Isolation protection structure for stacked installation of multiple layers of circuit boards

Abstract

The utility model discloses a multilayer circuit board stacking installation isolation protection structure comprising a plurality of circuit boards arranged in a stacking manner, separator plates arranged between adjacent circuit boards, and a housing pressing the stacked circuit boards; the outer shell and the partition plate are fixed through a male spigot and a female spigot, and the partition plate and the outer shell are both made of EPP foam cotton plates. The advantages are that the EPP material is adopted, and the separator plates are arranged between the circuit boards; and meanwhile, the male seam allowance and the female seam allowance are designed between the structural parts, and after the structural parts are completely assembled, the structural parts can be fixed by an external metal plate shell in a leaning and pressing mode. After the structural parts are completely assembled, due to complete wrapping, an effective air channel can be formed, and heat dissipation of the whole assembly is facilitated. And the cost of an EPP foaming material mold is much lower than that of a plastic part injection mold, so that the product development cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical device structure design, in particular to a multi-layer circuit board stacking installation isolation protection structure. Background Art

[0002] At present, most high-frequency electric knives on the market use screws to fix the circuit board to the sheet metal casing. Multiple circuit boards are often installed in a stacked manner. If isolation is required, mylar sheets must be used for isolation, which not only fails to save space, but also increases the number of internal parts of the machine. In addition, the circuit board is installed on the screw column of the sheet metal casing as a hard connection. After violent transportation or long-term movement and bumping during use, the firmness and service life of the components on the circuit board will be affected. Moreover, this method of installation is more complicated, and often many screws must be installed to fix it. In order to effectively dissipate heat from the circuit board, it is often necessary to design an air duct. If it is a hard connection, it is necessary to consider how to arrange the heat dissipation, how to open the heat dissipation holes, and how to arrange the position of the fan, which is more cumbersome.

[0003] Therefore, it is particularly important to design a structure that can protect the circuit, is easy to install and is conducive to heat dissipation. Utility Model Content

[0004] The utility model aims to solve the technical problems that the existing high-frequency electric knife circuit board has many parts, the bolt fixing and installation are complicated and affect the service life, and the air duct heat dissipation processing is complicated.

[0005] In order to solve the above technical problems, the utility model proposes a multi-layer circuit board stacking installation isolation protection structure, and the technical solution adopted is as follows:

[0006] A multi-layer circuit board stacking installation isolation protection structure includes a plurality of circuit boards arranged in a stacked manner, a partition located between adjacent circuit boards, and a shell for pressing the stacked circuit boards; the shell and the partition are fixed by a male stopper and a female stopper, and the partition and the shell are both made of EPP foam cotton board.

[0007] The utility model adopts EPP material, and a partition is designed between each layer of circuit boards. At the same time, male and female stoppers are designed between the structural parts. After being fully assembled, they can be fixed by the external sheet metal shell by pressing. After the structural parts are fully assembled, they are completely wrapped to form an effective air duct, which is beneficial to the heat dissipation of the entire component. In addition, the cost of EPP foam material mold is much lower than that of plastic injection mold, which reduces the cost of product development.

[0008] In a further preferred embodiment of the technical solution of the utility model, the multi-layer circuit board stacked installation isolation protection structure further comprises a fan (3), and the fan (3) is installed on a certain partition. The stacked installation structure can wrap the circuit board more tightly, and the fan allows the internal air to flow well from the external air inlet to the air outlet where the fan is located, and can form a heat dissipation duct well to facilitate heat dissipation.

[0009] In a further preferred embodiment of the technical solution of the utility model, the housing comprises a base (10) and an upper cover (1), the base (10) and the upper cover (1) are respectively engaged with the upper and lower ends of a plurality of stacked circuit boards, and the base (10) and the upper cover (1) are respectively engaged with the same partition.

[0010] In a further optimization of the technical solution of the utility model, a partition plate is fixed to the outer shell by a male stopper and a female stopper to form an isolation protection structure for stacking and installing multi-layer circuit boards. The structural parts are assembled by using the male stopper and the female stopper, and then the external sheet metal shell is pressed to assemble the structural parts very conveniently, saving assembly costs.

[0011] In a further preferred embodiment of the technical solution of the utility model, the partition includes a surrounding plate and a bottom plate, the surrounding plate is surrounded by a plurality of vertical plates, a notch is provided on one of the vertical plates for convenient internal wiring, a side plate is provided at the notch, and the side plate is connected to the outer shell by a male stopper and a female stopper; the bottom plate is horizontally arranged inside the surrounding plate, and a plurality of air inlets are provided on the bottom plate; the fan (3) is installed on one of the vertical plates. The structural design of the partition is that, firstly, the notch and the side plate are designed to facilitate the wiring arrangement of the partition; secondly, the bottom plate and the air inlets thereon are designed to perform internal heat dissipation together with the fan.

[0012] In a further optimization of the technical solution of the utility model, a slot is provided on the vertical plate, and a guide groove is provided on the wall of the slot to facilitate the rapid installation and fixation of the fan.

