Waterproof connector for new energy automobile

Abstract

The utility model relates to the technical field of connectors, in particular to a waterproof connector for a new energy automobile, which comprises a connector female head, a connector male head, a locking column, a locking groove, a compression spring, a positioning groove, a limiting groove, a positioning rod, a limiting bulge, a tail stop block, a holding rod, a guide strip and the like. When the connector is pulled out, an operator needs to press the holding rod downwards to complete the first unlocking, then pull the holding rod upwards to complete the second unlocking, and then complete unlocking can be achieved, so that when the connector is pulled out and inserted, the inserting process is convenient and rapid, and the pulling out process needs to spend a certain time. Therefore, the technical effect that an arc discharge phenomenon is found when the separating connector is pulled out is avoided, and the safety of pulling and plugging of the connector is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a waterproof connector for new energy vehicles. Background Art

[0002] The automotive waterproof connector is an electrical connector specially used for connecting automotive electronic equipment. Its main function is to prevent the influence of moisture, humidity, pollutants and other external elements on the electrical connection in the working environment of the vehicle, bridge the blocked or isolated circuits together, and enable wires and cables to maintain good connection and communication in the vehicle vibration, temperature change and humid environment.

[0003] The power source of new energy vehicles usually comes from the high-voltage battery at the bottom of the vehicle body. Therefore, the waterproof connector of new energy vehicles needs to be able to withstand higher voltage and current than traditional fuel vehicles. When unlocking under power, it is also necessary to have a high-voltage interlocking function, which can first disconnect the low-voltage signal circuit and then disconnect the high-voltage circuit to avoid arcing. The voltage of traditional fuel vehicles in the existing technology is usually not high. Therefore, it is only necessary to ensure waterproof sealing and stable connection to facilitate plugging and unplugging. There is no relevant design to avoid arcing. Therefore, it cannot be directly applied to new energy vehicles. If it is forcibly applied, the arcing phenomenon generated by the high-voltage circuit during plugging and unplugging may cause failure of the vehicle's high-voltage system, ablation of the connector, and even explosion or combustion and other serious consequences.

[0004] Therefore, in view of the above problems, a waterproof connector for new energy vehicles is proposed. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a waterproof connector for new energy vehicles, which solves the technical problem of ensuring the safety of the vehicle and vehicle users when the waterproof connector of the new energy vehicle is plugged in and out under power.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A waterproof connector for new energy vehicles, comprising:

[0010] A female connector, the female connector being connected to a cable of a circuit system in the vehicle;

[0011] A male connector, the male connector being connected to a cable of another circuit system in the car, and the male connector being detachably connected to the female connector;

[0012] Also includes:

[0013] A locking post, the locking post being slidably connected in a locking groove formed at one end of an outer side wall of the female connector;

[0014] A compression spring, wherein the bottom of the locking column is connected to the bottom of the locking groove through the compression spring;

[0015] A positioning groove is provided through the outer side wall of the connector male head, and a transition fit is formed between the positioning groove and the locking column.

[0016] Preferably, under the action of the compression spring, the maximum height of the locking column extending out of the locking groove is greater than the distance from the inner side of the outer wall of the male connector to the outer side of the outer wall of the female connector.

[0017] Preferably, a limiting groove whose length is less than the thickness of the side wall is opened on the inner side wall of the positioning groove, a positioning rod with the same diameter as the locking column and the same length as the positioning groove is slidably connected in the positioning groove, and a limiting protrusion slidably connected in the limiting groove is fixedly connected to the side wall of the positioning rod.

[0018] Preferably, a final stopper is fixedly connected to the outer wall of the female connector close to the male connector, a through groove for the final stopper to pass through is opened on the inner side of the outer wall of the male connector, and a holding rod with a diameter smaller than the positioning rod is fixedly connected to the top of the positioning rod.

[0019] Preferably, the upper end of the locking column and the outer wall of the connector male head in contact therewith are both rounded.

