阅读说明：本技术 线路板及电压测量传感器保护装置 (Circuit board and voltage measurement sensor protection device ) 是由 曹磊磊 黄云钟 于 2018-09-06 设计创作，主要内容包括：本发明提供了一种线路板及电压测量传感器保护装置,该线路板包括：多个绝缘层和多个导电层,绝缘层与导电层间隔设置,在线路板的上下表面为导电层,绝缘层为环氧树脂层；在导电层上设置控深孔,在控深孔中设置螺接器件,以与外部元器件进行电连接；其中,线路板的厚度大于或等于预设厚度阈值。由于线路板的绝缘层采用环氧树脂制成,并且线路板的厚度足够厚,所以在面临高压下,也能够保证线路板的稳定性能,不会发生凸出、破裂或爆炸现象,避免发生安全事故。(The invention provides a circuit board and a voltage measurement sensor protection device, wherein the circuit board comprises: the circuit board comprises a plurality of insulating layers and a plurality of conducting layers, wherein the insulating layers and the conducting layers are arranged at intervals, the upper surface and the lower surface of the circuit board are provided with the conducting layers, and the insulating layers are epoxy resin layers; arranging a deep control hole on the conductive layer, and arranging a screw joint device in the deep control hole so as to be electrically connected with an external component; the thickness of the circuit board is greater than or equal to a preset thickness threshold value. Because the insulating layer of circuit board adopts epoxy to make to the thickness of circuit board is enough thick, so under face high pressure, also can guarantee the stability ability of circuit board, can not take place protrusion, fracture or explosion phenomenon, avoid taking place the incident.)

1. A circuit board, comprising: the circuit board comprises a plurality of insulating layers and a plurality of conducting layers, wherein the insulating layers and the conducting layers are arranged at intervals, the upper surface and the lower surface of the circuit board are provided with the conducting layers, and the insulating layers are epoxy resin layers;

arranging a deep control hole on the conductive layer, and arranging a screw joint device in the deep control hole so as to be electrically connected with an external device;

the thickness of the circuit board is greater than or equal to a preset thickness threshold value.

2. The wiring board of claim 1, further comprising an oil layer;

the oil layer coats the outer surface of the circuit board.

3. The wiring board of claim 1, wherein the insulating layer comprises three layers and the conductive layer comprises four layers.

4. The wiring board of claim 3, wherein the thickness of the wiring board is greater than or equal to 29mm, the thickness of the conductive layer is 1oz, the thickness of the insulating layer adjacent to the upper surface and the insulating layer adjacent to the lower surface is greater than or equal to 14mm, and the thickness of the insulating layer positioned in the middle is 1 mm.

5. The wiring board of claim 1, wherein the depth control holes of the conductive layers of the upper and lower surfaces are disposed at the center positions of the conductive layers of the upper and lower surfaces and extend into the adjacent insulating layers;

the depth control hole of the conducting layer in the middle part is arranged in the center of the side face of the conducting layer in the middle part and extends into the insulating layer inside the conducting layer in the middle part.

6. The wiring board of claim 5, wherein the hole diameter of the controlled depth hole is 0.5mm and the depth is 2 mm.

7. The cord plate of claim 1, wherein the threaded means is a copper rivet.

8. The wiring board of claim 1, wherein the insulating layer and the conductive layer are fixedly connected by adhesion.

9. A voltage measurement sensor protection device, comprising: a sensor, an actuator module and a circuit board according to any one of claims 1-8;

the circuit board is electrically connected with the execution module and the sensor respectively.

10. The voltmeter sensor protection device of claim 9, wherein said circuit board is electrically connected to said sensor by means of screw-on means on upper and lower surfaces, and said circuit board is electrically connected to said actuating module by means of screw-on means on a side surface.

Technical Field

The embodiment of the invention relates to the technical field of printed circuit boards, in particular to a circuit board and voltage measurement sensor protection device.

Background

The safety of power utilization receives more and more attention from people, and the damage of electrical equipment or the emergence of personal electric shock casualty accident not only take place in resident's daily life, more generally exist in the low voltage distribution network in the pit in colliery moreover. The underground coal mine power supply system can effectively ensure the safety and reasonability of the underground power grid and can also promote the economical efficiency of the arrangement of the underground coal mine power grid system. However, due to the underground humid environment of the coal mine, power supply equipment such as a transformer and a starter are prone to short-circuit and other faults, and the safety and reliability coefficient of the whole power supply system is reduced linearly. The reason is often caused by dangerous voltage carried by parts such as housings of electric equipment, metal bases and the like.

Therefore, aiming at potential safety hazards possibly caused by the electrification of the metal shell of the equipment, in order to avoid safety accidents occurring underground the coal mine to the maximum extent, the metal shell electrification detection equipment is provided, and the metal shell electrification detection equipment comprises a voltage measurement sensor protection device.

