CN211318539U

CN211318539U - Probe module

Info

Publication number: CN211318539U
Application number: CN201921947617.9U
Authority: CN
Inventors: 江斌; 刘跃; 李�浩
Original assignee: Suzhou HYC Technology Co Ltd
Current assignee: Suzhou HYC Technology Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-08-21
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a probe module, which comprises a body; the probe assembly is positioned on one side of the floating plate, which is far away from the body; the probe assembly includes a cover plate; a mold core which is combined and fixed on the bottom surface of the cover plate and comprises a plurality of needle grooves; the blade needles are limited and fixed in the needle grooves by the limiting pieces; the floating plate comprises a needle hole corresponding to the electric contact end of the blade needle, the floating plate is configured to float relative to the body in the extension direction of the blade needle, and the electric contact end of the blade needle can protrude out of one side surface of the floating plate, which is far away from the body, from the needle hole at the position of the floating plate close to the body. The utility model discloses can carry out the whole change to the probe subassembly when a certain probe damages. When changing the probe subassembly, the assembly precision between the floating plate as probe module partly and the body is not influenced, need not further adjust the precision between the two, when having improved the work efficiency that the probe was changed to the probe module, has increased test process's stability.

Description

Probe module

Technical Field

The utility model relates to a testing arrangement technical field, more specifically relates to a probe module.

Background

With the rapid development of modern society, various electronic products enter people's lives, and people have higher and higher requirements for the quality of electronic products, so that in the production process of electronic products, each procedure needs to detect semi-finished products, test equipment is usually adopted to be electrically connected with the products for testing at present, a connecting piece of the test equipment is a metal probe, the prior art mainly aims at Pogo pins (cylindrical pins), the contact of the Pogo pins and a liquid crystal module end is point contact in the probe with the structural form, the products are easy to be pricked, the service life of the Pogo pins is low, the resistance value of the Pogo pins is large, test signals are unstable, and other defects. At present, a flat blade needle is gradually replacing a Pogo Pin (cylindrical needle) to be widely applied, the blade needle is in line contact with a liquid crystal module end, the contact area is large, the service life is longer than that of the Pogo Pin, the resistance value of the blade needle is small, and a test signal is more stable.

However, the probe module is limited by the defects of the structural design of the existing probe module, and the probe module cannot be integrally replaced, namely when a certain probe, namely a blade needle body, is damaged, after a cover plate is removed, the blade needle bodies arranged in the core are all independent individuals, the damaged needle body cannot be searched or replaced, and the core in the probe module is usually used for pressing a floating plate so as to be fixed with the body, so that a core provided with the probe cannot be detached when the needle body is replaced, and only all the probes arranged in a needle groove can be poured out, when the probe is taken out, if one probe is taken out, the work is complicated, the efficiency is low, and unnecessary friction damage is easily caused to the core; if all the probes are poured out, all the probes will fall off, which brings inconvenience to the replacement of the probes.

SUMMERY OF THE UTILITY MODEL

In view of the above, the to-be-solved technical problem of the present invention is to provide a probe module easy and convenient to replace a probe.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a probe module, the module comprising:

a body having a hollow interior cavity;

the floating plate is positioned at the bottom of the body; and

the probe assembly is positioned on one side of the floating plate, which is far away from the body;

the probe assembly includes:

the cover plate is combined and fixed on the top of the body;

a core which is combined and fixed on the bottom surface of the cover plate and is positioned in the hollow inner cavity and comprises a plurality of needle grooves; and

the blade needles are positioned in the hollow inner cavity, correspond to the needle grooves one by one and are limited and fixed in the needle grooves by the limiting pieces;

the floating plate comprises a plurality of needle holes which correspond to the electric contact ends of the blade needles one to one, the floating plate is configured to float relative to the body in the extension direction of the blade needles, and the electric contact ends of the blade needles can extend out of one side surface of the floating plate, which is far away from the body, from the needle holes at the positions, close to the body, of the floating plate.

