Connector with low-friction and easy-to-plug guide structure

Abstract

The utility model discloses a connector with a low-friction and easy-plugging guide structure. The connector comprises a plug part, a socket part and a plurality of guide modules, a plurality of upper connection holes are formed in a plug shell of the plug part; a plurality of lower connecting holes are formed in a socket shell of the socket part; the guide module comprises an elastic spring sleeve and a guide column in sliding fit with the elastic spring sleeve, the upper end of the guide column is connected with the upper connecting hole, and an annular groove in the middle section of the guide column is sleeved with the elastic spring sleeve in an interference mode. When the plug part is inserted into the socket part, the guide column is vertically inserted into the guide sleeve in a small gap, and the elastic spring sleeve is elastically expanded to be in interference fit with the guide sleeve, so that the guide force value of offset matching or inclined matching of the plug part and the socket part is reduced, and quick plugging is realized. The electric connector has the advantages of being small in guiding force, high in matching in-place reliability, high in allowable deviation and inclination amount, capable of effectively reducing poor contact and high in assembling efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of connector, especially the connector with low friction easy to plug guiding structure. BACKGROUND

[0002] The connector is an important part in the new energy field, and the connector is usually composed of a plug module and a socket module, that is, the plug module is inserted into the socket module, in order to assemble the two modules quickly and accurately, a guiding structure is usually arranged to guide the plug and the socket, and currently, force is applied to the plug and the socket, and the guiding structure is used to guide the plug and the socket forcibly, and the defects are as follows: first, when the plug and the socket are offset or inclined by a large distance, the force required for the guide column to guide is large, and when the plug-in force is not enough, the plug and the socket cannot be matched, and thus high-voltage terminals and low-voltage terminals are not in contact, or the force cannot reach the pull-out resistance, and the plug cannot be pulled out quickly, and the assembly efficiency is low; second, when the guiding force is too large, the guiding structure and other components of the connector are easily damaged, the service life of the product is reduced, and the cost is increased. SUMMARY

[0003] In order to solve one or more of the above problems, the utility model provides a connector with low friction easy to plug guiding structure.

[0004] According to one aspect of the utility model, the connector with low friction easy to plug guiding structure comprises a plug part, a socket part and a plurality of guiding modules.

[0005] The lower end of the plug shell of the plug part is provided with a first insertion cavity with an open top, and the upper wall of the first insertion cavity is provided with a plurality of upper connecting holes.

[0006] The upper end of the socket shell of the socket part is provided with a second insertion cavity with an open top, and the lower wall of the second insertion cavity is provided with a plurality of lower connecting holes.

[0007] The guiding module comprises an elastic spring sleeve, a guide column and a guide sleeve which are in sliding cooperation, the upper end of the guide column is fixedly connected with the upper connecting hole, the annular groove in the middle section of the guide column is in interference fit with the elastic spring sleeve, and the lower end of the guide sleeve is fixedly connected with the lower connecting hole.

[0008] When the plug part is inserted into the socket part, the guide column is vertically inserted into the guide sleeve with a small gap, and the elastic spring sleeve is elastically expanded to interference fit with the guide sleeve, so that the guiding force of the offset matching or the inclined matching of the plug part and the socket part is reduced, and the plug part and the socket part can be inserted and pulled out quickly.

[0009] In some embodiments, the elastic spring sleeve is a ring spring.

[0010] In some embodiments, the ring spring comprises a plurality of inclined elliptical inclined rings, the plurality of inclined rings are arranged in a circumferential array, the end of each adjacent inclined ring is integrally connected, and a circular ring is formed.

[0011] In some embodiments, the material of the annular spring is stainless steel wire.

[0012] In some embodiments, the groove wall in the circular groove is two symmetrical circular platforms, the large-diameter surface of the circular platform is integrally connected with the upper and lower end walls of the circular groove, and the small-diameter surface thereof is integrally connected.

[0013] In some embodiments, the upper connecting hole integrally extends downward to form an upper insertion tube, the upper connecting column at the upper end of the sliding section of the guide post is provided with a small-diameter upper connecting column, the upper connecting column is interference-fitted with the upper insertion tube, and the lower end of the upper connecting column is provided with a positioning shoulder that is in abutment with the lower end surface of the upper insertion tube; the upper insertion tube and the small gap shaft sleeve of the sliding section are connected with the guide hole of the guide sleeve.

[0014] In some embodiments, the lower end of the upper connecting column is further provided with a sealing ring groove, and a sealing ring in the sealing ring groove is interference-connected with the inner hole wall of the upper insertion tube.

[0015] In some embodiments, the lower end of the sliding section is provided with a reverse conical locating end.

[0016] The upper end of the guide sleeve is provided with a guide inclined surface, and a transition round corner is arranged between the guide inclined surface and the guide hole.

