CN219677717U - Rebound signal terminal and device applied to test fixture - Google Patents
Rebound signal terminal and device applied to test fixture Download PDFInfo
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- CN219677717U CN219677717U CN202320857008.4U CN202320857008U CN219677717U CN 219677717 U CN219677717 U CN 219677717U CN 202320857008 U CN202320857008 U CN 202320857008U CN 219677717 U CN219677717 U CN 219677717U
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 239000012212 insulator Substances 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a rebound signal terminal and a rebound signal terminal device applied to a test fixture, wherein the signal terminal is arranged in a placing cavity on an interface board, the signal terminal comprises a jack with cylindrical blind holes at two ends, an insulator is sleeved outside the jack, a shell is sleeved outside the insulator, a shell head section, a shell middle section and a shell tail section are sequentially arranged on the shell in the direction from the front end of the jack to the rear end of the jack, cavities are formed in the shell middle section and the inner surface of the placing cavity, a spring is arranged on the outer side wall of the shell middle section in the cavity, the head end of the spring faces the front end of the jack, and the tail end of the spring faces the rear end of the jack.
Description
Technical Field
The utility model relates to the technical field related to test fixtures, in particular to a rebound signal terminal and a rebound signal terminal device applied to the test fixture.
Background
At present, a signal pin is usually arranged on a test fixture, when the test fixture is used for testing, the signal pin is required to be connected with corresponding signal terminals on an adapter plate in a one-to-one correspondence manner, and the connection mode is that a male head and a female head form elastic clamping sleeve joint, wherein the female head is arranged inside an interface plate for the purpose of stable plug-in process, and in particular, a placing cavity for placing the signal terminals is arranged on the interface plate.
When a technician forcibly inserts the test fixture into the signal terminal, if the force is large, the signal terminal may be caused to move toward the rear surface of the interface board, and the housing of the signal terminal is connected with the inner surface of the placement cavity, which may cause damage to the housing of the signal terminal.
Disclosure of Invention
The utility model aims to provide a rebound signal terminal and a rebound signal terminal device applied to a test fixture, wherein a shell of the rebound signal terminal is sequentially provided with a shell head section, a shell middle section and a shell tail section in the direction from the front end of a jack to the rear end of the jack, the shell middle section and the inner surface of a placing cavity are provided with cavities, a spring is arranged on the outer side wall of the shell middle section in the cavities, the head end of the spring faces the front end of the jack, the tail end of the spring faces the rear end of the jack, and a stop block for limiting rebound of the spring is arranged in the cavities, so that the problem that the shell is damaged when a technician forcefully inserts the test fixture into the signal end is solved, and the problem that the position of the signal terminal is moved due to rebound of the spring when the technician pulls out the test fixture from the signal end is solved.
In order to solve the technical problems, the utility model adopts the following scheme:
the rebound signal terminal is arranged in a placing cavity on an interface board, the signal terminal comprises a jack with cylindrical blind holes at two ends, an insulator is sleeved outside the jack, a shell is sleeved outside the insulator, a shell head section, a shell middle section and a shell tail section are sequentially arranged on the shell from the front end of the jack to the rear end of the jack,
the shell middle section has the cavity with the internal surface in placing the chamber, be provided with the spring on the shell middle section lateral wall in the cavity, the head end of spring is towards the jack front end, the tail end of spring is towards the socket rear end.
Further, the outer side wall of the middle section of the shell is cylindrical, the spring tightly surrounds the outer side wall, and the spring is cylindrical.
Further, a stop block connected with the inner surface of the placement cavity is arranged in the cavity.
Further, the distance between the stop block and the axis of the head end of the shell is larger than the distance between the tail end of the spring and the axis of the head end of the shell, and one end of the stop block is abutted against the tail end of the spring.
Further, the outer side wall of the shell tail section is cylindrical, a compression plane tangential to the shell tail section is arranged on the outer side wall of the shell tail section, the distance between the compression plane and the axis of the shell tail section is smaller than the radius of the shell tail section, and the length of the compression plane extending from the tail end of the shell along the axis extending direction of the shell tail section is smaller than the total length of the shell tail section.
Further, the shell is arranged perpendicular to the front surface of the interface board.
Further, the inner surface of the placing cavity is connected with the first section of the shell, and the inner surface of the placing cavity is connected with the tail section of the shell.
The utility model provides a device for test fixture, includes the movable plate, with place the corresponding counterpoint module of test fixture on the movable plate, be equipped with the signal contact pin on the test fixture, counterpoint module towards the movable plate one side on the level be provided with at least one be applied to test fixture's resilience signal terminal, under the state of installing test fixture on the movable plate, signal terminal and corresponding signal contact pin parallel arrangement.
The utility model has the beneficial effects that:
because the test fixture is usually provided with the signal contact pins, the signal contact pins are required to be connected with corresponding signal terminals on the adapter plate in a one-to-one correspondence manner when the test fixture is used for testing, and the connection mode is that a male head and a female head form elastic clamping and sleeving, wherein the female head is arranged inside the interface plate for the purpose of stable plugging process, and in particular, a placing cavity for placing the signal terminals is arranged on the interface plate.
