Printed Circuit Board for Electronic Detonator Control Module and Electronic Detonator Control Module

Abstract

The present invention relates to the technical field of the production of electronic detonator control modules, and specifically discloses a printed circuit board for an electronic detonator control module. An input circuit group for connecting leg wires and a first circuit connection area arranged adjacent to the input circuit group are provided on a first conductive layer of the printed circuit board; an ignition circuit group for connecting an energy storage capacitor and an igniter is provided on a second conductive layer, and the width of the line segment of the ignition circuit group for connecting the energy storage capacitor is greater than the width of the line segment between the energy storage capacitor and the igniter and the width of the line segment for connecting the igniter. The printed circuit board provided by the present invention has strong reliability, is suitable for batch repetitive manufacturing, can ensure the electrical performance of the entire electronic detonator control module, has high production efficiency and high yield. In addition, since the anti-static structure arranged on the input circuit can discharge static electricity before the static electricity enters the control circuit to protect the internal circuit of the electronic detonator control module, the safety of the module is enhanced, and it is easy to promote.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic detonator control module production, and particularly to a printed circuit board for an electronic detonator control module and an electronic detonator control module. Background Art

[0002] Existing electronic detonator control modules mainly consist of an integrated control chip, an igniter, an energy storage capacitor, etc. connected to a circuit board. The electronic detonator control module, the detonator plug, and the detonator shell form an electronic detonator, and the detonator leg wires pass through the detonator plug and are electrically connected to the electronic detonator control module. Currently, the issues that electronic detonator users generally concern about are still safety and reliability. Although the safety of an electronic detonator mainly depends on its ignition circuit - under the control of the integrated control chip, the current loop formed by the energy storage capacitor, the discharge switch, and the igniter is the ignition circuit of the electronic detonator. However, if the circuit board line structure design layout of the load-bearing circuit is unreasonable, it will increase the difficulty of arranging each component on the circuit board within the specified volume, thereby affecting the reliability and manufacturability of the entire control module. During the production process, continuous testing and adjustment are required, that is, it is difficult to achieve batch and repeated manufacturing, increasing the R & D cost.

[0003] Furthermore, the physical structure and placement position of the wire between the energy storage capacitor and the igniter have a great impact on the electrical performance and electromagnetic compatibility of the entire control module. An unreasonably designed wire structure will melt under the action of the large current generated during the operation of the electronic detonator, directly damaging the electronic detonator control module, resulting in poor reliability of the entire control module circuit board, bringing many impacts to the production and use processes of the electronic detonator control module, such as low production efficiency, low yield rate, and misfires during use. In addition, in the prior art, to prevent the static electricity generated between the detonator leg wires from acting on the electronic control module, an antistatic structure is usually set on the input terminal connected to the circuit board, but this increases the processing difficulty and steps of the module and is difficult to promote. Summary of the Invention

[0004] An embodiment of the present invention provides a printed circuit board for an electronic detonator control module to solve the problems of poor reliability and weak manufacturability of the electronic detonator control module mentioned in the prior art; in addition, an electronic detonator control module is also provided.

[0005] According to one aspect of the present invention, there is provided a printed circuit board for an electronic detonator control module. The printed circuit board includes a first conductive layer provided on one end face, and a second conductive layer provided on the other end face opposite to the first conductive layer and communicating with the first conductive layer. The first conductive layer is provided with an input line group for connecting the leg wires, and a first circuit connection area adjacent to the input line group. A plurality of connection lines for connecting a control chip and electronic devices are provided in the first circuit connection area; the second conductive layer is provided with an ignition line group for connecting an energy storage capacitor and an igniter, and the width of the line segment of the ignition line group for connecting the energy storage capacitor is greater than the line segments between the energy storage capacitor and the igniter and the line segment for connecting the igniter.

