Combined electrostatic suppressor and application method

Abstract

The invention relates to a combined electrostatic suppressor, comprising a suppressor body and a combined bracket, wherein the combined bracket comprises a clamping piece, a clamping positioning groove matched with the clamping piece is arranged in the middle of the suppressor body, and the clamping piece is electrically connected to the ground pin of the suppressor body when clamping the suppressor body; a metal heat-conducting column is connected to the clamping piece, and a positioning through hole matched with the metal heat-conducting column is arranged on the circuit board; the combined bracket also comprises a bracket circuit board, and a plurality of grounding pads directly and fixedly connected to the metal heat-conducting columns one by one, sensors corresponding to the temperature of the grounding pads and an alarm are arranged on the bracket circuit board, and the alarm gives an alarm to the outside world when the induced temperature of the sensor exceeds a threshold value, and the grounding pad is grounded; while achieving the purpose of conductive heat dissipation and temperature monitoring alarm, the grounding pin of the suppressor body is also led out to the grounding pad on the bracket circuit board, saving the wiring space of the circuit board and greatly reducing the complexity of the circuit design.

Description

Technical Field

[0001] The present invention relates to the technical field of electrostatic suppressors, and more specifically, to a combined electrostatic suppressor and an application method thereof. Background Art

[0002] Static electricity is formed when two materials with different dielectric constants rub against each other, and positive and negative charges accumulate on the two bodies. When two objects come into contact, one of them tends to attract electrons from the other, so the two will form different charging potentials. As far as the human body is concerned, static electricity generated by friction between clothes and skin is one of the main reasons why the human body is charged.

[0003] When a static electricity source comes into contact with other objects, there is a flow of charge based on the charge neutralization mechanism, transmitting enough electricity to offset the voltage. In the process of high-speed power transmission, potential damaging voltage, current and electromagnetic field will be generated, and in severe cases, the objects will be destroyed. This is electrostatic discharge. The national standard defines: electrostatic discharge is the charge transfer caused by the close proximity or direct contact of special bodies with different electrostatic potentials (GB / T4365-1995), generally represented by ESD. ESD can cause serious damage to electronic equipment or malfunction.

[0004] Because ESD suppressors have many advantages such as small size (0603, 0402), non-polarity, and fast response speed, more and more ESD suppressors are used as protective devices in current designs. The following points should be noted when using them:

[0005] 1. Place the device as close as possible to the port that needs to be protected; 2. Make the connection to GND as short as possible; 3. Make the area of ​​the connected GND as large as possible; At the same time, some ESD suppressors also have the need for thermal monitoring and heat dissipation; Most of the currently used installation structures can only solve the above three defects 1.2.3 by optimizing the routing lines on the circuit board. This method needs to comprehensively consider the needs of other components, is difficult to design, and is subject to many restrictions. In terms of heat dissipation, the heat dissipation performance of the ESD suppressor package is improved by adding structures such as heat sinks. A combined structure that can solve the above problems is needed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a combined electrostatic suppressor and an application method in view of the above-mentioned defects of the prior art.

[0007] The technical solution adopted by the present invention to solve its technical problem is:

[0008] A combined electrostatic suppressor is constructed, which includes a suppressor body and a combined bracket, wherein the front and rear ends of the suppressor body are both provided with external electrodes, and the combined bracket includes a plurality of clamping pieces corresponding to the suppressor body one by one, the clamping pieces are made of metal material, and the middle part of the suppressor body is provided with a clamping positioning groove matched with the clamping piece, and the clamping piece is electrically connected to the ground pin of the suppressor body when clamping the suppressor body; a metal heat-conducting column is connected to the clamping piece, and a positioning through hole matched with the metal heat-conducting column is provided on the circuit board; the combined bracket also includes a bracket circuit board, and the bracket circuit board is provided with a plurality of grounding pads directly and fixedly connected to the metal heat-conducting columns one by one, sensors corresponding to the temperature of the grounding pads, and an alarm, and the alarm alarms the outside world when the sensing temperature of the sensor exceeds a threshold value, and the grounding pad is grounded.

[0009] In the combined electrostatic suppressor described in the present invention, there is a gap between the bracket circuit board and the circuit board, and a cooling fan blowing toward the gap is arranged on the bracket circuit board. When the sensed temperature of the sensor exceeds a threshold value, the cooling fan is triggered to start.

[0010] In the combined electrostatic suppressor of the present invention, the bracket circuit board and the circuit board are fixedly connected via a plurality of connecting studs.

[0011] In the combined electrostatic suppressor of the present invention, the clamping member comprises a left clamping arm and a right clamping arm, the left clamping arm and the right clamping arm are both concave, and one end of each of the left clamping arm and the right clamping arm are hinged to the metal heat-conducting column.