Existing voltage measurement sensor protection devices include a high voltage capacitor. When the high-voltage capacitor works under the condition that the voltage exceeds the rated voltage, the high-voltage capacitor is made of glass or common plastics, so that the high-voltage capacitor is easy to bulge, break or even explode, gas possibly exists in a coal mine at any time, and once the capacitor is exploded, immeasurable serious results can be caused.

Disclosure of Invention

The embodiment of the invention provides a circuit board and a voltage measurement sensor protection device, which solve the technical problem that when a high-voltage capacitor works under the condition that the voltage exceeds the rated voltage, the high-voltage capacitor is easily protruded, broken and even exploded because the high-voltage capacitor is made of glass or common plastic in the prior art.

In a first aspect, an embodiment of the present invention provides a circuit board, including: the circuit board comprises a plurality of insulating layers and a plurality of conducting layers, wherein the insulating layers and the conducting layers are arranged at intervals, the upper surface and the lower surface of the circuit board are provided with the conducting layers, and the insulating layers are epoxy resin layers;

arranging a deep control hole on the conductive layer, and arranging a screw joint device in the deep control hole so as to be electrically connected with an external device;

the thickness of the circuit board is greater than or equal to a preset thickness threshold value.

Further, the wiring board, as described above,

further, the circuit board as described above, further comprising an oil layer;

the oil layer coats the outer surface of the circuit board.

Further, as for the wiring board described above, the insulating layer includes three layers, and the conductive layer includes four layers.

Further, according to the wiring board, the thickness of the wiring board is greater than or equal to 29mm, the thickness of the conductive layer is 1oz, the thickness of the insulating layer adjacent to the upper surface and the insulating layer adjacent to the lower surface is greater than or equal to 14mm, and the thickness of the insulating layer located in the middle is 1 mm.

Further, as for the circuit board, the hole for controlling the depth of the conductive layers on the upper and lower surfaces is arranged at the center of the conductive layers on the upper and lower surfaces and extends into the adjacent insulating layers;

the depth control hole of the conducting layer in the middle part is arranged in the center of the side face of the conducting layer in the middle part and extends into the insulating layer inside the conducting layer in the middle part.

Further, according to the circuit board, the aperture of the deep control hole is 0.5mm, and the depth of the deep control hole is 2 mm.

Further, as for the circuit board, the screw connection device is a copper rivet.

Further, according to the wiring board, the insulating layer and the conductive layer are fixedly connected by adhesion.

In a second aspect, an embodiment of the present invention provides a voltage measurement sensor protection device, including: a sensor, an execution module and the circuit board of the first aspect;

the circuit board is electrically connected with the execution module and the sensor respectively.

Further, according to the voltage measurement sensor protection device, the circuit board is electrically connected with the sensor through the screw connection devices on the upper surface and the lower surface, and the circuit board is electrically connected with the execution module through the screw connection devices on the side surface.

The embodiment of the invention provides a circuit board and a voltage measurement sensor protection device, wherein the circuit board comprises: the circuit board comprises a plurality of insulating layers and a plurality of conducting layers, wherein the insulating layers and the conducting layers are arranged at intervals, the upper surface and the lower surface of the circuit board are provided with the conducting layers, and the insulating layers are epoxy resin layers; arranging a deep control hole on the conductive layer, and arranging a screw joint device in the deep control hole so as to be electrically connected with an external device; the thickness of the circuit board is greater than or equal to a preset thickness threshold value. Because the insulating layer of circuit board adopts epoxy to make to the thickness of circuit board is enough thick, so under face high pressure, also can guarantee the stability ability of circuit board, can not take place protrusion, fracture or explosion phenomenon, avoid taking place the incident.

It should be understood that what is described in the summary above is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are 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 structural diagram of a circuit board according to a first embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of a circuit board according to a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a voltage measurement sensor protection device according to a third embodiment of the present invention.

Reference numerals

1-circuit board 11,111,112,113,114-conducting layer 12,121,122,123-insulating layer 13-screwed device 14-controlled deep hole 2-sensor 3-execution module

Detailed Description

Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and the embodiments of the present invention are illustrative only and are not intended to limit the scope of the present invention.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, and in the above-described drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

An application scenario of the circuit board provided by the embodiment of the present invention is described below. Specifically, the circuit board can replace a high-voltage capacitor, so that the circuit board can be adopted to replace the circuit board in a circuit with the high-voltage capacitor. The protection device can be a household appliance, a transformer or a voltage measurement sensor protection device and the like.

Embodiments of the present invention will be described below with reference to the accompanying drawings.