CN210514370U

CN210514370U - High-voltage testing tool for switching power supply

Info

Publication number: CN210514370U
Application number: CN201920800107.2U
Authority: CN
Inventors: 唐金平; 刘林生
Original assignee: Shenzhen Xindaxin Electronic Co Ltd
Current assignee: Shenzhen Xindaxin Electronic Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-05-12
Anticipated expiration: 2029-05-29

Abstract

The utility model is suitable for the technical field of PCB testing, and provides a switching power supply high-voltage testing tool which mainly comprises a box, an AC terminal component, a testing plate component, a gear rack component, a wedge component, a positioning component and a HIPOT probe; after the PCB is placed on the PCB placing position, the AC terminal assembly can be driven to move through the driving piece, so that the contact conduction between the AC terminal assembly and the PCB9 is realized, and meanwhile, the AC terminal assembly can push the PCB fixing plate to move, so that the contact conduction between the PCB and the contact terminal of the test board is realized; and, through the slide wedge subassembly, the driving piece can drive the HIPOT probe and shift up contact PCB and drive the second slider and remove and stretch into the top of PCB placement position in order to hold spacing PCB from vertical direction pressure, and PCB can be restricted jointly by horizontal locating part and vertical locating part, and positioning accuracy is high, easy operation, and efficiency of software testing is high.

Description

High-voltage testing tool for switching power supply

Technical Field

The utility model belongs to the technical field of the PCB test, concretely relates to switching power supply high pressure test fixture.

Background

With the economic development and social progress, electronic products are more and more widely applied, and generally include a PCB board and the like, on which a series of electronic components and the like, such as a switching power supply module and the like, are mounted, and when the PCB board is produced, a series of tests need to be performed on the PCB, for example, a test on the conduction condition of each circuit of the PCB board, and a test on the working condition of each electronic device, for example, a test on the switching power supply module, and a high-voltage test needs to be performed on the PCB board to detect whether the performance and the like of the electronic device meet production standards.

When the existing PCB is produced, particularly the PCB with the switch power supply module is not tested by a professional testing tool, the positioning precision is poor during testing, the operation is inconvenient, and the testing efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the above-mentioned prior art, provide a switching power supply high voltage test frock.

The utility model discloses a realize like this: switching power supply high voltage test frock, it includes:

the upper end of the box is open, a PCB fixing plate capable of moving along the left and right directions is arranged at the opening, and a PCB placing position is formed on the PCB fixing plate;

the AC terminal assembly is arranged at the opening and positioned on the right side of the PCB fixing plate, and comprises an AC contact terminal and an AC fixing block for fixing the AC contact terminal, and the AC fixing block can be movably arranged at the opening;

the test board assembly comprises a test board contact terminal arranged on the left side of the opening;

the gear rack assembly comprises a gear shaft, a gear arranged on the gear shaft, a rack matched with the gear and a driving piece for driving the gear shaft to rotate, and the rack is connected with the AC fixed block;

the inclined wedge assembly comprises an inclined wedge connected with the AC fixed block and a first sliding block which is matched with the inclined wedge and can move up and down;

the positioning assembly comprises a plurality of horizontal limiting parts which are constructed on the side edge of the PCB placing position and used for limiting the PCB in the horizontal direction and a plurality of vertical limiting parts which are arranged on the side edge of the PCB installing position and used for limiting the PCB in the vertical direction, the vertical limiting parts comprise second sliding blocks which are matched with the first sliding blocks to form a wedge transmission mechanism, and the first sliding blocks can move up and down to drive the second sliding blocks to be close to or far away from the PCB placing position; and

the HIPOT probe is arranged on the first sliding block;

wherein, a first through hole for the first slider to pass through and a second through hole for the HIPOT to pass through are configured on the PCB fixing plate.

As a preferred scheme of the utility model, still include a plurality of guides, every the guide includes guiding axle and linear bearing, the one end of guiding axle is passed through linear bearing with first slider is connected, the other end of guiding axle with the last inner wall fixed connection of case.

As a preferable aspect of the present invention, the case is provided with guide grooves for guiding the PCB fixing plate and the AC terminal assembly to move left and right in the left-right direction.

As a preferred aspect of the present invention, a travel switch for limiting a moving travel of the PCB fixing plate is configured in the case.

