Simulation printing device of resistor disc for controlling automobile air blower

Abstract

The utility model discloses a simulation printing device of a resistor disc for controlling an automobile air blower in the technical field of printing equipment, and aims to solve the problems of low efficiency, low yield and the like of reprinting of the resistor disc in the prior art. The testing device comprises a machine table, a testing plate is installed on the surface of the machine table, the testing plate comprises a flat plate and a plurality of sets of conductive blocks distributed on the surface of the flat plate, the number of the conductive blocks in each set is not less than two, a moving module is arranged on the machine table, and the moving module is used for driving a mounting frame to move. A silk-screen printing module is mounted on the mounting frame; according to the utility model, simulation resistance testing is carried out on the silver-palladium paste with different lengths and widths on the test board, and the silver-palladium paste with proper width and thickness is screened out through testing and printed on a product, so that the printing of a corresponding circuit can be completed at one time according to the model; the production efficiency can be conveniently improved, and meanwhile the product yield can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a simulation printing device for a resistor sheet used for controlling an automobile blower, belonging to the technical field of printing equipment. Background Art

[0002] Stainless steel resistors for automotive blower control are a crucial component in automotive control systems. These components typically incorporate complex printed circuits. The relatively fixed specifications and circuit layouts of these resistors, combined with varying resistance requirements for different circuits, can lead to significant discrepancies between the printed resistance and the actual resistance required during batch printing. To mitigate this discrepancy, a thinner silver-palladium paste layer must be printed once. After circuit testing, circuits that do not meet the resistance requirements are reprinted. This approach not only increases the number of print runs but also necessitates re-preparing the screen for printing, leading to material waste and significantly impacting production efficiency. Furthermore, this printing method prevents precise adjustments for larger errors, resulting in significant resistance discrepancies between the actual product and the customer's requirements, impacting product yield. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a simulation printing device for a resistor sheet for controlling an automobile blower, which is used to perform a simulation resistance test on silver-palladium pastes of different lengths and widths on a test board, and screen out silver-palladium pastes of suitable width and thickness through the test for printing on the product, so that the printing of the corresponding circuit can be completed at one time according to the template, which can conveniently improve production efficiency and effectively improve the yield of the product.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] The utility model provides a simulation printing device for a resistor sheet for controlling an automobile blower, comprising a machine platform, a test board being installed on the surface of the machine platform, the test board comprising a flat plate and several groups of conductive blocks distributed on the surface of the flat plate, the number of the conductive blocks in each group being no less than two, a movable module being provided on the machine platform, the movable module being used to drive a mounting frame to move, a screen printing module being installed on the mounting frame, the screen printing module being used to print several groups of silver-palladium pastes of different widths on the test board, and ensuring that each printed silver-palladium paste can be electrically connected to at least two conductive blocks of the corresponding group.

[0006] Specifically, an infrared heating module is installed on one side of the mounting frame adjacent to the screen printing module, and the infrared heating module is used to heat and cure the printed silver palladium paste.

[0007] Specifically, a test package is also included, each of the conductive blocks is provided with a conductive connector, and the test package includes at least several groups of batteries, wiring wires connecting the positive and negative poles of the batteries, and a resistance test circuit provided on the corresponding group of wiring wire circuits, and the wiring wires are used to electrically connect to the conductive connectors on the conductive blocks.

[0008] Specifically, the number of flat plates of the test board is no less than two, and multiple flat plates are stacked together in the vertical direction. The positions of the conductive blocks on the multiple flat plates are the same, and the conductive blocks at two adjacent upper and lower positions are in contact with each other. The conductive joint is a socket opened on the conductive block, and the connecting part of the wiring wire is inserted into the socket of the corresponding conductive block for electrical connection with the solidified silver palladium paste.

[0009] Specifically, the machine platform is also provided with a sliding rod, and multiple flat plates are provided with sliding holes, each of the sliding holes is slidably fitted and inserted on the sliding rod, and the machine platform is also provided with a cylinder, and a push plate is provided at the output end of the cylinder, and the push plate is used to push the multiple flat plates to perform lifting and lowering actions along the extension direction of the sliding rod.

[0010] Specifically, the connection end of the wiring conductor is provided with an elastic layer, and the elastic layer can tightly press the wiring conductor against the corresponding conductive block. The connection end of the wiring conductor is provided with an elastic layer, and the elastic layer can tightly press the wiring conductor against the corresponding conductive block.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The utility model provides a simulation printing device, which can simulate the printing of silver-palladium paste circuits of different widths, thicknesses and lengths on a test board, and screen out the circuits with the most suitable thickness and width for typeset through circuit testing, so as to prepare the corresponding silk screen printing screen. The prepared silk screen printing screen can complete the printing work required by the customer in one go without the need for reprinting, which can effectively improve the production speed and product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the simulation printing device provided by an embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of the test board structure provided by an embodiment of the present utility model;

[0015] Figure 3 It is a cross-sectional schematic diagram of a simulation printing device provided by an embodiment of the present utility model;

