End face contact grounding power conversion connector

Abstract

The utility model discloses a power conversion connector with end face contact grounding. The power conversion connector comprises a grounding reed, a socket, a plug and a plurality of fixing pieces, the grounding reed comprises a sheet-shaped reed body, the outer edge of the reed body is provided with a plurality of elastic teeth, and the lower surface of the reed body is provided with a plurality of vertical feet. A floating seat of the socket comprises a plugging groove with an open upper end, a plurality of accommodating grooves are formed in the lower wall of the plugging groove, fixing holes are formed in the lower walls of the accommodating grooves, grounding reeds are connected with the lower groove wall of the plugging groove, vertical pins enter the accommodating grooves, fixing pieces enter first stepped through holes in the vertical pins, and the lower ends of the fixing pieces are connected with the fixing holes; the lower end face of the plug presses the elastic teeth to deform until the elastic teeth make contact with the upper surface of the spring body, and elastic end face contact grounding is formed. According to the utility model, the volume and the space of the connector are reduced, the manufacturing difficulty and the manufacturing cost of products are reduced, and the grounding function between the shells is reliably realized.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection, in particular to a power-changing connector with an end face in contact with a ground. Background Art

[0002] Today's new energy industry is developing rapidly. New energy vehicles often use battery swap connectors to connect the whole vehicle and the battery pack, that is, to charge or discharge the battery pack. The battery swap connector includes a socket and a plug that are inserted into each other, and the grounding function needs to be realized between the shells of the two. Implementation method one: relying on PE terminal contact to achieve the grounding function, its structure is relatively complex, the overall size is large, the number of product parts increases, and the assembly process is increased. The material cost and production cost are high, and the overall space layout occupied by the connector is also larger; Implementation method two: The grounding function is achieved through guide pins / guide holes. Copper alloy guide parts are used or copper sleeves are added in the middle to achieve this. However, as the number of battery swaps increases, the contact may fail due to wear in the hole, and the reliability is poor, making it difficult to obtain an effective grounding function. Utility Model Content

[0003] In order to solve one or more of the above problems, the utility model provides a power-changing connector with end face contact and grounding.

[0004] According to one aspect of the utility model, the power-changing connector with end surface contacting ground comprises: a grounding spring, a socket, a plug and a plurality of fixing parts;

[0005] The grounding spring comprises a sheet-shaped spring body, a plurality of spring teeth are arranged on the outer edge of the spring body, and a plurality of vertical feet are arranged on the lower surface of the spring body;

[0006] The floating seat of the socket comprises a plug-in slot with an open upper end, a plurality of receiving slots are arranged on the lower wall of the plug-in slot, a fixing hole is arranged on the lower wall of the receiving slot, a grounding spring is connected to the lower slot wall of the plug-in slot, a vertical foot enters the receiving slot, a fixing piece enters the first stepped through hole in the vertical foot and the lower end is connected to the fixing hole;

[0007] When the plug is inserted into the socket, the lower end surface of the plug presses the spring teeth to deform until it contacts the upper surface of the spring body, forming an elastic end surface contacting the ground.

[0008] In some embodiments, a softening arc is further provided on the elastic foot.

[0009] In some embodiments, the spring tooth does not exceed the edge of the spring body, and a gap is provided between the spring tooth and the spring body.

[0010] In some embodiments, a lower groove wall of the plug-in groove forms a plurality of lower grooves, and the lower grooves are located directly below the spring teeth.

[0011] In some embodiments, a first positioning groove is provided on the lower groove wall of the plug-in groove, and the first positioning groove has the same shape profile as the spring body.

[0012] In some embodiments, a first rectangular contour opening is provided at one end of the spring body and a second arc contour opening is provided at the other end; vertical feet are provided at the four corner edges and the middle of a long side of the spring body.

[0013] In some embodiments, three parallel and parallel spring teeth are evenly distributed on two short sides of the spring body, and a radial spring tooth is provided on the middle edge of the second contoured opening.

[0014] In some embodiments, the fixing member is a rivet or a cylindrical head screw member, and the fixing member is riveted or threaded in the fixing hole.