[0012] The combined electrostatic suppressor of the present invention, wherein after assembly, the lower surface of the clamping member is in contact with the circuit board

[0013] In the combined electrostatic suppressor of the present invention, the ground pin is arranged in the clamping positioning groove.

[0014] In the combined electrostatic suppressor of the present invention, the ground pad is provided with an opening for the metal heat-conducting column to pass through.

[0015] A combined electrostatic suppressor application method is applied to the combined electrostatic suppressor as described above, and the implementation method is as follows:

[0016] After a positioning through hole is opened on the circuit board to match the metal heat-conducting column, the bracket circuit board is fixedly connected to the circuit board;

[0017] After clamping and installing the clamps on the suppressor bodies one by one, the suppressor bodies are placed at corresponding installation positions on the circuit board under the positioning of the metal heat-conducting columns and the positioning through holes;

[0018] Solder the metal thermal conductive column to the corresponding ground pad;

[0019] Solder the two outer electrodes of the suppressor body to the corresponding pads on the circuit board.

[0020] The beneficial effects of the present invention are as follows: during installation, after a positioning through hole cooperating with the metal heat-conducting column is opened on the circuit board, the bracket circuit board is fixedly connected to the circuit board; after the suppressor body is clamped and installed with the clamping parts one by one, the suppressor body is placed at the corresponding installation position on the circuit board under the positioning of the metal heat-conducting column and the positioning through hole; the metal heat-conducting column and the corresponding grounding pad are correspondingly welded; the two outer electrodes of the suppressor body are welded to the corresponding pads on the circuit board; the heat on the suppressor body is conducted to the bracket circuit board through the thermal conductivity of the clamping parts and the metal heat-conducting column and sensed by the sensor, so as to achieve the purpose of conductive heat dissipation and temperature monitoring and alarm, and at the same time, the grounding pin of the suppressor body is led out to the grounding pad on the bracket circuit board, so that the grounding routing design of the suppressor body becomes very simple, saving the circuit board routing space, and greatly reducing the complexity of the circuit design. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work:

[0022] Figure 1 It is a cross-sectional view of the structure of a combined electrostatic suppressor of a preferred embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of clamping the suppressor body of a combined electrostatic suppressor according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0025] The combined electrostatic suppressor of the preferred embodiment of the present invention is as follows Figure 1 See also Figure 2, including an inhibitor body 1 and a combined bracket, the front and rear ends of the inhibitor body 1 are both provided with external electrodes 10, the combined bracket includes a plurality of clamping members 20 corresponding to the inhibitor body 1 one by one, the clamping member 20 is made of metal material, the middle part of the inhibitor body 1 is provided with a clamping positioning groove 11 matched with the clamping member 20, and the clamping member 20 is electrically connected to the ground pin 12 thereof when clamping the inhibitor body 1; a metal heat-conducting column 21 is connected and provided on the clamping member 20, and a positioning through hole 30 matched with the metal heat-conducting column 21 is provided on the circuit board 3; the combined bracket also includes a bracket circuit board 22, and a plurality of grounding pads 23 directly and fixedly connected to the metal heat-conducting column 21 one by one, a sensor 24 corresponding to the temperature of the grounding pad 23, and an alarm are provided on the bracket circuit board 22, and the alarm alarms the outside world when the sensing temperature of the sensor 24 exceeds the threshold value, and the grounding pad 23 is grounded;

[0026] During installation, after opening a positioning through hole 30 that cooperates with the metal heat-conducting column 21 on the circuit board 3, the bracket circuit board 22 is fixedly connected to the circuit board 3; after clamping and installing the clamping piece 20 one by one, the suppressor body 1 is placed at the corresponding installation position on the circuit board 3 under the positioning of the metal heat-conducting column 21 and the positioning through hole; the metal heat-conducting column 21 and the corresponding grounding pad 23 are correspondingly welded; the two external electrodes 10 of the suppressor body 1 are welded to the corresponding pads 31 on the circuit board 3; the heat on the suppressor body 1 is transferred to the bracket circuit board 22 through the thermal conductivity of the clamping piece 20 and the metal heat-conducting column 21 and sensed by the sensor 24, so as to achieve the purpose of conductive heat dissipation and temperature monitoring and alarm, and at the same time, the ground pin of the suppressor body 1 is led out to the grounding pad 23 on the bracket circuit board 22, so that the grounding routing design of the suppressor body 1 becomes very simple, saving the routing space of the circuit board 3, and greatly reducing the complexity of the circuit design.

