end, which is fixedly connected to one side end of the DC converter; and a connecting mechanism, which is provided with two groups, and can transform the output voltage by enabling the DC converter and the output end of the fuel cell plug interface to be quickly electrically connected and quickly disassembled through the connecting structure and the disassembly mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and in particular relates to a connection structure of a DC / DC transformer for a fuel cell. Background Art

[0002] A battery DC / DC transformer refers to a device that converts a DC power supply of a certain voltage level into a DC power supply of another voltage level. DC / DC is divided into two categories: step-up power supply and step-down power supply according to the voltage level conversion relationship, and is divided into two categories: isolated power supply and non-isolated power supply according to the input-output relationship.

[0003] Authorization announcement number "CN219350777U" discloses a transformer plug, comprising an upper box body and a lower box body, wherein circuit boards are arranged in the upper box body and the lower box body, and a side of the lower box body facing away from the upper box body is recessed to form a limiting groove, a supporting plate is inserted in the limiting groove, and two through holes are provided on the side of the supporting plate facing away from the lower box body, and two circular holes aligned with the through holes are provided in the limiting groove, a U-shaped frame is provided on the side of the circuit board facing away from the circular hole, a plastic block is inserted in the space formed by the U-shaped frame and the upper box body, two through holes aligned with the circular holes are provided on the side of the U-shaped frame facing the circular hole, and two small holes aligned with the through holes are provided on one side of the circuit board, and screws are inserted in the through holes, and the screws pass through the circular hole, the small hole, and the through hole in sequence and are threadedly connected in the blind hole by self-tapping. The utility model has the following beneficial effects: reducing the use of screws and improving assembly efficiency.

[0004] The above new type can reduce the use of screws and improve assembly efficiency, but the above still needs to be installed by screws when installing and fixing the transformer head, and the effect of quick installation that can be fixed by insertion cannot be achieved, which affects the installation efficiency of the transformer. Utility Model Content

[0005] The utility model aims to provide a connection structure for a fuel cell DC / DC transformer, aiming to solve the problem that in the prior art, the transformer head still needs to be installed by screws, and the effect of quick installation by insertion and fixing cannot be achieved, which affects the installation efficiency of the transformer.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A connection structure of a fuel cell DC / DC transformer, comprising:

[0008] Fuel cell body;

[0009] A fuel cell plug-in port, the fuel cell plug-in port being provided at one side end of the fuel cell body;

[0010] A connecting shell, wherein the connecting shell is fixedly connected to one side end of the fuel cell plug-in port;

[0011] A fuel cell output end, wherein the fuel cell output end is disposed in the connecting housing;

[0012] A DC converter, the DC converter being arranged at one side end of the connecting shell;

[0013] An electrical connection end, the electrical connection end being fixedly connected to one side of the DC converter;

[0014] A connection mechanism, wherein the connection mechanism is provided with two groups, each group of the connection comprises a block slot, a second spring slot, a fixed slot, a fixed block and a second spring, two second spring slots and two second springs are provided, the block slot is provided at one side end of the DC converter, two second spring slots are provided at one side inner wall of the block slot, the fixed slot is provided at one side inner wall of the connection shell, the fixed block is slidably connected in the block slot and the fixed slot, and two second springs are fixedly connected to one side inner wall of the second spring and one side end of the fixed block;

[0015] The disassembly mechanism is provided with two groups, and the two groups of the disassembly mechanism are both arranged in the connecting shell and connected with the connecting structure.

[0016] As a preferred solution of the utility model, each group of the disassembly mechanism includes an extrusion groove, a first spring groove, an extrusion block, a pushing block and a first spring, the first spring groove and the first spring are connected, the extrusion groove is opened at one side end of the connecting shell, two first spring grooves are opened on one side inner wall of the extrusion groove, the extrusion block is slidably connected in the extrusion groove, the pushing block is fixedly connected to the side end of the extrusion block and slides in the extrusion groove and the fixed groove, and the two first springs are respectively fixedly connected to the side inner walls of the two first spring grooves and the side end of the extrusion block.

[0017] As a preferred solution of the utility model, an electrical output end is provided at one side end of the DC converter.

[0018] As a preferred solution of the utility model, a warning sleeve is fixedly connected to the outer surface of the DC converter.

[0019] As a preferred solution of the utility model, a dustproof plate is fixedly connected to one side end of the connecting shell, and the dustproof plate is in contact with an inner wall of one side of the DC converter.