In addition, preferably, the probe assembly further comprises a core fixing member located in the hollow inner cavity, and the core fixing member is sleeved outside the core and is fixedly combined with the cover plate;

the core fixing member includes an inwardly-retracted step portion, and the step portion forms the stopper.

In addition, preferably, the blade needle comprises a limiting edge corresponding to the stepped portion table surface, and the blade needle is limited and fixed in the needle groove of the core through the matching of the stepped portion table surface and the blade needle limiting edge.

In addition, preferably, the floating plate is fixed on the bottom surface of the body by a contour screw, an elastic member is arranged between the floating plate and the body, and the acting force direction of the elastic member is along the axial direction of the contour screw.

In addition, preferably, a positioning column and a positioning hole correspondingly matched with the positioning column are arranged between the core fixing piece and the cover plate.

In addition, preferably, a positioning pin and a positioning pin hole correspondingly matched with the positioning pin are included between the body and the cover plate.

In addition, it is preferable that the cover plate includes a positioning pin hole corresponding to a head end of the blade pin far away from the electrical connection end.

Furthermore, it is preferable that the floating plate is not in contact with the core and the core holder when the floating plate is located at an extreme position near the body.

In addition, preferably, the body comprises a limiting table extending inwards from the inner wall of the hollow inner cavity, and the limiting table is configured to stably fix the core fixing piece between the body and the cover plate.

Furthermore, it is preferable that a side surface of the floating plate facing away from the body includes a surrounding wall surrounding the plurality of pinholes.

The utility model has the advantages as follows:

compared with the prior art, the utility model provides a probe module is through being fixed in the design of body both sides respectively with floating plate and probe subassembly, and through set up the needle groove that matches with the blade needle on the core for but a plurality of blade needles one-to-one install in the needle inslot, the validity of the assembly of assurance, and because the shape in needle groove is unanimous with blade aciculiform form, make overall structure compacter, increased the stability of test process. Furthermore the utility model provides an at least probe subassembly that comprises lid, core and probe forms an integral structure among the probe module structure, is convenient for when a certain probe damages, can carry out the whole change to the probe subassembly. When changing the probe subassembly, the assembly precision between the floating plate as probe module partly and the body is not influenced, and then has guaranteed to change probe subassembly back, the probe can be direct with the pinhole one-to-one on the floating plate, need not further adjust the precision between the two, when having improved the work efficiency that probe module changed the probe, has increased test process's stability.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 shows a schematic view of an overall structure of the probe module provided by the present invention.

Fig. 2 shows an assembly view of the probe module provided by the present invention.

Fig. 3 illustrates an assembly view of a probe assembly provided by the present invention.

Fig. 4 shows a schematic structural view of the core fixing member provided by the present invention.

Fig. 5 shows a schematic structural diagram of the floating plate provided by the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Receive the structural constraint for solving current probe module, be difficult for changing the problem of probe in the module, the utility model provides a probe module combines fig. 1 to 5 to show, specifically, probe module includes:

a body 1 having a hollow interior;

a floating plate 2 positioned at the bottom of the body 1; and

a probe assembly 3 positioned on the side of the floating plate 2 away from the body 1;

the probe assembly 3 includes:

a cover plate 31 combined and fixed on the top of the body 1;

a core 32 which is combined and fixed on the bottom surface of the cover plate 31 and is positioned in the hollow inner cavity and comprises a plurality of needle grooves 321; and

a plurality of blade needles 33 which are positioned in the hollow inner cavity, correspond to the plurality of needle slots 321 one by one and are limited and fixed in the needle slots 321 by limiting pieces;

the floating plate 2 comprises a plurality of needle holes 21 which correspond to the electric contact ends 331 of the blade needles 33 one by one, the floating plate 2 is configured to float relative to the body 1 in the extending direction of the blade needles 33, and the electric contact ends 331 of the blade needles 33 can protrude out of one side surface of the floating plate 2, which is far away from the body 1, from the needle holes 21 at the position where the floating plate 2 is close to the body 1.