[0015] In some embodiments, the ground spring is beryllium copper.

[0016] When the plug and socket of the power-swap connector are plugged in, after they are fully plugged in, the end face of the plug shell will make elastic contact with the grounding spring, and the several spring teeth of the grounding spring will have a certain elastic deformation, so that reliable contact and conduction are formed between the shells. Its beneficial effects are: first, the grounding function is realized by using a grounding spring, which has a simple structure and directly adds a metal sheet to the original plug-in slot. At the same time, the PE terminal of the power-swap connector is reduced, which greatly reduces the number of parts, reduces the volume and space of the connector, reduces the manufacturing difficulty and manufacturing cost of the product, thereby improving the competitiveness of the product, and also has a certain weight reduction effect; second, the reed-type elastic contact is used to realize the overall end face contact between the shells, and the grounding function between the shells is reliably realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional schematic diagram of a socket and a grounding spring of a power-changing connector with end face contact and grounding in one embodiment of the utility model;

[0018] Figure 2 for Figure 1 A three-dimensional schematic diagram of the floating seat and the grounding spring shown;

[0019] Figure 3 for Figure 2 A top view of the floating seat and the grounding spring shown;

[0020] Figure 4 for Figure 2 A three-dimensional schematic diagram of the grounding spring shown;

[0021] Figure 5 for Figure 2 A three-dimensional schematic diagram of the floating seat shown;

[0022] Figure 6 for Figure 1 A schematic top view of the floating seat shown;

[0023] Figure 7 for Figure 1 A three-dimensional schematic diagram of a plug of a power-changing connector with an end face in contact with a ground;

[0024] Grounding spring 1, spring body 10, spring tooth 101, vertical foot 102, first stepped through hole 103, cantilever folded plate 104, elastic foot 105, softening arc 106, notch 107, first contoured opening 108, second contoured opening 109; fixing member 3;

[0025] Socket 01, floating seat 2, plug-in slot 20, accommodating slot 201, fixing hole 202, first positioning groove 203, lower groove 204, first lower groove 205, output cable 4, signal jack 5, electrode jack 6, limit seat 7, guide sleeve 8, elastic fixing component 9;

[0026] Plug 02, electrode pin 021, signal pin 022, guide column 023; DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0028] Figures 1 to 7 A power-changing connector with end-face contact and grounding according to an embodiment of the utility model is schematically shown. As shown in the figure, the device includes: a grounding spring 1, a socket 01, a plug 02 and a plurality of fixing parts 3;

[0029] The grounding spring 1 comprises a sheet-shaped spring body 10, a plurality of spring teeth 101 are arranged on the outer edge of the spring body 10, a plurality of vertical legs 102 are arranged on the lower surface of the spring body 10, and a vertical first step through hole 103 is arranged on the vertical legs 102;

[0030] The floating seat 2 of the socket 01 includes a plug-in slot 20 with an open upper end, a plurality of receiving slots 201 matching the vertical legs 102 are provided on the lower wall of the plug-in slot 20, a fixing hole 202 is provided on the lower wall of the receiving slot 201, the grounding spring 1 is placed against the lower slot wall of the plug-in slot 20, the vertical legs 102 enter the receiving slot 201, the fixing member 3 enters the first stepped through hole 103 and the lower end is connected to the fixing hole 202;

[0031] When the plug 02 is inserted into the socket 01 , the lower end surface of the plug 02 presses the spring teeth 101 to deform until it contacts the upper surface of the spring body 10 , thereby forming a stable and reliable elastic end surface contact grounding.

[0032] When the plug and socket of the power-swap connector are working, after being fully inserted into place, the shell end face of the plug 02 will make elastic contact with the grounding spring 1, and the several spring teeth 101 of the grounding spring 1 will have a certain elastic deformation, so that reliable contact and conduction are formed between the shells. Its beneficial effects are: first, the grounding function is realized by using the grounding spring 1, which has a simple structure, and a metal sheet is directly added to the original plug-in slot 20, while the PE terminal of the power-swap connector is reduced, which greatly reduces the number of parts, reduces the volume and space of the connector, reduces the manufacturing difficulty and manufacturing cost of the product, thereby improving the competitiveness of the product, and also has a certain weight reduction effect; second, the reed-type elastic contact is used to realize the overall end face contact between the shells, and the grounding function between the shells is reliably realized; third, the vertical foot 102 and the receiving slot 201 are set, which effectively reduces the overall structural thickness, reduces the size of the equipment, and ensures good connection strength.