[0017] In some embodiments, the upper end of the lower connecting tube hole wall of the lower connecting hole is provided with a cylindrical convex ring, the upper end of the guide sleeve is provided with a small-diameter positioning section and a positioning surface, the positioning section is interference-connected with the cylindrical convex ring, and the positioning surface is in abutment with the lower end surface of the positioning section.

[0018] In some embodiments, two upper connecting holes are symmetrically arranged at the left and right ends of the upper wall of the first insertion cavity, and two lower connecting holes are symmetrically arranged at the left and right ends of the lower wall of the second insertion cavity.

[0019] The connector with the low-friction easy-to-plug guide structure is connected through the gap-connected guide post and guide sleeve, and the elastic spring sleeve is sleeved on the guide post, so as to realize elastic contact and facilitate quick guide and plugging. Its beneficial effects are as follows: first, the elastic contact structure reduces the frictional resistance from surface contact to line contact, and the deformation of the elastic member increases the flexible contact space, which can effectively avoid rigid and hard frictional contact, reduce the friction between the guide post and the guide sleeve during plugging operation, effectively reduce the guide force value of the plug and the socket when they are deviated or inclined, thereby ensuring the reliability of the plug and socket of the connector, effectively reducing the contact failure of high-voltage terminals and low-voltage terminals, improving the product yield, and facilitating plugging and use. Second, the assembly guide force is obviously reduced, the guide structure and other parts of the connector are prevented from being damaged, the product life is improved, and the cost is reduced. Third, the elastic spring sleeve is installed in the circular groove, the positioning precision is high, the strength can be maintained during use, and the elasticity is not easily lost, thereby significantly improving the stability and reliability, and prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1It is the main view schematic drawing of the connector with low friction easy plugging guiding structure of one embodiment of the utility model;

[0021] Figure 2 For Figure 1 The A-A cross section schematic drawing of the connector with low friction easy plugging guiding structure is shown in the figure;

[0022] Figure 3 For Figure 2 The three-dimensional explosion schematic drawing of the guiding module is shown in the figure;

[0023] Figure 4 For Figure 3 The three-dimensional schematic drawing of the guide column is shown in the figure;

[0024] Figure 5 For Figure 3 The three-dimensional schematic drawing of the elastic spring sleeve is shown in the figure;

[0025] Plug-in part 01, plug-in housing 1, first plug-in cavity 10, upper connecting hole 11, upper plug-in tube 12;

[0026] Socket part 02, socket housing 2, second plug-in cavity 20, lower connecting hole 21, cylindrical convex ring 22, lower plug-in tube 23;

[0027] Guiding module 03, guide column 3, annular groove 30, annular mesa 31, positioning shaft shoulder 32, sealing ring groove 33, center plug hole 34, locating end 35, sliding section 36, transition chamfer 37, upper connecting column 38;

[0028] Elastic spring sleeve 4, inclined ring 40;

[0029] Guide sleeve 5, guide hole 50, positioning section 51, positioning surface 52, guiding inclined surface 53, transition round corner 54;

[0030] Sealing ring 6;

[0031] Outer sealing ring 04. Specific embodiments

[0032] The utility model will be further explained in detail in combination with the drawings. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "in" and "out" refer to the directions towards or away from the geometric center of a particular component.

[0033] Figures 1 to 5 The connector with low friction easy plugging guiding structure according to one embodiment of the utility model is schematically shown. As shown in the figure, the connector with low friction easy plugging guiding structure comprises: plug-in part 01, socket part 02 and a plurality of guiding modules 03;

[0034] The first plug cavity 10 is provided with a plurality of upper connecting holes 11 on the upper wall.

[0035] The second plug cavity 20 is provided with a plurality of lower connecting holes 21 on the lower wall.

[0036] The guide module 03 comprises an elastic spring sleeve 4 and a slidingly fitted guide column 3 and guide sleeve 5. The upper end of the guide column 3 is fixedly connected to the upper connecting hole 11, and the annular groove 30 in the middle section of the guide column 3 is in interference fit with the elastic spring sleeve 4. The lower end of the guide sleeve 5 is fixedly connected to the lower connecting hole 21. The elastic spring sleeve 4 is preferably a ring spring, and the material of the ring spring is preferably stainless steel wire. The ring spring only needs a small installation space, effectively reduces the product volume, and has excellent elasticity, which can achieve good elastic contact and installation, multi-point contact, high concentration force, and almost lossless contact. The contact pressure of each contact point is not high, and the operation has good wear resistance, so it has good guiding ability.

[0037] When the plug part 01 is plugged into the socket part 02, the guide column 3 is vertically inserted into the guide sleeve 5 with a small gap, and the elastic spring sleeve 4 is elastically expanded to interference fit with the guide sleeve 5, thereby reducing the guiding force value of the plug part 01 and the socket part 02 when they are misaligned or tilted, and achieving quick plugging and unplugging.

