TWI783364B - Electronic device and grounding assembly thereof - Google Patents

Abstract

An electronic device and a grounding assembly thereof are disclosed. The electronic device comprises a casing, a circuit board and a grounding assembly. The casing has a receptacle. The circuit board is disposed within the receptacle and has a first surface and a second surface, an input terminal and an output terminal are disposed on the second surface. The grounding assembly comprises a guiding terminal, a first grounding element and a second grounding element, the guiding terminal is disposed on the first surface of the circuit board, and the first grounding element is disposed adjacent to the guiding terminal. The first grounding element penetrates the circuit board and electrically couples with the guiding terminal and the casing. The second grounding element correspondingly penetrates the circuit board and the guiding element, wherein a first portion of the second grounding element electrically couples with the input terminal and the output terminal of the circuit board, and a second portion of the second grounding element electrically couples with the guiding terminal.

Description

Electronic device and its grounding module

This case relates to a grounding module, especially an electronic device and its grounding module that are suitable for closed electronic devices and can be assembled for high voltage testing.

With the progress of technological development and the innovation of various electronic products, electronic products occupy most of people's daily life. In various electronic products, it is necessary to use a power supply device to convert the mains power into DC power for the operation of electronic products.

Especially in the design and use of outdoor electronic products, in order to avoid damage to the power supply device or the electronic components inside the electronic product due to the high-voltage current surge generated by lightning strikes, the power supply device is generally tested for high voltage during production and manufacturing. (High Potential Test) to confirm that the power supply device complies with safety regulations, and to avoid damage to internal electronic components caused by high-voltage current surges caused by lightning strikes.

As shown in FIG. 1 , a conventional power supply device 1 has a casing 10 and a top cover 11 , and the casing 10 has an accommodating space 12 and an opening 120 . The circuit board 13 is correspondingly arranged in the accommodating space 12 in the case 10 through the opening 120 , and is correspondingly locked on the bottom plate of the case 10 through the two studs 151 , 152 . In this conventional power supply device 1, the circuit board 13 has a first surface 130 and a second surface 131, and the first surface 130 has an input end 132 and an output end 133, and the positions thereof are correspondingly locked on the circuit board 13 the second The studs 151, 152 of the surface 131. Generally speaking, in the conventional method, after the circuit board 13 has been locked on the case 10 , the high voltage test is performed on the power supply device 1 . And after the high-voltage test is over, the two grounding screws 141, 142 are respectively corresponding to the input terminal 132 and the output terminal 133, and are locked downwards from the first surface 130 of the circuit board 13, so that the grounding screws 141, 142 are respectively corresponding to the Locked in the studs 151, 152, so as to achieve the grounding protection of the input end 132 and the output end 133. Finally, the upper cover 11 is correspondingly closed on the opening 120 of the casing 10 to complete the complete assembly of the power supply device 1 .

However, in this assembly process, the whole machine can be assembled and sealed only after the high-voltage test is completed. It is difficult to ensure the stability and safety of the assembly, and the assembly process is complicated, which leads to a waste of production time and is difficult. Ensure product quality.

Therefore, how to develop an electronic device and its grounding module that can improve the above-mentioned problems encountered in the prior art is one of the important issues.

One purpose of this case is to provide an electronic device. Through the structural design of the grounding module, the electronic device can be assembled first. After the high-voltage test, the final grounding protection procedure can be performed without opening the cover to ensure Stability and security of electronic devices.

Another object of this case is to provide a grounding module, which has a conductive terminal, a first grounding piece and a second grounding piece, by first installing the conductive terminal and the first grounding piece on the circuit board electrically, and then The circuit board and other electronic components are installed on the electronic device, and after the high-voltage test is completed, the second grounding piece is passed through the first through hole of the electronic device's casing and correspondingly installed on the circuit board and the conductive terminal to complete The grounding protection program achieves the effect of simple structure and quick assembly, so as to solve the problems of complicated assembly process, waste of production time and cost, and difficulty in ensuring product quality in the conventional technology.

According to the idea of this case, this case provides an electronic device, including: a casing, a circuit board and a grounding module, the casing has an accommodating space; the circuit board is arranged in the accommodating space, and has a first surface and a second surface. The surface is provided with an input end and an output end; the grounding module includes a conductive terminal, a first grounding piece and a second grounding piece, the conductive terminal is arranged on the first surface of the circuit board, and the first grounding piece is adjacent to the lead Connecting terminal; Wherein, the first grounding piece penetrates the circuit board and is electrically connected with the lead terminal and the chassis, the second grounding piece is correspondingly passed through the circuit board and the lead terminal, and the first part of the second grounding piece is connected to the circuit board The input end and the output end of the second grounding member are electrically connected to the lead terminal.

