WO2018188169A1

WO2018188169A1 - Recognition head

Info

Publication number: WO2018188169A1
Application number: PCT/CN2017/085488
Authority: WO
Inventors: 王刚; 段维虎; 毛宏程; 王波
Original assignee: 广州众诺电子技术有限公司
Priority date: 2017-04-13
Filing date: 2017-05-23
Publication date: 2018-10-18
Also published as: CN206945760U

Abstract

A Recognition head, comprising a housing (1), a circuit board (2), and probes (3). The circuit board (2) is mounted in the housing (1). The probes (3) are mounted on the housing (1). There are one or more probes (3). Each probe (3) separately comprises a contact portion (31) and a mounting portion (32) connected to the contact portion (31). The mounting portion (32) is mounted on the housing (1). The probes (3) are communicated with the circuit board (2). The contact portion (31) of each probe (3) separately comprises a connecting end (311) and a contact end (312). The connecting end (311) is fixedly connected to the contact end (312). The connecting end (311) is connected to the mounting portion (32). The maximum outer diameter of at least one contact end (312) is greater than that of the connecting end (311) connected thereto. According to the recognition head, by increasing the maximum outer diameter of the contact end (321) of at least one probe (3), the recognition head can be applied to more types of chips, and the probes (3) are in better contact with the chip terminals.

Description

Identification head

Technical field

The utility model relates to the technical field of consumables used in an imaging device, in particular to an identification head.

Background technique

Referring to FIG. 1, the conventional identification heads are generally one housing, and a plurality of probes are disposed in the housing, and the operation of identifying, burning, or diagnosing the chips is realized by contacting the probes with the terminals of the chips, but the existing ones are used. All probe shapes of the identification head are identical in shape: the probe includes a contact for contacting the terminal 101 of the chip 100, and a mounting portion for connection to the housing. The mounting portion is a hollow cylindrical shape, and the contact portion is movable relative to the hollow cylindrical portion.

Although the conventional identification head can perform operations such as identification or burning of the chip 100, the terminals of some of the chips are in the shape of a through hole, and the probe of the conventional identification head passes through the through hole to cause a contact failure. Therefore, the existing recognition head is less versatile.

Utility model content

In order to solve the above problems, the present invention provides an identification head of a versatile chip.

An identification head includes a housing, a circuit board and a probe, the circuit board is mounted in the housing, and the probe is mounted on the housing; the number of the probes is one or more; each The probes respectively include a contact portion and a mounting portion connected to the contact portion, the mounting portion is mounted to the housing; the probe is in communication with the circuit board; and the contact portions of each of the probes respectively include a connecting end and a contact end The connecting end is fixed to the contact end; the connecting end is connected to the mounting portion; the maximum outer diameter of at least one of the contact ends is greater than the maximum outer diameter of the connecting end connected thereto.

Preferably, the maximum outer diameter of the contact end having a maximum outer diameter greater than the maximum outer diameter of the connection end to which it is connected is less than twice the distance between adjacent two probes.

Preferably, the shape of the contact end having a maximum outer diameter larger than the maximum outer diameter of the connection end to which it is connected is a cylindrical shape, a hemispherical shape, a cylindrical shape, a truncated cone shape, or a cylindrical body having a curved surface on the side surface.

Preferably, the mounting portion is a hollow cylindrical body and is open at least at one end; the connecting end is movably inserted into the mounting portion, and the contact portion extends outside the open end of the mounting portion.

Preferably, the probe further comprises an elastic member; the elastic member is disposed in the contact portion and is in contact with the connecting end.

Preferably, the identification head further comprises a positioning plate; the positioning plate is mounted in the housing, and the probe is mounted on the positioning plate.

Preferably, the number of the positioning plates includes two or more.

Preferably, at least one of the positioning plates is provided with a communication line, and the probe communicates with the circuit board through the communication line.

Preferably, the housing includes a base and a cover; the base is provided with an installation space, and a peripheral wall is formed around the installation space; the circuit board is installed in the installation space; and the bayonet is opened on the peripheral wall; The positioning plate is inserted into the installation space and is engaged with the bayonet.

Preferably, each of the positioning plates is disposed in parallel in the housing; each positioning plate is divided into Perforations are provided, the probes pass through the perforations, and the probes are respectively disposed perpendicular to the positioning plate.

The beneficial effects of the utility model:

Compared with the prior art, the identification head of the present invention increases the maximum outer diameter of the contact end of the at least one probe so that it can smoothly contact the chip with the through-hole terminal, and the shape of the through hole of the terminal It can be round, polygonal, D-shaped or elliptical. Of course, the identification head of the utility model can still contact the chip without the through-hole terminal, and by increasing the maximum outer diameter of one or more contact ends, the identification head can be used for more types of chips, and can also be probed. The pin is in better contact with the terminal of the chip.