When a technician inserts the test fixture into the signal terminals with force, if the force is greater, the signal terminals may be moved toward the back of the interface board, causing damage to the housing of the signal terminals.
Therefore, the utility model provides a rebound signal terminal and a rebound signal terminal device applied to a test fixture, wherein a shell of the rebound signal terminal is sequentially provided with a shell head section, a shell middle section and a shell tail section in the direction from the front end of a jack to the rear end of the jack, the shell middle section and the inner surface of a placing cavity are provided with cavities, a spring is arranged in the cavity on the outer side wall of the shell middle section, the head end of the spring faces the front end of the jack, and the tail end of the spring faces the rear end of the jack.
When a technician inserts the test fixture into the signal terminal forcefully, the signal terminal is subjected to pressure moving towards the back surface of the interface board, so that the spring is compressed, abrasion of a tool cannot be caused, and a stop block is arranged behind the spring, so that the signal terminal cannot move backwards for a long distance, and the front end of the signal terminal and the interface board are damaged.
And when the technician pulls out the signal terminal with the test fixture by force, because the spring has resilience force, so can make signal terminal to the front removal of interface board, but the resilience of spring can be restricted to the dog, makes the spring rebound can not surpass original position, can not lead to the wearing and tearing of shell and placing the chamber.
Drawings
FIG. 1 is a schematic cross-sectional view of a signal terminal according to the present utility model;
FIG. 2 is a schematic top view of a signal terminal according to the present utility model;
FIG. 3 is a schematic cross-sectional view of a signal terminal disposed in an interface board according to the present utility model;
reference numerals illustrate: 1-interface board, 11-placing cavity, 2-signal terminal, 21-jack, 22-insulator, 23-shell, 231-shell first section, 232-shell middle section, 233-shell tail section, 3-spring, 4-block.
Detailed Description
In order that those skilled in the art will better understand the technical scheme of the present utility model, the following further details the present utility model with reference to the accompanying drawings and detailed description, but the embodiments of the present utility model are not limited thereto.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model is described in detail below by reference to the attached drawings and in connection with the embodiments:
because the test fixture is usually provided with the signal pins, the signal pins are required to be connected with the corresponding signal terminals 2 on the adapter plate in a one-to-one correspondence manner when the test fixture is used for testing, and the connection mode is that a male head and a female head form elastic clamping and sleeving, wherein the female head is arranged inside the interface plate 1 for the purpose of stable plugging process, and in particular, a placing cavity 11 for placing the signal terminals 2 is arranged on the interface plate 1.
When a technician forcibly inserts the test fixture into the signal terminal 2, if the force is large, the signal terminal 2 may be caused to move toward the rear surface of the interface board 1, and the housing 23 of the signal terminal 2 is connected with the inner surface of the placement cavity 11, possibly causing damage to the housing 23 of the signal terminal 2. Therefore, the utility model provides a rebound signal terminal 2 and a device applied to a test fixture.
Example 1
As shown in fig. 1, 2 and 3, the rebound signal terminal 2 provided by the utility model is arranged on an interface board 1, and in particular, a placing cavity 11 for placing the signal terminal 2 is arranged on the interface board 1. The signal terminal 2 comprises a signal terminal 2 and a jack 21, wherein the two ends of the jack 21 are provided with cylindrical blind holes, an insulator 22 is sleeved outside the jack 21, a shell 23 is sleeved outside the insulator 22, and a shell head section 231, a shell middle section 232 and a shell tail section 233 are sequentially arranged on the shell 23 from the front end of the jack 21 towards the rear end of the jack 21.
The shell middle section 232 and the inner surface of the placing cavity 11 are provided with a cavity, a spring 3 is arranged on the outer side wall of the shell middle section 232 in the cavity, the head end of the spring 3 faces the front end of the jack 21, and the tail end of the spring 3 faces the rear end of the jack.
Preferably, the outer side wall of the middle section 232 of the housing is cylindrical, the spring 3 tightly surrounds the outer side wall, and the spring 3 is cylindrical.
Also, since the spring 3 has a resilient force, the present utility model also provides a stopper 4 fitted to the spring 3, the stopper 4 being provided on an inner surface within the cavity for restricting the position of the spring 3, the stopper 4 being provided at the spring tail end.
Preferably, a stop 4 is provided in the cavity, which is connected to the inner surface of the placement cavity 11.
Preferably, the distance between the stop 4 and the axis of the head end of the housing 23 is greater than the distance between the tail end of the spring 3 and the axis of the head end of the housing 23, and one end of the stop 4 abuts against the tail end of the spring 3.
When a technician forcibly inserts the test fixture into the signal terminal 2, the signal terminal 2 is pressed against the back surface of the interface board 1, so that the spring 3 is compressed, abrasion of tools is not caused, and a stopper 4 is provided behind the spring 3, so that the signal terminal 2 is not moved backwards for a long distance, and damage is caused to the front end of the signal terminal 2 and the interface board 1.