[0020] As a preferred solution of the utility model, a guide opening is provided at one side end of the DC converter.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. In this scheme, when the output voltage of the fuel cell body needs to be transformed through this device, the output end of the DC converter and the fuel cell plug interface can be quickly electrically connected and quickly disassembled through the connection structure and the disassembly mechanism to transform the output voltage, and the output power of the fuel cell body can be controlled by replacing different DC converters. The connection mechanism makes the connection between the DC converter body and the fuel cell body more stable and will not fall off. The connection mechanism and the disassembly mechanism are arranged on both sides of the connection shell so as not to affect the normal connection of the output end of the fuel cell body after the DC converter is removed.

[0023] 2. In this solution, through this device, a warning color can be applied on the surface of the warning sleeve to remind the DC converter to be inserted into the fuel cell socket for voltage transformation, and the transformer power can be printed on the DC converter for easy selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a three-dimensional diagram of the utility model;

[0026] Figure 2 It is a first structural cross-sectional view of the utility model;

[0027] Figure 3 It is a cross-sectional view of the second mechanism in the utility model;

[0028] Figure 4 It is a cross-sectional exploded view of the structure in the utility model;

[0029] Figure 5 For this utility model Figure 3 Enlarged view of point A in the middle.

[0030] In the figure: 1. fuel cell body; 2. fuel cell plug interface; 3. connection shell; 4. fuel cell output terminal; 5. DC converter; 6. electrical connection terminal; 7. extrusion groove; 8. first spring groove; 9. block groove; 10. second spring groove; 11. fixing groove; 12. fixing block; 13. second spring; 14. extrusion block; 15. push block; 16. first spring; 17. electrical output terminal; 18. guide port; 19. warning sleeve; 20. dustproof plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Example

[0033] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0034] A connection structure of a fuel cell DC / DC transformer, comprising:

[0035] Fuel cell body 1;

[0036] A fuel cell plug-in port 2, which is disposed at one side of the fuel cell body 1;

[0037] A connecting shell 3, the connecting shell 3 is fixedly connected to one side end of the fuel cell plug-in port 2;

[0038] A fuel cell output terminal 4, the fuel cell output terminal 4 is arranged in the connecting shell 3;

[0039] A DC converter 5, which is arranged at one side end connected to the housing 3;

[0040] An electrical connection terminal 6, the electrical connection terminal 6 is fixedly connected to one side of the DC converter 5;

[0041] The connection mechanism is provided with two groups, each group of connections includes a block slot 9, a second spring slot 10, a fixing slot 11, a fixing block 12 and a second spring 13. Two second spring slots 10 and two second springs 13 are provided. The block slot 9 is provided at one side end of the DC converter 5. The two second spring slots 10 are provided at one side inner wall of the block slot 9. The fixing slot 11 is provided at one side inner wall of the connection housing 3. The fixing block 12 is slidably connected in the block slot 9 and the fixing slot 11. The two second springs 13 are fixedly connected to one side inner wall of the second spring 13 and one side end of the fixing block 12.

[0042] Disassembly mechanism: There are two groups of disassembly mechanisms, and both groups of disassembly mechanisms are arranged in the connecting shell 3 and connected to the connecting structure.

[0043] In a specific embodiment of the utility model, a DC converter 5 is arranged at the output end of the fuel cell body 1 for DC voltage transformation. When the output voltage of the fuel cell body 1 needs to be transformed, the DC converter 5 can be inserted into the fuel cell plug interface 2 so that the electrical connection end 6 contacts the fuel cell output end 4. The inner wall of one side of the DC converter 5 fits the outer surface of the connecting shell 3. When the DC converter 5 is inserted into the fuel cell plug interface 2, the inner wall of one side of the DC converter 5 slides close to the outer surface of the connecting shell 3. When the DC converter 5 contacts the fixed card block 12, the contact surface of the fixed card block 12 and the DC converter 5 is a circumferential surface. The DC converter 5 squeezes the fixed card block 12 to slide into the card block groove 9 and squeezes the two fixed card blocks 12 to shrink. When the DC converter 5 is fully inserted into the fuel cell plug interface 2 so that the fuel cell output end 4 and the electrical connection end 6 contact and are electrically connected, the fixed groove 11 also slides to the fixed card block 12, and the previously squeezed The compressed second spring 13 rebounds and pushes the fixed card block 12 into the fixed groove 11 to complete the fixation of the DC converter 5. When the DC converter 5 needs to be disassembled, the disassembly mechanism can be pressed from both sides to push the fixed card block 12 back into the card block groove 9 to release the fixation restriction of the DC converter 5 and then take out the DC converter 5. When the output voltage of the fuel cell body 1 needs to be transformed through the device, the output end of the DC converter 5 and the fuel cell plug interface 2 can be quickly electrically connected and quickly disassembled through the connecting structure and the disassembly mechanism to transform the output voltage, and the output power of the fuel cell body 1 can be controlled by replacing different DC converters 5. The connection mechanism makes the connection between the DC converter 5 body and the fuel cell body 1 more stable and will not fall off. The connection mechanism and the disassembly mechanism are arranged on both sides of the connecting shell 3 so as not to affect the normal connection of the output end of the fuel cell body 1 after the DC converter 5 is removed.

