Test adapter for three-chamber Ethernet interfaces

Abstract

This utility model provides a test adapter for a three-cavity Ethernet interface. The test adapter includes: a mounting block with guide bosses; three guide blocks, each passing through the mounting block and protruding relative to the first end face of the guide bosses, defined as guide protrusions, the height of which is less than the distance between the annular protrusion and the opening of the mounting groove; and three sets of test terminals, each embedded in a corresponding guide block. During testing, the guide bosses first engage with the sidewall of the mounting groove for initial guidance, aligning the three guide protrusions with their corresponding annular protrusions. Then, the three guide protrusions engage with the inner walls of their respective annular protrusions for secondary guidance, ensuring that the three sets of test terminals within the three guide blocks can be electrically connected to the three sets of connection terminals, thereby reducing the risk of damage to the connection terminals.

Description

Technical Field

[0001] This utility model relates to the field of Ethernet interface testing technology, and in particular to a test adapter for a three-cavity Ethernet interface. Background Technology

[0002] Ethernet interfaces are common network communication interfaces, especially prevalent in automotive electronics. The three-chamber Ethernet interface, as one type of Ethernet interface, has a relatively complex structure, making it difficult for existing test adapters to align during automated, semi-automated, or manual testing, resulting in easily damaged connection terminals. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a test adapter for a three-chamber Ethernet interface, which can reduce the risk of damage to the connection terminals.

[0004] This utility model provides a test adapter for a three-cavity Ethernet interface. The three-cavity Ethernet interface includes an interface body and three sets of connection terminals. The interface body has a mounting groove. The three sets of connection terminals pass through the interface body and protrude from the bottom wall of the mounting groove. The bottom wall has three annular protrusions surrounding the corresponding connection terminals. The test adapter includes: a mounting block with a guide boss for engaging with the side wall of the mounting groove for guidance; three guide blocks, each passing through the mounting block and protruding from the first end face of the guide boss, defined as guide protrusions, the height of which is less than the distance between the annular protrusions and the opening of the mounting groove, the three guide protrusions engaging with the inner wall of the corresponding annular protrusions for guidance; and three sets of test terminals embedded in the corresponding guide blocks for electrical connection with the connection terminals.

[0005] The test adapter provided by this utility model has at least the following beneficial effects:

[0006] By setting guide bosses on the mounting block and three guide blocks on the mounting block, the guide blocks can protrude relative to the first end face of the guide boss to form guide protrusions. The height of the guide protrusions is set to be less than the distance between the annular protrusion and the groove opening of the mounting groove. During the test, the guide bosses can first cooperate with the side wall of the mounting groove for primary guidance, so that the three guide protrusions are aligned with the corresponding annular protrusions. Then, the three guide protrusions cooperate with the inner wall of the corresponding annular protrusions for secondary guidance. This ensures that the three sets of test terminals in the three guide blocks can be electrically connected to the three sets of connection terminals, thereby reducing the risk of the connection terminals being damaged.

[0007] In one embodiment of this implementation, the first end face and the first side face of the guide boss are connected by a first transition cone surface.

[0008] In one embodiment of this implementation, the second end face and the second side face of the guide protrusion are connected by a second transition cone surface.

[0009] In one embodiment of this implementation, the three guide protrusions are arranged sequentially at intervals on the first end face.

[0010] In one embodiment of this implementation, the second end face of the guide protrusion is provided with a connecting guide cone hole and a mounting hole, the test terminal is mounted in the mounting hole, and the guide cone hole is used to guide the connection terminal.

[0011] In one embodiment of this implementation, the test terminal includes a female terminal and a male terminal, the female terminal being used for electrical connection with the connection terminal, and the male terminal being used for electrical connection with a signal cable.

[0012] In one embodiment of this implementation, the test adapter further includes a pin, the mounting block has an assembly hole, a portion of the guide block is accommodated in the assembly hole, and is fixed in the assembly hole by the pin.

[0013] In one embodiment of this implementation, the mounting block has a pin hole communicating with the assembly hole, and the guide block has a limiting groove on its outer periphery. The pin engages with the pin hole and extends into the limiting groove to restrict the guide block from moving along the assembly hole.

[0014] In one embodiment of this implementation, the guide block has two limiting grooves, which are arranged opposite to each other.

