A safety latch for electrical connector connection

Abstract

The present invention discloses a safety lock for connecting an electrical connector, comprising a pressing plate, a pressing protrusion, and a side ear. The pressing protrusion is integrally formed on the upper end surface of the pressing plate, and the side ears are provided on both the front and rear sides of the middle position of the lower end surface of the pressing plate. A rotating shaft is rotatably mounted on the side ear, and a mounting post is provided on one side of the side ear located at the lower end surface of the pressing plate. A spring is provided on the outer side of the mounting post. An upper latching tooth is provided on the side of the side ear away from the mounting post, and a connecting body is provided below the upper latching tooth. A lower latching tooth is provided on the connecting body. The invention is characterized in that it also includes a locking mechanism for fixing and opening the pressing plate. The present invention has a simple structure, a reasonable design, and a low production cost, greatly improving the safety performance of the lock and avoiding the situation of accidental loosening due to pressing.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a safety lock for connecting electrical connectors. Background Art

[0002] The battery swap connector is an important component of the quick-swap battery system. It is a special connector used to achieve rapid electrical connection and separation between the vehicle and the quick-swap battery system. It is mainly composed of a quick-swap plug, a quick-swap socket and related cables.

[0003] A snap-fit connection is a mechanism used to insert or lock one part into another. It's commonly used to connect plastic parts, often made of flexible plastic. The key advantage of snap-fit connections is their ease of installation and removal, requiring no tools. Snap-fit technology is now widely used in automotive interior components.

[0004] A lock needs to be installed on the battery swap connector for connection and fixation, but the traditional lock connection is too simple and less safe, and it is easy to be loosened by accident. For the connector, it will cause safety accidents and affect the normal use of the connector. Summary of the Invention

[0005] The purpose of the present invention is to provide a safety lock for connecting electrical connectors in order to solve the above problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A safety lock for connecting an electrical connector, comprising a pressing plate, a pressing protrusion, and a side ear, wherein the pressing protrusion is integrally formed on the upper end surface of the pressing plate, and the side ears are provided on both the front and rear sides of the middle position of the lower end surface of the pressing plate, a rotating shaft is rotatably installed on the side ear, a mounting post is provided on one side of the side ear located at the lower end surface of the pressing plate, a spring is provided on the outside of the mounting post, an upper latching tooth is provided on the side of the side ear away from the mounting post, a connecting body is provided below the upper latching tooth, and a lower latching tooth is provided on the connecting body, characterized in that it also includes a locking mechanism for fixing and opening the pressing plate.

[0008] As a further solution of the present invention, the locking mechanism includes a shell, a limit assembly, and a support block. The limit assembly is installed on the inner side of the shell, and the support block is provided on one side of the limit assembly. A pulling hole is provided on the side of the shell away from the support block, and a plug-in lock piece is slidably installed in the pulling hole. A locking boss is integrally formed at the front end of the plug-in lock piece, a locking protrusion is provided on the side of the plug-in lock piece, and an arc-shaped blocking surface is provided on the front side of the locking protrusion. A blocking block is provided on the lower end face of the plug-in lock piece away from the locking protrusion, and a blocking groove is provided at a position corresponding to the blocking block at the bottom of the inner side surface of the shell.

[0009] As a further solution of the present invention, the locking mechanism includes a shell, a limit assembly, and a support block. The limit assembly is installed on the inner side of the shell, and the support block is provided on one side of the limit assembly. A pull-out hole is provided on the front and back side of the shell away from the support block. A plug-in lock piece is slidably installed in the pull-out hole. A locking boss is integrally formed at the front end of the plug-in lock piece, a locking protrusion is provided on the side of the plug-in lock piece, an arc-shaped blocking surface is provided on the front side of the blocking protrusion, and a fixed block is provided on the rear side of the blocking protrusion.

[0010] As a further solution of the present invention, the limiting assembly includes a positioning ring, a No. 1 positioning groove, and a No. 2 positioning groove. The No. 1 positioning groove is provided on the positioning ring, the No. 2 positioning groove is provided on the rear side of the No. 1 positioning groove, and a clamping groove is provided on the rear side of the No. 2 positioning groove. The positioning ring is a hollow structure, and the spring is placed on the inner side of the positioning ring.

[0011] As a further solution of the present invention, the material of the plug-in lock piece is elastic engineering plastic, such as nylon, and the distance between the plug-in lock piece and the positioning ring is 0.05 to 0.1 cm.

[0012] As a further solution of the present invention, the housing is rectangular, and the front and rear corners on the side close to the plug-in lock piece are both configured to be arc-shaped.