[0027] Preferably, there is a gap between the bracket circuit board 22 and the circuit board 3, and a cooling fan 26 blowing air toward the gap is provided on the bracket circuit board 22. When the sensed temperature of the sensor 24 exceeds a threshold value, the cooling fan 26 is triggered to start; further, the cooling fan can be set in a manner that relies on sensors to sense and trigger the fan to run, so as to perform temporary emergency heat dissipation treatment.

[0028] Preferably, the bracket circuit board 22 is fixedly connected to the circuit board 3 via a plurality of connecting studs 27 .

[0029] Preferably, the clamping member 20 includes a left clamping arm 200 and a right clamping arm 201, both of which are concave, and one end of each of which is hinged to the metal heat-conducting column 21. After assembly, the lower surface of the clamping member 20 fits the circuit board;

[0030] After the suppressor body 1 is clamped by the left clamp arm 200 and the right clamp arm 201 , the lower surface of the clamp 20 is fitted with the circuit board 3 to resist the left clamp arm 200 and the right clamp arm 201 , so the clamping reliability is good and the positioning is convenient.

[0031] Preferably, the ground pin 12 is disposed in the clamping positioning groove 11 , which has good integrity and is convenient for assembly.

[0032] Preferably, the ground pad 23 is provided with an opening 230 for the metal heat-conducting column 21 to pass through, so as to facilitate welding and fixing.

[0033] A combined electrostatic suppressor application method is applied to the combined electrostatic suppressor as described above, and the implementation method is as follows:

[0034] After a positioning through hole is opened on the circuit board to match the metal heat-conducting column, the bracket circuit board is fixedly connected to the circuit board;

[0035] After clamping and installing the clamps on the suppressor bodies one by one, the suppressor bodies are placed at corresponding installation positions on the circuit board under the positioning of the metal heat-conducting columns and the positioning through holes;

[0036] Solder the metal thermal conductive column to the corresponding ground pad;

[0037] Solder the two outer electrodes of the suppressor body to the corresponding pads on the circuit board;

[0038] The heat on the suppressor body is conducted to the bracket circuit board through the thermal conductivity of the clamp and the metal thermal conductive column and sensed by the sensor, thereby achieving the purpose of conductive heat dissipation and temperature monitoring and alarm. At the same time, the ground pin of the suppressor body is led out to the ground pad on the bracket circuit board, making the ground routing design of the suppressor body very simple, saving circuit board routing space, and greatly reducing the complexity of circuit design.

[0039] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A combined electrostatic suppressor, characterized in that: The invention comprises a suppressor body and a combined bracket, wherein both the front and rear ends of the suppressor body are provided with external electrodes, the combined bracket comprises a plurality of clamping pieces corresponding to the suppressor body one by one, the clamping pieces are made of metal material, a clamping positioning groove cooperating with the clamping piece is provided in the middle of the suppressor body, and the clamping piece is electrically connected to the ground pin thereof when clamping the suppressor body; a metal heat-conducting column is connected to the clamping piece, and a positioning through hole cooperating with the metal heat-conducting column is provided on the circuit board; the combined bracket also comprises a bracket circuit board, and a plurality of grounding pads directly and fixedly connected to the metal heat-conducting columns one by one, a sensor corresponding to the temperature of the grounding pads, and an alarm are provided on the bracket circuit board, and the alarm The device alarms the outside world when the induced temperature of the sensor exceeds a threshold value, and the grounding pad is grounded; there is a gap between the bracket circuit board and the circuit board, and a cooling fan blowing toward the gap is arranged on the bracket circuit board, and the cooling fan is triggered to start when the induced temperature of the sensor exceeds the threshold value; the bracket circuit board and the circuit board are fixedly connected by a plurality of connecting studs; the clamping member includes a left clamping arm and a right clamping arm, and the left clamping arm and the right clamping arm are both concave, and one end of each is hinged to the metal heat-conducting column; after assembly, the lower surface of the clamping member fits the circuit board; the grounding pin is arranged in the clamping positioning groove; the grounding pad is provided with an opening for the metal heat-conducting column to pass through.

2. A combined electrostatic suppressor application method, applied to the combined electrostatic suppressor as claimed in claim 1, characterized in that: Here’s how to do it: After a positioning through hole is opened on the circuit board to match the metal heat-conducting column, the bracket circuit board is fixedly connected to the circuit board; After clamping and installing the clamps on the suppressor bodies one by one, the suppressor bodies are placed at corresponding installation positions on the circuit board under the positioning of the metal heat-conducting columns and the positioning through holes; Solder the metal thermal conductive column to the corresponding ground pad; Solder the two outer electrodes of the suppressor body to the corresponding pads on the circuit board.

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