Connector shell structure and connector for increasing creepage distance

Abstract

The utility model relates to the technical field of electric connectors, in particular to a connector shell structure and a connector for increasing creepage distance, which comprise a main shell, a mounting hole for accommodating a terminal is arranged in the main shell, an expansion groove and a process groove are arranged on the tail end surface of the main shell for assembling the terminal, a creepage platform is formed on the inner surface of the expansion groove, and the creepage distance is increased. The process grooves are arranged between the adjacent expansion grooves, and the width and the depth of the process grooves are in positive correlation with the creepage distance between the adjacent terminals. According to the utility model, fixation of the terminal and the electric connector housing and matching connection of the terminal are realized, and the electric connector is applied to the fields of unmanned aerial vehicles, A I robots and the like. And by arranging the capacity expansion groove, the creepage platform and the process groove, the creepage distance between the terminals is increased, so that the electrical performance is safer and more stable. And the concave-convex expansion grooves are formed in the outer surface of the main shell, so that the strength of the main shell can be improved, deformation buffering is provided, and the appearance of the connector shell is kept attractive.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector, especially relates to a connector shell structure and connector of increasing creeping distance. BACKGROUND

[0002] The structure of the connector copper piece in the prior art is different, so the connecting structure of the rear end is also different,

[0003] Because high-voltage connectors or high-current connectors need to bear higher loads, there is a problem of needing to improve the conventional protective automatic connector or shell for use with high-load terminals. Therefore, when operating or using the connector assembly, it is desirable to improve or increase the creeping distance between high-load terminals or between terminals and elements / circuits, and to improve the operation safety.

[0004] Based on the problems in the prior art, the utility model provides a connector shell structure and connector of increasing creeping distance. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a connector shell structure and connector of increasing creeping distance to solve the technical problem that the conventional connector shell in the prior art is difficult to meet the high requirement of high-load terminals on the creeping distance.

[0006] The technical scheme of the utility model is: a connector shell structure, including main shell, the installation hole of containing terminal is arranged in the main shell, the expansion groove is arranged on the tail end face of the terminal assembled in the main shell, the creeping platform is formed on the internal surface of the expansion groove, and the concave-convex solid structure is formed between the adjacent terminals of the tail end face.

[0007] Preferably, a process groove is arranged on the tail end face, the process groove is arranged between adjacent expansion grooves, and the width and depth of the process groove are positively correlated with the creeping distance between adjacent terminals.

[0008] Preferably, one end of the main shell is connected to the matched terminal, an insertion sleeve is formed outside the installation hole, and the adjacent insertion sleeves are separately arranged.

[0009] Preferably, the main shell includes a base, expansion cylinders arranged on both sides of the base, and the insertion sleeve, the installation hole is composed of the slot hole of the expansion groove, the insertion sleeve and the through hole in the base, the slot hole of the expansion groove has a larger diameter than the through hole in the base, and the internal surface of the expansion groove forms the creeping platform.

[0010] A connector for increasing creepage distance, comprising a socket connector and a plug connector, the socket connector comprising a socket connector housing and a plug terminal, the plug connector comprising a plug connector housing and a socket terminal, the plug terminal and the socket terminal being paired, the socket connector housing and the plug connector housing being paired.

[0011] Preferably, a notch is arranged on the socket connector housing, the notch being arranged between adjacent socket terminals to increase the creepage distance.

[0012] Preferably, a through hole is arranged inside the socket terminal, the through hole extending along the length direction of the socket terminal and penetrating through the inside of the socket terminal.

[0013] Preferably, expansion grooves are arranged on the outer walls of the socket connector housing and the main housing respectively, at least one inner end of the expansion grooves being recessed towards the inside of the housing.

[0014] Preferably, annular grooves are arranged on the plug terminal and the socket terminal respectively, the annular grooves being arranged circumferentially around the terminal body to increase the assembly strength of the terminal and the corresponding housing.

