Fixture for spraying conformal coating on two sides of inverter mainboard

Abstract

The utility model relates to the technical field of inverter production equipment, in particular to a clamp for spraying conformal coating on two sides of an inverter mainboard, which comprises a clamp lower die body, first clamping grooves are arranged at two ends of the top of the clamp lower die body, and a clamp upper die body is arranged at the top of the clamp lower die body. And second clamping grooves are formed in the two ends of the bottom of the clamp upper die body. According to the PCBA fixture, the fixture upper die body is arranged at the top of the fixture lower die body, PCBA products are placed in the first clamping groove and the second clamping groove, and the buckle position avoiding positions and the buckle positions are used in cooperation, so that the fixture upper die body is conveniently limited; a plurality of magnets I are magnetically attracted with magnets II at corresponding positions, so that the clamp lower die body and the clamp upper die body are fixed, and the PCBA product is conveniently limited, fixed and shielded by utilizing the clamp lower die body and the clamp upper die body; and the influence on the product quality of the PCBA product due to collision during transfer of the PCBA product is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of inverter production equipment, in particular to a clamp for double-sided spraying of conformal coating on an inverter mainboard. Background Art

[0002] The inverter is a converter that converts DC power (battery, storage bottle) into constant frequency and voltage or frequency and voltage regulated AC power (usually 220V, 50Hz sine wave). It consists of an inverter bridge, control logic and filter circuit. Inverter products are generally used outdoors or in harsh environments. In order to ensure its long-term stable operation, the product requirements are relatively strict. It needs to be waterproof, moisture-proof, dust-proof, etc. The motherboard inside also needs to be waterproof, moisture-proof, dust-proof, etc. To achieve this effect, the current common process is to spray three-proof paint for protection. However, since both sides of the PCBA need to be sprayed, the general process is to spray the TOP surface and then the BOT surface. This requires two sprayings, which is inefficient. The product also needs to be repeatedly turned over. There is a risk of bumping every time the PCBA is turned over, and multiple turnovers will bring hidden dangers to the quality of the PCBA. Utility Model Content

[0003] The utility model aims to provide a fixture for double-sided spraying of conformal coating on inverter mainboard to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A fixture for double-sided spraying of triple-proof paint on an inverter mainboard comprises a fixture lower mold body, both ends of the top of the fixture lower mold body are provided with a first card slot, the top of the fixture lower mold body is provided with a fixture upper mold body, and both ends of the bottom of the fixture upper mold body are provided with a second card slot, the second card slot corresponds to the first card slot at the corresponding position, the top of the fixture upper mold body corresponding to the two second card slots are fixedly connected with a shielding insert one, and the top of the fixture upper mold body corresponding to the two second card slots is fixedly connected with a shielding insert two.

[0006] Furthermore, a rectangular hole is formed at one end of the top of the lower mold body of the clamp, and a rectangular plate is fixedly connected to the interior of the rectangular hole, and two-dimensional codes are laser engraved at the middle positions of both sides of the rectangular plate.

[0007] Furthermore, a rectangular hole 2 is opened at one end of the top of the upper mold body of the clamp, and a rectangular plate 2 is fixedly connected to the inside of the rectangular hole 2. A QR code is laser engraved at the middle position of both sides of the rectangular plate 2, and the position of the rectangular plate 2 corresponds to the position of the rectangular plate 1.

[0008] Furthermore, both side edges of the upper mold body of the clamp are provided with a plurality of buckle avoidance spaces, and a magnet block 1 is fixedly connected to the positions at one end of the multiple buckle avoidance spaces corresponding to the top of the lower mold body of the clamp, and the magnet block 1 is slidably plugged into one end inside the buckle avoidance spaces at the corresponding positions.

[0009] Preferably, the thickness of the clamp upper mold body is the same as the thickness of the clamp lower mold body, and the length of the buckle position is greater than the thickness of the clamp upper mold body.

[0010] Furthermore, a plurality of circular holes 1 are evenly formed on the lower mold body of the clamp, and a magnet block 1 is fixedly connected inside the circular hole 1, and a plurality of circular holes 2 are evenly formed on the upper mold body of the clamp, and a magnet block 2 is fixedly connected inside the rectangular plate 2.

