Anti-burning probe clamping head

Abstract

The utility model discloses an anti-needle-burning probe chuck, which comprises an upper guide plate, a lower guide plate and probes, the upper guide plate is arranged at the upper end of the lower guide plate, a plurality of groups of probes are inserted between the upper guide plate and the lower guide plate, upper needle holes are distributed on the surface of the upper guide plate, lower needle holes are distributed on the surface of the lower guide plate, and the probes penetrate through the upper needle holes and the lower needle holes. A power short circuit module is installed at the position, penetrating through the probe, of the upper guide plate, conduction assemblies are installed on the power short circuit module, conductive wires are connected between the conduction assemblies, a capacitor assembly is installed on the surface of the power short circuit module, and an input terminal is arranged at the upper end of the probe. According to the probe card head capable of preventing the probe from being burnt, the short circuit is additionally arranged on the probe card, and when a certain group of probe terminals go wrong, accessed current can uniformly flow into each group of probes through the short circuit, so that the probe is prevented from being loaded, and the problem of probe burning is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the probe field especially relates to a prevent burning needle probe chuck. BACKGROUND

[0002] The prevent burning needle probe chuck is a kind of supporting equipment for current and signal transmission on circuit board, probe connects measured object and test substrate, and whether measured object is qualified is determined by transmitting certain current and frequency, along with the continuous development of science and technology, people's manufacturing process requirements for prevent burning needle probe chuck are also higher and higher.

[0003] The existing probe chuck has certain drawbacks when in use, first, if the current bypasses the current probe and outputs to other probes, the probe load is caused, the high temperature and dry burning condition appear, the actual use process is brought certain unfavorable influence, the prevent burning needle probe chuck is proposed for this, the prevent burning needle probe chuck is proposed for this. UTILITY MODEL CONTENT

[0004] The technical problem solved: in view of the deficiency of prior art, the utility model provides a prevent burning needle probe chuck, a short circuit is additionally arranged on the probe card, when a group of probe terminals appear problems, the current accessed can also flow into each group of probes through the short circuit, prevent the probe load, avoid the problem of burning needle, can effectively solve the problems in the background art.

[0005] Technical scheme: in order to achieve the above object, the utility model takes the technical scheme that a prevent burning needle probe chuck, including upper guide plate, lower guide plate and probe, the upper guide plate is located at the upper end of lower guide plate, and a plurality of probes are inserted between the upper guide plate and the lower guide plate, the upper guide plate surface is distributed with upper needle hole, the lower guide plate surface is distributed with lower needle hole, the probe passes through the upper needle hole and the lower needle hole, the position of the upper guide plate through the probe is equipped with power short circuit module, the power short circuit module is equipped with on-off assembly, each group of on-off assembly is connected with conducting wire, the surface of power short circuit module is equipped with capacitor assembly, the upper end of probe is provided with input terminal, and the lower end of probe is provided with output terminal.

[0006] Preferably, the input terminal on the probe is connected to the power supply, and the current is evenly input in the probe.

[0007] Preferably, when the input terminal and the output terminal of each group of probes are normally connected, the current input at the input terminal is evenly input on each group of probes and flows out.

[0008] Preferably, when one of the input terminals and the output terminals of each group of the probes is abnormally connected, the current input at the input terminal flows through the position of the conductive assembly on the power short circuit module through the conductive wire and is evenly input into each group of the probes.

[0009] Preferably, the output terminal of each group of the probes is connected with a current detection assembly, and the current detection assembly is provided with a current sensor, a signal transmitter, a central processing unit, a display, an alarm and an automatic power-off controller.

[0010] Preferably, the output terminal of the current sensor is electrically connected with the input terminal of the central processing unit through the signal transmitter, and the output terminal of the central processing unit is electrically connected with the input terminal of the display, the alarm and the automatic power-off controller.