[0013] As a further solution of the present invention, a side of the housing close to the plug-in lock piece is semicircular.

[0014] As a further solution of the present invention, when the plug-in lock piece is not pulled out, the upper end surface of the locking boss contacts the lower end surface of the pressing plate.

[0015] As a further solution of the present invention, the positioning ring is a U-shaped structure, the No. 1 positioning groove and the No. 2 positioning groove are both arranged on the plane at the top of the U-shaped structure, the card slot is opened at the end of the plane, and the front end of the plane is set to an arc shape.

[0016] As a further solution of the present invention, a circular mounting hole that passes through the shell from front to back is opened on the side of the shell away from the pulling hole, the rotating shaft is placed on the inner side of the shell, and the front and rear ends of the rotating shaft are respectively rotatably mounted in the circular mounting holes on the shell.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The upper end surface of the locking boss contacts the lower end surface of the pressing plate. The pressing plate is located on the side of the pressing boss and cannot be pressed down, so the spring cannot be compressed, the upper locking tooth will not leave the lower locking tooth, and the connecting body and the shell will not be separated. When the pressing plate needs to be opened, the locking boss is pulled out to the front side, and the plug-in lock plate and the locking boss are elastic. The locking boss will be stuck in the No. 1 positioning groove, and the locking boss is placed on the outside of the shell. The lower end surface of the pressing plate is not bound and can be pressed down, which greatly increases the safety performance of the lock and avoids the situation of accidental loosening. At the same time, it can be made into different sizes to suit different sizes of battery replacement connectors, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 is a perspective view of embodiment 1 of a safety lock for connecting an electrical connector according to the present invention;

[0021] Figure 2 This is a front view of a first embodiment of a safety lock for connecting an electrical connector according to the present invention;

[0022] Figure 3 1 is a schematic structural diagram of a housing of a safety lock for connecting an electrical connector according to embodiment 1 of the present invention;

[0023] Figure 4 This is a schematic structural diagram of a positioning ring of a safety lock buckle for connecting an electrical connector according to embodiment 1 of the present invention;

[0024] Figure 5 This is a structural schematic diagram of a plug-in lock piece of a safety lock buckle for connecting an electrical connector according to embodiment 1 of the present invention;

[0025] Figure 6 1 is a schematic structural diagram of a pressing plate of a safety lock for connecting an electrical connector according to embodiment 1 of the present invention;

[0026] Figure 7 is a perspective view of a second embodiment of a safety lock for connecting an electrical connector according to the present invention;

[0027] Figure 8 It is a schematic structural diagram of the shell of Example 2 of a safety lock for connecting an electrical connector according to the present invention.

[0028] The following are the descriptions of the reference numerals:

[0029] 101. Housing; 102. Positioning ring; 103. Support block; 104. Pull-out hole; 105. Insert and remove locking piece; 106. Positioning boss; 107. Positioning convex block; 108. Arc-shaped blocking surface; 109. Blocking block; 110. Blocking groove; 111. Positioning groove No. 1; 112. Positioning groove No. 2; 113. Slot; 114. Fixed block; 201. Pressing plate; 202. Pressing protrusion; 203. Side ear; 204. Rotating shaft; 205. Mounting column; 206. Spring; 207. Upper locking tooth; 208. Connecting body; 209. Lower locking tooth. DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] Example 1

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the present invention provides a technical solution: a safety lock for connecting an electrical connector, comprising a pressing plate 201, a pressing protrusion 202, and a side ear 203. The upper end surface of the pressing plate 201 is integrally formed with a pressing protrusion 202, and side ears 203 are provided on both the front and rear sides of the middle position of the lower end surface of the pressing plate 201. A rotating shaft 204 is rotatably installed on the side ear 203, and a mounting post 205 is provided on one side of the side ear 203 at the lower end surface of the pressing plate 201. A spring 206 is provided on the outside of the mounting post 205, and an upper latching tooth 207 is provided on the side of the side ear 203 away from the mounting post 205. A connecting body 208 is provided below the upper latching tooth 207, and a lower latching tooth 209 is provided on the connecting body 208. It is characterized in that it also includes a locking mechanism for fixing and opening the pressing plate 201.