[0016] Figure numerals: 1. Machine; 2. Test board; 201. Flat plate; 202. Conductive block; 203. Jack; 204. Slide hole; 3. Moving module; 4. Mounting frame; 5. Screen printing module; 6. Infrared heating module; 7. Test package; 8. Wiring wire; 9. Cylinder; 10. Push plate; 11. Slide rod. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances. Example

[0020] The embodiment of the present invention provides a simulation printing device for a resistor sheet for controlling an automobile blower, which is used to perform a simulation resistance test on silver palladium pastes of different lengths and widths on a test board, and screen out silver palladium pastes of suitable width and thickness through the test for printing on the product, so that the printing of the corresponding circuit can be completed at one time according to the template, which is convenient for improving production efficiency and effectively improving the yield of the product. In order to facilitate the simulation test of the corresponding silver palladium paste printed circuit and the printing of the silver palladium paste, the device is provided here, including a machine 1. Specifically, a test board 2 is installed on the surface of the machine 1. The test board 2 includes a flat plate 201 and several groups of conductive blocks 202 distributed on the surface of the flat plate 201. Preferably, reference can be made to Figure 2 As shown, the number of each group of conductive blocks 202 is not less than two, and a moving module 3 is provided on the machine 1. The moving module 3 is used to drive the mounting frame 4 to move, and a screen printing module 5 is installed on the mounting frame 4. The screen printing module 5 is used to print several groups of silver palladium pastes of different widths on the test board 2 (the width can be achieved by printing with the same printing screen, and different screens need to be replaced if silver palladium pastes of different thicknesses are to be printed), and each printed silver palladium paste can be electrically connected to at least two conductive blocks 202 of the corresponding group. After the silver palladium paste is cured to form a circuit, the resistance value of the silver palladium paste circuit of the corresponding length, width and thickness can be measured by electrically connecting the corresponding conductive block 202, and the corresponding printing specifications can be selected according to the resistance value. In the actual design scheme, you can first design lines with different widths (0.4mm / 0.5mm / 0.6mm to 3.2mm) and lengths of 100mm, and then use stainless steel wire mesh SUS250M22.5°+20u and nylon mesh SX200M22.5°+40u yarn to make screens with different mesh sizes and film thicknesses. Use high-temperature sintered silver palladium paste with fixed square resistance for sample trial production, test the line resistance and collect data to confirm the correlation between the resistance, line length, line width and film thickness between lines with different line widths and the same line length / different film thicknesses; finally, use the obtained data and the performance requirements of the customer's products to design the product circuit. In actual test applications, a single piece of slurry can save about 0.05 grams, and the accuracy of product design can be increased from 60% to about 90%. After further fine-tuning, it can basically be directly applied to production operations. For example Figure 2 As shown, when it is necessary to test the relationship between the length and resistance of the silver-palladium paste circuit, the circuit can be directly printed to cover no less than three conductive blocks 202. During the test, different conductive blocks 202 can be connected to test the resistance change of silver-palladium paste circuits of different lengths (similar to the principle of a sliding rheostat), that is, the spacing and total length of the conductive blocks 202 can be changed according to one's own design requirements (because the test length is actually the spacing between the conductive blocks 202, and printing only needs to complete covering the conductive blocks 202). No further details will be given here.

[0021] The embodiment of the present invention provides a simulation printing device for a resistor sheet for controlling an automobile blower. In order to facilitate the rapid curing of the printed silver-palladium paste, in a preferred embodiment, an infrared heating module 6 can be installed on the side of the mounting frame 4 adjacent to the screen printing module 5. The infrared heating module 6 is used to heat and cure the printed silver-palladium paste. After printing is completed, the infrared heating module 6 is moved to the position of the test board 2, and the silver-palladium paste is quickly cured using infrared energy, so that no other devices are required for transfer and coordination, which is conducive to centralized testing and lightweighting of the equipment. In order to be able to complete the detection work synchronously on the machine 1, the device is provided here and also includes a test package 7. Specifically, a conductive connector is provided on each conductive block 202. The test package 7 includes at least several groups of batteries, wiring wires 8 connecting the positive and negative poles of the batteries, and a resistance test circuit provided on the circuit of the corresponding group of wiring wires 8. The wiring wires 8 are used to electrically connect to the conductive connectors on the conductive block 202. The resistance test circuit is a conventional test circuit and will not be described in detail here.