[0044] For details, please refer to Figure 1-Figure 5 Each set of disassembly mechanisms includes an extrusion groove 7, a first spring groove 8, an extrusion block 14, a push block 15 and a first spring 16. The first spring groove 8 and the first spring 16 are provided in pairs. The extrusion groove 7 is opened at one side end of the connecting shell 3. The two first spring grooves 8 are opened on one side inner wall of the extrusion groove 7. The extrusion block 14 is slidably connected in the extrusion groove 7. The push block 15 is fixedly connected to the side end of the extrusion block 14 and slides in the extrusion groove 7 and the fixed groove 11. The two first springs 16 are respectively fixedly connected to the side inner walls of the two first spring grooves 8 and the side end of the extrusion block 14.

[0045] In this embodiment: when the DC converter 5 needs to be disassembled, the operator can press the extrusion blocks 14 on both sides of the DC converter 5 with his fingers from both sides to press the two extrusion blocks 14 into the extrusion groove 7. When the extrusion blocks 14 slide into the extrusion groove 7, the two first springs 16 are squeezed to shrink, and the pushing block 15 on one side of the extrusion block 14 is pushed to contact the side end of the fixed block 12, and the fixed block 12 is squeezed out of the fixed groove 11 to release the fixed restriction of the fixed block 12 on the DC converter 5. Then, the operator pinches the DC converter 5 with his fingers without loosening and pulls the DC converter 5 out of the fuel cell plug interface 2 to complete the rapid disassembly of the DC converter 5. After the operator releases his hand, the first spring 16 rebounds and bounces the extrusion block 14 and the pushing block 15 back to their original positions without affecting the next connection.

[0046] For details, please refer to Figure 1-Figure 5 An electrical output terminal 17 is provided at one side of the DC converter 5 .

[0047] In this embodiment: the electrical output terminal 17 is provided with one side of the DC converter 5. When the DC converter 5 is inserted into the fuel cell socket 2 to connect the fuel cell output terminal 4 and the electrical connection terminal 6, the DC converter 5 is used to change the output power of the electrical output terminal 17 to meet the use of different electrical appliances.

[0048] For details, please refer to Figure 1-Figure 5 A warning sleeve 19 is fixedly connected to the outer surface of the DC converter 5 .

[0049] In this embodiment: the warning sleeve 19 is set outside the DC converter 5, and a warning color can be painted on the surface of the warning sleeve 19 to remind the DC converter 5 to be inserted into the fuel cell socket 2 for voltage transformation, and the transformer power can be printed on the DC converter 5 for easy selection.

[0050] For details, please refer to Figure 1-Figure 5 A dustproof plate 20 is fixedly connected to one side end of the connecting shell 3 , and the dustproof plate 20 is in contact with an inner wall of one side of the DC converter 5 .

[0051] In this embodiment: the dustproof plate 20 is arranged on one side of the connecting shell 3 and fits with the inner wall of the DC converter 5. When the DC converter 5 is inserted into the connecting shell 3, the dustproof plate 20 slides on the inner wall of the DC converter 5 without affecting the connection between the DC converter 5 and the connecting shell 3. When the DC converter 5 is pulled out, the dustproof plate 20 extends out of the connecting shell 3 and the fuel cell output terminal 4 is sleeved on the dustproof plate 20 to prevent the fuel cell output terminal 4 from being unused for a long time and causing dust to accumulate and cause poor contact.

[0052] For details, please refer to Figure 1-Figure 5 A guide opening 18 is provided at one side end of the DC converter 5 .

[0053] In this embodiment: the guide opening 18 is provided at the electrical output terminal 17, and when the electrical plug is inserted into the guide opening 18, it can automatically slide into the electrical output terminal 17 through the guide opening 18, so as to facilitate the insertion of the electrical plug;

[0054] It should be noted that the fuel cell body 1 and the DC converter 5 used in the device are both existing technologies and will not be described in detail here.