[0011] Preferably, the inner diameter of the circular hole one is the same as the inner diameter of the circular hole two, and the length of the magnet block one is the same as the length of the magnet block two.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. A fixture upper mold body is arranged on the top of the fixture lower mold body, and the PCBA product is placed inside the card slot 1 and the card slot 2, and the buckle position, the empty position and the buckle position are used together to limit the fixture upper mold body, and then a plurality of magnet blocks 1 are respectively magnetically attracted to the magnet blocks 2 at the corresponding positions, so as to fix the fixture lower mold body and the fixture upper mold body, and the fixture lower mold body and the fixture upper mold body are used to facilitate the limited fixation and shielding protection of the PCBA product, thereby avoiding the PCBA product from being affected by bumps during transportation, and using the QR code on the fixture for double-sided spraying of three-proof paint on the inverter mainboard, so as to facilitate the three-proof paint spraying equipment and the infrared furnace to process the fixture for double-sided spraying of three-proof paint on the inverter mainboard wrapped with the PCBA product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the lower die body of the clamp in the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the upper mold body of the clamp in the utility model;

[0017] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0018] In the figure: 100, the lower mold body of the clamp; 101, a slot; 102, a round hole; 110, a buckle position; 120, a rectangular plate; 130, a magnet block; 200, the upper mold body of the clamp; 201, a slot; 202, a buckle position avoidance position; 203, a round hole; 230, a rectangular plate; 210, a shielding insert; 220, a shielding insert; 240, a magnet block; 2. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 As shown, a fixture for double-sided spraying of three-proof paint on an inverter mainboard includes a fixture lower mold body 100, and both ends of the top of the fixture lower mold body 100 are provided with a card slot 101, the top of the fixture lower mold body 100 is provided with a fixture upper mold body 200, and both ends of the bottom of the fixture upper mold body 200 are provided with a card slot 201, the card slot 201 corresponds to the card slot 101 at the corresponding position, and the positions of the top of the fixture upper mold body 200 corresponding to the two card slots 201 are fixedly connected with a shielding insert 1 210, and the fixture upper mold body The positions of the two card slots 201 at the top of 200 are fixedly connected with shielding inserts 220. When in use, the lower mold body 100 of the clamp is placed on the docking platform track of the three-proof paint spraying line, and the PCBA product is placed inside the corresponding card slot 101, and then the upper mold body 200 of the clamp is covered. The lower mold body 100 of the clamp and the upper mold body 200 of the clamp are used to facilitate the limiting fixation and shielding protection of the PCBA product, thereby avoiding the product quality of the PCBA product being affected by bumps during transportation.

[0021] A rectangular hole 1 is provided at one end of the top of the lower mold body 100 of the clamp, and a rectangular plate 120 is fixedly connected to the inside of the rectangular hole 1. Two-dimensional codes are laser engraved at the middle positions on both sides of the rectangular plate 120. A rectangular hole 2 is provided at one end of the top of the upper mold body 200 of the clamp, and a rectangular plate 230 is fixedly connected to the inside of the rectangular hole 2. Two-dimensional codes are laser engraved at the middle positions on both sides of the rectangular plate 230. The position of the rectangular plate 230 corresponds to the position of the rectangular plate 120. Multiple There are buckle avoidance spaces 202, and magnet blocks 130 are fixedly connected at positions on the top of the clamp lower mold body 100 corresponding to one end of the buckle avoidance spaces 202, and the magnet block 130 is slidably plugged into one end inside the buckle avoidance spaces 202 at the corresponding positions, the thickness of the clamp upper mold body 200 is the same as the thickness of the clamp lower mold body 100, and the length of the buckle 110 is greater than the thickness of the clamp upper mold body 200, and the buckle avoidance spaces 202 and the buckle 110 are used together to facilitate limiting the clamp upper mold body 200.

[0022] A plurality of circular holes 102 are evenly arranged on the lower mold body 100 of the clamp, and a magnet block 130 is fixedly connected to the inside of the circular hole 102. A plurality of circular holes 203 are evenly arranged on the upper mold body 200 of the clamp, and a magnet block 240 is fixedly connected to the inside of the rectangular plate 230. The inner diameter of the circular hole 102 is the same as the inner diameter of the circular hole 203, and the length of the magnet block 130 is the same as the length of the magnet block 240. The plurality of magnet blocks 130 are magnetically attracted to the magnet blocks 240 at corresponding positions, so that the top of the lower mold body 100 of the clamp fits with the bottom of the upper mold body 200 of the clamp.