[0022] The embodiment of the present invention provides a simulation printing device for a resistor sheet for controlling an automobile blower. In order to facilitate the study of the square resistance of the silver palladium paste circuit according to the thickness, when printing silver palladium paste products of different thicknesses, a cured flat plate 201 cannot be reused, and it is cumbersome to prepare an additional corresponding test board 2. Therefore, it is preferred that the number of flat plates 201 of the test board 2 is not less than two, and multiple flat plates 201 are stacked together in the vertical direction. When it is necessary to additionally print silver palladium paste circuits of different thicknesses, the flat plate 201 that has been printed on the upper side can be removed. At this time, in order to facilitate the connection of the circuit For testing, the conductive blocks 202 on multiple flat plates 201 are arranged at the same position. Specifically, the conductive blocks 202 at two adjacent upper and lower positions are in contact with each other. At this time, the conductive connector is a socket 203 provided on the conductive block 202. The connecting portion of the wiring wire 8 is inserted into the socket 203 of the corresponding conductive block 202 for electrical connection with the solidified silver-palladium paste (the conductive block 202 at the bottom position can be connected to multiple conductive blocks 202 at the same time, but when only the conductive block 202 at the bottom is connected, poor contact with the conductive block 202 at the top may cause increased resistance. Therefore, a reasonable test circuit can be selected according to production conditions).

[0023] An embodiment of the present invention provides a simulation printing device for a resistor sheet for controlling an automobile blower. Taking into account that the relative height positions of the test board 2, the screen printing module 5, and the infrared heating module 6 will be different during operation, if the screen printing module 5 and the infrared heating module 6 are directly set to be able to rise and fall, it may be necessary to drive them separately for rising and falling. For this purpose, an additional lifting module needs to be configured. In order to simplify the setting of the mechanism, a slide bar 11 can be directly provided on the machine 1, and a plurality of flat plates 201 are provided with a slide hole 204. Each slide hole 204 is slidably fitted and inserted on the slide bar 11. A cylinder 9 is also provided on the machine 1, and a push plate 10 is provided at the output end of the cylinder 9. The push plate 10 is used to push the plurality of flat plates 201 to perform a lifting action along the extension direction of the slide bar 11, thereby directly driving the test board 2 to move so that the relative position height of the test board 2 can change when it is working.

[0024] An embodiment of the present invention provides a simulated printing device for a resistor sheet for controlling an automobile blower. In order to prevent the connection of the wiring wire 8 from becoming loose, an elastic layer can be provided at the connection end of the wiring wire 8. The elastic layer can tightly press the wiring wire 8 against the corresponding conductive block 202 after being inserted into the corresponding socket 203, thereby achieving a reliable electrical connection.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A simulated printing device for a resistor sheet used for controlling an automobile blower, characterized in that: The invention comprises a machine (1), wherein a test board (2) is installed on the surface of the machine (1), wherein the test board (2) comprises a flat plate (201) and a plurality of groups of conductive blocks (202) distributed on the surface of the flat plate (201), wherein the number of the conductive blocks (202) in each group is not less than two, and wherein a moving module (3) is provided on the machine (1), wherein the moving module (3) is used for driving a mounting frame (4) to move, wherein a screen printing module (5) is installed on the mounting frame (4), wherein the screen printing module (5) is used for printing a plurality of groups of silver palladium pastes of different widths on the test board (2), and wherein each printed silver palladium paste can be electrically connected to at least two conductive blocks (202) of the corresponding group.

2. The analog printing device for a resistor sheet for controlling an automobile blower according to claim 1, characterized in that: An infrared heating module (6) is also installed on the side of the mounting frame (4) adjacent to the screen printing module (5), and the infrared heating module (6) is used to heat and solidify the printed silver palladium paste.

3. The analog printing device for a resistor sheet for controlling an automobile blower according to claim 1, characterized in that: The device further comprises a test pack (7), each of the conductive blocks (202) being provided with a conductive connector, the test pack (7) comprising at least a plurality of battery groups, wiring conductors (8) connecting the positive and negative electrodes of the batteries, and a resistance test circuit provided on the circuit of the corresponding wiring conductors (8), the wiring conductors (8) being used to electrically connect to the conductive connectors on the conductive blocks (202).

4. The analog printing device for a resistor sheet for controlling an automobile blower according to claim 3, characterized in that: The number of the flat plates (201) of the test board (2) is not less than two, and the plurality of flat plates (201) are stacked together in a vertical direction. The conductive blocks (202) on the plurality of flat plates (201) are at the same position, and the conductive blocks (202) at two adjacent upper and lower positions are in contact with each other. The conductive joint is a socket (203) provided on the conductive block (202), and the connecting portion of the wiring wire (8) is inserted into the socket (203) of the corresponding conductive block (202) for electrical connection with the solidified silver palladium paste.

5. The analog printing device for a resistor sheet for controlling an automobile blower according to claim 4, characterized in that: The machine (1) is further provided with a slide bar (11), and a plurality of the flat plates (201) are provided with slide holes (204), and each of the slide holes (204) is slidably fitted and inserted into the slide bar (11). The machine (1) is further provided with a cylinder (9), and a push plate (10) is provided at the output end of the cylinder (9), and the push plate (10) is used to push the plurality of flat plates (201) to perform a lifting action along the extension direction of the slide bar (11).

6. The analog printing device for a resistor sheet for controlling an automobile blower according to claim 4, characterized in that: The connection end of the wiring conductor (8) is provided with an elastic layer, and the elastic layer can tightly press the wiring conductor (8) against the corresponding conductive block (202).

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