As a preferable scheme of the utility model, the model of travel switch is LXP 1-303.

As a preferred scheme of the utility model, be equipped with on the PCB fixed plate with the PCB is placed the position adjacent being used for conveniently getting of putting PCB and is got the groove of putting.

As a preferable aspect of the present invention, the box is configured with a wire outlet for facilitating the passage of the wire.

As a preferred aspect of the present invention, the vertical position-limiting member further includes a limiting cover for limiting and guiding the second slider of the circumferential cover.

As a preferred scheme of the utility model, the driving piece is the rocker, the one end of gear shaft is stretched out the box and with the rocker is connected.

As a preferred scheme of the utility model, it is a plurality of horizontal locating part along a central line symmetric distribution of position is placed to PCB, it is a plurality of vertical locating part along a central line symmetric distribution of position is placed to PCB.

Compared with the prior art, the switching power supply high-voltage testing tool has the advantages that after the PCB is placed on the PCB placing position, the AC terminal assembly can be driven to move through the driving piece, so that the AC terminal assembly is in contact conduction with the PCB9, meanwhile, the AC terminal assembly can push the PCB fixing plate to move, and the PCB is in contact conduction with the contact terminal of the testing plate; and, through the slide wedge subassembly, the driving piece can drive the HIPOT probe and shift up contact PCB and drive the second slider and remove and stretch into the top of PCB placement position in order to hold spacing PCB from vertical direction pressure, and PCB can be restricted jointly by horizontal locating part and vertical locating part, and positioning accuracy is high, easy operation, and efficiency of software testing is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention.

Fig. 1 is a schematic structural diagram of a switching power supply high voltage testing tool provided by an embodiment of the present invention at a viewing angle;

fig. 2 is a schematic structural diagram of the switching power supply testing tool provided in the embodiment of the present invention at another view angle;

fig. 3 is a schematic structural front view of a high-voltage testing tool for a switching power supply provided in an embodiment of the present invention;

fig. 4 is a schematic structural overhead view of a high-voltage testing tool for a switching power supply provided in an embodiment of the present invention;

some of the reference numerals describe:

1. a tank;

2. an AC terminal assembly;

3. testing the plate assembly;

4. a rack and pinion assembly;

5. a cam assembly;

6. a positioning assembly;

7. a HIPOT probe;

8. a guide member;

9、PCB；

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

Referring to fig. 1-4, it can be understood that the directions and positions of the switching power supply high voltage testing tool of the present invention, such as up, down, left, right, vertical, horizontal, etc., are described with reference to fig. 1 and 3, wherein fig. 1 is a schematic structural view of the switching power supply high voltage testing tool provided in this embodiment at a viewing angle; fig. 2 is a schematic structural diagram of the switching power supply high voltage test fixture provided in this embodiment at another view angle; fig. 3 is a schematic structural front view of the switching power supply high-voltage testing tool provided in this embodiment; fig. 4 is a schematic structural plan view of the switching power supply high voltage testing tool provided in this embodiment; in which, for the sake of drawing effect, a PCB9 is placed at the PCB placing position 121 in each of fig. 1 to 4.

This switching power supply high voltage test frock, it includes:

the upper end of the box 1 is open, a PCB fixing plate 12 which can move along the left and right direction is arranged at the opening 11, and a PCB placing position 121 is formed on the PCB fixing plate 12;

an AC terminal assembly 2 disposed at the opening 11 and located at the right side of the PCB fixing plate 12, and including an AC contact terminal 21 and an AC fixing block 22 fixing the AC contact terminal 21, the AC fixing block 22 being movably disposed at the opening 11;

a test board assembly 3 including a test board contact terminal 31 provided on the left side of the opening 11;

the gear rack assembly 4 comprises a gear shaft 41, a gear 42 arranged on the gear shaft 41, a rack 43 matched with the gear 42 and a driving piece for driving the gear shaft 41 to rotate, wherein the rack 43 is connected with the AC fixed block 22;

the wedge component 5 comprises a wedge 51 connected with the AC fixing block 22 and a first sliding block 52 which is matched with the wedge 51 and can move up and down;