According to the idea of the present case, the casing has a bottom plate, the bottom plate has a first through hole, and the second grounding member passes through the first through hole and is correspondingly locked on the circuit board.

According to the idea of this case, the electronic device further has a valve body, and the valve body seals the first through hole of the bottom plate.

According to the idea of the present case, the conducting terminal has a second through hole for the second part of the second grounding element to pass through.

According to the idea of this case, the conductive terminal is a square hollow shell structure, and has a plurality of legs, and the plurality of legs are correspondingly passed through the circuit board, so that the conductive terminal is clamped on the first surface of the circuit board.

According to the idea of this case, the first grounding member has a third component, and the third component is electrically connected to the conductive terminal through the circuit on the first surface of the circuit board.

According to the idea of this case, the electronic device further has a fixing structure, and the fixing structure is arranged under the second surface of the circuit board. When the first grounding member passes through the circuit board, the fourth part of the first grounding member is correspondingly locked with the fixing structure.

According to the idea of this case, this case provides a grounding module, which is suitable for electronic devices. The electronic device includes a casing and a circuit board. The grounding module includes: a conductive terminal, a first grounding piece and a second grounding piece. The conductive terminal is set on On the first surface of the circuit board; the first grounding piece is adjacent to the conductive terminal, and passes through the circuit board, and is electrically connected with the conductive terminal and the casing; the second grounding piece is correspondingly passed through the circuit board and the conductive terminal, The first component is electrically connected to the input terminal and the output terminal on the second surface of the circuit board, and the second component is electrically connected to the lead terminal.

1: Power supply device

10: Chassis

11: Upper cover

12:Accommodating space

120: opening

13: Circuit board

130: first surface

131: second surface

131: input terminal

132: output terminal

141, 142: Grounding screw

151, 152: studs

100: Electronic device

2: Chassis

20: cover plate

21: Bottom plate

22: First piercing

200: storage space

201: opening

3: circuit board

31: first surface

31a: Line

32: second surface

32a: input terminal

32b: output terminal

33: The first hole

34: Second Hole

35: The third hole

36, 37: fixed structure

4: Grounding module

40: lead terminal

40a: top surface

40b: Second perforation

40c: side

40d: feet

41: The first grounding piece

41a: The third component

41b: The fourth component

42: Second grounding piece

42a: first part

42b: Second component

5: valve body

50: first surface

Figure 1 is a schematic diagram of the internal structure of a conventional power supply device.

Figure 2 is a schematic diagram of the appearance of the electronic device of the preferred embodiment of the present case.

Fig. 3 is a schematic cross-sectional structure diagram of the electronic device of the preferred embodiment of the present application before the high-voltage test.

Fig. 4 is a schematic cross-sectional structure diagram of an electronic device in a preferred embodiment of the present application after a high-voltage test.

Fig. 5 is a schematic structural view of the conductive terminals of the grounding module shown in Fig. 3 .

Fig. 6 is a partial top view structural diagram of the circuit board shown in Fig. 3 .

Fig. 7 is a three-dimensional structure diagram of the grounding module shown in Fig. 4, the first grounding member and the valve body.

Some typical embodiments embodying the features and advantages of the present application will be described in detail in the description in the following paragraphs. It should be understood that this case can have various changes in different aspects without departing from the scope of this case, and that the descriptions and diagrams therein are used for illustration in nature rather than as limitations on this case.

Figure 2 is a schematic diagram of the appearance of the electronic device of the preferred embodiment of the present case. Fig. 3 is a schematic cross-sectional structure diagram of the electronic device of the preferred embodiment of the present application before the high-voltage test. Fig. 4 is a schematic cross-sectional structure diagram of an electronic device in a preferred embodiment of the present application after a high-voltage test. As shown in FIGS. 2 to 4 , the electronic device 100 in this case includes a casing 2 , a circuit board 3 and a grounding module 4 . The casing 2 has an accommodating space 200, and the circuit board 3 is arranged in the accommodating space 200, and the circuit board 3 has a first surface 31 and a second surface 32 arranged correspondingly, and the second surface 32 is provided with an input terminal 32a And the output terminal 32b. The grounding module 4 includes a conducting terminal 40, a first grounding element 41 and a second grounding element 42, the conducting terminal 40 is arranged on the first surface 31 of the circuit board 3, and the first grounding element 41 is adjacent to the conducting terminal 40. As shown in FIG. 4, the first grounding member 41 passes through the circuit board 3 and is electrically connected to the conductive terminal 40 and the casing 2, the second grounding member 42 is correspondingly passed through the circuit board 3 and the conductive terminal 40, and the second The first part 42 a of the two grounding elements 42 is electrically connected to the input end 32 a and the output end 32 b of the circuit board 3 , and the second part 42 b is electrically connected to the lead terminal 40 .