[0020] Preferably, guide bars are fixedly connected to both side walls of the female connector, and the number of guide bars fixed on both sides is different; and guide grooves matching the shape and number of the guide bars are formed on the corresponding side walls of the male connector.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the utility model provides a waterproof connector for new energy vehicles, which has the following beneficial effects:

[0023] During the entire plugging and unplugging process, when plugging, the operator only needs to pull the holding rod to achieve complete locking at one time, but when unplugging, the operator needs to first press down the holding rod to complete the first unlocking, and then pull up the holding rod to complete the second unlocking before achieving complete unlocking. When plugging and unplugging the connector, the plugging process is convenient and fast, and the unplugging process has to take a certain amount of time, thereby avoiding the technical effect of the arcing phenomenon found when unplugging the separated connector, ensuring the safety of the connector plugging and unplugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of the utility model when it is not connected;

[0026] Figure 2 It is a sectional view of the three-dimensional structure of the utility model during the connection process;

[0027] Figure 3 for Figure 2 A in the enlarged view;

[0028] Figure 4 It is a sectional view of the three-dimensional structure of the utility model after the connection is completed.

[0029] Description of reference numerals:

[0030] 1. Female connector; 2. Male connector; 3. Locking column; 4. Locking groove; 5. Compression spring; 6. Positioning groove; 7. Limiting groove; 8. Positioning rod; 9. Limiting protrusion; 10. Last stopper; 11. Holding rod; 12. Guide strip; 13. Guide groove. DETAILED DESCRIPTION

[0031] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0032] Combination Figure 1-4 As shown in FIG. 1 , an embodiment of the utility model is shown. The utility model provides a waterproof connector for new energy vehicles, including:

[0033] A female connector, the female connector being connected to a cable of a circuit system in the vehicle;

[0034] A male connector, the male connector being connected to a cable of another circuit system in the car, and the male connector being detachably connected to the female connector;

[0035] Also includes:

[0036] A locking post, the locking post being slidably connected in a locking groove formed at one end of an outer side wall of the female connector;

[0037] A compression spring, wherein the bottom of the locking column is connected to the bottom of the locking groove through the compression spring;

[0038] A positioning groove is provided through the outer side wall of the connector male head, and a transition fit is formed between the positioning groove and the locking column.

[0039] As an implementation mode of the utility model, under the action of the compression spring, the maximum height of the locking column extending out of the locking groove is greater than the distance from the inner side of the outer wall of the male connector to the outer side of the outer wall of the female connector.

[0040] As an embodiment of the utility model, a limiting groove whose length is less than the thickness of the side wall is opened on the inner side wall of the positioning groove, a positioning rod with a diameter the same as that of the locking column and a length the same as that of the positioning groove is slidably connected in the positioning groove, and a limiting protrusion slidably connected in the limiting groove is fixedly connected to the side wall of the positioning rod.

[0041] As an embodiment of the utility model, a final stopper is fixedly connected to the outer wall of the female connector close to the male connector, a passing groove for the final stopper to pass through is opened on the inner side of the outer wall of the male connector, and a holding rod with a diameter smaller than the positioning rod is fixedly connected to the top of the positioning rod.

[0042] As an implementation mode of the utility model, the upper end of the locking column and the outer wall of the connector male head in contact therewith are both rounded.

[0043] When connecting different circuit systems in a new energy vehicle and plugging the female connectors connected to the cables of different circuit systems into the male connectors, the operator first needs to hold the holding rod fixedly connected to the positioning rod above the male connector, pull the holding rod outward to drive the positioning rod slidably connected in the positioning groove to slide upward. Since the limiting protrusion fixedly connected to the side wall of the positioning groove is limited by the limiting groove in the male connector, when the limiting protrusion is pulled by the operator and slides outward in the limiting groove to the top groove wall of the limiting groove, the operator will no longer be able to continue pulling outward, and the positioning rod will be completely retracted into the positioning groove. The locking post that is slidably connected to the locking groove is inserted into the positioning groove under the elastic force of the compression spring connected thereto to complete the snap connection, indicating that the connection is completed. The holding rod can be released to allow the positioning rod to move down along the positioning groove and contact the locking post that extends into the positioning groove, and the two are located in the positioning groove together under the elastic force of the compression spring. Since the upper end of the locking column and the outer wall of the connector male head in contact with it are rounded, when the connector male head slides inward along the outer wall of the connector female head and contacts the locking column extending out of the locking groove, the locking column and the rounded portion of the corresponding position of the connector male head are contacted and squeezed, and the locking column can be pressed down into the lower end of the connector male head, thereby avoiding the blocking effect of the locking column on the connection process when continuing to push inward, thereby improving the connection efficiency between the connector female head and the connector male head; when pulling out the connector male head, since the lower end of the positioning groove has not been rounded, it cannot be directly unlocked by horizontal pushing, but the operator needs to push downward first The gripping rod is pressed to overcome the elastic force of the compression spring, and the locking column is pushed out of the positioning groove through the positioning rod, thereby completing the first unlocking. Then the operator can continue to pull the male connector outward until the positioning rod in the downward pressing state contacts the final stopper fixed to the end of the outer wall of the female connector, and is blocked by the final stopper, so the extraction process has to be suspended, and the downward pressing gripping rod is changed to pulling the gripping rod upward, so that the bottom of the positioning rod completely enters the positioning groove and no longer contacts the final stopper. At this time, continue to pull the male connector outward to complete the second unlocking, that is, the complete separation of the male connector and the female connector is also completed;During the entire plugging and unplugging process, when plugging, the operator only needs to pull the gripping rod to achieve full locking at one time, but when unplugging, the operator needs to first press down the gripping rod to complete the first unlocking, and then pull up the gripping rod to complete the second unlocking before achieving full unlocking. When plugging and unplugging the connector, the plugging process is convenient and fast, and the unplugging process has to take a certain amount of time, thereby avoiding the technical effect of the arc phenomenon found when unplugging the separated connector, ensuring the safety of the connector plugging and unplugging. ;

