Connector

Abstract

The utility model discloses a connector, which comprises a socket shell, the side wall of the insertion end of the socket shell is provided with a plurality of through hole groups, each through hole group comprises a plurality of through holes, the through holes are used for accommodating steel balls, and the steel balls are movably arranged in the through holes, so that the steel balls extend into the socket shell or protrude out of the socket shell; the push-and-pull ring is slidably arranged on the periphery of the insertion end of the socket shell in a sleeving mode, and the inner wall of the push-and-pull ring is provided with a plurality of annular grooves corresponding to the through hole sets in position, so that the sliding push-and-pull ring has at least one position to enable the steel balls to protrude out of the socket shell; the spring is arranged on the periphery of the socket shell in a sleeving mode and used for providing elastic force for the push-pull ring to slide in the axial direction of the socket shell so as to change the position of the annular groove and enable the annular groove and the steel ball to be staggered, and the steel ball stretches into the socket shell and is used for clamping the plug in the socket shell. The connector can be suitable for plugs of various structures at the same time, the replacement time of the socket is shortened, and the material cost and the processing cost of a product are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of connectors, and in particular to a connector. Background Art

[0002] The existing three-electric products (battery, electric drive, and electronic control) of automobiles are produced by different manufacturers, and there is no unified liquid cooling pipe structure for the three-electric products. The main cooling pipe interfaces on the market are MDC and SAE, but for manufacturers of test equipment for the three-electric products, different plug interfaces need to be equipped with different sockets. Every time a different plug needs to be tested, it is necessary to replace the dedicated socket, which is troublesome to use, wastes time, and increases the test cost. At the same time, the existing sockets are usually clamp-type, with large external dimensions, cannot be installed in a small space, and are costly.

[0003] Therefore, in response to the above technical problems, how to provide a connector with a wide range of applications, a simple structure, and reduced material and processing costs is a technical problem that technical personnel in this field need to solve. Utility Model Content

[0004] The purpose of this application is to provide a connector that can be used with plugs of various structures at the same time, thereby reducing the replacement time of sockets, reducing the appearance size of the product, facilitating installation in a small space, and reducing the material cost and processing cost of the product.

[0005] To achieve the above object, the present application provides a connector, comprising:

[0006] A socket housing, used for plugging and mating with a plug, wherein the side wall of the insertion end of the socket housing is provided with a plurality of through hole groups, each of which includes a plurality of through holes distributed along the circumference of the socket housing, and any of the through holes is used to accommodate a steel ball, and the steel ball is movably arranged in the through hole so that the steel ball extends into the socket housing or protrudes out of the socket housing;

[0007] A push-pull ring is slidably sleeved on the outer periphery of the insertion end of the socket housing, and the inner wall of the push-pull ring is provided with a plurality of annular grooves corresponding to the positions of the through hole groups, so that the sliding push-pull ring has at least one position so that the steel balls in each group of the through hole groups protrude out of the socket housing and retract into the annular grooves;

[0008] A spring is sleeved on the outer circumference of the socket shell, with two ends respectively abutting against the socket shell and the push-pull ring, and is used for providing the push-pull ring with elastic force for axial sliding along the socket shell to change the position of the annular groove and misalign the annular groove with the steel ball. The steel ball extends into the socket shell and is used for interference contact with the annular protrusion on the outer circumference of the plug, and clamping the plug in the socket shell.

[0009] Preferably, the plug includes an SAE structure plug and an MDC structure plug, and the outer circumference of the SAE structure plug and the MDC structure plug are both provided with the annular protrusion;

[0010] The number of the through hole groups is at least two, the steel balls in one through hole group are used to clamp the annular protrusion of the SAE structure plug, and the steel balls in the other through hole group are used to clamp the annular protrusion of the MDC structure plug.

[0011] Preferably, the number of the through hole groups is three, and the steel balls in the last through hole group are used to contact the outer wall of the plug to correct the posture of the plug in the socket housing.

[0012] Preferably, the groove wall of at least one side of the annular groove is an inclined surface, so that the push-pull ring can squeeze the steel ball into the socket housing through the inclined surface under the action of the spring.

[0013] Preferably, a retaining spring is provided at the outer periphery of the end of the insertion end of the socket housing, and the retaining spring is interference fit with the inclined surface of the outermost annular groove of the push-pull ring to limit the push-pull ring to slide only on the socket housing.

[0014] Preferably, the inner wall of the push-pull ring contacts and slides with the outer wall of the socket housing, so that the steel ball can be completely embedded in the through hole.

[0015] Preferably, a sealing groove is provided in the socket housing, an O-ring is embedded in the sealing groove, and the O-ring is interference fit with the outer wall of the plug inserted into the socket housing for sealing the two.