[0006] According to an embodiment of the present invention, the ignition line group includes a first printed wire, a second printed wire, and a third printed wire; the first printed wire and the second printed wire are attached in parallel at intervals on both side edges of the printed circuit board; both the first printed wire and the second printed wire include a pin segment and a connection segment connected to the pin segment adjacent to each other as a whole. The connection segment includes a line segment between the energy storage capacitor and the igniter and a line segment for connecting the igniter; the first pin group formed by the pin segments of the first printed wire and the second printed wire at one end of the printed circuit board is used to connect the energy storage capacitor, and the line width of each pin segment in the first pin group is greater than the line width of the adjacent connection segment; the connection segment of the first printed wire extends to the other end of the printed circuit board, and the tail end of the connection segment of the first printed wire and one end of the third printed wire attached to the other end of the printed circuit board form a second pin group for connecting the igniter.

[0007] According to an embodiment of the present invention, the line width of the connection segments of the first printed wire and the second printed wire is not less than 0.3 mm, and the line width of each pin segment in the first pin group is 5 to 10 times the line width of the connection segment.

[0008] According to an embodiment of the present invention, the second conductive layer is further provided with a second circuit connection area for connecting electronic devices. A plurality of connection lines are also provided in the second circuit connection area. The connection segment of the second printed wire and the other end of the third printed wire are both located in the second circuit connection area and do not contact the connection lines in the second circuit connection area.

[0009] According to an embodiment of the present invention, the number of connection lines in the first circuit connection area is more than the number of connection lines in the second circuit connection area.

[0010] According to an embodiment of the present invention, the input line group is a pair of input wires attached to the printed circuit board for connecting the leg wires, and anti-static structures are respectively provided on the input wires.

[0011] According to an embodiment of the present invention, the input wire includes an input pin segment and an input connection segment, and the anti-static structure is disposed on the input pin segment; the input connection segment of the input wire extends into the first circuit connection area and does not contact the connection lines in the first circuit connection area.

[0012] According to an embodiment of the present invention, the anti-static structure is a discharge spike wire connected to the input pin segment and arranged in a continuous spike shape.

[0013] According to an embodiment of the present invention, the anti-static structures are respectively disposed on one side of a pair of the input wires facing each other.

[0014] The beneficial effects of the present invention are as follows: By respectively arranging wire layers on both end faces of the printed circuit board, the present invention increases the layout area of the connection lines. One wire layer is provided with input lines and a circuit connection area for connecting the control chip, and the other wire layer is mainly provided with ignition lines for connecting the energy storage capacitor and the igniter, reducing the layout difficulty of each component on the circuit board within the specified volume range, and also avoiding the large current passing through the wire between the energy storage capacitor and the igniter from affecting the control chip and other electronic components with weak anti-interference ability. Moreover, the wire between the energy storage capacitor and the igniter will not be melted and damaged the electronic detonator control module under the action of the large current generated during the operation of the electronic detonator, improving the electrical performance of the entire control module, with strong reliability, suitable for mass production and manufacturing, high production efficiency and high yield rate, reducing the R & D cost. In addition, since the input line is provided with an anti-static structure, static electricity can be discharged before entering the control circuit to protect the internal circuit of the electronic detonator control module, enhancing the safety of the module, with low processing difficulty, high production efficiency, and easy to promote.

[0015] According to another aspect of the present invention, there is provided an electronic detonator control module, including:

[0016] A body;

[0017] The above-mentioned printed circuit board for an electronic detonator control module, and the printed circuit board is disposed within the body.

[0018] In the electronic detonator control module of this embodiment, the above-mentioned printed circuit board for an electronic detonator control module is provided, improving the electrical performance of the entire control module, with strong reliability, suitable for mass production and manufacturing, high production efficiency and high yield rate, reducing the R & D cost, and being beneficial to protecting the internal circuit of the electronic detonator control module, enhancing the safety of the module.

[0019] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other objects, features and advantages of the present invention more obvious and understandable, the following specific embodiments of the present invention are specifically exemplified. Description of the Drawings

[0020] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0021] Figure 1 FIG. is a schematic structural diagram of a first wire layer on one end face of a printed circuit board for an electronic detonator control module provided by an embodiment of the present invention;

[0022] Figure 2 FIG. is a schematic structural diagram of a second wire layer on the other end face of a printed circuit board for an electronic detonator control module provided by an embodiment of the present invention.