[0023] Working principle: When in use, the lower mold body 100 of the clamp is placed on the docking platform track of the three-proof paint spraying line, and the PCBA product is placed inside the corresponding card slot 101, and then the upper mold body 200 of the clamp is covered, so that the buckle position 110 is slidably plugged with one end inside the buckle position avoidance position 202 at the corresponding position, and a plurality of magnet blocks 130 are magnetically attracted to the magnet blocks 240 at the corresponding positions, so that the top of the lower mold body 100 of the clamp is fitted with the bottom of the upper mold body 200 of the clamp, and then the PCBA product is fixed inside the card slot 101 and the card slot 201, and finally the PCBA product is fixed inside the card slot 101 and the card slot 201. The wires on the CBA that may affect the spraying of the three-conformal paint are fixed with wrinkled tape to prevent the wires from fluctuating. After the above operations are completed, the three-conformal paint spraying equipment will give a signal to the docking station after spraying the previous PCBA, and the docking station will start to run. The three-conformal paint spraying equipment reads the QR code on the fixture used for double-sided spraying of the inverter motherboard with three-conformal paint, and starts the spraying operation after identifying the PCBA. When the PCBA is sprayed on the TOP side and baked in an infrared furnace, the equipment automatically recognizes the QR code and flips to the BOT side, sprays the three-conformal paint again, and then goes through the infrared furnace for baking to complete the spraying on both sides, and finally outputs the sprayed PCBA.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fixture for double-sided spraying of conformal coating on inverter mainboard, comprising a fixture lower mold body (100), characterized in that: Both ends of the top of the clamp lower mold body (100) are provided with a first card slot (101), the top of the clamp lower mold body (100) is provided with a clamp upper mold body (200), and both ends of the bottom of the clamp upper mold body (200) are provided with a second card slot (201), the second card slot (201) corresponds to the first card slot (101) at the corresponding position, the top of the clamp upper mold body (200) corresponds to the two second card slots (201) and is fixedly connected with a shielding insert one (210), and the top of the clamp upper mold body (200) corresponds to the two second card slots (201) and is fixedly connected with a shielding insert two (220).

2. A fixture for double-sided spraying of conformal coating on inverter mainboard according to claim 1, characterized in that: A rectangular hole 1 is opened at one end of the top of the clamp lower mold body (100), and a rectangular plate 1 (120) is fixedly connected inside the rectangular hole 1, and two-dimensional codes are laser engraved at the middle positions of both sides of the rectangular plate 1 (120).

3. A fixture for double-sided spraying of conformal coating on inverter mainboard according to claim 1, characterized in that: A rectangular hole 2 is opened at one end of the top of the upper mold body (200) of the clamp, and a rectangular plate 2 (230) is fixedly connected inside the rectangular hole 2. A QR code is laser engraved at the middle position on both sides of the rectangular plate 2 (230), and the position of the rectangular plate 2 (230) corresponds to the position of the rectangular plate 1 (120).

4. A fixture for double-sided spraying of conformal coating on inverter mainboard according to claim 1, characterized in that: Both sides of the upper mold body (200) of the clamp are provided with a plurality of buckle avoidance spaces (202); the top of the lower mold body (100) of the clamp is fixedly connected with a magnet block (130) at positions corresponding to one end of the plurality of buckle avoidance spaces (202); and the magnet block (130) is slidably plugged into one end of the buckle avoidance spaces (202) at the corresponding positions.

5. A fixture for double-sided spraying of conformal coating on inverter mainboard according to claim 4, characterized in that: The thickness of the clamp upper mold body (200) is the same as the thickness of the clamp lower mold body (100), and the length of the buckle position (110) is greater than the thickness of the clamp upper mold body (200).

6. A fixture for double-sided spraying of conformal coating on inverter mainboard according to claim 1, characterized in that: The lower mold body (100) of the clamp is evenly provided with a plurality of circular holes (102), and a magnet block (130) is fixedly connected inside the circular hole (102); the upper mold body (200) of the clamp is evenly provided with a plurality of circular holes (203), and a magnet block (240) is fixedly connected inside the rectangular plate (230).

7. A fixture for double-sided spraying of conformal coating on inverter mainboard according to claim 6, characterized in that: The inner diameter of the circular hole one (102) is the same as the inner diameter of the circular hole two (203), and the length of the magnet block one (130) is the same as the length of the magnet block two (240).

Images