the positioning assembly 6 comprises a plurality of horizontal limiting parts 61 which are constructed on the side edge of the PCB placing position 121 and used for limiting the PCB in the horizontal direction and a plurality of vertical limiting parts 62 which are arranged on the side edge of the PCB installing position 121 and used for limiting the PCB in the vertical direction, wherein the vertical limiting parts 62 comprise second sliding blocks 621 which are matched with the first sliding blocks 52 to form a wedge transmission mechanism, and the first sliding blocks 52 can move up and down to drive the second sliding blocks 621 to be close to or far away from the PCB placing position 121; and

a HIPOT probe 7 provided on the first slider 52;

the PCB fixing plate 12 is configured with a first through hole for the first slider 52 to pass through and a second through hole for the HIPOT probe 7 to pass through.

In the above, the switching power supply high voltage testing tool mainly includes a box 1, an AC terminal assembly 2, a testing board assembly 3, a rack and pinion assembly 4, a wedge assembly 5, a positioning assembly 6, and a HIPOT probe 7, wherein the upper end of the box 1 is open, a PCB fixing plate 12 capable of moving in the left-right direction is disposed at the opening 11, a PCB placing position 121 is disposed on the PCB fixing plate 12,

furthermore, after the PCB9 is placed at the PCB placement position 121, the driving member can drive the gear shaft 41 to rotate, and further, the gear 42 is matched with the rack 43 to drive the AC terminal assembly 2 to move towards the PCB fixing plate 12 (i.e. move from right to left), and further, the AC contact terminal 21 can be connected and conducted with the contact terminal of the switching power supply on the PCB6, and the AC terminal assembly 2 can also push the PCB fixing plate 12 to move from right to left, so that the PCB6 is in contact and conducted with the test board contact terminal 31 in the test board assembly 3;

and, after PCB6 placed in PCB placement position 121, when driving piece drives AC terminal assembly 2 to move from right to left, AC fixed block 22 can drive slide wedge 51 in slide wedge assembly 5 to move left, first slider 52 can move up under the push of slide wedge 51, and then drive HIPOT probe 7 to move up to contact PCB6, and first slider 52 and second slider 621 can constitute a slide wedge transmission mechanism, and then first slider 52 moves up, can drive second slider 621 to be close to PCB placement position 121, and then the tip that second slider 621 is close to PCB placement position can stretch into the top that places PCB placement position 121 in order to hold spacing PCB9 from the vertical direction.

In addition, specifically, the lateral side of the PCB placement position 121 is further provided with a horizontal limiting member 61, and after the PCB is placed on the PCB placement position 121, the horizontal limiting member 61 and the vertical limiting member 62 can limit the position together, so that the positioning accuracy is high.

Furthermore, in summary, in the high voltage testing tool for a switching power supply, after the PCB9 is placed on the PCB placing position 121, the driving member can drive the AC terminal assembly 2 to move, so as to achieve the contact and conduction between the AC terminal assembly 2 and the PCB9, and meanwhile, the AC terminal assembly 2 can push the PCB fixing plate 12 to move, so as to achieve the contact and conduction between the PCB9 and the contact terminal 31 of the testing board; and, through slide wedge subassembly 5, the driving piece can drive the HIPOT probe and move up to contact PCB9 and drive second slider 621 and move and stretch into the top that the position 121 was placed to the PCB and hold spacing PCB9 with the pressure from vertical direction, and PCB9 can be restricted by horizontal locating part 61 and vertical locating part 62 jointly promptly, and positioning accuracy is high, easy operation, and efficiency of software testing is high.

In the above, it can be understood that, the switching power supply testing tool, the inside of the box 1 of the switching power supply testing tool is further provided with the power supply, the electronic devices such as the test circuit board, etc., the AC contact terminal 21, the test board contact terminal 31 and the HIPOT probe 7 can be electrically connected with the test circuit board, that is, after the AC contact terminal 21, the test board contact terminal 31 and the HIPOT probe 7 are contacted to conduct the PCB9 to be tested, the detection signal (current magnitude or level) can be transmitted to the test circuit board through the AC contact terminal 21, the test board contact terminal 31 and the HIPOT probe 7, the test circuit board can be further provided with the control chip, etc., the control chip can be a single chip, such as STM32F103C8T6, etc., since the technical solution of the embodiment only relates to the innovation in the mechanical structure (such as the positioning of PCB9, etc.), here, the switching power supply high voltage testing tool can be used for detecting the PCB9, and the other modules thereof can be applied, since this embodiment does not relate to the content of this portion, it is not described herein.