[0016] Preferably, an annular slope is provided on the inner wall of the socket housing to limit the insertion position of the plug.

[0017] Compared with the above background technology, the present application adjusts the position of the push-pull ring so that the steel ball in the through hole can extend into the socket shell or protrude out of the socket shell, thereby realizing the limited clamping of multiple plugs with different structures through multiple groups of through holes. In other words, when the annular protrusion structure or position of different plugs is different, the push-pull ring position is manually moved so that the annular groove on the push-pull ring corresponds to the through hole, and as the plug is continuously inserted, the annular protrusion will push part of the steel ball into the annular groove. After the steel ball is separated from the inside of the socket shell, the annular protrusion can pass through the steel ball until the plug is plugged in place. At this time, the push-pull ring is released, and under the action of the spring, the push-pull ring moves in the opposite direction and pushes the steel ball to reset, so that the steel ball enters the socket shell again. At this time, the steel ball can be in interference contact with the annular protrusion to form a limited clamping, so that the plug is clamped in the socket. Of course, different plugs can be connected through steel balls on different through-hole groups, making the connector more applicable. Compared with traditional plugs, the connector structure is relatively simple, which reduces the number of parts that need to be processed for the entire product, reduces the product's appearance size, facilitates installation in a small space, and reduces the product's material cost and processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0019] Figure 1 An exploded schematic diagram of a connector provided in an embodiment of the present application;

[0020] Figure 2 for Figure 1 Schematic diagram of the cross-section structure;

[0021] Figure 3 A schematic diagram of the SAE structure plug structure provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the MDC structure plug structure provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the matching structure of the SAE structure plug and the socket housing provided in the embodiment of the present application;

[0024] Figure 6 A schematic diagram of the matching structure of the MDC structure plug and the socket housing provided in the embodiment of the present application;

[0025] Figure 7 for Figure 5A partial enlarged schematic diagram is shown in the figure.

[0026] In the figure: 1, socket housing 11, through hole 12, sealing groove 13, annular slope 2, O-ring 3, steel ball 4, spring 5, push-pull ring 51, annular groove 6, retaining spring 7, SAE structure plug 8, MDC structure plug. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1 As shown, in this embodiment, a connector is provided, which includes a socket housing 1, a push-pull ring 5 and a spring 4. The socket housing 1 is used for plugging and matching with a plug. The side wall of the insertion end of the socket housing 1 is provided with multiple groups of through-hole groups, each of which includes multiple through-holes 11 distributed along the circumference of the socket housing 1. The through-holes 11 are used to accommodate steel balls 3, and the steel balls 3 can be movably arranged in the through-holes 11. It should be noted that the diameter of the steel balls 3 needs to be greater than the opening length of the through-holes 11, so that the steel balls 3 can extend into the socket housing 1 or protrude from the socket housing 1.

[0031] The push-pull ring 5 is slidably mounted on the outer periphery of the insertion end of the socket housing 1, and can at least cover a plurality of through-hole groups. The inner wall of the push-pull ring 5 is provided with a plurality of annular grooves corresponding to the positions of the through-hole groups. In other words, the distance between two adjacent annular grooves is the same as the distance between two adjacent through-hole groups, so that the sliding push-pull ring 5 has at least one position where the steel balls 3 in each through-hole group protrude out of the socket housing 1 and retract into the annular groove 51.

[0032] It should be noted that the two situations in which the steel ball 3 extends into the socket housing 1 or protrudes out of the socket housing 1 exist separately, and there are only two states of the steel ball 3 after sliding in the through hole 11, one is that it extends into the socket housing 1 and the other end does not protrude out of the socket housing 1; the other is that it protrudes out of the socket housing 1 and the other end does not extend out of the socket housing 1.

[0033] The spring 4 is set on the outer periphery of the socket housing 1, please refer to Figure 5 or Figure 6 , the two ends of the spring 4 are respectively against the socket housing 1 and the push-pull ring 5, thereby providing the push-pull ring 5 with an elastic force to slide axially along the socket housing 1. It should be noted that the push-pull ring 5 can slide axially on the socket housing 1 by relying on external force, thereby overcoming the elastic force and compressing the spring 4 until the annular groove 51 corresponds to the position of the through hole 11, at which time the steel ball 3 can be withdrawn into the annular groove 51. When the external force of the push-pull ring 5 is removed, the elastic force provided by the spring 4 will reset the socket housing 1, thereby misaligning the annular groove 51 and the steel ball 3. At this time, the steel ball 3 is squeezed by the side wall of the annular groove 51 and the inner wall of the push-pull ring 5, so that the steel ball 3 extends into the socket housing 1. At this time, the steel ball 3 can be in interference contact with the annular protrusion on the outer periphery of the plug, and the plug is clamped in the socket housing 1.