DRAWINGS

1 is a schematic structural view of an identification head and a chip having a through hole in the prior art;

2 is a schematic structural view of an identification head in an embodiment of the present invention;

3 is an exploded perspective view of the identification head shown in FIG. 2.

detailed description

Hereinafter, the present invention will be further described in conjunction with the drawings and specific embodiments:

Referring to FIG. 2 and FIG. 3, the embodiment provides an identification head including a housing 1, a circuit board 2, and a probe 3. The circuit board 2 is mounted in the housing 1. The probe 3 is mounted to the housing 1. The number of the probes 3 is one or more. Each of the probes 3 includes a contact portion 31 and a mounting portion 32 connected to the contact portion 31, and the mounting portion 32 is attached to the housing 1. The contact portion 31 can be used when it is required to communicate with the chip 100 through the identification head. It can be used to contact the terminal 101 of the chip 100. The probe 3 is in communication with the circuit board. After the probe 3 is in contact with the terminal 101 of the chip 100, the chip 100 can exchange data with the circuit board 2 in the identification head through the probe 3.

The housing 1 includes a base 11 and a cover 12 . The base 11 is provided with an installation space 110, and a peripheral wall 111 is formed around the installation space 110. The circuit board 2 is mounted in the installation space 110. A bayonet 113 is opened on the peripheral wall 111. A portion of the mounting portion 32 is inserted into the mounting space 110, and a remaining portion extends through the peripheral wall 111 of the mounting space 110 outside the mounting space 110.

The contact portion 31 of each of the probes 3 includes a connection end 311 and a contact end 312. The connection end 311 can be used to connect with the mounting portion 32, which can be used to contact the terminal 101 of the chip 100. The connection end 311 is fixed to the contact end 312. The connecting end 311 is connected to the mounting portion 32. The maximum outer diameter of at least one of the contact ends 312 is greater than the maximum outer diameter of the connection end 311 connected thereto; specifically, the maximum outer diameter of the contact end 312 is greater than or equal to the aperture of the circular hole of the chip 100 shown in FIG. The aperture may be about 5 mm.

Preferably, the maximum outer diameter of the contact end 312 having a maximum outer diameter greater than the maximum outer diameter of the connecting end 311 to which it is connected is less than twice the spacing between adjacent two probes 3. The spacing between the two probes 3 can range from about 3 to 8 mm. In this way, a gap can be formed between the contact end 312 and the adjacent probe 3 to prevent the contact end 312 from coming into contact with the adjacent probe 3 to cause a short circuit.

Preferably, the shape of the contact end 312 whose maximum outer diameter is larger than the maximum outer diameter of the connecting end 311 connected thereto is a spherical shape, a hemispherical shape, a cylindrical shape, a truncated cone shape or a side mask. A columnar body having a curved surface 313. The columnar body having the curved surface 313 on the side may be as shown in FIG. 2, the side surface of the contact end 312 and the end surface for contacting the chip 100 are smoothly connected by the curved surface 313, and the outer diameter of the curved surface 313 is The direction in which the side faces are directed to the end face for contact with the chip 100 is sequentially decreased, and the direction can be referred to the F direction in FIG.

As a preferred solution, in order to make the identification head plurality of probes 3 more stable in contact with the chip 100, the mounting portion 32 is connected to the contact portion 31 in a movable manner. Specifically, the mounting portion 32 is a hollow columnar body and is open at least at one end. Preferably, one end of the opening of the mounting portion 32 extends outside the installation space 110. The connecting end 311 is inserted into the mounting portion 32 in a movable manner, and the contact portion 31 extends outside the open end of the mounting portion 32. After the probe 3 is in contact with the chip 100, the identification head is moved in the direction of the chip 100 by an external force, so that the connection end 311 can slide inside the mounting portion 32, so that the length of the probe 3 is shortened, so that The length of the probe 3 that is in contact with the chip 100 is shortened to a larger extent, and the probe 3 that is in contact with the chip 3 is also better contacted with the chip 100.

In order to allow the probe 3 to be automatically reset after being shortened, the probe further includes an elastic member (not shown); the elastic member is disposed in the contact portion 31 and is in contact with the connecting end 311. Specifically, when the probe 3 is shortened, the elastic member is in a compressed state, and when the external force is revoked, the probe 3 can be automatically reset to the original state by the elastic member. The elastic member may be a spring. Contact of the connecting end 311 of the contact portion 31 by the elastic member makes it possible for the contact end 312 to better contact the terminal 101 on the chip 100 when the probe 3 comes into contact with the chip 100.