The utility model provides a probe module is through being fixed in body 1 both sides respectively with floating plate 2 and probe subassembly 3 to cooperation blade needle 33 is by the spacing design that is fixed in needle groove 321 of locating part, makes at least by lid 31, core 32 and the fixed probe subassembly 3 that constitutes of blade needle 33 intercombination form an integral structure, is convenient for when a certain probe damages, can carry out the whole change to the probe subassembly. When changing the probe subassembly, the assembly precision between the floating plate as probe module part and the body is not influenced, and then has guaranteed to change probe subassembly back, the probe can be direct with the pinhole one-to-one on the floating plate, need not further adjust the precision between the two, has improved the work efficiency that the probe module changed the probe to and when making things convenient for probe later stage to change and maintain, still increased test process's stability.

In one embodiment, the present invention provides a preferred embodiment for the combination and fixation among the core 32, the blade needle 33 and the cover plate 31, and specifically, as shown in fig. 2, 3 and 4, the probe assembly 3 further includes a core fixing member 34 located in the hollow cavity, the core fixing member 34 is sleeved outside the core 32 and is combined and fixed with the cover plate 31; the core fixing member 34 includes an inwardly-retracted step 341, and the step 341 forms the stopper. Furthermore, the blade needle 33 includes a limit edge 332 corresponding to the mesa of the stepped portion 341, and the blade needle 33 is limited and fixed in the needle groove 321 of the core 32 by the matching of the mesa of the stepped portion 341 and the limit edge 332 of the blade needle 33. The core holder 34 can surround the blade needle from the outside of the blade needle 33, in order to prevent the blade needle from falling out of the needle groove. On the other hand, the inwardly-retracted step 341 of the core holder 34 can firmly combine and fix the core 32 and the cover plate 31 into an integral structure from the bottom of the core 32, and the spacing member formed by the step 341 can utilize the cooperation between the table of the step 341 and the spacing edge 332 of the blade needle 33 to realize the spacing and fixation of the blade needle 33 in the needle slot 321 by the spacing member, but it can be understood that a space is left between the steps 341 so that the electric contact end 331 of the blade needle 33 can protrude from the needle hole out of one side surface of the floating plate 2 away from the body 1 at the position where the floating plate 2 is close to the body 1. Preferably, a positioning column 4 and a positioning hole 5 correspondingly matched with the positioning column 4 are included between the core fixing piece 34 and the cover plate 31. And in one embodiment, the body 1 includes a limit stop extending inward from the inner wall of the hollow cavity, and the limit stop is configured to firmly fix the core fixing member 34 between the body 1 and the cover plate 31.

The utility model discloses in, the blade needle is at first realized the preliminary equipment location of blade needle through the core, and rethread core and the fixed of apron to and the fixed complete location of realizing the blade needle of core mounting and apron, the core mounting with the assembly precision between core mounting and the apron can be guaranteed to the reference column of mutually supporting between the apron and locating hole. It can be understood that the reference column can be disposed on the cover plate or disposed on the core fixing member, opposite to the reference column, the positioning hole can be disposed on the core fixing member or on the cover plate, and the reference column can be a separate component, so as to facilitate the replacement and assembly in the later stage, which is not limited by the present invention.

In one embodiment, the floating plate 2 is fixed on the bottom surface of the body 1 by a contour screw 6, an elastic member 7 is included between the floating plate 2 and the body 1, and the acting force direction of the elastic member 7 is along the axial direction of the contour screw 6. The equal-height screw 6 comprises a screwing part which is positioned at the head end part and is used for connecting and fixing the floating plate 2 on the body 1 and a guide part which is positioned at the rear end of the screwing part and provides guide for floating of the floating plate 2. In addition, the elastic member 7 may be a spring or other elastic element with elastic restoring capability, which is not limited to this, when the elastic member 7 is a spring, the spring may be configured between the floating plate 2 and the bottom of the body 1, or in order to ensure that the spring is stressed uniformly and does not distort, the spring may also be sleeved on the equal-height screws to maintain the floating stability of the floating plate.