Please refer to FIG. 2 and FIG. 3 , in this embodiment, the electronic device 100 can be but not limited to a sealed power supply. The electronic device 100 has a casing 2, the casing 2 is a square hollow casing, and it has an accommodating space 200 and an opening 201, wherein the accommodating space 200 is used to accommodate the circuit board 3 and other electronic components (not shown), The opening 201 is disposed above the casing 2 and communicates with the accommodating space 200 . As shown in the figure, the housing 2 further has a cover plate 20. After the circuit board 3 and other electronic components are installed in the housing space 200 of the housing 2 through the opening 201 above the housing 2, the cover plate 20 can be correspondingly Cover on the opening 201 to complete the assembly of the whole machine. In addition, the casing 2 also has a bottom plate 21 , and a first through hole 22 is formed on the bottom plate 21 , the first through hole 22 passes through the bottom plate 21 and communicates with the accommodating space 200 . When the electronic device 100 has completed the high voltage test (High After the Potential Test), the subsequent grounding protection procedure is completed through the first through hole 22 , and finally, the valve body 5 is sealed to the first through hole 22 , and the pressure balance inside the electronic device 100 is adjusted through the valve body 5 .

Please refer to FIG. 3 , which is a schematic cross-sectional structure diagram of the aforementioned electronic device 100 after the cover has been assembled. As shown in the figure, the circuit board 3 has been disposed in the accommodating space 200 of the electronic device 100 , and is disposed on the bottom plate 21 of the casing 2 through two fixing structures 36 , 37 . In this embodiment, the fixing structures 36 and 37 may be but not limited to studs, which are disposed on the second surface 32 of the circuit board 3 to assist in supporting the circuit board 3 . As shown in the figure, both the conductive terminal 40 and the first ground member 41 are disposed on the first surface 31 of the circuit board 3 , and the first ground member 41 is adjacent to the conductive terminal 40 .

Please refer to Figure 3 and Figure 5 at the same time. Fig. 5 is a schematic structural view of the conductive terminals of the grounding module shown in Fig. 3 . As shown in FIG. 5, the conductive terminal 40 of the grounding module 4 is a square hollow shell structure formed by a top surface 40a and four side surfaces 40c, but it is not limited thereto. Moreover, the material of the conducting terminal 40 is made of a conductive material, such as a metal material. And, the conducting terminal 40 has a second through hole 40b for passing the second grounding member 42 therein. In some embodiments, the second through hole 40b is disposed on the top surface 40a, and its position is shown in FIG. 3 , corresponding to the second hole 34 of the circuit board 3 and the first through hole 22 on the housing 2 . As shown in Fig. 5, the conductive terminal 40 further has a plurality of legs 40d. In this embodiment, the number of legs 40d is 4, and the 4 legs 40d are connected by two adjacent sides 40c. extended downwards to form. When the conductive terminals 40 are disposed on the circuit board 3 , the four leg portions 40 d are correspondingly pierced through the circuit board 3 , so that the conductive terminals 40 are engaged and disposed on the first surface 31 of the circuit board 3 .

Please refer to Fig. 3, as shown in the figure, the first grounding member 41 of the grounding module 4 is adjacent to the conductive terminal 40, and it is passed through the circuit board 3 from top to bottom, and then connected to the bottom of the circuit board 3. The fixing structures 36 are mutually locked. Taking this embodiment as an example, the first grounding member 41 is made of conductive material, and it can be but not limited to be a screw. The first ground member 41 has a third part 41a and a fourth part 41b. In this embodiment, The third part 41a is the head of the screw, and the fourth part 41b is the foot of the screw. When the first ground member 41 passes through the circuit board 3 and is correspondingly locked downward in the stud of the fixed structure 36, it can pass through the fourth member 41b, that is, its foot, to directly or indirectly connect with the housing. The bottom plate 21 of 2 is electrically connected.