[0035] On the basis of the above embodiment: the locking mechanism includes a shell 101, a limit assembly, and a support block 103. The limit assembly is installed on the inner side of the shell 101, and a support block 103 is provided on one side of the limit assembly. A pull-out hole 104 is provided on the side of the shell 101 away from the support block 103. A plug-in lock piece 105 is slidably installed in the pull-out hole 104. A locking boss 106 is integrally formed at the front end of the plug-in lock piece 105, and a locking boss 107 is provided on the side of the plug-in lock piece 105. The front side of the protrusion 107 is provided with an arc-shaped blocking surface 108, the lower end surface of the plug-in lock piece 105 is provided with a blocking block 109 at one end away from the locking boss 106, and a blocking groove 110 is provided at the bottom of the inner side of the shell 101 corresponding to the blocking block 109; the limiting component includes a positioning ring 102, a No. 1 positioning groove 111, and a No. 2 positioning groove 112. The positioning ring 102 is provided with a No. 1 positioning groove 111, and a No. 2 positioning groove 112 is provided on the rear side of the No. 1 positioning groove 111. 12 is provided with a card slot 113 on the rear side, the positioning ring 102 is a hollow structure, and the spring 206 is placed on the inner side of the positioning ring 102; the material of the plug-in lock piece 105 is elastic engineering plastic, such as nylon, etc., and the distance between the plug-in lock piece 105 and the positioning ring 102 is 0.05 to 0.1 cm; the housing 101 is rectangular, and the front and rear corners near the plug-in lock piece 105 are both set to arc shape; when the plug-in lock piece 105 is not pulled out, the upper end surface of the locking boss 106 It contacts the lower end surface of the pressing plate 201; the positioning ring 102 is a U-shaped structure, and the No. 1 positioning groove 111 and the No. 2 positioning groove 112 are both arranged on the plane at the top of the U-shaped structure, the card slot 113 is opened at the end of the plane, and the front end of the plane is set to an arc shape; a circular mounting hole that passes through the front and back is opened on the side of the shell 101 away from the pulling hole 104, the rotating shaft 204 is placed on the inner side of the shell 101, and the front and rear ends of the rotating shaft 204 are respectively rotatably installed in the circular mounting holes on the shell 101.

[0036] Working principle: In the working state, the connecting body 208 is connected to the shell 101, and the lower latch tooth 209 is engaged with the upper latch tooth 207. At this time, the upper end surface of the positioning boss 106 contacts the lower end surface of the pressing plate 201, and the positioning protrusion 107 is stuck in the second positioning groove 112. The pressing plate 201 is located on the side of the pressing protrusion 202 and cannot be pressed down, so the spring 206 cannot be compressed, the upper latch tooth 207 will not leave the lower latch tooth 209, and the connecting body 208 and the shell 101 will not be separated, ensuring the safety of the connection. When the pressing plate 201 needs to be opened, the positioning boss 106 is pulled out to the front side, and the plug-in lock piece 105 and the positioning protrusion 107 are elastic, and the positioning The protrusion 107 will be stuck in the No. 1 positioning groove 111, and the positioning boss 106 will be placed on the outside of the shell 101. The lower end surface of the pressing plate 201 is no longer constrained and can be pressed down. The upper locking tooth 207 rises, and the connecting body 208 is separated from the shell 101. The blocking block 109 will be stuck in the blocking groove 110, which can prevent the plug-in lock plate 105 from being pulled out to the front side. Similarly, when the plug-in lock plate 105 is pushed inward, the arc-shaped blocking surface 108 will be stuck on the arc-shaped surface on the front side of the positioning ring 102, preventing the plug-in lock plate 105 from being pushed over, so that it can be accurately positioned. The support block 103 supports the pressing plate 201, balancing it with the elastic force of the spring 206.

[0037] Example 2

[0038] like Figure 7 、 Figure 8 As shown, the difference between Example 2 and Example 1 is that the locking mechanism includes a shell 101, a limiting component, and a support block 103. The limiting component is installed on the inner side of the shell 101, and the support block 103 is provided on one side of the limiting component. A pull-out hole 104 is opened on the side of the shell 101 away from the support block 103, and a plug-in lock piece 105 is slidably installed in the pull-out hole 104. The front end of the plug-in lock piece 105 is integrally formed with a locking boss 106, and a locking protrusion 107 is provided on the side of the plug-in lock piece 105. The front side of the locking protrusion 107 is provided with an arc-shaped blocking surface 108, and the rear side of the locking protrusion 107 is provided with a fixed stopper 114; the side of the shell 101 close to the plug-in lock piece 105 is semicircular.

[0039] The blocking block 109 is stuck in the blocking groove 110 to prevent the plug-in lock piece 105 from being pulled out to the front side. The fixed blocking block 114 is replaced and stuck in the slot 113 to prevent the plug-in lock piece 105 from being pulled out to the front side. At the same time, the shape of 101 is changed from a rectangle to a semicircle on one side.