When the technician pulls out the signal terminal 2 from the test jig by force, the spring 3 has a repulsive force, so that the signal terminal 2 moves toward the front surface of the interface board 1, but the stopper 4 restricts the spring 3 from rebounding, so that the spring 3 does not rebound beyond the original position, and abrasion of the housing 23 and the placement chamber 11 is not caused.
Preferably, the outer side wall of the housing tail section 233 is cylindrical, a pressing plane tangential to the housing tail section 233 is disposed on the outer side wall of the housing tail section 233, the distance between the pressing plane and the axis of the housing tail section 233 is smaller than the radius of the housing tail section 233, and the length of the pressing plane extending from the tail end of the housing 23 along the extending direction of the axis of the housing tail section 233 is smaller than the total length of the housing tail section 233.
Example 2
The device applied to the test fixture is characterized by comprising a movable plate and an alignment module corresponding to the test fixture placed on the movable plate, wherein signal pins are arranged on the test fixture, at least one rebound signal terminal 2 applied to the test fixture is horizontally arranged on one surface of the alignment module, facing the movable plate, of the alignment module, and the signal terminal 2 and the corresponding signal pins are arranged in parallel under the state that the test fixture is installed on the movable plate.
Preferably, the housing 23 is disposed perpendicularly to the front surface of the interface board 1. The function is that, because the signal pin on the test fixture is perpendicular to the plane, the surface of the interface board 1 provided with the signal terminal 2 can be parallel to the surface of the test fixture provided with the signal pin, so that the test fixture can be in close contact with the interface board 1 after the signal pin is completely jointed with the signal terminal 2.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present utility model, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the utility model, and are also considered to be within the scope of the utility model.
Claims (8)
1. Be applied to rebound signal terminal of test fixture, signal terminal (2) set up in placing chamber (11) on interface board (1), signal terminal (2) are including jack (21) that both ends have cylindric blind hole, jack (21) overcoat is equipped with insulator (22) overcoat is equipped with shell (23), and shell (23) have set gradually shell first section (231), shell middle section (232), shell tail section (233) in the direction of jack (21) rear end from jack (21) front end, a serial communication port, shell middle section (232) have the cavity with the internal surface of placing chamber (11), be provided with spring (3) on shell middle section (232) lateral wall in the cavity, the head end of spring (3) is towards jack (21) front end, the tail end of spring (3) is towards the jack rear end.
2. A rebound signal terminal for a test fixture according to claim 1, characterised in that the outer side wall of the housing middle section (232) is cylindrical, the spring (3) is tightly wound around the outer side wall, and the spring (3) is cylindrical.
3. Rebound signal terminal for test fixture according to claim 2, characterised in that a stop (4) is provided in the cavity in connection with the inner surface of the placement cavity (11).
4. A rebound signal terminal for a test fixture according to claim 3, characterised in that said stop (4) is located at a greater distance from the head axis of the housing (23) than the tail end of said spring (3) is located at the head axis of the housing (23), one end of said stop (4) being in abutment with the tail end of the spring (3).
5. The rebound signal terminal applied to the test fixture according to claim 1, wherein the outer side wall of the housing tail section (233) is cylindrical, a pressing plane tangential to the housing tail section (233) is arranged on the outer side wall of the housing tail section (233), the distance between the pressing plane and the axis of the housing tail section (233) is smaller than the radius of the housing tail section (233), and the length of the pressing plane extending from the tail end of the housing (23) along the extending direction of the axis of the housing tail section (233) is smaller than the total length of the housing tail section (233).
6. A rebound signal terminal for a test fixture according to claim 1, characterised in that the housing (23) is arranged perpendicularly to the front face of the interface board (1).
7. A rebound signal terminal for a test fixture according to claim 5, characterised in that the inner surface of the placement cavity (11) is connected to the housing head section (231) and the inner surface of the placement cavity (11) is connected to the housing tail section (233).
8. The device applied to the test fixture is characterized by comprising a movable plate and an alignment module corresponding to the test fixture placed on the movable plate, wherein signal pins are arranged on the test fixture, at least one rebound signal terminal applied to the test fixture according to any one of claims 1-7 is horizontally arranged on one surface of the alignment module facing the movable plate, and the signal terminal (2) is arranged in parallel with the corresponding signal pin in the state that the test fixture is installed on the movable plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320857008.4U CN219677717U (en) | 2023-04-18 | 2023-04-18 | Rebound signal terminal and device applied to test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320857008.4U CN219677717U (en) | 2023-04-18 | 2023-04-18 | Rebound signal terminal and device applied to test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677717U true CN219677717U (en) | 2023-09-12 |
Family
ID=87928151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320857008.4U Active CN219677717U (en) | 2023-04-18 | 2023-04-18 | Rebound signal terminal and device applied to test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219677717U (en) |
-
2023
- 2023-04-18 CN CN202320857008.4U patent/CN219677717U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |