High protection type programmable controller

Abstract

The utility model discloses a high protection type programmable controller, and relates to the technical field of connector waterproofing. The utility model relates to a high-protection type programmable controller, which comprises an upper cover, the lower cover is connected with the upper cover, and a mounting space is formed in the upper cover and the lower cover; the light guide column is detachably mounted on the upper cover; the PCBA board is detachably installed in the upper cover, and the PCBA board is connected with the light guide column; the connector end group is connected with the PCBA board, and one end of the connector end group penetrates out of the upper cover; the perspective sealing assembly is detachably mounted on the upper cover; and the first sealing piece is positioned between the lower cover and the upper cover. According to the utility model, the problems of difficult controller maintenance, low production efficiency, easy low-temperature waterproof failure, difficult quality control, poor heat dissipation and health influence are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector waterproof, specifically relates to a high protection type programmable controller. BACKGROUND

[0002] In the field of industrial automation and electronic equipment, the cabinet high protection controller as a key component is widely used in various harsh environmental conditions to ensure the stable operation of the system. Such controllers need to have a high protection level to resist the erosion of dust, moisture, vibration and extreme temperature and other adverse factors. At present, most of the cabinet high protection controllers on the market use the glue filling scheme to realize their high protection characteristics. However, although the glue filling scheme meets the basic protection requirements to some extent, its inherent defects are increasingly prominent, which are specifically shown in the following aspects:

[0003] 1. High maintenance cost and inconvenience: the glue filling packaging method makes it difficult to repair or replace the electronic components inside the controller once they are damaged, and the controller usually needs to be replaced as a whole, which not only increases the maintenance cost, but also prolongs the maintenance cycle and affects the quick recovery of the equipment.

[0004] 2. Production efficiency and site restrictions: the complete curing process after glue filling lasts for 24 hours, which significantly reduces the assembly efficiency of the production line, especially in mass production assembly, this defect is particularly prominent. In addition, the curing process needs to occupy a large space, which increases the production cost and management difficulty.

[0005] 3. Water failure in low temperature environment: in the long-term-40℃ low temperature environment, the adhesion between the glue and the shell may weaken, causing the shell and the glue to separate, and then causing water failure, which seriously affects the reliability and service life of the controller.

[0006] 4. Quality control in production process: since the PCBA (printed circuit board assembly) is completely filled with glue, once any quality problem is found in the production process, such as component misassembly, poor welding, etc., it can only be treated as scrap, which increases the production cost and waste.

[0007] 5. Limited heat dissipation performance: the limited heat conductivity coefficient of the glue in the glue filling scheme limits the overall heat dissipation performance of the controller, especially in high power density applications, the heat dissipation problem is particularly prominent, which affects the further improvement of the controller performance.

[0008] 6. Health risk: during the glue assembly process, the glue may volatilize gas with irritating odor for a long time, which poses a potential threat to the health of assembly workers and increases the occupational health and safety risk.

[0009] In view of the above problems, the industry is in urgent need of a new, more efficient and environmentally friendly off-cabinet high-protection controller to solve the many deficiencies of the existing controller glue filling, improve production efficiency, reduce maintenance costs, and at the same time protect the health and safety of production workers. Therefore, the present application aims to provide a high-protection programmable controller, aiming to overcome the limitations of the prior art, improve the overall performance and market competitiveness of the controller. Practical new type

[0010] The technical problem to be solved by the present application is the problem of difficult maintenance of the existing controller, and the purpose is to provide a high-protection programmable controller to solve the problems of difficult maintenance of the controller, low production efficiency, easy low-temperature waterproof failure, difficult quality control, poor heat dissipation and health problems.

[0011] The present application is achieved by the following technical solutions:

[0012] A high-protection programmable controller comprises

[0013] An upper cover;

[0014] A lower cover connected to the upper cover, the upper cover and the lower cover form an installation space inside;

[0015] A light guide column is detachably installed on the upper cover;

[0016] A PCBA board is detachably installed in the upper cover, and the PCBA board is located below the light guide column;

[0017] A connector end group is connected to the PCBA board, and one end penetrates out of the upper cover;

[0018] A perspective sealing assembly is detachably installed on the upper cover;

[0019] A first sealing element is located between the lower cover and the upper cover.

[0020] As a possible design, the number of the above light guide columns is multiple, and the light guide columns are inserted into the upper cover.

[0021] As a possible design, the above light guide column comprises a first light guide column and a second light guide column group,

[0022] The number of the first light guide column is multiple, and the first light guide column is inserted into the upper cover and located above the PCBA board;

[0023] The number of the second light guide column group is multiple, and the second light guide column group is inserted into the upper cover and located above the PCBA board.

[0024] As a possible design, the above second light guide column group comprises a second light guide column and a connecting piece,

[0025] Each group of second light guide columns has two, and the second light guide column is located above the PCBA board;

[0026] The number of connecting pieces is the same as the number of groups of the second light guide columns, and each connecting piece is connected between a group of the second light guide columns.

[0027] As a possible design, the light guide column further comprises a second sealing member,

[0028] The number of the second sealing members is multiple, and the multiple second sealing members are respectively sleeved on the first light guide column and the second light guide column.

[0029] As a possible design, the connector end group comprises a first connector terminal, a second connector terminal, a power input connector and a power output connector,

[0030] The number of the first connector terminals is multiple, the first connector terminals are mounted on the PCBA board, and one end penetrates out of the upper cover;

[0031] The number of the second connector terminals is two, the second connector terminals are mounted on the PCBA board, and one end penetrates out of the upper cover;

[0032] The power input connector and the power output connector are mounted on the PCBA board and used for connecting an external power supply.

[0033] As a possible design, the second connector terminal is provided with a shielding ring, and a third sealing member is arranged in a layer between the second connector terminal and the shielding ring.

[0034] As a possible design, the connector end group further comprises a fourth sealing member,

[0035] The number of the fourth sealing members is multiple, and the multiple fourth sealing members are respectively sleeved on the first connector terminal, the second connector terminal, the power input connector and the power output connector, and each fourth sealing member abuts against the upper cover.

[0036] As a possible design, a fifth sealing member is further sleeved on the first connector terminal, and the fifth sealing member is located at one end of the fourth sealing member away from the PCBA board.

[0037] As a possible design, the perspective sealing assembly comprises a perspective lens and a sixth sealing member,

[0038] The perspective lens is detachably connected with the upper cover.

[0039] The sixth sealing member is sleeved on one end of the perspective lens connected with the upper cover.

[0040] Compared with the prior art, the utility model has the advantages and beneficial effects that

[0041] The utility model discloses a waterproof purpose can be realized to the PCBA board through the connection of PCBA board and light guide column, connector end group, and the PCBA board is pressed into the upper cover, and the first sealing piece is embedded into the lower cover, finally, the upper cover and lower cover are closely connected, can realize waterproof purpose, finally reach the grade of overall waterproof IP67. BRIEF DESCRIPTION OF DRAWINGS

[0042] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings:

[0043] Figure 1 It is the explosion structure schematic diagram of a kind of high protection programmable controller of the utility model;

[0044] Figure 2 It is one of the sectional view of a kind of high protection programmable controller of the utility model;

[0045] Figure 3 It is the local enlarged view of A portion of a kind of high protection programmable controller of the utility model;

[0046] Figure 4 It is the schematic diagram of the partial structure of a kind of high protection programmable controller of the utility model;

[0047] Figure 5 It is the second sectional view of a kind of high protection programmable controller of the utility model;

[0048] Figure 6 It is the structure schematic diagram of the light guide column of a kind of high protection programmable controller of the utility model;

[0049] Figure 7 It is the structure schematic diagram of the perspective sealing assembly of a kind of high protection programmable controller of the utility model.

