Connector plug barrel

Abstract

This utility model discloses a connector insert sleeve, comprising: a base portion, a mounting portion, and a sleeve portion. The sleeve portion extends forward from the base portion, and the mounting portion extends rearward from the base portion. The sleeve portion includes an inner sleeve wall and an outer sleeve wall, and has multiple through holes and a cavity. The through holes penetrate the inner and outer sleeve walls radially along the sleeve portion, and the cavity communicates with the multiple through holes. The cavity is used to insert the pins of a mating connector. The sleeve portion is a metal injection molded part. The inner sleeve wall is injection molded from metal, and the outer sleeve wall is machined. The inner sleeve wall is injection molded from metal, and its precision after sintering meets the customer's drawing requirements, eliminating the need for further machining. The outer sleeve wall has higher precision and roughness requirements, so a margin is left in the design, and it is subsequently machined. This ensures the precision and roughness requirements of the connector insert sleeve while significantly reducing the processing cost of the connector insert sleeve.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a connector insert sleeve. Background Technology

[0002] Existing liquid-cooled products have complex connector socket structures, which were originally entirely machined. The connector socket consists of an inner and outer cylinder wall. The inner cylinder wall has a complex structure and requires high precision; the machining time is long, and the requirements for machining equipment and its precision are high. Therefore, the cost of machining the entire product is very high. Utility Model Content

[0003] One of the technical problems to be solved by this utility model is to provide a low-cost connector socket.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A connector insert sleeve includes: a base portion, a mounting portion, and a sleeve portion. The sleeve portion extends forward from the base portion, and the mounting portion extends rearward from the base portion. The sleeve portion includes an inner sleeve wall and an outer sleeve wall. The sleeve portion has multiple through holes and a sleeve cavity. The through holes penetrate the inner sleeve wall and the outer sleeve wall in a radial direction of the sleeve portion. The sleeve cavity communicates with the multiple through holes and is used to insert the pins of a mating connector.

[0006] The cylindrical body is a metal injection molded part, the inner cylinder wall is made of metal injection molded, and the outer cylinder wall is machined.

[0007] Compared with existing technologies, the connector plug sleeve of this utility model has a cylindrical body made of metal injection molding. The inner cylinder wall is injection molded from metal, while the outer cylinder wall is machined. The inner cylinder wall, being injection molded from metal, achieves the required precision after sintering, meeting customer drawing requirements and eliminating the need for further machining. The outer cylinder wall, requiring higher precision and surface roughness, is designed with allowances and subsequently machined. This ensures the precision and surface roughness requirements of the connector plug sleeve while significantly reducing processing costs.

[0008] Furthermore, the connector insert cylinder also includes a mating portion, which extends forward from the base portion into the cylinder cavity. The mating portion is truncated cone-shaped and is used to connect with the pins of the mating connector.

[0009] Furthermore, the cylindrical body includes a first cylindrical body and a second cylindrical body, the first cylindrical body being connected between the second cylindrical body and the base, and the cylindrical cavity including a first cylindrical cavity and a second cylindrical cavity, the first cylindrical body having a first cylindrical cavity and the second cylindrical body having a second cylindrical cavity, the inner diameter of the cylindrical cavity being smaller than the inner diameter of the second cylindrical cavity;

[0010] The outer wall surface of the first cylindrical part and the outer wall surface of the second cylindrical part are located on the same surface. The inner wall surface of the first cylindrical part is closer to the central axis of the cylindrical part than the inner wall surface of the second cylindrical part. An inclined step surface is formed at the junction of the inner wall surface of the first cylindrical part and the inner wall surface of the second cylindrical part.

[0011] Furthermore, the plurality of through holes includes a set of first through holes and a set of second through holes. The set of first through holes is disposed in the first cylindrical part, and the set of second through holes is disposed in the second cylindrical part. The set of first through holes is evenly distributed around the central axis of the cylindrical part, and the set of second through holes is evenly distributed around the central axis of the cylindrical part.

[0012] Furthermore, the flow cross-sectional area of ​​the first through hole is larger than that of the second through hole.

[0013] Furthermore, the docking portion is located inside the first cylindrical cavity, the outer diameter of the base portion is larger than the outer diameter of the cylindrical body portion, and the outer diameter of the cylindrical body portion is larger than the outer diameter of the mounting portion; the thickness of the base portion in the front-to-back direction is smaller than the thickness of the mounting portion in the front-to-back direction, and both the base portion and the mounting portion are cylindrical in shape.

[0014] Furthermore, the first cylindrical part has a groove, the groove is connected to the first through hole, the first cylindrical part includes a groove wall, the groove wall includes a bottom wall and two side walls, the bottom wall extends inward from the outer cylindrical wall and towards the first through hole, and the side walls extend from the outer cylindrical wall to the bottom wall.