[0033] Preferably, the plug 02 is connected to the battery pack, and electrode pins 021 are arranged side by side at one middle end of the plug 02 and a signal pin 022 is arranged at the other end, and guide posts 023 are also arranged at both ends of the plug 02.

[0034] The socket 01 includes a limit seat 7, two electrode sockets 6, a signal socket 5, two output cables 4, a guide sleeve 8, and four elastic fixing components 9; the output cables 4 are connected to the electrical components through a shunt box.

[0035] Four elastic fixing components 9 are arranged around the limit seat 7. The floating seat 2 is sleeved in the vertical through hole of the limit seat 7 and connected to the limit seat 7 through a plane elastic member. The floating seat 2 is fixedly connected to two vertical electrode sockets 6 and a signal socket 5.

[0036] When the socket 01 and the plug 02 are plugged in, the guide column 023 is inserted into the guide sleeve 8, the electrode pin 021 is inserted into the electrode socket 6, and the signal pin 022 is inserted into the signal socket 5;

[0037] The two output cables 4 are electrically connected to the ends of the electrode sockets 6. The beneficial effect is that after the guide pin 023 of the plug 02 is introduced into the guide sleeve 8, the shell will be partially connected at the same time, and the above structure realizes the electrical connection, protection and floating functions.

[0038] Furthermore, the spring teeth 101 include a cantilever folded plate 104 tilted upward at a small angle, the end of the cantilever folded plate 104 is a second-bent elastic foot 105 that is nearly horizontal, and a gap 107 is provided between adjacent spring teeth 101. The beneficial effect is that the structure can achieve good end face elastic contact, ensure good grounding function, and have high reliability.

[0039] Preferably, a softening arc 106 is also provided on the elastic foot 105. The beneficial effects are: no abnormal stress load, while protecting the upper and lower contact parts, and being able to be used for a long time.

[0040] Preferably, the spring tooth 101 does not exceed the edge of the spring body 10, and a gap 107 is provided between the spring tooth 101 and the spring body 10. The beneficial effect is that this arrangement can ensure good elasticity.

[0041] Preferably, the lower groove wall of the plug-in groove 20 is formed with a plurality of lower grooves 204, and the lower grooves 204 are located directly below the spring teeth 101. The beneficial effect is that this arrangement can ensure the downward pressing distance of the spring teeth 101.

[0042] Preferably, the lower groove wall of the plug-in groove 20 is provided with a first positioning groove 203, the first positioning groove 203 and the spring body 10 have the same shape and profile, the thickness of the spring body 10 is equal to or slightly greater than the depth of the first positioning groove 203, the accommodating groove 201 is arranged in the first positioning groove 203, and the edge of the first positioning groove 203 also forms a plurality of lower grooves 204. The beneficial effect is that the first positioning groove 203 can achieve a good positioning effect and reduce the product size at the same time.

[0043] Preferably, a first rectangular profiling opening 108 is provided at one end of the spring body 10 and a second arc-shaped profiling opening 109 is provided at the other end;

[0044] The first profiling opening 108 is passed through the signal jack 5 of the sleeve socket 01, and the second profiling opening 109 is passed through the electrode jack 6 of the sleeve socket 01; the beneficial effect is that the shape and size of the reed fits the size and spatial layout of the connector and can adapt to various structures.

[0045] Vertical legs 102 are arranged at the four corner edges and the middle of one long side of the spring body 10. The beneficial effect is that the arrangement ensures good connection strength.

[0046] Preferably, three parallel and parallel spring teeth 101 are evenly distributed on the two short sides of the spring body 10, and a radial spring tooth 101 is provided on the middle edge of the second contoured opening 109;

[0047] A rectangular first lower groove 205 is disposed between the two short sides of the first positioning groove 203. The first lower groove 205 is directly opposite to the three spring teeth 101.