[0044] As an implementation mode of the utility model, guide strips are fixedly connected to the two side walls of the female connector, and the number of guide strips fixed on both sides is different; the corresponding side walls of the male connector are provided with guide grooves matching the shape and number of the guide strips.

[0045] During operation, since the female connector and the male connector need to be connected on the same side when the locking column side of the female connector is installed and the positioning rod side of the male connector is installed, the above-mentioned technical effect can be ensured to be achieved. In order to facilitate the operator's identification and lower the operating threshold of the present application, the present application also adds a fool-proof design in which different numbers of guide strips are installed on the two side walls of the female connector, and the corresponding side walls of the male connector are also provided with guide grooves that match the shape and number of the guide strips. Taking the attached figure as an example, one guide strip is installed on one side of the female connector and two guide strips are installed on the other side. When the operator connects the male connector and the female connector, the guide strip and the corresponding guide groove must be connected to each other to successfully complete the docking, thereby avoiding connection failure caused by the operator's wrong docking angle, and further avoiding the problem of parts damage caused by the wrong docking method, thereby improving the durability of the present application.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof connector for new energy vehicles, comprising: A female connector (1), the female connector (1) being connected to a cable of a circuit system in a car; A male connector (2), the male connector (2) being connected to a cable of another circuit system in the vehicle, and the male connector (2) and the female connector (1) being detachably connected; It is characterized by further comprising: A locking column (3), wherein the locking column (3) is slidably connected to a locking groove (4) provided at one end of an outer side wall of the connector female head (1); A compression spring (5), wherein the bottom of the locking column (3) is connected to the bottom of the locking groove (4) via the compression spring (5); A positioning groove (6), the positioning groove (6) is formed through the outer wall of the connector male head (2), and a transition fit is formed between the positioning groove (6) and the locking column (3).

2. A waterproof connector for new energy vehicles according to claim 1, characterized in that: Under the action of the compression spring (5), the maximum height of the locking column (3) extending out of the locking groove (4) is greater than the distance from the inner side of the outer wall of the connector male head (2) to the outer side of the outer wall of the connector female head (1).

3. A waterproof connector for new energy vehicles according to claim 2, characterized in that: The inner side wall of the positioning groove (6) is provided with a limiting groove (7) whose length is less than the thickness of the side wall; a positioning rod (8) having the same diameter as the locking column (3) and the same length as the positioning groove (6) is slidably connected in the positioning groove (6); and a limiting protrusion (9) slidably connected in the limiting groove (7) is fixedly connected to the side wall of the positioning rod (8).

4. A waterproof connector for new energy vehicles according to claim 3, characterized in that: A final stopper (10) is fixedly connected to the outer wall of the female connector (1) on one side close to the male connector (2), a through slot for the final stopper (10) to pass through is provided on the inner side of the outer wall of the male connector (2), and a holding rod (11) having a smaller diameter than the positioning rod (8) is fixedly connected to the top of the positioning rod (8).

5. A waterproof connector for new energy vehicles according to claim 2, characterized in that: The upper end of the locking column (3) and the outer wall of the connector male head (2) in contact therewith are both rounded.

6. A waterproof connector for new energy vehicles according to claim 1, characterized in that: The two side walls of the female connector (1) are fixedly connected with guide strips (12), and the number of guide strips (12) fixed on the two sides is different; the corresponding side walls of the male connector (2) are provided with guide grooves (13) matching the shape and number of the guide strips (12).

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