[0034] In summary of the above embodiments, the present application adjusts the position of the push-pull ring 5 so that the steel ball 3 in the through hole 11 can extend into the socket housing 1 or protrude out of the socket housing 1, thereby realizing the limited clamping of multiple plugs with different structures through multiple groups of through holes. In other words, when the annular protrusion structure or position of different plugs is different, the push-pull ring 5 is manually moved to make the annular groove 51 on the push-pull ring 5 correspond to the through hole 11, and as the plug is continuously inserted, the annular protrusion will push part of the steel ball 3 into the annular groove 51, and after the steel ball 3 is separated from the inside of the socket housing 1, the annular protrusion can pass through the steel ball 3 until the plug is plugged in place, at this time, the push-pull ring 5 is released, and under the action of the spring 4, the push-pull ring 5 moves in the opposite direction and pushes the steel ball 3 to reset, so that the steel ball 3 enters the socket housing 1 again, and at this time, the steel ball 3 can be in interference contact with the annular protrusion to form a limited clamping, so that the plug is clamped in the socket. Of course, for different plugs, they can be connected through the steel balls 3 on different through-hole groups, so that the connector has a wider range of applications. Compared with traditional plugs, the connector structure is relatively simple, which reduces the number of parts that need to be processed for the entire product, reduces the product's appearance size, facilitates installation in a small space, and reduces the product's material cost and processing cost.

[0035] Please refer to Figure 3 and Figure 4, respectively, are SAE structure plug 7 and MDC structure plug 8. The above-mentioned plugs include these two types of plugs. It can be seen that the positions and structures of the annular protrusions on the two plugs are different, but both have annular protrusions, so they can cooperate with the steel ball 3 of the present application to limit the positioning and fix the two plugs.

[0036] It should be noted that due to the different positions and structures of the two plugs, the number of through hole groups is at least two. The steel balls 3 in one through hole group are used to clamp the annular protrusion of the SAE structure plug 7, and the steel balls 3 in the other through hole group are used to clamp the annular protrusion of the MDC structure plug 8.

[0037] For further information, please refer to Figure 5 and Figure 6 The number of through hole groups in this application is set to three groups, and three groups are used as an example for introduction. Of course, the through hole groups include but are not limited to three groups, which can be set according to actual conditions, and will not be described in detail here.

[0038] In the present application, three groups of through-hole groups are arranged axially along the socket housing 1, wherein the steel balls 3 in two groups of through-hole groups are respectively used to clamp the annular protrusions on the SAE structure plug 7 and the MDC structure plug 8, while the steel balls 3 in the last group of through-hole groups are used to contact the outer wall of the plug to correct the posture of the plug in the socket housing 1.

[0039] On this basis, please refer to Figure 2 , Figure 5 or Figure 6 , the groove wall of at least one side of the annular groove 51 is an inclined surface, so that the push-pull ring 5 can smoothly squeeze the steel ball 3 into the socket housing 1 through the inclined surface under the action of the spring 4. When the SAE structure plug 7 is inserted into the socket housing 1, the push-pull ring 5 is first manually pushed to compress the spring 4 until the annular groove 51 on the push-pull ring 5 corresponds to the through hole group one by one. At this time, the SAE structure plug 7 is inserted, and the outermost steel ball 3 will be retreated to the annular groove 51 under the action of the annular protrusion, and due to the length limit of the SAE structure plug 7 or the position limit of the annular protrusion, the annular protrusion will stop after passing over the outermost steel ball 3. At this time, the push-pull ring 5 is released, and the push-pull ring 5 will be reset under the action of the spring 4, so that the steel ball 3 is pushed into the socket housing 1 by the inclined surface, so that the steel ball 3 and the annular protrusion are clamped to ensure the fixed position of the plug. The steel balls 3 in the other two through-hole groups will also be naturally pushed into the socket housing 1 and contact the outer wall of the SAE structure plug 7 to achieve the straightening and limiting effects and prevent the plug from shifting.

[0040] Similarly, please refer to Figure 6The annular protrusion of the MDC structure plug 8 is located at its end, so it is in a different position from the steel ball 3. When the MDC structure plug 8 is inserted into the socket housing 1, the push-pull ring 5 is first manually pushed to compress the spring 4 until the annular groove 51 on the push-pull ring 5 corresponds to the through hole group. At this time, the MDC structure plug 8 is inserted, so that the steel balls 3 in the three through hole groups are retreated to the annular groove 51 under the action of the annular protrusion. When the annular protrusion passes over the innermost steel ball 3, it will stop. At this time, the push-pull ring 5 is released, and the push-pull ring 5 will be reset under the action of the spring 4, so that the steel ball 3 is pushed into the socket housing 1 by the inclined surface, so that the steel ball 3 and the annular protrusion are clamped to ensure the fixed position of the plug. The steel balls 3 in the outermost and middle through hole groups will also be naturally pushed into the socket housing 1 and contact the outer wall of the MDC structure plug 8 to achieve the straightening and limiting functions to prevent the plug from shifting.