[0038] The connector with a low-friction easy-to-plug guide structure comprises a guide column 3 and a guide sleeve 5 connected by a gap, and an elastic spring sleeve 4 is sleeved on the guide column 5, thereby achieving elastic contact and facilitating quick guiding and plugging. The beneficial effects are as follows: first, the elastic contact structure reduces the frictional resistance from surface contact to line contact, and the deformation of the elastic member increases the flexible contact space, which can effectively avoid rigid and hard frictional contact. During plugging and unplugging, the friction between the guide column 5 and the guide sleeve is reduced, the guiding force value when the plug and the socket are misaligned or tilted is effectively reduced, thereby ensuring the reliability of the plug and socket of the connector when they are aligned, effectively reducing the contact failure of high-voltage terminals and low-voltage terminals, and improving the product yield, the convenience of plugging and unplugging, the convenience of use, and the assembly efficiency; second, the assembly guiding force is significantly reduced, which avoids damaging the guide structure and other parts of the connector, improves the product life, and reduces the cost; third, the elastic spring sleeve 4 is installed in the annular groove 30, has high positioning accuracy, can maintain high strength during use and is not easy to cause elastic loss, thereby significantly improving the stability and reliability, and prolonging the service life.

[0039] Further, the annular spring comprises a plurality of oblique elliptical inclined coils 40, which are arranged in a circumferential array and integrally connected at the ends of adjacent inclined coils 40 to form a circular ring. The beneficial effects are: the inclined coil spring has simple structure, small size, less material and low cost, is suitable for small space and compact structure, and simplifies the size of the connector; secondly, the unique structure has a wide working range, allows a large tolerance on the joint surface, has good adaptability to processing errors and assembly errors, and thus achieves good guiding effect.

[0040] Further, the inner groove wall of the circular groove 30 is two symmetrically arranged circular platforms 31, the large diameter surface of the circular platform 31 is integrally connected with the upper and lower end walls of the circular groove 30, and the small diameter surface thereof is integrally connected; preferably, a round corner is arranged at the connection between the two circular platforms 31. The beneficial effects are: this structure can well fix the elastic spring sleeve 4 and accommodate the deformation amount thereof.

[0041] Further, the upper connecting hole 11 integrally extends downward to form an upper insertion pipe 12, the upper end of the sliding section 36 of the guide column 3 is provided with a small-diameter upper connecting column 38, the upper connecting column 38 is in interference fit with the upper connecting hole 11, and the lower end of the upper connecting column 38 is provided with a positioning shaft shoulder 32 which is in abutment with the lower end surface of the upper insertion pipe 12; the upper insertion pipe 12 and the sliding section 36 are in small-gap shaft sleeve connection with the guide hole 50 of the guide sleeve 5. The beneficial effects are: this structure has good product precision and is convenient to install.

[0042] Preferably, the lower end of the upper connecting column 38 is further provided with a sealing ring groove 33, and a sealing ring 6 in the sealing ring groove 33 is in interference connection with the inner hole wall of the upper insertion pipe 12. The beneficial effects are: the sealing structure ensures that no impurities enter the plug-in slot to hinder installation.

[0043] The upper end surface of the upper connecting column 38 is further provided with a center insertion hole 34, and a transition chamfer 37 is further arranged between the upper connecting column 38 and the positioning shaft shoulder 32.

[0044] Further, the lower end of the sliding section 36 is provided with a reverse conical locating end 35; the upper end of the guide sleeve 5 is provided with a guide inclined surface 53, and a transition round corner 54 is arranged between the guide inclined surface 53 and the guide hole 50. The beneficial effects are: this setting further improves the guiding ability and realizes quick installation.

[0045] Further, the upper end of the lower connecting hole 21 is provided with a lower insertion pipe 23 in the shape of a circular tube, the upper end of the guide sleeve 5 is in interference fit with the lower insertion pipe 23 and the lower end is in interference fit with the lower connecting hole 21; preferably, the hole wall of the lower insertion pipe 23 is provided with a cylindrical protruding ring 22 at the upper end, the upper end of the guide sleeve 5 is provided with a small-diameter positioning section 51 and a positioning surface 52, the positioning section 51 is in interference shaft sleeve connection with the cylindrical protruding ring 22, and the positioning surface 52 is in abutment with the lower end surface of the positioning section 51. The beneficial effects are: this setting provides a high-precision guide hole, which is convenient for quick plug-in and plug-out.