Please refer to Figure 3 and Figure 6 at the same time. Fig. 6 is a partial top view structural diagram of the circuit board shown in Fig. 3 . As shown in the figure, there are a plurality of first holes 33, second holes 34, and third holes 35 on the circuit board 3, wherein the position of the first holes 33 corresponds to the fixing structure 36 below the circuit board 3, and is used for the first hole 33. A ground member 41 passes through it. The position of the second hole 34 is corresponding to the first through hole 22 on the bottom plate 21 of the housing 2 and the second through hole 40b of the conductive terminal 40, for the second grounding member 42 to pass through correspondingly therein. In this embodiment, the third holes 35 are a plurality of square holes, the number and positions of which correspond to the plurality of feet 40d of the conductive terminal 40 (as shown in FIG. 5 ). As shown in FIG. 3 and FIG. 6 , when the first ground member 41 passes through the circuit board 3 , it passes through the first hole 33 on the first surface 31 , and is correspondingly locked with the fixing structure 36 downward. At this time, the third part 41a of the first ground member 41, that is, its head, is arranged on the first surface 31 of the circuit board 3, and forms an electrical connection with the conductive terminal 40 through the circuit 31a on the first surface 31. connect. It can be seen from FIG. 6 that the line 31a is connected to the first hole 33 and the third hole 35. In other words, when the conductive terminal 40 is correspondingly arranged on the first surface 31 of the circuit board 3, it is arranged on the side surface of the circuit board 3. 40c can be electrically connected to the third part 41a of the first grounding member 41 through the wire 31a.

Please refer to Fig. 3, Fig. 4 and Fig. 7 at the same time. Fig. 7 is a three-dimensional structural diagram of the grounding module shown in Fig. 4, the first grounding piece and the valve body. In this embodiment, the second surface 32 of the circuit board 3 is provided with an input terminal 32 a and an output terminal 32 b , but the input terminal 32 a and the output terminal 32 b are not directly connected to the first ground member 41 . Moreover, the input end 32 a and the output end 32 b are respectively disposed on opposite sides of the second hole 34 and adjacent to the second hole 34 . In some embodiments, the input end 32a and the output end 32b are the primary side and the secondary side respectively, but not limited thereto. When the electronic device 100 is as described above, the circuit board 3 and other electrical After the sub-components are installed in the accommodating space 200 inside the electronic device 100, the cover plate 20 is sealed and covered on the opening 201 to complete the capping process. In other words, the complete assembly of the electronic device 100 has been completed at this time. And follow-up product high voltage test can be carried out. In this embodiment, the high voltage test is to perform the high voltage test of the primary side loop and the high voltage test of the secondary side loop respectively, but it is not limited thereto. And when performing such high-voltage tests, the grounding needs to be removed before the test can be performed. Therefore, in this embodiment, the final grounding protection procedure is performed after the high-voltage test is completed. In this embodiment, since the electronic device 100 has been fully assembled, the grounding protection procedure will not open the cover 20 of the electronic device 100, but will be carried out through the first through hole 22 on the bottom plate 21 of the housing 2 In this way, under the premise of taking into account the airtightness of the device, the grounding reset can be performed quickly and reliably without damaging the airtightness of the device, so as to facilitate the subsequent airtightness test of the product.

As shown in Figure 4, the grounding protection procedure is to pass the second grounding member 42 through the first through hole 22 of the bottom plate 21 first, and then penetrate upwards, and make the second grounding member 42 correspondingly pass through the circuit board from bottom to top. 3 of the second hole 34, and continue upward through the second hole 40b on the top plate 40a of the lead terminal 40. In this embodiment, the second grounding member 42 is also made of conductive material, and can be but not limited to be a screw. The second ground member 42 has a first part 42a and a second part 42b. In this embodiment, the first part 42a is the head of the screw, and the second part 42b is the foot of the screw. As shown in Figure 4, when the second ground member 42 passes through the first through hole 22 of the housing 2, it is correspondingly inserted and locked on the second surface 32 of the circuit board 3, so that the first part 42a, namely Its head is correspondingly arranged on the second surface 32 of the circuit board 3 , and is electrically connected with the input end 32 a and the output end 32 b on the second surface 32 . And, because the second part 42b of the second ground member 42 , ie, its foot, passes upwards corresponding to the second through hole 40b of the conducting terminal 40 , so it also forms an electrical connection with the conducting terminal 40 . In this way, the input end 32a, the output end 32b and the conducting terminal 40 are electrically connected through the second grounding member 42, and then the conducting terminal 40 is electrically conducted with the bottom plate 21 of the housing 2 through the first grounding member 41, thereby This enables the electronic device 100 to be connected conveniently and effectively without opening the cover. ground protection program. Finally, the valve body 5, such as a gas release valve, but not limited to this, is sealed on the first perforation 22 of the bottom plate 21 of the housing 2, so as to ensure the pressure balance inside the electronic device 100 and ensure the internal pressure of the electronic device 100. Stability and safety of parts. As shown in FIG. 7 , it can be seen that the first surface 50 of the valve body 5 completely seals the first through hole 22 and is flush with the surface of the bottom plate 21 . In some embodiments, the valve body 5 is made of silicon rubber or rubber material, but it is not limited thereto, and it can be changed arbitrarily according to actual implementation conditions. It can be seen that through the grounding module 4 and its grounding protection procedure in this case, not only the grounding structure is simple, but also the assembly process is simple and fast, which is more conducive to saving manpower and cost in production.