[0041] In addition, a retaining spring 6 is provided on the outer periphery of the end of the insertion end of the socket housing 1, see Figure 5 and Figure 6 The circlip 6 is interference fit with the inclined surface of the outermost annular groove 51 of the push-pull ring 5, so as to limit the push-pull ring 5 to slide only on the socket housing 1 to prevent it from falling off, and does not affect the cooperation between the outermost annular groove 51 and the steel ball 3. In other words, the outermost annular groove 51 can be interference fit with the circlip 6 on the one hand to limit the push-pull ring 5, and can cooperate with the steel ball 3 on the other hand to realize the steel ball 3 to retreat to the outermost annular groove 51.

[0042] In the present application, the inner wall of the push-pull ring 5 contacts and slides with the outer wall of the socket housing 1, so that the steel ball 3 can be completely embedded in the through hole 11, and the push-pull ring 5 can use its inner wall to completely push the steel ball 3 into the through hole 11 and extend into the socket housing 1.

[0043] At the same time, in order to ensure the sealing of the connection between the plug and the socket, a sealing groove 12 is provided in the socket housing 1, please refer to Figure 2 An O-ring 2 is embedded in the sealing groove 12, and the O-ring 2 is interference-fitted with the outer wall of the plug inserted into the socket housing 1 to seal the two.

[0044] Please refer to Figure 7 As mentioned above, when the SAE structure plug 7 is inserted into the socket housing 1, due to its length limitation or the position limitation of the annular protrusion, an annular slope 13 is provided on the inner wall of the socket housing 1, thereby limiting the insertion position of the SAE structure plug 7 and ensuring that it is inserted in place.

[0045] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0046] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A connector, characterized in that: include: A socket housing, used for plugging and mating with a plug, wherein the side wall of the insertion end of the socket housing is provided with a plurality of through hole groups, each of which includes a plurality of through holes distributed along the circumference of the socket housing, and any of the through holes is used to accommodate a steel ball, and the steel ball is movably arranged in the through hole so that the steel ball extends into the socket housing or protrudes out of the socket housing; A push-pull ring is slidably sleeved on the outer periphery of the insertion end of the socket housing, and the inner wall of the push-pull ring is provided with a plurality of annular grooves corresponding to the positions of the through hole groups, so that the sliding push-pull ring has at least one position so that the steel balls in each group of the through hole groups protrude out of the socket housing and retract into the annular grooves; A spring is sleeved on the outer circumference of the socket shell, with two ends respectively abutting against the socket shell and the push-pull ring, and is used for providing the push-pull ring with elastic force for axial sliding along the socket shell to change the position of the annular groove and misalign the annular groove with the steel ball. The steel ball extends into the socket shell and is used for interference contact with the annular protrusion on the outer circumference of the plug, and clamping the plug in the socket shell.

2. The connector according to claim 1, characterized in that: The plug includes an SAE structure plug and an MDC structure plug, and the outer circumference of the SAE structure plug and the MDC structure plug are both provided with the annular protrusion; The number of the through hole groups is at least two, the steel balls in one through hole group are used to clamp the annular protrusion of the SAE structure plug, and the steel balls in the other through hole group are used to clamp the annular protrusion of the MDC structure plug.

3. The connector according to claim 2, characterized in that: The number of the through hole groups is three, and the steel balls in the last through hole group are used to contact the outer wall of the plug to correct the posture of the plug in the socket housing.

4. The connector according to claim 1, characterized in that: The groove wall of at least one side of the annular groove is an inclined surface, so that the push-pull ring can squeeze the steel ball into the socket housing through the inclined surface under the action of the spring.

5. The connector according to claim 4, characterized in that: A retaining spring is provided at the outer periphery of the end of the insertion end of the socket housing, and the retaining spring is interference-fitted with the inclined surface of the annular groove at the outermost side of the push-pull ring to limit the push-pull ring to slide only on the socket housing.

6. The connector according to claim 5, characterized in that: The inner wall of the push-pull ring contacts and slides with the outer wall of the socket housing, so that the steel ball can be completely embedded in the through hole.

7. The connector according to any one of claims 1 to 6, characterized in that: A sealing groove is arranged in the socket housing, an O-ring is embedded in the sealing groove, and the O-ring is interference-fitted with the outer wall of the plug inserted into the socket housing to seal the two.

8. The connector according to claim 7, characterized in that: The inner wall of the socket housing is provided with an annular slope for limiting the insertion position of the plug.

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