[0015] Furthermore, the first through hole is a rounded rectangle, the second through hole is a rounded rectangle, the first cylinder has a first arc transition at each of the four corners of the first through hole, and the second cylinder has a second arc transition at each of the four corners of the second through hole.

[0016] Furthermore, the docking portion includes a bottom cone portion, a cone body portion, and a top cone portion. The bottom cone portion is connected to the base portion, and the cone body portion is connected between the bottom cone portion and the top cone portion. The outer diameter of the top cone portion is smaller than the outer diameter of the middle portion of the cone body portion, and the outer diameter of the bottom cone portion is larger than the outer diameter of the middle portion of the cone body portion. The axial length of the docking portion is smaller than the axial length of the first through hole.

[0017] Furthermore, the length of the second through hole in the axial direction is less than the length of the first through hole in the axial direction; the dimension of the second through hole in the circumferential direction is less than the dimension of the first through hole in the circumferential direction.

[0018] Furthermore, the connector socket is entirely injection molded from metal, and the base and mounting parts are also injection molded from metal. Attached Figure Description

[0019] Figure 1 This is a perspective view of one embodiment of the connector plug tube conforming to this utility model;

[0020] Figure 2 Is it like this? Figure 1 A perspective sectional view of the connector insert sleeve shown;

[0021] Figure 3 Is it like this? Figure 1 The bottom view of the connector socket shown;

[0022] Figure 4 Is it like this? Figure 3 The connector insert shown is a cross-sectional view along the AA direction.

[0023] Explanation of the labels in the diagram:

[0024] The connector includes a plug cylinder 100, a base portion 11, a mounting portion 12, a cylinder portion 13, a first cylinder portion 131, a second cylinder portion 132, an inner cylinder wall surface 133, an outer cylinder wall surface 134, an inclined step surface 135, a through hole 14, a first through hole 141, a second through hole 142, a first arc transition 143, a second arc transition 144, a cylinder cavity 15, a first cylinder cavity 151, a second cylinder cavity 152, a groove 16, a groove wall 161, a groove bottom wall 162, a groove side wall 163, a mating portion 17, a bottom cone portion 171, a cone body portion 172, and a top cone portion 173. Detailed Implementation

[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0026] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should be understood that the terms "first," "second," and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one; "multiple" indicates two or more. Unless otherwise stated, terms such as "front," "rear," "lower," and / or "upper" are for ease of description only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects.

[0028] The exemplary embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementation methods can complement or combine with each other.

[0029] like Figures 1 to 4 As shown, a connector insert cylinder 100 conforming to this utility model includes: a base portion 11, a mounting portion 12, and a cylinder portion 13. The cylinder portion 13 extends forward from the base portion 11, and the mounting portion 12 extends rearward from the base portion 11. The cylinder portion 13 includes an inner cylinder wall surface 133 and an outer cylinder wall surface 134. The cylinder portion 13 has multiple through holes 14 and a cylinder cavity 15. The through holes 14 penetrate the inner cylinder wall surface 133 and the outer cylinder wall surface 134 in the radial direction of the cylinder portion 13. The cylinder cavity 15 communicates with the multiple through holes 14 and is used to insert the pins of the mating connector.

[0030] The cylindrical part 13 is a metal injection molded part, the inner cylinder wall 133 is metal injection molded, and the outer cylinder wall 134 is machined.

[0031] Compared with the prior art, the cylindrical part 13 of the connector plug cylinder 100 of this utility model is a metal injection molded part. The inner cylinder wall 133 is metal injection molded, and the outer cylinder wall 134 is first metal injection molded and then machined. The inner cylinder wall 133 is metal injection molded, and the precision of the inner cylinder wall 133 after sintering can meet the customer's drawing requirements, so no further machining is required. The outer cylinder wall 134 has higher precision and roughness requirements, and a margin is left in the design, which is completed by subsequent machining. This ensures the precision and roughness requirements of the connector plug cylinder 100, and at the same time, it can significantly reduce the processing cost of the connector plug cylinder 100.

[0032] The connector insert cylinder 100 also includes a mating part 17, which extends forward from the base part 11 into the cylinder cavity 15. The mating part 17 is truncated cone-shaped and is used to connect with the pins of the mating connector. The design of the mating part 17 facilitates the connection stability with the mating connector.