[0011] Advantages: Compared with the prior art, the utility model provides a kind of prevent burning needle probe chuck, with following beneficial effects: the one kind of prevent burning needle probe chuck, a short circuit is additionally provided on probe card, when the problem of some group of probe terminal appears, the current of access can also be evenly flowed into each group of probe by short circuit, prevent probe load, avoid the problem of burning needle, the input terminal of probe is connected with power supply, and current is evenly input in probe transmission, when the input terminal of each group of probe and the output terminal are normally connected, the current input at the input terminal is evenly input into each group of the probes and flows out;When one of the input terminals and the output terminals of each group of the probes is abnormally connected, the current input at the input terminal flows through the position of the conductive assembly on the power short circuit module through the conductive wire and is evenly input into each group of the probes and flows out, the whole prevent burning needle probe chuck structure is simple, and the effect of operation is better relative to traditional mode. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole structure schematic diagram of the utility model one kind of prevent burning needle probe chuck.

[0013] Figure 2 It is the structure schematic diagram of probe and power module in the utility model one kind of prevent burning needle probe chuck.

[0014] Figure 3 It is the structure schematic diagram of power module in the utility model one kind of prevent burning needle probe chuck.

[0015] Figure 4 It is the structure schematic diagram of probe transmission in the utility model one kind of prevent burning needle probe chuck.

[0016] Figure 5The utility model discloses a kind of current detection components of anti-burn probe probe chuck structure schematic diagram.

[0017] In the drawing: 1, upper guide plate; 2, lower guide plate; 3, probe; 4, upper needle hole; 5, lower needle hole; 6, conduction component; 7, input terminal; 8, capacitor component; 9, conductive wire; 10, power short-circuit circuit module; 11, output terminal; 12, current detection component; 13, current sensor; 14, signal transmitter; 15, central processing unit; 16, display; 17, alarm; 18, automatic power-off controller. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings and specific embodiments, but those skilled in the art will understand that the following described embodiments are part of the embodiments of the utility model, not all embodiments, are only used to illustrate the utility model, and should not be regarded as limiting the scope of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the utility model. Not specified in the embodiment, according to conventional conditions or manufacturer's recommended conditions. The reagent or instrument used is not marked with manufacturer, is all conventional product that can be obtained by market purchase.

[0019] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The indicated device or element must have a particular orientation, a particular orientation and operation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0021] For example, Figures 1-5As shown, a kind of anti-burn probe probe head, including upper guide plate 1, lower guide plate 2 and probe 3, upper guide plate 1 is located in the upper end of lower guide plate 2, and multiple groups of probes 3 are inserted between upper guide plate 1 and lower guide plate 2, and upper needle hole 4 is distributed on the surface of upper guide plate 1, and lower needle hole 5 is distributed on the surface of lower guide plate 2, and probe 3 passes through upper needle hole 4 and lower needle hole 5, power short-circuit circuit module 10 is installed on the position of upper guide plate 1 passing through probe 3, power short-circuit circuit module 10 is installed with on-off component 6, each group of on-off component 6 is connected with conducting wire 9, and capacitor component 8 is installed on the surface of power short-circuit circuit module 10, the upper end of probe 3 is provided with input terminal 7, and the lower end of probe 3 is provided with output terminal 11, a short-circuit circuit is additionally arranged on the probe card, when the problem of a group of probe terminals occurs, the current is also input into each group of probes through the short-circuit circuit, to prevent probe load and avoid the problem of burning needle.

[0022] Further, the input terminal 7 on the probe 3 is connected to the power supply, and the current is evenly input in the probe 3.

[0023] Further, when the input terminal 7 and the output terminal 11 on each group of probes 3 are normally connected, the current input at the input terminal 7 is evenly input into each group of probes 3 and flows out.

[0024] Further, when one of the input terminal 7 and the output terminal 11 on one group of probes 3 is abnormally connected, the current input at the input terminal 7 flows through the position of the on-off component 6 on the power short-circuit circuit module 10 through the conducting wire 9, and is evenly input into each group of probes 3 and flows out.

[0025] Further, the output terminal 11 of each group of probes 3 is connected with current detection component 12, and the current detection component 12 is provided with current sensor 13, signal transmitter 14, central processing unit 15, display 16, alarm 17 and automatic power-off controller 18, the current sensor 13 is connected with signal transmitter 14, the signal transmitter 14 is connected with central processing unit 15, and the central processing unit 15 is connected with display 16, alarm 17 and automatic power-off controller 18.