[0050] Mark and corresponding component name in drawing:

[0051] 1-Top cover; 11-First clip; 2-Lower cover; 3-Light guide post; 31-First light guide post; 32-Second light guide post assembly; 321-Second light guide post; 322-Connector; 33-Second seal; 4-PCBA board; 5-Transparent sealing assembly; 51-Transparent lens; 52-Sixth seal; 6-First seal; 7-Connector end assembly; 71-First connector terminal; 72-Second connector terminal; 721-Shielding ring; 73-Power input connector; 74-Power output connector; 75-Third seal; 76-Fourth seal; 77-Fifth seal; 78-Second clip. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0053] Example

[0054] This embodiment provides a highly protected programmable controller, such as... Figures 1-2 As shown, the assembly includes an upper cover 1, a lower cover 2, a light guide post 3, a PCBA board 4, a connector end assembly 7, a transparent sealing assembly 5, and a first sealing element 6. The upper cover 1 is a hollow semi-shell shape that fits snugly against the lower cover 2. The connection method can be snap-fit, screw connection, or any other arbitrary connection method. The lower cover 2 is connected to the upper cover 1, and the interiors of the upper cover 1 and lower cover 2 form an installation space for accommodating the light guide post 3, the PCBA board 4, and the connector end assembly 7. The light guide post 3 is detachably mounted on the upper cover 1. Preferably, the upper cover 1 has a through hole for the light guide post 3 to pass through. The PCBA board 4 is detachably mounted inside the upper cover 1. Both the PCBA board 4 and the connector end assembly 7 can be detachably connected, and the connection method can be welding, screw connection, or other connection methods. The connector end assembly 7 connects to the PCBA board 4, with one end extending out of the upper cover 1. This allows users to connect external devices, such as sensors, switches, actuators, and other control components, to the PLC system. The transparent sealing assembly 5 is detachably installed on the upper cover 1. It is made of transparent material and its main functions are debugging, downloading files, and resetting. The connection between it and the upper cover 1 can be either a snap-fit ​​or a screw connection. The first seal 6 is located between the lower cover 2 and the upper cover 1. Its shape is the same as the shape of the connection between the lower cover 2 and the upper cover 1, which facilitates a tight connection between the upper cover 1 and the lower cover 2 through compression to achieve a water-proof effect.

[0055] In some embodiments, referencing the guide Figure 1 and Figure 6 There are multiple light guide columns 3, which are inserted on the upper cover 1. Preferably, the multiple light guide columns 3 are arranged symmetrically and at equal intervals.

[0056] In some embodiments, referring to Figure 1 and Figure 6 , the light guide column 3 comprises a first light guide column 31 and a second light guide column group 32. The first light guide column 31 is in a plurality, and the plurality of first light guide columns 31 are arranged at equal intervals on the upper cover 1 and are detachably connected with the PCBA board 4 by extruding the upper cover 1; the second light guide column group 32 is in a plurality of groups, and the plurality of second light guide column groups 32 are symmetrically and equally arranged on the upper cover 1 and are detachably connected with the PCBA board 4 by extruding the upper cover 1.

[0057] In some embodiments, referring to the guide Figure 1 and Figure 6 , the second light guide column group 32 comprises a second light guide column 321 and a connecting piece 322. Each group of second light guide columns 321 is two, and the second light guide column 321 is detachably connected with the PCBA board 4 by extruding the upper cover 1; the connecting piece 322 is in the same number as the number of groups of second light guide columns 321, and each connecting piece 322 is connected between two second light guide columns 321 to stabilize the relative position of the two.