[0015] In one embodiment of this implementation, in two adjacent guide blocks, a limiting groove of one guide block is disposed opposite to a limiting groove of the other guide block and cooperates with the same pin.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a three-dimensional structural diagram of a three-chamber Ethernet interface;

[0019] Figure 2 yes Figure 1 A front view diagram of the three-cavity Ethernet interface;

[0020] Figure 3 This is a three-dimensional structural schematic diagram of the test adapter according to one embodiment of the present invention;

[0021] Figure 4 yes Figure 3 A front view structural diagram of the test adapter;

[0022] Figure 5 yes Figure 3 A three-dimensional structural diagram of the test adapter behind the hidden mounting block;

[0023] Figure 6 yes Figure 3 A three-dimensional structural diagram of the mounting block in the test adapter;

[0024] Figure 7 yes Figure 3 A cross-sectional view of the guide block and test terminals in the test adapter;

[0025] Figure 8 yes Figure 7 A magnified structural diagram of region I.

[0026] Figure label:

[0027] Three-chamber Ethernet interface 200; interface body 210; connection terminal 220; mounting slot 230; bottom wall 2310; side wall 2320; annular protrusion 240; inner wall 2410;

[0028] Test adapter 100;

[0029] Mounting block 10; guide boss 11; first end face 1101; first side face 1102; first rounded corner arc surface 1103; first transition cone surface 1104; mounting hole 103; pin hole 104;

[0030] Guide block 20; guide protrusion 21; second end face 2101; second side face 2102; second rounded corner arc surface 2103; second transition cone surface 2104; limiting groove 201; guide cone hole 203; mounting hole 204;

[0031] Test terminal 30; Female terminal 31; Male terminal 32;

[0032] Pin 40. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Please see Figures 1 to 4 and Figure 7 , Figure 1 This is a three-dimensional structural diagram of the three-chamber Ethernet interface 200; Figure 2 yes Figure 1 A front view schematic diagram of the three-cavity Ethernet interface 200; Figure 3 This is a three-dimensional structural schematic diagram of the test adapter 100 according to one embodiment of the present utility model; Figure 4 yes Figure 3A front view structural schematic diagram of the test adapter 100; Figure 7 yes Figure 3 A cross-sectional view of the guide block 20 and test terminal 30 in the test adapter 100. This utility model provides a test adapter 100 for a three-cavity Ethernet interface 200. The three-cavity Ethernet interface 200 includes an interface body 210 and three sets of connection terminals 220. The interface body 210 has a mounting groove 230. The three sets of connection terminals 220 pass through the interface body 210 and protrude from the bottom wall 2310 of the mounting groove 230. The bottom wall 2310 has three annular protrusions 240 surrounding the corresponding connection terminals 220. The test adapter 100 includes a mounting block 10, three guide blocks 20, and three sets of test terminals 30. The mounting block 10 has a guide boss 11, which cooperates with the side wall 2320 of the mounting groove 230 for guidance. The three guide blocks 20 pass through the mounting block 10 and protrude from the first end face 1101 of the guide boss 11. The portion of the guide block 20 that protrudes relative to the first end face 1101 is defined as the guide protrusion 21. The height D1 of the guide protrusion 21 is less than the distance D2 between the annular protrusion 240 and the opening of the mounting groove 230. The three guide protrusions 21 are respectively used to cooperate with the inner wall 2410 of the corresponding annular protrusion 240 for guidance. The three sets of test terminals 30 are respectively embedded in the corresponding guide blocks 20 and are used for electrical connection with the connection terminal 220.

[0039] Specifically, each group of connection terminals 220 contains two connection terminals 220, and each group of test terminals 30 contains two test terminals 30. It should be noted that during testing, if there is a positional deviation between the three-cavity Ethernet interface 200 and the test adapter 100 (their relative positions on a plane perpendicular to the test direction, i.e., the direction in which they approach each other during testing), the guide boss 11 can abut against the side wall 2320 of the mounting groove 230 to achieve guidance, ensuring that the guide protrusion 21 aligns with the annular protrusion 240. When there is no positional deviation between the three-cavity Ethernet interface 200 and the test adapter 100, the guide boss 11 does not need to play a guiding role during testing, and a gap is maintained between the guide boss 11 and the side wall 2320 of the mounting groove 230. In this embodiment, the cross-sectional dimension of the guide boss 11 is slightly smaller than that of the mounting groove 230, so that the guide boss 11 can play a guiding role when there is a positional deviation between the three-cavity Ethernet interface 200 and the test adapter 100, and can reduce the friction between the guide boss 11 and the side wall 2320 of the mounting groove 230 when there is no positional deviation between the three-cavity Ethernet interface 200 and the test adapter 100, thereby reducing the test resistance.