[0015] Compared with the prior art, the connector for increasing creepage distance has the following advantages:

[0016] The utility model belongs to the field of electric connector, relates to a connector housing structure and a connector for increasing creepage distance, realizes the fixation of terminal and electric connector housing and the connection of terminal pairing, and is applied to the fields of unmanned plane, AI robot and the like. By arranging the expansion groove, the creepage platform and the process groove, the creepage distance between the terminals is increased, and the electrical performance is more safe and stable. The expansion groove with the concave-convex shape is arranged on the outer surface of the main housing, the strength of the main housing is increased, deformation buffering is provided, and the appearance of the connector housing is kept beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings and embodiments:

[0018] Figure 1 It is cross section schematic view of connector housing structure of the utility model;

[0019] Figure 2 It is three dimensional schematic view of connector housing structure of the utility model;

[0020] Figure 3 It is three dimensional schematic view of the terminal arranged in the connector housing structure of the utility model;

[0021] Figure 4 It is cross section schematic view of the terminal arranged in the connector housing structure of the utility model;

[0022] Figure 5 The whole side three-dimensional schematic view of the connector with increased creeping distance according to the utility model;

[0023] Figure 6 The whole end three-dimensional schematic view of the connector with increased creeping distance according to the utility model;

[0024] Figure 7 The whole end three-dimensional schematic view of the connector with increased creeping distance according to the utility model;

[0025] Wherein: 1, main shell; 2, expansion groove; 3, process groove; 4, creeping platform; 5, mounting hole; 6, socket terminal; 7, plug terminal; 8, socket connector shell; 9, bar; 10, through hole; 11, expansion cylinder; 12, base section; 13, plug sleeve; 14, expansion groove; 15, annular groove. DETAILED DESCRIPTION

[0026] The content of the utility model will be further explained in detail in combination with specific embodiments:

[0027] As Figure 1 shown, a connector shell structure includes a main shell 1, and the main shell 1 is provided with a mounting hole 5 for accommodating a terminal.

[0028] The main shell 1 includes a base section 12, expansion cylinders 11 and plug sleeves 13 arranged on both sides of the base section 12. As Figure 3 shown, the base section 12 provides integrated connection of all terminal peripheries, and the base section 12 provides a holding part when the connector is plugged in, and the base section 12 is marked with positive and negative symbols on the shell, and the expansion groove 14 is arranged on the outer wall of the base section 12 and recessed into the base section 12, referring to the Figure 3 , the "several" character-shaped groove can provide deformation buffering when the shell is deformed due to temperature change, reduce the appearance deformation of the shell, and maintain the appearance of the shell.

[0029] The plug sleeves 13 and the expansion cylinders 11 are arranged on both sides of the base section 12, and the plug sleeve 13 is one end for plugging in the connector, and the adjacent plug sleeves 13 are separately arranged; when the adjacent terminals are plugged in, the sleeves are separated and independent, and the creeping distance between the terminals of the connector is increased.

[0030] Referring to the Figure 3 , the expansion cylinder 11 is arranged on the tail end face of the main shell 1 (opposite to the end for plugging in the terminal), and the expansion cylinder 11 is formed with an expansion groove 2 inside, and the Figure 2As shown, the slot hole of the expansion groove 2 is larger than the hole diameter in the base 12, and the inner surface of the expansion groove 2 forms a creepage platform 4, which increases the creepage distance between the tail end terminals of the connector.

[0031] Therefore, the terminal is integrally injection molded with the main shell 1, and the mounting hole 5 for accommodating the terminal is formed by the slot hole of the expansion groove 2, the plug sleeve 13, and the hole in the base 12.

[0032] Referring to the accompanying drawings Figure 3 A process groove 3 is provided on the tail end surface of the main shell 1 where the terminal is assembled, as shown in the accompanying drawings Figure 4 As shown, the process groove 3 is arranged between adjacent expansion grooves 2, and the process groove 3 plays a positioning role when the terminal and the shell are injection molded, and after molding, the width and depth of the process groove 3 are positively correlated with the creepage distance between adjacent terminals, which can further increase the creepage distance based on the expansion groove 2 and the creepage platform 4. Longer creepage distance means that the connector has higher electrical safety performance.