As a preferred scheme of the utility model, still include a plurality of guides 8, every guide 8 includes guiding axle 81 and linear bearing 82, and linear bearing 82 is passed through to guiding axle 81's one end and is connected with first slider 52, and guiding axle 81's the other end and the last inner wall fixed connection of case 1.

In the foregoing, specifically, the first slider 52 can move up and down along the guide shaft 81, so that the left and right offset of the first slider 52 in the up and down moving process can be reduced, and the first slider 52 can move up and down smoothly.

As a preferable embodiment of the present invention, the box 1 is provided with a guide groove 13 for guiding the left and right movement of the PCB fixing plate 12 and the AC terminal assembly 2 in the left and right directions.

In the above, specifically, the guide groove 13 may play a role of guiding and limiting the PCB fixing plate 12 and the AC terminal assembly 2, that is, two side ends of the PCB fixing plate 12 and the AC fixing block 22 may be clamped in the guide groove 13, and then the PCB fixing plate 12 and the AC fixing block 22 may move along the guide groove 13, of course, in other embodiments, the guide groove 13 may also be replaced by other structures, for example, a guide shaft structure similar to the guide member 8, and further, because the principle and structure thereof are similar, no further description is provided herein.

As a preferred aspect of the present invention, a travel switch 14 for limiting the moving travel of the PCB fixing plate 12 is configured in the case 1, and specifically, the type of the travel switch 14 may be LXP 1-303.

In the foregoing, specifically, travel switch 14 can guarantee the safe removal of PCB fixed plate 12, avoids PCB fixed plate 12 to exceed the stroke scope, sets up this travel switch 14 at the maximum safe displacement position of PCB fixed plate 12 in case 1 promptly, and then when PCB fixed plate 12 removed this position, PCB fixed plate 12 collided travel switch 14, and travel switch 14 can spacing PCB fixed plate 12 this moment, still can send prompt signal in order to indicate PCB fixed plate 12 in order to remove to this maximum safe displacement position.

As a preferred scheme of the utility model, be equipped with on the PCB fixed plate 12 and place the position 121 adjacent with the PCB and be used for conveniently getting get the groove 122 of getting of putting PCB 9.

In the foregoing, specifically, the picking and placing groove 122 may receive therein a grabbing unit of the PCB9, such as a palm of an operator, so as to facilitate picking and placing of the PCB 9.

As a preferred embodiment of the present invention, the box 1 is configured with a wire outlet 15 for facilitating the passage of a wire.

In the above, the outlet 15 can facilitate the connection between the devices inside the box 1 and the external wires.

As a preferred aspect of the present invention, the vertical position-limiting member 62 further includes a position-limiting cover 622 for limiting and guiding the second sliding block 621, and the second sliding block 621 covers the position-limiting cover 622 circumferentially.

In the above, specifically, in this embodiment, the moving direction of the second slider 621 is taken as the axial direction, the circumferential direction is perpendicular to the axial direction, that is, the circumferential direction of the second slider 621 is covered by the limiting cover 622 for limitation, and then the limiting cover 622 can guide the second slider 621 to move towards the direction of the PCB placement position 121, and can prevent the second slider 621 from being separated from the PCB fixing plate 12, thereby ensuring the structural reliability of the second slider 621 after installation.

As a preferred embodiment of the present invention, the driving member is a rocker 44, and one end of the gear shaft 41 extends out of the box 1 and is connected to the rocker 44.

In the foregoing, specifically, the rotation of the gear shaft 41 can be realized through the driving member, and then the gear 42 is driven to rotate, so as to realize the up-down movement of the first sliding block 52, in this embodiment, the driving member can adopt the rocker 44, and then the operator can realize the rotation of the gear shaft 41 by operating the rocker 44.

As a preferred scheme of the utility model, a plurality of horizontal locating part 61 place a central line symmetric distribution of position 121 along PCB, and a plurality of vertical locating part 62 place a central line symmetric distribution of position 121 along PCB.