[0040] In this embodiment, the cross-sectional dimensions of the guide protrusion 21 are basically matched with the cross-sectional dimensions of the cavity surrounded by the annular protrusion 240. It is understood that, under the guiding action of the guide boss 11, the three guide protrusions 21 and the three annular protrusions 240 can be aligned respectively. Considering that the test terminals 30 in the guide protrusions 21 and the connection terminals 220 in the annular protrusions 240 are relatively small devices, the inner walls 2410 of the guide protrusions 21 and the annular protrusions 240 need to further cooperate to provide a higher precision guiding effect to ensure that the two can cooperate to achieve a stable electrical connection for testing.

[0041] By setting a guide boss 11 on the mounting block 10 and setting three guide blocks 20 on the mounting block 10, the guide blocks 20 can protrude relative to the first end face 1101 of the guide boss 11 to form a guide protrusion 21. The height D1 of the guide protrusion 21 is set to be less than the distance D2 between the annular protrusion 240 and the groove opening of the mounting groove 230. During the test, the guide boss 11 can first cooperate with the side wall 2320 of the mounting groove 230 for a first guidance, so that the three guide protrusions 21 are respectively aligned with the corresponding annular protrusions 240. Then, the three guide protrusions 21 cooperate with the inner wall 2410 of the corresponding annular protrusions 240 for a second guidance. This ensures that the three sets of test terminals 30 in the three guide blocks 20 can be electrically connected to the three sets of connection terminals 220, thereby reducing the risk of the connection terminals 220 being damaged.

[0042] In one embodiment of this implementation, please refer to Figure 3 and Figure 4 The first end face 1101 and the first side face 1102 of the guide boss 11 are connected by the first transition cone surface 1104. In this way, when there is a large positional deviation, the first transition cone surface 1104 can abut against the interface body 210 at the slot of the mounting groove 230, so that the guide boss 11 and the slot of the mounting groove 230 can be re-aligned.

[0043] In this embodiment, in order to reduce the friction between the guide boss 11 and the side wall 2320 of the mounting groove 230 during the process of realigning the guide boss 11 with the groove of the mounting groove 230, the first transition cone surface 1104 and the first side surface 1102 are connected by the first rounded arc surface 1103.

[0044] In one embodiment of this implementation, please refer to Figure 3 and Figure 4The second end face 2101 and the second side face 2102 of the guide protrusion 21 are connected by the second transition cone surface 2104. In this way, when there is a large positional deviation, the second transition cone surface 2104 can abut against the opening of the annular protrusion 240, so that the guide protrusion 21 can smoothly extend into the opening of the annular protrusion 240, and the test terminal 30 and the connection terminal 220 are aligned and electrically connected.

[0045] In this embodiment, in order to reduce the friction between the guide protrusion 21 and the inner wall 2410 of the annular protrusion 240 as the guide protrusion 21 extends into the opening of the annular protrusion 240, the first transition cone surface 1104 and the first side surface 1102 are connected by the first rounded arc surface 1103.

[0046] In one embodiment of this implementation, please refer to Figure 1 and Figure 3 Three guide protrusions 21 are arranged sequentially at intervals on the first end face 1101. In this arrangement, the three guide protrusions 21 can correspond and cooperate with the three annular protrusions 240.

[0047] In one embodiment of this implementation, please refer to Figure 7 and Figure 8 , Figure 8 yes Figure 7 An enlarged structural diagram of region I is shown. The second end face 2101 of the guide protrusion 21 has a communicating guide cone hole 203 and a mounting hole 204. The test terminal 30 is mounted in the mounting hole 204, and the guide cone hole 203 guides the connecting terminal 220. This configuration ensures that the connecting terminal 220 can be guided through the guide cone hole 203, allowing it to pass sequentially into the guide cone hole 203 and the mounting hole 204, and to electrically connect with the test terminal 30 located within the mounting hole 204.

[0048] In one embodiment of this implementation, please refer to Figure 7 The test terminal 30 includes a female terminal 31 and a male terminal 32. The female terminal 31 is used for electrical connection with the connection terminal 220, and the male terminal 32 is used for electrical connection with the signal cable. This configuration facilitates the transmission of the signal cable type to the connection terminal 220 through the test terminal 30, thereby enabling testing of the three-chamber Ethernet interface 200.

[0049] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 , Figure 5 yes Figure 3 A three-dimensional structural diagram of the test adapter 100 behind the hidden mounting block 10; Figure 6 yes Figure 3A three-dimensional structural diagram of the mounting block 10 in the test adapter 100 is shown. The test adapter 100 also includes a pin 40. The mounting block 10 has an assembly hole 103. A portion of the guide block 20 is accommodated in the assembly hole 103 and fixed to the assembly hole 103 by the pin 40. This configuration makes the disassembly and assembly of the guide block 20 relatively simple, facilitating replacement when the test terminal 30 is damaged.

[0050] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 The mounting block 10 has a pin hole 104 communicating with the assembly hole 103. The guide block 20 has a limiting groove 201 on its outer periphery. The pin 40 engages with the pin hole 104 and extends into the limiting groove 201 to restrict the movement of the guide block 20 along the assembly hole 103. This design is relatively simple and occupies less space within the mounting block 10.

[0051] Specifically, the extension direction of the limiting groove 201 is perpendicular to the extension direction of the assembly hole 103, so that the pin 40 can play a limiting role after it extends into the limiting groove 201.

[0052] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 The guide block 20 has two limiting grooves 201, which are arranged opposite to each other. With this arrangement, each guide block 20 can be fixed by two pins 40, which provides good stability and can withstand greater test pressure.

[0053] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 In two adjacent guide blocks 20, a limiting groove 201 of one guide block 20 is positioned opposite to a limiting groove 201 of the other guide block 20, and both engage with the same pin 40. This arrangement allows for limiting the two guide blocks 20 with a single pin 40, reducing the number of pins 40 and enabling a more compact arrangement of the guide blocks 20, resulting in a smaller overall size of the test adapter 100.

[0054] Specifically, in this embodiment, one of the limiting grooves 201 of the middle guide block 20 is opposite to the limiting groove 201 of the guide block 20 on one side, and they share a pin 40 for limiting. The other limiting groove 201 of the middle guide block 20 is opposite to the limiting groove 201 of the guide block 20 on the other side, and they share a pin 40 for limiting. This reduces the number of pins 40 required to four, significantly reducing the size of the test adapter 100.

[0055] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A test adapter for a three-cavity Ethernet interface, the three-cavity Ethernet interface comprising an interface body and three sets of connection terminals, the interface body having a mounting groove, the three sets of connection terminals passing through the interface body and protruding relative to the bottom wall of the mounting groove, the bottom wall having three annular protrusions respectively surrounding the corresponding connection terminals, characterized in that, The test adapter includes: The mounting block is provided with a guide boss, which is used to cooperate with the side wall of the mounting groove for guidance; Three guide blocks are all inserted through the mounting block and protrude from the first end face of the guide boss. The part of the guide block that protrudes from the first end face is defined as the guide protrusion. The height of the guide protrusion is less than the distance between the annular protrusion and the groove of the mounting groove. The three guide protrusions are respectively used to cooperate with the inner wall of the corresponding annular protrusion for guidance. Three sets of test terminals are respectively embedded in the corresponding guide blocks and are used for electrical connection with the connection terminals.

2. The test adapter according to claim 1, characterized in that, The first end face and the first side face of the guide boss are connected by a first transition cone surface.

3. The test adapter according to claim 1, characterized in that, The second end face and the second side face of the guide protrusion are connected by a second transition cone surface.

4. The test adapter according to claim 1, characterized in that, The three guide protrusions are arranged at intervals on the first end face.

5. The test adapter according to claim 1, characterized in that, The second end face of the guide protrusion has a connecting guide cone hole and a mounting hole. The test terminal is mounted in the mounting hole, and the guide cone hole is used to guide the connection terminal.

6. The test adapter according to claim 1, characterized in that, The test terminal includes a female terminal and a male terminal. The female terminal is used to make an electrical connection with the connection terminal, and the male terminal is used to make an electrical connection with the signal cable.

7. The test adapter according to claim 1, characterized in that, The test adapter also includes a pin, the mounting block has an assembly hole, a portion of the guide block is accommodated in the assembly hole, and is fixed in the assembly hole by the pin.

8. The test adapter according to claim 7, characterized in that, The mounting block has a pin hole that communicates with the assembly hole. The guide block has a limiting groove on its outer periphery. The pin engages with the pin hole and extends into the limiting groove to restrict the guide block from moving along the assembly hole.

9. The test adapter according to claim 8, characterized in that, The guide block has two limiting grooves, which are arranged opposite to each other.

10. The test adapter according to claim 9, characterized in that, In two adjacent guide blocks, a limiting groove of one guide block is disposed opposite to a limiting groove of the other guide block and cooperates with the same pin.

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