[0026] Further, the output end of the current sensor 13 is electrically connected with the input end of the central processing unit 15 through the signal transmitter 14, and the output end of the central processing unit 15 is electrically connected with the input end of the display 16, the alarm 17 and the automatic power-off controller 18.

[0027] Working principle: the utility model discloses a upper guide plate 1, lower guide plate 2, probe 3, upper needle hole 4, lower needle hole 5, conducting component 6, input terminal 7, capacitor component 8, conducting wire 9, power short circuit module 10, output terminal 11, current detection component 12, current sensor 13, signal transmitter 14, central processing unit 15, display 16, alarm 17, automatic power-off controller 18, add a short circuit on the probe card, when a group of probe terminals appear problem, the current of access can still flow into every group of probes through the short circuit, prevent probe load, avoid the problem of burning needle. The input terminal 7 on probe 3 is connected to the power supply, and the current is evenly input in probe 3, when the input terminal 7 and output terminal 11 on every group of probe 3 are normally connected, the current input at input terminal 7 evenly flows into every group of probe 3 and flows out, when one of the input terminal 7 and output terminal 11 on one group of probe 3 is abnormally connected, the current input at input terminal 7 flows through the position of conducting component 6 on power short circuit module 10 through conducting wire 9, and evenly flows into every group of probe 3 and flows out.

[0028] It is to be understood that the terminology used herein such as first and second (or one and two), etc. merely identifies the nature of the entities or actions, and is not to be taken as a requirement that these entities or actions be related or be in a specific order. Furthermore, the terms "comprise", "comprises" or "comprising" or any variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article or apparatus that comprises the recited element.

[0029] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A burn-proof probe card head comprising an upper guide plate (1), a lower guide plate (2) and probes (3), characterized in that: The upper guide plate (1) is located at the upper end of the lower guide plate (2), a plurality of groups of probes (3) are inserted between the upper guide plate (1) and the lower guide plate (2), the upper guide plate (1) is distributed with upper needle holes (4), the lower guide plate (2) is distributed with lower needle holes (5), the probe (3) passes through the upper needle hole (4) and the lower needle hole (5), the position of the probe (3) on the upper guide plate (1) is provided with a power short circuit module (10), the power short circuit module (10) is provided with a conduction assembly (6), each group of conduction assemblies (6) is connected with a conductive wire (9), the surface of the power short circuit module (10) is provided with a capacitor assembly (8), the upper end of the probe (3) is provided with an input terminal (7), and the lower end of the probe (3) is provided with an output terminal (11).

2. The burn-prevention probe card head of claim 1, wherein: The input terminal (7) on the probe (3) is connected to the power supply, and the current is evenly input into the probe (3).

3. The burn-preventive probe card according to claim 1, wherein: When the input terminal (7) and the output terminal (11) of each group of probes (3) are normally connected, the current input at the input terminal (7) is evenly input into each group of probes (3) and flows out.

4. The burn-preventive probe card according to claim 1, wherein: When one of the input terminal (7) and the output terminal (11) of one group of probes (3) is abnormally connected, the current input at the input terminal (7) flows through the position of the conduction assembly (6) of the power short circuit module (10) through the conductive wire (9), and is evenly input into each group of probes (3) and flows out.

5. The burn-preventive probe card according to claim 1, wherein: The output terminal (11) of each group of probes (3) is connected with a current detection assembly (12), and the current detection assembly (12) is provided with a current sensor (13), a signal transmitter (14), a central processing unit (15), a display (16), an alarm (17) and an automatic power-off controller (18), the current sensor (13) is connected with the signal transmitter (14), the signal transmitter (14) is connected with the central processing unit (15), and the central processing unit (15) is connected with the display (16), the alarm (17) and the automatic power-off controller (18).

6. A burn-preventive probe card according to claim 5, wherein: The output end of the current sensor (13) is electrically connected with the input end of the central processing unit (15) through the signal transmitter (14), and the output end of the central processing unit (15) is electrically connected with the input end of the display (16), the alarm (17) and the automatic power-off controller (18).

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