[0040] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A safety lock for connecting an electrical connector, comprising a pressing plate (201), a pressing protrusion (202), and a side ear (203), wherein the pressing protrusion (202) is integrally formed on the upper end surface of the pressing plate (201), the side ears (203) are provided on both the front and rear sides of the middle position of the lower end surface of the pressing plate (201), a rotating shaft (204) is rotatably installed on the side ear (203), a mounting post (205) is provided on one side of the side ear (203) located on the lower end surface of the pressing plate (201), a spring (206) is provided on the outer side of the mounting post (205), an upper latching tooth (207) is provided on the side of the side ear (203) away from the mounting post (205), a connecting body (208) is provided below the upper latching tooth (207), and a lower latching tooth (209) is provided on the connecting body (208), characterized in that: The invention also includes a locking mechanism for fixing and opening the pressing plate (201), the locking mechanism including a housing (101), a limiting assembly, and a support block (103). The limiting assembly is installed on the inner side of the housing (101), and the support block (103) is provided on one side of the limiting assembly. A pull-out hole (104) is provided on the side of the housing (101) away from the support block (103). A plug-in lock piece (105) is slidably installed in the pull-out hole (104). ), a locking boss (106) is integrally formed at the front end of the plug-in lock piece (105), a locking convex block (107) is provided on the side of the plug-in lock piece (105), an arc-shaped blocking surface (108) is provided on the front side of the locking convex block (107), a blocking block (109) is provided at the end of the lower end surface of the plug-in lock piece (105) away from the locking convex block (106), and a blocking groove (110) is provided at a position corresponding to the blocking block (109) on the bottom of the inner side surface of the housing (101).

2. The safety lock for connecting an electrical connector according to claim 1, characterized in that: The locking mechanism comprises a housing (101), a limiting assembly, and a support block (103); the limiting assembly is installed on the inner side of the housing (101); the support block (103) is provided on one side of the limiting assembly; a pull-out hole (104) is provided on the side of the housing (101) away from the support block (103); a plug-in lock piece (105) is slidably installed in the pull-out hole (104); a locking boss (106) is integrally formed at the front end of the plug-in lock piece (105); a locking convex block (107) is provided on the side of the plug-in lock piece (105); an arc-shaped blocking surface (108) is provided on the front side of the locking convex block (107); and a fixed blocking block (114) is provided on the rear side of the locking convex block (107).

3. The safety lock for connecting an electrical connector according to claim 2, characterized in that: The limiting assembly comprises a positioning ring (102), a No. 1 positioning groove (111), and a No. 2 positioning groove (112); the No. 1 positioning groove (111) is provided on the positioning ring (102); the No. 2 positioning groove (112) is provided on the rear side of the No. 1 positioning groove (111); the No. 2 positioning groove (112) is provided on the rear side of the No. 2 positioning groove (112); the No. 2 positioning groove (112) is provided on the rear side of the No. 2 positioning groove (112); the positioning ring (102) is a hollow structure, and the spring (206) is placed on the inner side of the positioning ring (102).

4. The safety lock for connecting an electrical connector according to claim 3, characterized in that: The material of the plug-in lock piece (105) is elastic engineering plastic, and the distance between the plug-in lock piece (105) and the positioning ring (102) is 0.05 to 0.1 cm.

5. The safety lock for connecting an electrical connector according to claim 1, characterized in that: The housing (101) is rectangular, and the front and rear corners on the side close to the plug-in lock piece (105) are both arranged in an arc shape.

6. The safety lock for connecting an electrical connector according to claim 2, characterized in that: One side of the housing (101) close to the plug-in lock piece (105) is semicircular.

7. The safety lock for connecting an electrical connector according to claim 2, characterized in that: When the plug-in lock piece (105) is not pulled out, the upper end surface of the locking boss (106) contacts the lower end surface of the pressing plate (201).

8. The safety lock for connecting an electrical connector according to claim 3, characterized in that: The positioning ring (102) is a U-shaped structure, the first positioning groove (111) and the second positioning groove (112) are both arranged on a plane at the top of the U-shaped structure, the clamping groove (113) is opened at the end of the plane, and the front end of the plane is arranged to be arc-shaped.

9. The safety lock for connecting an electrical connector according to claim 2, characterized in that: A circular mounting hole extending from front to back is provided on a side of the housing (101) away from the pull-out hole (104); the rotating shaft (204) is placed inside the housing (101), and the front and rear ends of the rotating shaft (204) are rotatably mounted in the circular mounting holes on the housing (101).

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