As shown in fig. 5, the floating plate 2 of the present invention further includes a surrounding wall 22 surrounding the plurality of pinholes 21 on a surface of one side of the body 1. When the probe module is fixed on the detection structure in a combined manner to crimp and conduct the B2B and the FPC at the liquid crystal module end, the surrounding wall 22 can provide a prepositioning effect to ensure that the product is positioned under the blade pins, so that the electrical contact ends of the blade pins and the electrical connection ends of the product to be detected can be crimped and connected accurately and stably one-to-one.

In one embodiment, as shown in fig. 2, the positioning pins 8 and the positioning pin holes correspondingly matched with the positioning pins 8 are included between the body 1 and the cover plate 31 to ensure the assembly accuracy between the body and the whole structure of the probe assembly.

With reference to the structure shown in the figure, in a preferred embodiment, the cover plate 31 includes a positioning pin hole 311 corresponding to a head end 333 of the blade pin 33 far away from the electrical connection end 331, so as to further ensure the positioning accuracy of the blade pin 33.

In the embodiment shown in fig. 1 to 4, in order to avoid the blade needle 33 from shaking due to collision between the floating plate 2 and the core 32 or the core fixing member 34 and to prevent the abutment accuracy of the blade needle 33 from being affected, when the floating plate 2 is located at an extreme position close to the body 1, the floating plate 2 is not in contact with the core 32 or the core fixing member 34.

In practical application, the utility model provides a probe module combination is fixed structurally for B2B and FPC to the liquid crystal module end carry out the crimping and detect, the kickboard is the state of popping open during initial condition, and the kickboard is located the position of keeping away from the body promptly, and the electric link of blade needle this moment is hidden in the kickboard, plays the protection to the blade needle. During the detection, this probe module removes crimping B2B or FPC, and the kickboard atress retracts, leans on to the body, and the electric connection end of blade needle is exposed by the side surface of keeping away from the body of kickboard, and with B2B or FPC contact, realize switching on of signal, accomplish the detection through other equipment afterwards.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.

Claims

1. A probe module, the module comprising:

a body having a hollow interior cavity;

the floating plate is positioned at the bottom of the body; and

the probe assembly includes:

the cover plate is combined and fixed on the top of the body;

2. The probe module of claim 1, wherein the probe assembly further comprises a core holder disposed in the hollow cavity, the core holder surrounding the core and being fixed to the cover plate;

3. The probe module of claim 2, wherein the blade pin includes a limiting edge corresponding to the mesa of the stepped portion, and the blade pin is limited and fixed in the pin groove of the core by the matching of the mesa of the stepped portion and the limiting edge of the blade pin.

4. The probe module of claim 1, wherein the floating plate is fixed on the bottom surface of the body by a set screw, and an elastic member is disposed between the floating plate and the body, and the direction of the elastic member is along the axial direction of the set screw.

5. The probe module of claim 2, wherein the core holder and the cover plate include positioning posts and positioning holes corresponding to the positioning posts.

6. The probe module of claim 1, wherein the body and the cover plate include a positioning pin and a positioning pin hole corresponding to the positioning pin.

7. The probe module of claim 1, wherein the cover plate includes a positioning pin hole corresponding to a tip end of the blade pin away from the electrical connection end.

8. The probe module of claim 2, wherein the floating plate is configured to be in contact with neither the core nor the core fixture when the floating plate is in the extreme position adjacent to the body.

9. The probe module of claim 2, wherein the body includes a retention ledge extending inwardly from an inner wall of the hollow interior, the retention ledge configured to securely retain a core retainer between the body and the cover plate.

10. The probe module of claim 1, wherein the surface of the floating plate facing away from the body comprises a surrounding wall surrounding the pin holes.