[0055] The working principle and use process of the utility model are as follows: when the DC converter 5 is inserted into the fuel cell plug interface 2, the inner wall of one side of the DC converter 5 slides close to the outer surface of the connecting shell 3. When the DC converter 5 contacts the fixed card block 12, the contact surface of the fixed card block 12 and the DC converter 5 is a circumferential surface. The DC converter 5 squeezes the fixed card block 12 to slide into the card block groove 9 and squeezes the two fixed card blocks 12 to shrink. When the DC converter 5 is fully inserted into the fuel cell plug interface 2 so that the fuel cell output end 4 and the electrical connection end 6 are in contact and electrically connected, the fixed groove 11 also slides to the fixed card block 12, and the second spring 13 that was squeezed and shrunk before rebounds to push the fixed card block 12 into the fixed groove 11 to complete the fixation of the DC converter 5. When the DC converter 5 needs to be inserted into the fuel cell plug interface 2, the fixed card block 12 is pushed into the fixed groove 11. When disassembling, the disassembly mechanism can be pressed from both sides to push the fixed block 12 back into the block groove 9 to release the fixed restriction on the DC converter 5, and then the DC converter 5 can be taken out. When the output voltage of the fuel cell body 1 needs to be transformed through the device, the output end of the DC converter 5 and the fuel cell plug interface 2 can be quickly electrically connected and quickly disassembled through the connection structure and the disassembly mechanism to transform the output voltage, and the output power of the fuel cell body 1 can be controlled by replacing different DC converters 5. The connection mechanism makes the connection between the DC converter 5 body and the fuel cell body 1 more stable and will not fall off. The connection mechanism and the disassembly mechanism are arranged on both sides of the connecting shell 3 so as not to affect the normal connection of the output end of the fuel cell body 1 after the DC converter 5 is removed.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A connection structure of a fuel cell DC / DC transformer, characterized in that: include: A fuel cell body (1); A fuel cell plug-in port (2), wherein the fuel cell plug-in port (2) is disposed at one side end of the fuel cell body (1); A connecting shell (3), wherein the connecting shell (3) is fixedly connected to one side end of the fuel cell plug-in port (2); A fuel cell output end (4), wherein the fuel cell output end (4) is arranged in the connecting housing (3); A DC converter (5), wherein the DC converter (5) is arranged at one side end connected to the housing (3); An electrical connection end (6), wherein the electrical connection end (6) is fixedly connected to one side end of the DC converter (5); A connection mechanism, wherein the connection mechanism is provided with two groups, each group of the connection comprises a block slot (9), a second spring slot (10), a fixing slot (11), a fixing block (12) and a second spring (13), two second spring slots (10) and two second springs (13) are provided, the block slot (9) is provided at one side end of the DC converter (5), the two second spring slots (10) are provided at one side inner wall of the block slot (9), the fixing slot (11) is provided at one side inner wall of the connection housing (3), the fixing block (12) is slidably connected in the block slot (9) and the fixing slot (11), and the two second springs (13) are fixedly connected to one side inner wall of the second spring (13) and one side end of the fixing block (12); The disassembly mechanism is provided with two groups, and both groups of the disassembly mechanism are arranged in the connection shell (3) and connected to the connection structure.

2. The connection structure of a fuel cell DC / DC transformer according to claim 1, characterized in that: Each group of the disassembly mechanisms comprises an extrusion groove (7), a first spring groove (8), an extrusion block (14), a push block (15) and a first spring (16); the first spring groove (8) and the first spring (16) are provided in pairs; the extrusion groove (7) is opened at one side end of the connecting shell (3); the two first spring grooves (8) are opened at one side inner wall of the extrusion groove (7); the extrusion block (14) is slidably connected in the extrusion groove (7); the push block (15) is fixedly connected to the side end of the extrusion block (14) and slides in the extrusion groove (7) and the fixed groove (11); the two first springs (16) are respectively fixedly connected to the side inner walls of the two first spring grooves (8) and the side end of the extrusion block (14).

3. The connection structure of a fuel cell DC / DC transformer according to claim 2, characterized in that: An electrical output terminal (17) is provided at one side end of the DC converter (5).

4. The connection structure of a fuel cell DC / DC transformer according to claim 3, characterized in that: A warning sleeve (19) is fixedly connected to the outer surface of the DC converter (5).

5. The connection structure of a fuel cell DC / DC transformer according to claim 4, characterized in that: A guide opening (18) is provided at one side end of the DC converter (5).

6. The connection structure of a fuel cell DC / DC transformer according to claim 5, characterized in that: A dustproof plate (20) is fixedly connected to one side end of the connection housing (3), and the dustproof plate (20) is in contact with an inner wall of one side of the DC converter (5).

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