[0023] In the figure: 1 - input wire, 11 - input pin segment, 12 - input connection segment, 2 - anti-static structure, 3 - first circuit connection area, L - connection line, 4 - first printed wire, 5 - second printed wire, A - pin segment, B - connection segment, 45 - first pin group, 6 - second circuit connection area, 7 - third printed wire, 47 - second pin group. Detailed Embodiments

[0024] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0025] An embodiment of the present invention provides a printed circuit board for an electronic detonator control module, as Figure 1 and Figure 2As shown, the printed circuit board includes a first conductive layer provided on one end face, and a second conductive layer provided on the other end face opposite to the first conductive layer and communicated with the first conductive layer through vias. The first conductive layer is provided with an input circuit group for connecting lead wires, and a first circuit connection area 3 provided adjacent to the input circuit group. A plurality of connection lines L for connecting a control chip and electronic devices are provided in the first circuit connection area 3. The second conductive layer is provided with an ignition circuit group for connecting an energy storage capacitor and an igniter, and the width of the line segment of the ignition circuit group for connecting the energy storage capacitor is greater than the width of the line segment between the energy storage capacitor and the igniter and the width of the line segment connecting the igniter.

[0026] In one embodiment of the present invention, as Figure 1 and Figure 2 shown, the ignition circuit group includes a first printed wire 4, a second printed wire 5 and a third printed wire 7. The first printed wire 4 and the second printed wire 5 are attached in parallel at intervals on both side edges of the printed circuit board. The first printed wire 4 and the second printed wire 5 each include a pin segment A and a connection segment B connected to the pin segment A adjacent to each other as a whole. The first pin group 45 formed by the pin segments A of the first printed wire 4 and the second printed wire 5 at one end of the printed circuit board is used to connect the energy storage capacitor (i.e., the line segment for connecting the energy storage capacitor), and the line width of each pin segment A in the first pin group 45 is greater than the line width of the respective adjacent connection segment B (in practical applications, the connection segment B includes the line segment between the energy storage capacitor and the igniter and the line segment connecting the igniter mentioned above, and the connection segment B may also be set as a thick segment - such as the line segment in the second pin group 47 mentioned below, and a thin segment. The width of the thick segment may be greater than, less than or equal to the line width of each pin segment A in the first pin group 45, and can be specifically determined according to the performance of relevant circuit devices). The tail end of the connection segment B of the first printed wire 4 extends to the other end of the printed circuit board, and the tail end of the connection segment B of the first printed wire 4 and one end of the third printed wire 7 attached to the other end of the printed circuit board form a second pin group 47 for connecting the igniter (i.e., the line segment connecting the igniter mentioned above).

[0027] In one embodiment of the present invention, as Figure 2As shown, the line width of the connection section B of the first printed wire 4 and the second printed wire 5 is not less than 0.3 mm. In a specific embodiment of the present invention, the line width of the connection section B is between 0.3 mm and 1 mm. Specifically, the connection section B is designed into a thick section with a larger line width and a thin section with a smaller line width according to the usage. For example, the thin section can be set to 0.3 mm and the thick section can be set to 1 mm (the thick section is the tail end of the connection section B of the first printed wire 4, that is, the thick section of the first printed wire 4 is a pin in the second pin group 47). The line width of each pin section A in the first pin group 45 is 5 to 10 times the line width of the thin section of the connection section B. For example, when the line width of the thin section of the connection section B is 0.3 mm, preferably, the line width of each pin section A in the first pin group 45 is 1.5 - 3 mm, which ensures that the circuit will not melt and will not occupy too much layout space on the circuit board. In a preferred embodiment of the present invention, the line width of the pin section A is 2 mm. Thus, the first printed wire 4 and the second printed wire 5 will not be melted and damaged to the electronic detonator control module under the action of the instantaneous large current generated during the operation of the electronic detonator, improving the electrical performance of the entire control module and having strong reliability.