[0058] In some embodiments, referring to the guide Figure 1 , Figure 3 and Figure 6 , the light guide column 3 further comprises a second sealing piece 33, and the second sealing piece 33 is in a plurality, and the plurality of second sealing pieces 33 are respectively sleeved on the first light guide column 31 and the second light guide column 321. Since the first light guide column 321 and the second light guide column 322 will pass out of the through hole of the upper cover 1, sleeving the second sealing piece 33 on the first light guide column 321 and the second light guide column 322 can improve the waterproof effect.

[0059] Preferably, referring to Figure 3 , the second sealing piece 33 is located between the upper cover 1 and the first light guide column 321 / second light guide column 322, and is clamped therebetween to prevent water from seeping in from the gap. More preferably, it is made of elastic material, which can be latex, rubber, silicone or other elastic material.

[0060] Preferably, referring to Figure 6 , the first light guide column 31 and the second light guide column 321 are both in the shape of two cylinders connected together, and the axis of the two cylinders coincides and the diameter of the lower cylinder is greater than that of the upper cylinder. The second sealing piece 33 is sleeved on the upper cylinder, so that the lower cylinder can further prevent moisture from seeping in.

[0061] In some embodiments, referring to the guide Figures 1-5The connector end group 7 includes a first connector terminal 71, a second connector terminal 72, a power input connector 73, and a power output connector 74. The first connector terminal 71 is in a plurality, and functions as a signal transmission. The plurality of first connector terminals 71 are arranged at equal intervals and symmetrically. The first connector terminal 71 is mounted on the PCBA board 4, preferably welded on the PCBA board 4. The upper cover 1 is provided with a hole through which the first connector terminal 71 passes out, and one end of the first connector terminal 71 passes out of the upper cover 1. The second connector terminal 72 is in two, and functions as a signal transmission. The second connector terminal 72 is mounted on the PCBA board 4, and one end of the second connector terminal 72 passes out of the upper cover 1. The power input connector 73 and the power output connector 74 are mounted on the PCBA board 4, and are used to connect an external power supply.

[0062] In some embodiments, the guide Figure 1 and Figures 4-5 The second connector terminal 72 is provided with a shielding ring 721 outside the circle. The shielding ring 721 is a circular metal ring, and is used to shield external signal interference. A third sealing member 75 is arranged between the second connector terminal 72 and the shielding ring 721. The third sealing member 75 is of an elastic material, which can be latex, rubber, silicone or other elastic materials. The third sealing member 75 is sleeved on the second connector terminal 72 and is in contact with the shielding ring 721, so as to prevent moisture from penetrating.

[0063] In some embodiments, the guide Figures 1-6 The connector end group 7 further includes a fourth sealing member 76. The fourth sealing member 76 is of an elastic material, which can be latex, rubber, silicone or other elastic materials. The fourth sealing member 76 is in a plurality, and the plurality of fourth sealing members 76 are respectively sleeved on the first connector terminal 71, the second connector terminal 72, the power input connector 73, and the power output connector 74. Each fourth sealing member 76 is in abutment with the upper cover 1, so as to improve the waterproof effect.

[0064] Preferably, the guide Figure 3 The upper cover 1 is provided with a first clamping member 11 for clamping the first connector terminal 71, the second connector terminal 72, the power input connector 73, and the power output connector 74. The first connector terminal 71, the second connector terminal 72, the power input connector 73, and the power output connector 74 are respectively provided with a second clamping member 78 for clamping the first clamping member 11. The two clamping members are in interference connection. After the two clamping members are forcedly pressed and installed in the upper cover 1, the two clamping members cannot be separated from each other, which can ensure the stability of the installation and improve the waterproof effect. The fourth sealing member 76 is located between the first clamping member 11 and the second clamping member 78, so as to improve the sealing effect of the connection.

[0065] In some embodiments, the guide Figures 1-5The first connector terminal 71 is further sleeved with a fifth sealing piece 77, which is located at one end of the fourth sealing piece 76 away from the PCBA board 4. The fifth sealing piece 77 is located above the first clamping piece 11 and abuts against the first clamping piece 11, so that water can be further prevented from penetrating, and the waterproof effect is improved.