In the above, specifically, the plurality of horizontal position-limiting members 61 may be symmetrically disposed along a central line of the PCB placement position 121, and then a plurality of lateral sides of the PCB9 may be constrained and limited by the horizontal position-limiting members 61 in the horizontal direction, that is, the plurality of horizontal position-limiting members 61 may jointly horizontally limit the PCB9, so that the constraining and positioning efficiency is good; a plurality of vertical locating parts 62 are along a central line symmetric distribution of PCB placement position 121, and then two sides of PCB9 can be held to the tip of second slider 621 in a plurality of locating parts 62 pressure, thereby can reach the positioning action, guarantee the positioning accuracy of PCB9 in PCB placement position 121, and can make PCB9 atress even (that the pressure that the tip of second slider 621 in a plurality of vertical locating parts 62 that receive on PCB9 was applyed distributes comparatively evenly), guarantee the positioning accuracy of PCB9 and the reliability after the location, can avoid in the test procedure, PCB9 appears upwarping and the circumstances such as skew.

In summary, in the switching power supply high voltage testing tool provided by this embodiment, after the PCB9 is placed on the PCB placing position 121, the driving member drives the AC terminal assembly 2 to move, so as to achieve the contact and conduction between the AC terminal assembly 2 and the PCB9, and meanwhile, the AC terminal assembly 2 can push the PCB fixing plate 12 to move, so as to achieve the contact and conduction between the PCB9 and the contact terminal 31 of the testing board; and, through slide wedge subassembly 5, the driving piece can drive the HIPOT probe and move up to contact PCB9 and drive second slider 621 and move and stretch into the top that the position 121 was placed to the PCB and hold spacing PCB9 with the pressure from vertical direction, and PCB9 can be restricted by horizontal locating part 61 and vertical locating part 62 jointly promptly, and positioning accuracy is high, easy operation, and efficiency of software testing is high.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The geometric position relations of the horizontal, vertical, concentric and the like in the utility model are only limited under ideal conditions, and considering multiple actual conditions of technology, processing precision, cost and technical effect, the deviation of 5 percent in the field is allowable, and the geometric position relations are also limited in the invention.

Meanwhile, the following points need to be explained:

(1) unless otherwise defined, in the embodiments and drawings of the present invention, the same reference numerals represent the same meanings.

(2) In the drawings of the embodiments of the present invention, only the structures related to the embodiments of the present invention are referred to, and other structures may refer to general designs.

(3) In the drawings, which are used to describe embodiments of the invention, the thickness of layers or regions are exaggerated for clarity. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.

(4) Features of the present invention may be combined with each other in the same embodiment and in different embodiments without conflict.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Switching power supply high voltage test frock, its characterized in that includes:

the HIPOT probe is arranged on the first sliding block;

2. The switching power supply high voltage testing tool according to claim 1, further comprising a plurality of guide members, wherein each guide member comprises a guide shaft and a linear bearing, one end of each guide shaft is connected with the first sliding block through the linear bearing, and the other end of each guide shaft is fixedly connected with the upper inner wall of the box.

3. The switching power supply high voltage test tool according to claim 1, wherein the case is provided with guide grooves for guiding the PCB fixing plate and the AC terminal assembly to move left and right in left and right directions.

4. The switching power supply high voltage testing tool according to claim 1, wherein a travel switch for limiting the moving travel of the PCB fixing plate is constructed in the box.

5. The switching power supply high voltage test tool set forth in claim 4, wherein the travel switch is of type LXP 1-303.

6. The switching power supply high voltage test tool according to claim 1, wherein a pick-and-place groove for conveniently picking and placing the PCB is arranged on the PCB fixing plate and is adjacent to the PCB placing position.

7. The switching power supply high voltage testing tool according to claim 1, wherein an outlet for facilitating a line to pass through is configured on the box.

8. The switching power supply high voltage test tool according to claim 1, wherein the vertical limiting member further comprises a limiting cover which circumferentially covers the second slider and is used for limiting and guiding the second slider.

9. The switching power supply high voltage testing tool according to claim 1, wherein the driving member is a rocker, and one end of the gear shaft extends out of the box body and is connected with the rocker.

10. The switching power supply high voltage test tool according to claim 1, wherein the plurality of horizontal limiting members are symmetrically distributed along a center line of the PCB placement position, and the plurality of vertical limiting members are symmetrically distributed along a center line of the PCB placement position.