[0033] A connector for increasing the creepage distance, including a socket connector and a plug connector, as shown in the accompanying drawings Figure 5 As shown, the socket connector includes a socket connector shell 8 and a plug terminal 7, and the plug connector includes a plug connector shell and a socket terminal 6. The plug connector shell adopts the connector shell structure described above, and the socket connector shell and the plug connector shell are matched, and the plug terminal 7 and the socket terminal 6 are matched. A ring-shaped groove 15 is formed around the terminal body in the circumferential direction on the plug terminal 7 and the socket terminal 6, respectively, to increase the friction force and thus increase the assembly strength of the terminal and the corresponding shell and improve the assembly stability.

[0034] Referring to the accompanying drawings Figure 6 As shown, it can be seen that the tail end surface of the socket connector shell 8 matched with the main shell 1 can also be provided with a process groove 3, which is convenient for injection molding and can also increase the creepage distance between the terminals. A louver 9 is provided on the plug end of the socket connector shell 8, which is arranged between adjacent socket terminals 6 and can increase the creepage distance between adjacent terminals on the plug end.

[0035] In addition, in this embodiment, the terminal and the connector shell are injection molded and integrally formed, and the socket terminal 6 is provided with a through hole 10, as shown in the accompanying drawings Figure 7 The provided cross-sectional view shows the connection between the socket connector shell 8 and the main shell 1. The through hole 10 extends along the length direction of the socket terminal 6 and penetrates the inside of the socket terminal 6, which can release the internal gas pressure when the terminal is plugged in, and the terminal connector is more labor-saving when plugged in.

[0036] The utility model belongs to the field of electric connector relates to a connector casing structure and the connector of increasing creeping distance, realize terminal and electric connector casing fixed, and terminal pair connection, apply to unmanned plane, AI robot etc. field. Through setting expansion tank, creeping platform and process groove, increase the creeping distance between terminal, make its electrical performance more safe and stable. And set the expansion recess of concave-convex shape on the outer surface of main casing, can increase the strength of main casing, provide deformation buffer, keep the appearance of connector casing beautiful.

[0037] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and it cannot limit the protection scope of the utility model. For those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the utility model, therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

Claims

1. A connector housing structure characterized by comprising: The main shell is provided with mounting holes for accommodating terminals, and expansion grooves are arranged on the tail end surface of the main shell where the terminals are assembled, the inner surface of the expansion grooves forms a creepage platform, and a concave-convex solid structure is formed between adjacent terminals on the tail end surface.

2. The connector housing structure according to claim 1, wherein Process grooves are arranged on the tail end surface, and the process grooves are arranged between adjacent expansion grooves; the width and depth of the process grooves are positively correlated with the creepage distance between adjacent terminals.

3. A connector housing structure according to claim 2, wherein One end of the main shell is connected to a pair of terminals, and the mounting holes are formed with plug-in sleeves outside, and the plug-in sleeves are separately arranged between adjacent plug-in sleeves.

4. A connector housing structure according to claim 3, wherein The main shell includes a base portion, expansion cylinders arranged on both sides of the base portion, and plug-in sleeves; The mounting holes are connected by the hole of the expansion groove, the plug-in sleeve, and the hole in the base portion; the hole diameter of the hole of the expansion groove is larger than the hole diameter of the hole in the base portion, and the inner surface of the expansion groove forms the creepage platform.

5. A connector for increasing the creepage distance, characterized by, The plug-in connector includes a plug-in connector shell and a plug-in terminal, and the plug-in connector shell adopts the connector shell structure according to any one of claims 1-4, the plug-in terminal and the socket terminal are matched, and the socket connector shell and the plug-in connector shell are matched.

6. A creepage distance increasing connector according to claim 5, wherein A labyrinth is arranged on the socket connector shell, and the labyrinth is arranged between adjacent socket terminals to increase the creepage distance.

7. The creepage distance increasing connector according to claim 5, wherein A through hole is arranged in the socket terminal, the through hole extends along the length direction of the socket terminal and penetrates the interior of the socket terminal.

8. The creepage distance increasing connector according to claim 5, wherein Expansion grooves are arranged on the outer walls of the socket connector shell and the main shell, respectively, and at least one inner end of the expansion grooves is recessed towards the interior of the shell.

9. The creepage distance increasing connector according to claim 5, wherein Annular grooves are arranged on the plug-in terminal and the socket terminal, respectively, and the annular grooves are arranged circumferentially around the terminal body to increase the assembly strength of the terminal and the corresponding shell.

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