Since when the probe 3 is in contact with the chip 100, there is usually a certain thrust, thereby The probe 3 is easily loosened after a period of use. As a preferred solution, in order to prevent the probe 3 from loosening, the identification head of the embodiment may further include a positioning plate 4. The positioning plate 4 is mounted in the housing 1 , and the probe is mounted on the positioning plate 4 . The probe 3 can be positioned on the housing 1 through the positioning plate 4 to prevent the probe 3 from loosening after a certain period of use. Preferably, the number of the positioning plates 4 includes two or more. At least one of the positioning plates 4 is provided with a communication line, and the probe 3 communicates with the circuit board 2 through the communication line. The communication line is electrically connected to the probe 3 and the circuit board 2 so that signals can be transmitted between the communication line, the probe 3 and the circuit board 2.

Each of the positioning plates 4 is disposed in parallel in the housing 1 . Perforations are respectively formed in each of the positioning plates 4. The probe 3 passes through the perforations of the respective positioning plates. Preferably, the mounting portion 32 passes through the perforations of the respective positioning plates, and the mounting portion 32 is fixedly coupled to the positioning plate 4. Positioning the probe 3 by a plurality of positioning plates 4 makes the probe 3 more stable, preventing the probe 3 from loosening after a certain period of use. Each of the probes 3 is disposed perpendicular to the positioning plate 4, respectively. The positioning plate 4 is inserted into the installation space 110 and is engaged with the bayonet 113.

In summary, the identification head of the present invention increases the maximum outer diameter of the contact end 312 of the at least one probe 3 so that it can smoothly contact the chip 100 having the through-hole terminal 101. The shape of the through hole of the terminal 101 may be a circle, a polygon, a D shape, an ellipse or the like. The identification head of the present invention can of course still be in contact with the chip 100 in which the through-hole terminal 101 is not present, by increasing the maximum outer diameter of one or more of the contact ends 312 to increase the contact end 312 and The contact area when the terminal 101 of the chip 100 contacts may be such that the contact end 312 of the probe 3 is connected to the terminal 101 of the chip 100. Touch better. The present invention thus enables the identification head to be used in more types of chips 100 by increasing the maximum outer diameter of one or more contact ends 312, and also allows the probes 3 to be in better contact with the terminals 101 of the chip 100. Furthermore, by increasing the maximum outer diameter of the contact end 312 of the partial probe 3, the corresponding probe 3 and the other probes 3 are stored in a difference in shape, avoiding contact between the probe 3 and the terminal 101 of the chip 100. The phenomenon of reversal occurs, which further improves the practicality of the recognition head. It should be noted that the identification head of the present invention can be used alone as an identification head, or can be connected to a multi-function chip burner or identifier.

Various other changes and modifications may be made by those skilled in the art in light of the above-described technical solutions and concepts, and all such changes and modifications are intended to fall within the scope of the appended claims.

Claims

An identification head comprising a housing, a circuit board and a probe, the circuit board being mounted in the housing, the probe being mounted on the housing; the number of the probes being one or more; each of the probes Each includes a contact portion and a mounting portion connected to the contact portion, the mounting portion is mounted to the housing; the probe is in communication with the circuit board; and the contact portions of the probes respectively include a connecting end and a contact end The connecting end is fixed to the contact end; the connecting end is connected to the mounting portion; the maximum outer diameter of at least one of the contact ends is greater than the maximum outer diameter of the connecting end connected thereto.
The identification head according to claim 1, wherein a maximum outer diameter of the contact end having a maximum outer diameter greater than a maximum outer diameter of the connection end to which it is connected is less than twice a distance between adjacent two probes.
The identification head according to claim 1 or 2, wherein the contact end having a maximum outer diameter larger than a maximum outer diameter of the connection end connected thereto is spherical, hemispherical, cylindrical, round, or curved on the side. Columnar body.
The identification head according to claim 1 or 2, wherein the mounting portion is a hollow cylindrical body and at least one end is open; the connecting end is movably inserted in the mounting portion, and the contact portion extends Outside the open end of the mounting section.
The identification head according to claim 4, wherein the probe further comprises an elastic member; the elastic member is disposed in the contact portion and is in contact with the connecting end.
The identification head according to claim 1 or 2, wherein the identification head further comprises a positioning plate; the positioning plate is mounted in the housing, and the probe is mounted on the positioning plate.
The identification head according to claim 6, wherein: said positioning plate The number includes two or more.
The identification head according to claim 7, wherein at least one of said positioning plates is provided with a communication line, and said probe communicates with said circuit board through said communication line.
The identification head according to claim 6, wherein the housing comprises a base and a cover; the base is provided with an installation space, and a peripheral wall is formed around the installation space; the circuit board is installed in the installation space a bayonet is formed on the peripheral wall; the positioning plate is inserted into the installation space and is engaged with the bayonet.
The identification head according to claim 6, wherein each of the positioning plates is disposed in parallel in the housing; each of the positioning plates is respectively provided with a through hole, and the probe passes through the through hole of each positioning plate. Each probe is disposed perpendicular to the positioning plate.