CN213633761U

CN213633761U - DC/DC power module testing device

Info

Publication number: CN213633761U
Application number: CN202022534793.9U
Authority: CN
Inventors: 李志宏
Original assignee: Xi'an Guande Photoelectric Technology Co ltd
Current assignee: Xi'an Guande Photoelectric Technology Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-07-06
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a DC/DC power module testing arrangement relates to power module test equipment technical field, which comprises an outer shell, the connecting cable with compress tightly the subassembly, it includes the drive shaft to compress tightly the subassembly, compact heap and compression leg, a plurality of jacks that are used for grafting power module pin have on the shell, metal shrapnel has in the jack, metal shrapnel and connecting cable electricity are connected, when the drive shaft rotates under the effect of external force through compact heap drive compression leg extrusion metal shrapnel, make metal shrapnel tightly press on the pin, the stability of electricity connection has not only been promoted, and whole in-process pin and metal shrapnel do not have sliding friction, the wearing and tearing of metal shrapnel have been reduced, and service life is prolonged.

Description

DC/DC power module testing device

Technical Field

The utility model relates to a power module test equipment technical field, in particular to DC/DC power module testing arrangement.

Background

At present, various electrical equipment uses a modular DC/DC power supply, and the DC/DC power supply module can boost or reduce the voltage of input direct current to be used by electronic devices with different requirements.

The DC/DC power supply module needs to be subjected to quality testing before leaving a factory, at present, most of the DC/DC power supply modules to be tested are plugged on the switching device after the switching device is connected with a testing instrument, and the testing instrument can test the power supply module through the switching device. However, the adaptor device inevitably generates abrasion after being plugged in a large amount, which causes the stability of the electrical connection with the power module to be reduced, and causes adverse effects on the normal test of the power module.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a DC/DC power module testing arrangement for solve the problem that exists among the prior art.

The utility model provides a DC/DC power module testing device, which comprises a shell, a connecting cable and a pressing component, wherein the top surface of the shell is provided with a plurality of jacks;

the pressing assembly comprises a handle, a driving shaft, a plurality of pressing blocks and a pressing rod, the driving shaft is transversely and rotatably arranged in the shell, one end of the driving shaft penetrates through the side wall of the shell and extends out of the shell, the handle is fixedly arranged at one end of the driving shaft positioned outside the shell, the number of the pressing blocks is the same as that of the jacks on the shell, and the pressing blocks are sequentially and fixedly arranged on the outer side surface of the driving shaft along the axial direction of the driving shaft;

the metal elastic sheet is arranged in the jack and electrically connected with a wire in the connecting cable, one end of the pressing rod is in contact with the pressing block, the other end of the pressing rod extends into the jack and is in contact with the metal elastic sheet, and the pressing block pushes the pressing rod to the direction close to the metal elastic sheet when rotating along with the driving rod.

The embodiment of the utility model provides an in DC/DC power module testing arrangement, which comprises an outer shell, the connecting cable with compress tightly the subassembly, it includes the drive shaft to compress tightly the subassembly, compact heap and compression bar, a plurality of jacks that are used for grafting power module pin have on the shell, metal shrapnel has in the jack, metal shrapnel and connecting cable electricity are connected, when the drive shaft rotates under the effect of external force through compact heap drive compression bar extrusion metal shrapnel, make metal shrapnel tightly press on the pin, the stability of electricity connection has not only been promoted, and there is not sliding friction in whole in-process pin and metal shrapnel, the wearing and tearing of metal shrapnel have been reduced, and service life is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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.

Fig. 1 is a schematic view of an overall structure of a DC/DC power module testing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of a hold-down assembly;

FIG. 3 is a schematic view of the pressing assembly not pressing the metal dome;

FIG. 4 is a schematic view of a state of the pressing assembly pressing the metal dome;

fig. 5 is a schematic structural view of the switch-on assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the embodiment of the present invention provides a DC/DC power module testing apparatus, which includes a housing 100, a connection cable 300 and a pressing component, a plurality of jacks 200 have been opened on the top surface of the housing 100, the jacks 200 are used for plugging pins of a power module to be tested, when the pins of the power module are plugged in the jacks 200, the connection cable 300 is electrically connected to the power module.

Referring to fig. 2 to 4 together, the pressing assembly includes a handle 110, a driving shaft 111, a pressing block 112 and a pressing rod 113, the driving shaft 111 is transversely rotatably installed inside the casing 100, and one end of the driving shaft 111 protrudes outside the casing 100 through a side wall of the casing 100, the handle 110 is fixedly installed at one end of the driving shaft 111 outside the casing 100, so that the driving shaft 111 can be rotated inside the casing 100 by the handle 110.

The number of the pressing blocks 112 is multiple, and the number of the pressing blocks 112 is the same as that of the jacks 200 on the housing 100. It is a plurality of compact heap 112 along drive shaft 111's axial fixed mounting in proper order on drive shaft 111's lateral surface, every compact heap 112 all includes variable diameter portion and sizing portion, the diameter of variable diameter portion increases gradually for the diameter of fixed diameter portion from drive shaft 111's diameter, and the diameter change process is smooth, promptly the side of variable diameter portion is smooth curved surface, the diameter of fixed diameter portion is greater than the diameter of drive shaft 111, and the diameter of sizing portion is invariable, the big one end of variable diameter portion diameter with the fixed diameter portion links together, because the diameter of the two junctions is the same, therefore junction smooth transition.