[0048] The arc edge of the first positioning groove 203 forms two radial lower grooves 204. The beneficial effect is: ensuring uniform elastic distribution.

[0049] Preferably, the fixing member 3 is riveted or threadedly connected to the fixing hole 202, and the fixing member 3 is a rivet or a cylindrical head threaded member. The beneficial effect is that the structure is convenient to connect and has strong connection firmness.

[0050] Preferably, the fixing member 3 includes a cylindrical upper cap end and a lower column end, the upper step hole of the first stepped through hole 103 and the upper cap end are matched with a small gap, and the lower column end passes through the upper step hole of the first stepped through hole 103 to be threaded or riveted to the fixing hole 202.

[0051] Preferably, the grounding spring 1 is made of beryllium copper alloy, which has the following beneficial effects: the material is beryllium copper alloy, which has high strength, long life, good wear resistance and fatigue resistance.

[0052] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A power-changing connector with end face contact and grounding, characterized in that: It comprises: a grounding spring (1), a socket (01), a plug (02) and a plurality of fixing parts (3); The grounding spring (1) comprises a sheet-shaped spring body (10), the outer edge of the spring body (10) is provided with a plurality of spring teeth (101), and the lower surface of the spring body (10) is provided with a plurality of vertical feet (102); The floating seat (2) of the socket (01) comprises a plug-in slot (20) with an open upper end, a plurality of receiving slots (201) are provided on the lower wall of the plug-in slot (20), a fixing hole (202) is provided on the lower wall of the receiving slot (201), the grounding spring (1) is connected to the lower slot wall of the plug-in slot (20), the vertical foot (102) enters the receiving slot (201), and the fixing member (3) enters the first stepped through hole (103) in the vertical foot (102) and the lower end is connected to the fixing hole (202); The plug (02) is inserted into the socket (01), and the lower end surface of the plug (02) presses against the spring teeth (101) to deform until it contacts the upper surface of the spring body (10), thereby forming an elastic end surface contact ground.

2. A power-changing connector with end face contact and grounding according to claim 1, characterized in that: The spring teeth (101) comprise a cantilever folding plate (104) inclined upward at a small angle and an elastic foot (105) with a horizontal end, and gaps (107) are provided between adjacent spring teeth (101).

3. A power-changing connector with end face contact and grounding according to claim 2, characterized in that: The elastic foot (105) is also provided with a softening arc (106).

4. A power-changing connector with end face contact and grounding according to claim 2, characterized in that: The spring tooth (101) does not exceed the edge of the spring body (10), and a notch (107) is provided between the spring tooth (101) and the spring body (10).

5. A power-changing connector with end-face contact and grounding according to any one of claims 1 to 4, characterized in that: A plurality of lower grooves (204) are formed on the lower groove wall of the plug-in groove (20), and the lower grooves (204) are located directly below the spring teeth (101).

6. A power-changing connector with end face contact and grounding according to claim 1, characterized in that: A first positioning groove (203) is provided on the lower groove wall of the plug-in groove (20), and the first positioning groove (203) has the same shape and contour as the spring body (10).

7. A power-changing connector with end face contact and grounding according to claim 6, characterized in that: A rectangular first profiling opening (108) is provided at one end of the spring body (10) and an arc-shaped second profiling opening (109) is provided at the other end; the vertical feet (102) are provided at the four corner edges and in the middle of a long side of the spring body (10).

8. A power-changing connector with end face contact and grounding according to claim 7, characterized in that: The two short sides of the spring body (10) are evenly distributed with three parallel and side-by-side spring teeth (101), and the middle edge of the second contoured opening (109) is respectively provided with a radial spring tooth (101).

9. A power-changing connector with end-face contact and grounding according to claim 1, characterized in that: The fixing member (3) is a rivet or a cylindrical head threaded member, and the fixing member (3) is riveted or threadedly connected to the fixing hole (202).

10. A power-changing connector with end face contact and grounding according to claim 1, characterized in that: The grounding spring (1) is made of beryllium copper alloy.

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