[0013] As a further optimization of the technical solution of the utility model, an external air inlet is provided on the base. After the structure is completely wrapped, only the external air inlet and the air outlet at the fan are left in the entire assembly, and the wind can only flow in from the external air inlet, pass through the air inlet, and then flow out from the air outlet at the fan, so that the heat dissipation efficiency is high.

[0014] In a further preferred embodiment of the technical solution of the utility model, positioning members are provided between the partition and the base (10) and between the partition and the upper cover (1) to facilitate quick installation and fixing.

[0015] In a further preferred embodiment of the technical solution of the utility model, the positioning member is a flange and a slot.

[0016] The EPP foam board mentioned in the technical solution of the present utility model is a known material in the art and is known to those skilled in the art.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The utility model discloses a multi-layer circuit board stacked installation isolation protection structure, wherein the structural parts (partitions and outer shells) are made of EPP foam cotton boards, and partitions are designed between each layer of circuit boards; at the same time, the structural parts are connected by male stoppers and female stoppers, wherein after the structural parts are fully assembled, since they are fully wrapped, only the external air inlet and the air outlet at the fan are left in the entire assembly, and an effective air duct can be formed, and the wind can only flow in from the external air inlet and flow out from the air outlet at the fan, which is beneficial to the heat dissipation of the entire assembly.

[0019] 2. The utility model discloses a multi-layer circuit board stacking installation isolation protection structure. After the structural parts are completely assembled, the structural parts can be assembled very conveniently by pressing the external sheet metal shell, thereby saving assembly costs.

[0020] 3. The multi-layer circuit board stacking installation isolation protection structure of the utility model adopts EPP foam board. The EPP foam board is an EPP foam flame retardant material, which is an elastic material with good insulation and flame retardant effects. It has a good shock-absorbing protection effect on the circuit board. Its completed wrapping structure allows the internal air to flow well from the air inlet to the air outlet, and can form a heat dissipation duct well to facilitate heat dissipation; and the cost of EPP foam material mold is much lower than that of plastic injection mold, which reduces product development costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the utility model after the multi-layer circuit board stacking installation isolation protection structure is assembled;

[0022] Figure 2 yes Figure 1 Exploded view of;

[0023] Figure 3 yes Figure 1 BB section view in;

[0024] Figure 4 yes Figure 3 A magnified view of the position in the figure;

[0025] Figure 5 yes Figure 4 The enlarged view of point B in the figure (reflects the male and female stoppers between the upper partition and the base);

[0026] Figure 6 yes Figure 4 The enlarged view of point B in the figure (reflects the male and female stoppers fixed between the lower partition and the base);

[0027] Figure 7 yes Figure 1 Stereoscopic view of

[0028] Among them, 1-upper cover, 2-first circuit board, 3-fan, 4-upper partition, 5-tape, 6-side panel, 7-second circuit board, 8-lower partition, 9-third circuit board, 10-base, 11-male stopper, 12-female stopper, 13-air inlet, 14-external air inlet. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following Figure 1-Figure 7 The present invention is further described in detail with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] like Figure 1 and 2 As shown, this embodiment is a multi-layer circuit board stacking installation isolation protection structure. This embodiment takes the stacking of three layers of circuit boards as an example to further illustrate the technical solution.

[0031] like Figure 2 As shown, a multi-layer circuit board stacked installation isolation protection structure of this embodiment includes a first circuit board 2, a second circuit board 7, a third circuit board 9, a fan 3, an upper partition 4, a lower partition 8, an upper cover 1 and a base 10.

[0032] The upper partition 4, the lower partition 8, the upper cover 1 and the base 10 are all made of EPP foam board. The EPP flame-retardant foam used has an insulating effect and can effectively isolate the contact with the external sheet metal parts.

[0033] The EPP foam board is a known material, which has good flame retardancy and good electrical properties, can effectively isolate the interference between the circuit boards, and has a low density, which can reduce the weight of the machine. The material also has good cushioning properties, which can reduce damage to the circuit boards during transportation.

[0034] like Figure 1 As shown in the figure, the assembly process of the multi-layer circuit board stacking installation isolation protection structure of this embodiment is as follows: first, the base 10 is placed horizontally, the third circuit board 9 is placed horizontally in the base 10, and the third circuit board 9 is gently pressed by hand to firmly fix the third circuit board 9 in the groove of the base 10; then the lower partition 8 is fixed in the base 10, the lower partition 8 presses the third circuit board 9, and the third circuit board 9 is wrapped, and the external air inlet 14 is opened on the base 10. Figure 7 shown.

[0035] The connection between the lower partition 8 and the base 10 is as follows: the lower partition 8 is also installed in the groove of the base 10, and the groove walls around the groove of the base 10 and the outer periphery of the lower partition 8 are fixed by male stoppers 11 and female stoppers 12; wherein, the groove walls around the groove of the base 10 are provided with female stoppers, and the outer periphery of the lower partition 8 is provided with male stoppers. Figure 6 shown.

[0036] Then, place the second circuit board 7 on the lower partition 8, and gently press the second circuit board 7 by hand to make it enter the groove on the upper surface of the lower partition 8, so that the second circuit board 7 is firmly fixed on the lower partition 8. Fix the upper partition 4 on the lower partition 8, and wrap the second circuit board 7.