[0066] In some embodiments, the reference guide Figures 1-7 The perspective sealing assembly 5 comprises a perspective lens 51 and a sixth sealing piece 52. The perspective lens 51 is detachably connected with the upper cover 1, preferably by screwing; the sixth sealing piece 52 is sleeved at one end of the perspective lens 51 connected with the upper cover 1, is made of elastic material, and abuts against the upper cover 1, so that water can be prevented from penetrating.

[0067] The above specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-guard programmable controller characterized by, The utility model relates to a kind of LED display screen, including Upper cover (1); Lower cover (2) is connected with upper cover (1), and the inside of the upper cover (1) and lower cover (2) forms mounting space; Light guide column (3) is detachably installed on upper cover (1); PCBA board (4) is detachably installed in upper cover (1), and the PCBA board (4) is below light guide column (3); Connector end group (7) is connected with PCBA board (4), and one end penetrates out of upper cover (1); Perspective sealing assembly (5) is detachably installed in upper cover (1); First sealing element (6) is between the lower cover (2) and upper cover (1).

2. The high-guard programmable controller of claim 1, wherein, The number of the light guide column (3) is multiple, and is inserted in the upper cover (1).

3. A high protection type programmable controller according to claim 1 or 2, wherein The light guide column (3) includes first light guide column (31) and second light guide column group (32), The number of the first light guide column (31) is multiple, and is inserted in the upper cover (1), and is above PCBA board (4); The number of the second light guide column group (32) is multiple, and is inserted in the upper cover (1), and is above PCBA board (4).

4. The high-guard programmable controller of claim 3, wherein, The second light guide column group (32) includes second light guide column (321) and connecting piece (322), Each second light guide column (321) in the second light guide column group (32) is two, and the second light guide column (321) is above PCBA board (4); The number of the connecting piece (322) is same with the number of the second light guide column (321), and each connecting piece (322) is connected between a group of second light guide column (321).

5. A high-guard programmable controller according to claim 4, wherein The light guide column (3) further includes second sealing element (33), The number of the second sealing element (33) is multiple, and multiple second sealing element (33) is respectively sleeved on first light guide column (31) and second light guide column (321).

6. The high-guard programmable controller of claim 1, wherein, The connector end group (7) includes first connector terminal (71), second connector terminal (72), power input connector (73) and power output connector (74), The number of the first connector terminal (71) is multiple, and the first connector terminal (71) is installed on PCBA board (4), and one end penetrates out of upper cover (1); The number of the second connector terminal (72) is two, and is installed on PCBA board (4), and one end penetrates out of upper cover (1); The power input connector (73) and power output connector (74) are installed on PCBA board (4), and are used for connecting external power supply.

7. A high-guard programmable controller according to claim 6, wherein The outer ring of the second connector terminal (72) is provided with shielding ring (721), and the interlayer between the second connector terminal (72) and shielding ring (721) is provided with third sealing element (75).

8. The high-guard programmable controller of claim 6, wherein, The connector end group (7) further includes fourth sealing element (76), The number of the fourth sealing element (76) is multiple, and multiple fourth sealing element (76) is respectively sleeved on first connector terminal (71), second connector terminal (72), power input connector (73) and power output connector (74), and each fourth sealing element (76) abuts with upper cover (1).

9. A high-guard programmable controller according to claim 8, wherein, The first connector terminal (71) is further sleeved with a fifth sealing member (77), and the fifth sealing member (77) is located at one end of the fourth sealing member (76) away from the PCBA board (4).

10. The high-guard programmable controller of claim 1, wherein, The perspective sealing assembly (5) comprises a perspective lens (51) and a sixth sealing member (52), The perspective lens (51) is detachably connected with the upper cover (1). The sixth sealing member (52) is sleeved at one end of the perspective lens (51) connected with the upper cover (1).

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