[0033] The cylindrical body 13 includes a first cylindrical body 131 and a second cylindrical body 132. The first cylindrical body 131 is connected between the second cylindrical body 132 and the base 11. The cylindrical cavity 15 includes a first cylindrical cavity 151 and a second cylindrical cavity 152. The first cylindrical body 131 has a first cylindrical cavity 151, and the second cylindrical body 132 has a second cylindrical cavity 152. The inner diameter of the first cylindrical cavity 151 is smaller than the inner diameter of the second cylindrical cavity 152. Because the inner diameter of the cylindrical cavity 151 is smaller than the inner diameter of the second cylindrical cavity 152, it is easier to insert the connector and fix it to the cylindrical body 13 when inserting it.

[0034] The outer wall surface 134 of the first cylindrical section 131 and the outer wall surface 134 of the second cylindrical section 132 are located on the same plane. The inner wall surface 133 of the first cylindrical section 131 is closer to the central axis of the cylindrical section 13 than the inner wall surface 133 of the second cylindrical section 132. An inclined stepped surface 135 is formed at the junction of the inner wall surface 133 of the first cylindrical section 131 and the inner wall surface 133 of the second cylindrical section 132. The inclined stepped surface 135 is provided to limit the positioning of the connector and to facilitate the smooth transition when the connector is inserted, making the insertion more stable.

[0035] The plurality of through holes 14 includes a set of first through holes 141 and a set of second through holes 142. The set of first through holes 141 is disposed in the first cylindrical portion 131, and the set of second through holes 142 is disposed in the second cylindrical portion 132. The set of first through holes 141 and the set of second through holes 142 are evenly distributed circumferentially around the central axis of the cylindrical portion 13. The flow cross-sectional area of ​​the first through holes 141 is larger than that of the second through holes 142. The two sets of holes design, and the larger flow cross-sectional area of ​​the first through holes 141, facilitates heat dissipation of the pin connection portion of the mating connector.

[0036] The mating part 17 is located inside the first cylindrical cavity 151. The outer diameter of the base part 11 is larger than the outer diameter of the cylindrical body part 13, and the outer diameter of the cylindrical body part 13 is larger than the outer diameter of the mounting part 12. The thickness of the base part 11 in the front-to-back direction is smaller than the thickness of the mounting part 12 in the front-to-back direction. Both the base part 11 and the mounting part 12 are cylindrical. The mounting part 12 is used to install the connector insertion sleeve 100 into the connector.

[0037] The first cylindrical portion 131 has a groove 16, which communicates with the first through hole 141. The first cylindrical portion 131 includes a groove wall 161, which includes a bottom wall 162 and two side walls 163. The bottom wall 162 extends inward from the outer cylindrical wall surface 134 and inclined towards the first through hole 141, while the side walls 163 extend from the outer cylindrical wall surface 134 towards the bottom wall 162. The groove 16 facilitates demolding of the first through hole 141.

[0038] The first through hole 141 is a rounded rectangle, the second through hole 142 is a rounded rectangle, the first cylinder is provided with a first arc transition 143 at the four corners of the first through hole 141, and the second cylinder is provided with a second arc transition 144 at the four corners of the second through hole 142.

[0039] The docking portion 17 includes a bottom cone portion 171, a cone portion 172, and a top cone portion 173. The bottom cone portion 171 is connected to the base portion 11, and the cone portion 172 is connected between the bottom cone portion 171 and the top cone portion 173. The outer diameter of the top cone portion 173 is smaller than the outer diameter of the middle part of the cone portion 172, and the outer diameter of the bottom cone portion 171 is larger than the outer diameter of the middle part of the cone portion 172. The length of the docking portion 17 in the axial direction is smaller than the length of the first through hole 141 in the axial direction.

[0040] The length of the second through hole 142 in the axial direction is less than the length of the first through hole 141 in the axial direction; the size of the second through hole 142 in the circumferential direction is less than the size of the first through hole 141 in the circumferential direction.

[0041] The connector plug sleeve 100 is entirely injection molded from metal, with the base portion 11 and mounting portion 12 also injection molded from metal. The connector plug sleeve 100 of this invention is entirely injection molded from metal, with the inner cylinder wall 133 also injection molded from metal. After sintering, the precision of the inner cylinder wall 133 meets the customer's drawing requirements, eliminating the need for further machining. The outer cylinder wall 134 requires higher precision and surface roughness; allowances are left in the design, and subsequent machining completes the process. This ensures the precision and surface roughness requirements of the connector plug sleeve 100 while significantly reducing its processing cost.

[0042] This utility model is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort shall fall within the protection scope of this utility model.