One end of the pressing rod 113 contacts the pressing block 112, and the other end extends into the insertion hole 200. The metal elastic sheet 210 is installed in the insertion hole 200, one end of the pressing rod 113 extending into the insertion hole 200 contacts with the metal elastic sheet 210, and when the pressing rod 113 moves towards the direction close to the metal elastic sheet 210 under the driving of the pressing block 112, the pressing rod 113 presses the metal elastic sheet 210, so that the metal elastic sheet 210 is elastically deformed to be tightly pressed on a pin inserted into the insertion hole 200. In this way, there is no direct friction between the metal dome 210 and the pins, so there is less wear and the overall device has a longer life.

In this embodiment, an elastic member is connected between the pressing rod 113 and the inner side surface of the housing 100, and provides an elastic force for the pressing rod 113 to move toward the pressing block 112.

Referring to FIG. 5, the test apparatus further includes a switch-on assembly including the master platen 114, the slave platen 400, and the sets of metal contacts 420. The slave press plate 400 is rotatably connected to the inner bottom surface of the housing 100, and a coil spring providing an elastic force for the slave press plate 400 to rotate upward is provided at the connection of the slave press plate 400 and the housing 100.

The main pressure plate 114 is fixedly installed on the driving shaft 111, and the position of the main pressure plate 114 corresponds to the position of the slave pressure plate 400, so that the main pressure plate 114 can contact with the slave pressure plate 400 and can press the slave pressure plate 400 downwards when rotating downwards.

The number of the groups of the metal contacts 420 is the same as the number of the jacks 200, the number of the metal contacts 420 in each group is two, one of the metal contacts 420 is electrically connected with the metal spring piece 210 in the jack 200, and the other metal contact 420 is electrically connected with the conducting wire in the connecting cable 300, so that after the two metal contacts 420 in one group are connected, the power module is also connected with the connecting cable 300.

The slave press plate 400 is provided with a plurality of conductive plates 410 on the bottom surface thereof, the number of the conductive plates 410 is the same as the number of the sets of the metal contacts 420, and each of the conductive plates 410 is positioned right above one set of the metal contacts 420, so that when the conductive plate 410 rotates downward along with the slave press plate 400, the corresponding two contacts can be connected.

In this embodiment, the main pressure plate 114 lags behind the pressing block 112 by a certain angle in the forward rotation direction of the driving shaft 111, specifically, lags behind the sizing portion in the pressing block 112, and after the pressing rod 113 abuts against the side surface of the sizing portion, the pressing rod 113 also generates pressure on the pressing block 112 under the elastic force of the metal elastic sheet 210 and the elastic member, so that the pressing block 112 and the pressing rod 113 are kept stable under the action of friction force. When the driving shaft 111 continues to rotate for a certain angle, the pressing rod 113 continues to contact with the sizing portion of the pressing block 112, and the main pressing plate 114 presses down the auxiliary pressing plate 400, so that the metal elastic sheet 210 and the connection cable 300 are connected. The frictional force between the pressing lever 113 and the diameter portion is greater than the elastic force of the coil spring of the slave press plate 400, so that the driving shaft 111, the pressing block 112, the pressing lever 113, the master press plate 114 and the slave press plate 400 can be stably maintained in the current state even if the handle 110 is released.

After the switch-on assembly is adopted, the pins of the power supply module are abutted tightly, then the test instrument is switched on, the test is carried out after the connection is stable, and the current impact on the power supply module caused by unstable electric connection is avoided.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The DC/DC power supply module testing device is characterized by comprising a shell, a connecting cable and a pressing assembly, wherein a plurality of jacks are formed in the top surface of the shell;

2. The testing device of claim 1, wherein the compression block comprises a diameter-variable portion and a diameter-fixed portion, the diameter of the diameter-fixed portion is larger than that of the driving rod, the diameter of the diameter-fixed portion is unchanged, the diameter of the diameter-variable portion is gradually increased from the diameter of the driving shaft to the diameter of the diameter-fixed portion, and one end of the diameter-variable portion, which is larger than that of the diameter-fixed portion, is connected with the diameter-fixed portion.

3. The testing device of claim 2, wherein the side surface of the diameter-varying portion is a smooth curved surface.

4. The DC/DC power module testing device of claim 1, wherein an elastic member is connected between the pressing bar and the inner side of the housing, and the elastic member provides an elastic force for the pressing bar to move toward the pressing block.

5. The DC/DC power module testing apparatus of claim 1, further comprising a switch-on assembly, the switch-on assembly comprising a master platen, a slave platen, and a plurality of sets of metal contacts;

the auxiliary pressure plate is rotatably connected to the inner bottom surface of the shell, and an elastic part is arranged at the joint of the auxiliary pressure plate and the shell and provides elastic force for upward rotation of the auxiliary pressure plate; the main pressure plate is fixedly arranged on the driving shaft, and the position of the main pressure plate corresponds to that of the auxiliary pressure plate;

the number of the groups of the metal contacts is the same as that of the jacks, the number of the metal contacts in each group is two, one metal contact is electrically connected with the metal elastic sheet in the jack, and the other metal contact is electrically connected with the lead in the connecting cable;

the bottom surface of the slave press plate is provided with a plurality of conductive plates, the number of the conductive plates is the same as the number of the metal contacts, each conductive plate is positioned right above one group of the metal contacts, and when the conductive plates rotate downwards along with the slave press plate, the corresponding two contacts are connected.

6. A DC/DC power module testing apparatus as claimed in claim 5, wherein said main pressure plate lags said hold-down blocks by an angle in the forward rotational direction of the drive shaft.