[0037] The connection relationship between the upper partition 4 and the base 10 and the lower partition 8 and the second circuit board 7 is specifically as follows:

[0038] The lower end of the upper partition 4 is fixed to the base 10 via a male stop 11 and a female stop 12; wherein the male stop is provided on the base 10, and the female stop is provided on the lower end surface of the upper partition 4. Figure 6 As shown. Further, a positioning member is provided between the upper partition 4 and the lower partition 8. Specifically, a slot for engaging the lower partition 8 is provided in the upper partition 4, and the slot engages the outer edge of the lower partition 8. Figure 5 shown.

[0039] Insert the fan 3 into the fan slot of the upper partition 4, place the first circuit board 2 in the upper partition 4, and gently press the first circuit board 2 by hand to secure the first circuit board 2 on the bottom plate in the upper partition 4; fix the upper cover 1 on the upper partition 4 and wrap the first circuit board 2.

[0040] The connection relationship between the upper cover plate 1 and the upper partition plate 4 is as follows: Figure 4 As shown, the upper cover plate 1 and the upper partition plate 4 are fixed by a male stopper 11 and a female stopper 12 ; wherein the male stopper is arranged at the upper end of the upper partition plate 4 , and the female stopper is arranged on the upper cover plate 1 .

[0041] Finally, the side panel 6 is sealed with the tape 5 and assembled into the notch on the upper partition 4 . The upper and lower ends of the side panel 6 are respectively fixed to the upper cover 1 and the base 10 through the male stop and the female stop, and then sealed with the tape 5 .

[0042] The multi-layer circuit board stacking installation isolation protection structure of this embodiment adopts male and female stoppers between the partitions made of EPP foam boards and the outer shell, which can make it easier to assemble the various EPP foam boards together, saving assembly costs. Finally, after the assembly is completed, the external sheet metal shell can use a pressing method to fix the structural parts non-stably.

[0043] The multi-layer circuit board stacking installation isolation protection structure of this embodiment can wrap each circuit board more tightly. The fan 3 and the several air inlets 13 in the upper partition 4 are used inside, so that the internal air flows well from the air inlet to the air outlet, and a heat dissipation duct can be formed well to facilitate heat dissipation. Specifically, the air enters from the external air inlet 14 reserved on the base 10, passes through the several air inlets 13 on the upper partition 4, and enters the upper space of the upper partition 4, and finally is discharged from the air outlet at the fan. Figure 7 shown.

[0044] like Figure 7 As shown, the multi-layer circuit board stacking installation isolation protection structure of this embodiment, after the structure is completely wrapped, only the external air inlet 14 and the air outlet at the fan are left in the entire assembly. The wind can only flow in from the external air inlet, pass through the air inlet 13, and then flow out from the air outlet at the fan 3, with high heat dissipation efficiency.

[0045] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-layer circuit board stacking installation isolation protection structure, comprising a plurality of circuit boards stacked and arranged, characterized in that: It also includes a partition located between adjacent circuit boards and a shell for pressing the stacked circuit boards; the shell and the partition are fixed by a male stopper and a female stopper, and both the partition and the shell are made of EPP foam board.

2. The multi-layer circuit board stacking installation isolation protection structure according to claim 1, characterized in that: The multi-layer circuit board stacking installation isolation protection structure also includes a fan (3), and the fan (3) is installed on a partition board.

3. The multi-layer circuit board stacking installation isolation protection structure according to claim 2, characterized in that: The housing comprises a base (10) and an upper cover (1), wherein the base (10) and the upper cover (1) are respectively engaged with the upper and lower ends of a plurality of stacked circuit boards, and the base (10) and the upper cover (1) are respectively engaged with the same partition.

4. The multi-layer circuit board stacking installation isolation protection structure according to claim 3, characterized in that: A partition plate is fixed to the housing by a male stopper and a female stopper to form an isolation protection structure for stacking and installing multiple layers of circuit boards.

5. The multi-layer circuit board stacking installation isolation protection structure according to claim 4, characterized in that: The partition comprises an enclosure and a bottom plate. The enclosure is surrounded by a plurality of vertical plates. A notch is provided on one of the vertical plates for convenient internal wiring. A side plate is provided at the notch. The side plate is connected to the outer shell by a male stopper and a female stopper. The bottom plate is horizontally arranged inside the enclosure and has a plurality of air inlets. The fan (3) is mounted on one of the vertical plates.

6. The multi-layer circuit board stacking installation isolation protection structure according to claim 5, characterized in that: A slot is provided on the vertical plate, and a guide slot is provided on the slot wall.

7. The multi-layer circuit board stacking installation isolation protection structure according to claim 2, characterized in that: An external air inlet (14) is provided on the base (10).

8. The multi-layer circuit board stacking installation isolation protection structure according to claim 3, characterized in that: Positioning pieces are provided between the partition plate and the base (10) and between the partition plate and the upper cover plate (1).

9. The multi-layer circuit board stacking installation isolation protection structure according to claim 8, characterized in that: The positioning parts are flanges and slots.

Images