[0028] In an embodiment of the present invention, as Figure 2 shown, the second wire layer is further provided with a second circuit connection area 6 for connecting electronic devices. The second circuit connection area 6 is also provided with several connection lines. The connection section B of the second printed wire 5 and the other end of the third printed wire 7 are both located in the second circuit connection area 6 and do not contact the connection lines in the second circuit connection area 6. Among them, the second printed wire 5 is a ground wire.

[0029] In an embodiment of the present invention, as Figure 1 and 2 shown, the number of connection lines L in the first circuit connection area 3 is more than the number of connection lines L in the second circuit connection area 6. Thus, the control chip and the main electronic devices can be connected and arranged in the first circuit connection area 3, and a small number or no electronic components are arranged in the second circuit connection area 6, avoiding the interference of the large current passing between the first printed wire 4 and the second printed wire 5 to the control chip and other electronic components, and improving the reliability of the entire control module circuit board.

[0030] In an embodiment of the present invention, as Figure 1As shown, the input line group is a pair of input wires 1 attached to a printed circuit board for connecting leg wires. Anti-static structures 2 are respectively arranged on the input wires 1. The anti-static structures 2 can discharge static electricity before the static electricity enters the control circuit, so as to protect the internal circuit of the electronic detonator control module. Specifically, the input wire 1 includes an input pin segment 11 and an input connection segment 12, and the anti-static structure 2 is arranged on the input pin segment 11. The input connection segment 12 of the input wire 1 extends into the first circuit connection area 3 and does not contact the connection lines in the first circuit connection area 3, so as to facilitate the connection of relevant electronic components of the electronic detonator control circuit.

[0031] In one embodiment of the present invention, as Figure 1 shown, the anti-static structure 2 is a discharge spike wire in the shape of continuous spikes connected to the input pin segment 11, that is, a wire in the shape of continuous spikes is printed directly at the entrance (input pin segment 11) of the input wire 1 on the printed circuit board, which not only enhances the safety of the module, but also has low processing difficulty and is easy to promote.

[0032] In one embodiment of the present invention, as Figure 1 shown, the anti-static structures 2 are respectively arranged on one side of a pair of input wires 1 facing each other. In this embodiment, the anti-static structures 2 are respectively arranged on one side of a pair of input wires 1 facing each other, which reduces the influence of the anti-static structure on the connection between the input wire 1 and the relevant electronic components of the electronic detonator control circuit, and is beneficial to the connection between the input wire 1 and the relevant electronic components of the electronic detonator control circuit.

[0033] In summary, in the embodiment of the present invention, by respectively arranging wire layers on both end faces of the printed circuit board, the layout area of the connection lines is increased. One wire layer is provided with an input line and a circuit connection area for connecting a control chip, and the other wire layer is mainly provided with an ignition line for connecting an energy storage capacitor and an igniter, which reduces the layout difficulty of each component on the circuit board within a specified volume range, and can also avoid the large current passing through the wire between the energy storage capacitor and the igniter from affecting the control chip and other electronic components with weak anti-interference ability. Moreover, the wire between the energy storage capacitor and the igniter will not be fused and damaged the electronic detonator control module under the action of the large current generated during the operation of the electronic detonator, improving the electrical performance of the entire control module, with strong reliability, suitable for mass production and manufacturing, high production efficiency and high yield rate, reducing the R & D cost. In addition, since the input line is provided with the anti-static structure 2, the static electricity can be discharged before the static electricity enters the control circuit, so as to protect the internal circuit of the electronic detonator control module, enhance the safety of the module, with low processing difficulty, high production efficiency and easy to promote.

[0034] In addition, an electronic detonator control module provided in this embodiment includes: a body; the above-mentioned printed circuit board for the electronic detonator control module, and the printed circuit board is arranged inside the body.