[0046] Further, the plug shell 1 lower section plug sleeve connects the second plug cavity 20, and the upper end of the connected place is provided with an outer sealing ring 04; the lower plug pipe 23 is inserted into the first plug cavity 10,

[0047] The first plug cavity 10 upper wall left and right ends are symmetrically provided with two upper connecting holes 11, the second plug cavity 20 lower wall left and right ends are symmetrically provided with two lower connecting holes 21, the guide column 3 of the two sets of guide modules 03 is interference fitted into the upper connecting hole 11 and the guide sleeve 5 thereof is interference fitted into the lower connecting hole 21. The outer sealing ring 04 is a sealing element provided with radial sealing and axial sealing in one. Its beneficial effect is that the structure is uniformly stressed, the offset load is small, and at the same time has good sealing and damping effect.

[0048] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application.

Claims

1. Connector with low-friction easy-plug guiding structure, characterized in that, It comprises a plug part (01), a socket part (02) and a plurality of guide modules (03); The lower end of the plug shell (1) of the plug part (01) is provided with an open first plug cavity (10), and the upper wall of the first plug cavity (10) is provided with a plurality of upper connecting holes (11); The upper end of the socket shell (2) of the socket part (02) is provided with an open second plug cavity (20), and the lower wall of the second plug cavity (20) is provided with a plurality of lower connecting holes (21); The guide module (03) comprises an elastic spring sleeve (4) and a slidingly fitted guide column (3) and guide sleeve (5), the upper end of the guide column (3) is fixedly connected with the upper connecting hole (11), the middle section of the guide column (3) is provided with a circular groove (30) which is in interference fit with the elastic spring sleeve (4), and the lower end of the guide sleeve (5) is fixedly connected with the lower connecting hole (21). When the plug part (01) is plugged into the socket part (02), the guide column (3) is vertically inserted into the guide sleeve (5) with a small gap, and the elastic spring sleeve (4) is elastically expanded to interfere with the guide sleeve (5), so as to reduce the guide force value of the plug part (01) and the socket part (02) when they are offset or inclined, thereby achieving quick plugging.

2. The connector with a low-friction easy-plug guide structure according to claim 1, characterized by, The elastic spring sleeve (4) is a ring spring.

3. The connector with a low-friction easy-plug guide structure according to claim 2, characterized by, The ring spring comprises a plurality of inclined elliptical inclined coils (40), and the plurality of inclined coils (40) are arranged in a circular array and the adjacent inclined coils (40) are integrally connected at the end, forming a circular ring.

4. The connector with a low-friction easy-plug guide structure according to claim 2, characterized by, The material of the ring spring is stainless steel wire.

5. The connector with a low-friction easy-plug guide structure according to claim 3, characterized by, The inner groove wall of the circular groove (30) is two symmetrical circular table surfaces (31), the large diameter surface of the circular table surface (31) is integrally connected with the upper and lower end walls of the circular groove (30), and the small diameter surface thereof is integrally connected.

6. The connector with a low-friction easy-plug guide structure according to claim 1, characterized by, The upper connecting hole (11) is integrally extended downward to form an upper plug pipe (12), the upper end of the sliding section (36) of the guide column (3) is provided with an upper connecting column (38) with a small diameter, the upper connecting column (38) is in interference fit with the upper connecting hole (11), and the lower end of the upper connecting column (38) is provided with a positioning shaft shoulder (32) which is in abutment with the lower end surface of the upper plug pipe (12); the upper plug pipe (12) and the sliding section (36) are in small gap shaft sleeve connection with the guide hole (50) of the guide sleeve (5).

7. The connector with low-friction easy-plug guidance structure according to claim 6, characterized by, The lower end of the upper connecting column (38) is further provided with a sealing ring groove (33), and a sealing ring (6) in the sealing ring groove (33) is in interference connection with the inner hole wall of the upper plug pipe (12).

8. The connector with low-friction easy-plug guidance structure according to claim 6, characterized by, The lower end of the sliding section (36) is provided with a locating end (35) in the shape of an inverted cone. The upper end of the guide sleeve (5) is provided with a guide inclined surface (53), and a transition round corner (54) is arranged between the guide inclined surface (53) and the guide hole (50).

9. The connector with low-friction easy-plug guidance structure according to claim 6, characterized by, The lower connecting hole (21) is provided with a cylindrical protruding ring (22) on the upper end of the hole wall of the lower connecting pipe (23), the upper end of the guide sleeve (5) is provided with a positioning section (51) with a small diameter and a positioning surface (52), the positioning section (51) is in interference connection with the cylindrical protruding ring (22), and the positioning surface (52) is in abutment with the lower end surface of the positioning section (51).

10. The connector with low-friction push-pull guide structure according to any one of claims 1 to 9, characterized in that, The upper wall of the first plug cavity (10) is symmetrically provided with two upper connecting holes (11) at the left and right ends, and the lower wall of the second plug cavity (20) is symmetrically provided with two lower connecting holes (21) at the left and right ends.

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