To sum up, this case provides an electronic device and its grounding module. The grounding module has a conductive terminal, a first grounding piece, and a second grounding piece. Installed on the circuit board, after the circuit board and other electronic components are installed on the electronic device, and after the high-voltage test is completed, the second grounding part is passed through the first hole of the electronic device's casing and correspondingly installed on the circuit board and On the lead terminal, and then complete the grounding protection procedure, which makes the production and assembly process easier and faster, and can achieve a simple structure, quick assembly and facilitate the high-voltage test and subsequent air-tightness test on the premise of taking into account the airtightness of the product. effect. Therefore, through the electronic device and its grounding module in this case, not only can the assembly manpower and man-hours be saved, but also the electronic device can be assembled as a whole first, and after the high-voltage test, the final assembly can be performed without opening the cover. Grounding protection procedures to ensure the stability and safety of electronic devices.

This case can be modified in various ways by people who are familiar with this technology, but it does not deviate from the intended protection of the scope of the attached patent application.

100: Electronic device

2: Chassis

20: cover plate

21: Bottom plate

22: First piercing

3: circuit board

31: first surface

31a: Line

32: second surface

32a: input terminal

32b: output terminal

36, 37: fixed structure

40: lead terminal

40a: top surface

40b: Second perforation

41: The first grounding piece

41a: The third component

41b: The fourth component

42: Second grounding piece

42a: first part

42b: Second component

5: valve body

Claims (9)

An electronic device, comprising: a housing with an accommodating space; a circuit board disposed in the accommodating space, having a first surface and a second surface, and the second surface is provided with an input terminal and a output end; and a grounding module, including a conducting terminal, a first grounding piece and a second grounding piece, the conducting terminal is arranged on the first surface of the circuit board, and the first grounding piece is adjacent to provided on the conducting terminal; wherein, the first grounding member passes through the circuit board and is electrically connected to the conducting terminal and the casing, the second grounding member passes through the circuit board and the conducting terminal correspondingly, and A first part of the second grounding element is electrically connected to the input end and the output end of the circuit board, and a second part of the second grounding element is electrically connected to the conducting terminal; wherein, the conducting terminal has A second through hole for the second part of the second grounding element to pass through. The electronic device according to claim 1, wherein the casing has a bottom plate, and the bottom plate has a first through hole, and the second grounding member passes through the first through hole and is correspondingly locked on the circuit board. The electronic device according to claim 2, wherein the electronic device further has a valve body, and the valve body seals the first through hole of the bottom plate. The electronic device as described in claim 1, wherein the conducting terminal is a square hollow shell structure, and has a plurality of feet, and the plurality of feet are correspondingly passed through the circuit board, so that the conducting terminal is stuck Set on the first surface of the circuit board. The electronic device as claimed in claim 1, wherein the first ground member has a third component, and the third component is electrically connected to the conductive terminal through a line on the first surface of the circuit board. The electronic device as described in claim 1, wherein the electronic device further has a fixing structure, the fixing structure is arranged under the second surface of the circuit board, when the first grounding member passes through the circuit board, the first A fourth part of the grounding element is correspondingly locked with the fixing structure. A grounding module, suitable for an electronic device, the electronic device includes a casing and a circuit board, the grounding module includes: a conductive terminal, arranged on a first surface of the circuit board; a first grounding a piece, adjacent to the conductive terminal, and pierced through the circuit board, and electrically connected with the conductive terminal and the casing; and a second grounding piece, correspondingly pierced through the circuit board and the conductive terminal, so that making a first component electrically connected to an input terminal and an output terminal on the second surface of the circuit board, and a second component electrically connected to the conducting terminal; wherein the conducting terminal has a second through hole, The second part of the second grounding element is passed therethrough. The grounding module as described in claim 7, wherein the conductive terminal is a square hollow shell structure, and has a plurality of feet, and the plurality of feet are correspondingly passed through the circuit board, so that the conductive terminal The card is set on the first surface of the circuit board. The grounding module according to claim 7, wherein a third part of the first grounding element is electrically connected to the conductive terminal through a line on the first surface of the circuit board.

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