[0035] In this embodiment, the above-mentioned printed circuit board for the electronic detonator control module is provided inside the electronic detonator control module, which improves the electrical performance of the entire control module, has strong reliability, is suitable for mass production and manufacturing, has high production efficiency and high yield rate, reduces the R & D cost, and is beneficial to protecting the internal circuit of the electronic detonator control module and enhancing the safety of the module. It should be noted that the structure of the electronic detonator control module is not illustrated in this embodiment, and the structure of the electronic detonator control module can also refer to the related technologies in this field and will not be elaborated here.

[0036] In addition, except for the technical solutions disclosed in this embodiment, for other components of the electronic detonator module and the electronic detonator in the present invention and their working principles, etc., reference can be made to the conventional technical solutions in this technical field, and these conventional technical solutions are not the focus of the present invention and will not be described in detail here.

[0037] It should be noted that in this article, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0038] In the present invention, the term "a plurality" refers to two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as a limitation to the present application.

[0040] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0042] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit of the present invention and the scope protected by the claims. All of these are within the protection scope of the present invention.

Claims

1. A printed circuit board for an electronic detonator control module, the printed circuit board comprising a first conductive layer disposed on one end face, and a second conductive layer disposed on the other end face opposite to and communicating with the first conductive layer, characterized in that, The first conductive layer is provided with an input line group for connecting the leg wires, and a first circuit connection area disposed adjacent to the input line group. A plurality of connection lines for connecting the control chip and the electronic devices are disposed in the first circuit connection area; the second conductive layer is provided with an ignition line group for connecting the energy storage capacitor and the igniter, and the width of the line segment of the ignition line group for connecting the energy storage capacitor is greater than the line segments located between the energy storage capacitor and the igniter and the line segment for connecting the igniter line segment; The ignition line group includes a first printed wire, a second printed wire, and a third printed wire; the first printed wire and the second printed wire are attached in parallel at intervals on both side edges of the printed circuit board; the first printed wire and the second printed wire each include a pin segment and a connection segment connected to the pin segment adjacent to form an integral body. The first pin group formed by the pin segments of the first printed wire and the second printed wire at one end of the printed circuit board is used to connect the energy storage capacitor, and the line width of each pin segment in the first pin group is greater than the line width of the respective adjacent connection segment; the connection segment of the first printed wire extends to the other end of the printed circuit board, and the tail end of the connection segment of the first printed wire and one end of the third printed wire attached to the other end of the printed circuit board form a second pin group for connecting the igniter; The input line group is a pair of input wires attached to the printed circuit board for connecting the leg wires, and anti-static structures are respectively disposed on the input wires.

2. The printed circuit board for an electronic detonator control module according to claim 1, characterized in that, The line width of the connection segments of the first printed wire and the second printed wire is not less than 0.3 mm, and the line width of each pin segment in the first pin group is 5 to 10 times the line width of the connection segment.

3. The printed circuit board for an electronic detonator control module according to claim 1, wherein, The second conductive layer is further provided with a second circuit connection area for connecting the electronic devices. A plurality of connection lines are also disposed in the second circuit connection area. The connection segment of the second printed wire and the other end of the third printed wire are both located in the second circuit connection area and do not contact the connection lines in the second circuit connection area.

4. The printed circuit board for an electronic detonator control module according to claim 3, characterized in that, The number of connection lines in the first circuit connection area is more than the number of connection lines in the second circuit connection area.

5. The printed circuit board for an electronic detonator control module according to claim 1, characterized in that, The input wire includes an input pin segment and an input connection segment, and the anti-static structure is disposed on the input pin segment; the input connection segment of the input wire extends into the first circuit connection area and does not contact the connection lines in the first circuit connection area.

6. The printed circuit board for an electronic detonator control module according to claim 5, characterized in that, The anti-static structure is a discharge spike wire connected to the input pin segment and arranged in a continuous spike shape.

7. The printed circuit board for an electronic detonator control module according to claim 1, characterized in that, The anti-static structures are respectively disposed on one side of a pair of the input wires facing each other.

8. An electronic detonator control module, characterized in that, Comprising: A body; The printed circuit board according to any one of claims 1 to 7 for an electronic detonator control module, and the printed circuit board is disposed in the body.

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