Claims

1. A connector plug-in barrel comprising: The base portion (11), mounting portion (12), and cylindrical portion (13) are provided. The cylindrical portion (13) extends forward from the base portion (11), and the mounting portion (12) extends backward from the base portion (11). The cylindrical portion (13) includes an inner cylindrical wall surface (133) and an outer cylindrical wall surface (134). The cylindrical portion (13) has multiple through holes (14) and a cylindrical cavity (15). The through holes (14) penetrate the inner cylindrical wall surface (133) and the outer cylindrical wall surface (134) in the radial direction of the cylindrical portion (13). The cylindrical cavity (15) communicates with the multiple through holes (14) and is used to insert the pins of the mating connector. The feature is that the cylindrical part (13) is a metal injection molded part, the inner cylinder wall (133) is metal injection molded, and the outer cylinder wall (134) is machined.

2. The connector hub of claim 1, wherein: The connector insert cylinder also includes a mating part (17), which extends forward from the base part (11) into the cylinder cavity (15). The mating part (17) is truncated cone-shaped and is used to connect with the pins of the mating connector.

3. The connector hub of claim 2, wherein: The cylindrical part (13) includes a first cylindrical part (131) and a second cylindrical part (132). The first cylindrical part (131) is connected between the second cylindrical part (132) and the base part (11). The cylindrical cavity (15) includes a first cylindrical cavity (151) and a second cylindrical cavity (152). The first cylindrical part (131) has a first cylindrical cavity (151), and the second cylindrical part (132) has a second cylindrical cavity (152). The inner diameter of the first cylindrical cavity (151) is smaller than the inner diameter of the second cylindrical cavity (152). The outer wall surface (134) of the first cylindrical part (131) and the outer wall surface (134) of the second cylindrical part (132) are located on the same surface. The inner wall surface (133) of the first cylindrical part (131) is closer to the central axis of the cylindrical part (13) than the inner wall surface (133) of the second cylindrical part (132). The cylindrical part (13) forms an inclined step surface (135) at the junction of the inner wall surface (133) of the first cylindrical part (131) and the inner wall surface (133) of the second cylindrical part (132).

4. The connector hub of claim 3, wherein: The plurality of through holes (14) includes a set of first through holes (141) and a set of second through holes (142). The set of first through holes (141) is disposed in the first cylindrical part (131), and the set of second through holes (142) is disposed in the second cylindrical part (132). The set of first through holes (141) is evenly distributed around the central axis of the cylindrical part (13), and the set of second through holes (142) is evenly distributed around the central axis of the cylindrical part (13). The flow cross-sectional area of ​​the first through hole (141) is larger than the flow cross-sectional area of ​​the second through hole (142).

5. The connector insert sleeve as described in claim 3, characterized in that: The docking part (17) is located inside the first cylindrical cavity (151). The outer diameter of the base part (11) is larger than the outer diameter of the cylindrical part (13), and the outer diameter of the cylindrical part (13) is larger than the outer diameter of the mounting part (12). The thickness of the base part (11) in the front-to-back direction is smaller than the thickness of the mounting part (12) in the front-to-back direction. Both the base part (11) and the mounting part (12) are cylindrical.

6. The connector socket as described in claim 4, characterized in that: The first cylindrical part (131) has a groove (16) that communicates with the first through hole (141). The first cylindrical part (131) includes a groove wall (161), which includes a bottom wall (162) and two side walls (163). The bottom wall (162) extends inward from the outer cylindrical wall (134) and obliquely toward the first through hole (141). The side walls (163) extend from the outer cylindrical wall (134) toward the bottom wall (162).

7. The connector socket as described in claim 4, characterized in that: The first through hole (141) is a rounded rectangle, the second through hole (142) is a rounded rectangle, the first cylinder is provided with a first arc transition (143) at the four corners of the first through hole (141), and the second cylinder is provided with a second arc transition (144) at the four corners of the second through hole (142).

8. The connector socket as described in claim 4, characterized in that: The docking portion (17) includes a bottom cone portion (171), a cone portion (172), and a top cone portion (173). The bottom cone portion (171) is connected to the base portion (11). The cone portion (172) is connected between the bottom cone portion (171) and the top cone portion (173). The outer diameter of the top cone portion (173) is smaller than the outer diameter of the middle part of the cone portion (172). The outer diameter of the bottom cone portion (171) is larger than the outer diameter of the middle part of the cone portion (172). The length of the docking portion (17) in the axial direction is smaller than the length of the first through hole (141) in the axial direction.

9. The connector insert sleeve as described in claim 4, characterized in that: The length of the second through hole (142) in the axial direction is less than the length of the first through hole (141) in the axial direction; The second through hole (142) has a smaller circumferential dimension than the first through hole (141).

10. The connector socket as described in any one of claims 1 to 9, characterized in that: The connector plug tube (100) is entirely made of metal injection molding, and the base part (11) and the mounting part (12) are also made of metal injection molding.

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