Environment-friendly JH11 air conditioner control panel

Abstract

The utility model relates to the field of automobile air conditioner control panel preparation, in particular to an environment-friendly JH11 air conditioner control panel. An environment-friendly JH11 air conditioner control panel comprises a control panel front shell and a control panel rear shell, and the control panel rear shell is formed by recycled PC resin in an injection molding mode. The control panel front shell and the control panel rear shell are detachably connected to form the environment-friendly JH11 air conditioner control panel. Three air conditioner control knobs are arranged on the control panel front shell; a PCL interface groove is formed in the outer surface of the control panel rear shell in an integrated injection molding mode. A heat dissipation groove is formed in the outer surface of the control panel rear shell in a penetrating mode. The environment-friendly JH11 air conditioner control panel shell is formed by injection molding of the recycled PC resin, good environment-friendly performance is given to the shell on the premise that the mechanical performance and the processing stability of the JH11 air conditioner control panel shell are met, and the overall production cost of the environment-friendly JH11 air conditioner control panel can be reduced.

Description

Technical Field

[0001] The present application relates to the field of automobile air-conditioning control panel preparation, and in particular to an environmentally friendly JH11 air-conditioning control panel. Background Art

[0002] The automotive air conditioning control panel is a crucial component within the vehicle, used to control various functions of the air conditioning system, including temperature adjustment, air speed control, and mode selection. Currently, conventional automotive air conditioning control panels are constructed to some extent from PC composite materials, typically composed of inorganic fillers, masterbatches, PC resin, lubricants, and antioxidants. Masterbatches are selected based on the overall color scheme of the vehicle's interior. Typical masterbatches are black-based masterbatches with a high carbon black content of 30-55wt%, such as PLASBLAK® EG3807 and PA3785. Inorganic fillers, such as titanium dioxide, barium sulfate, calcium carbonate, and talc, are used to improve the mechanical strength and dimensional stability of PC composites.

[0003] During the actual production of JH11 air conditioning control panels, due to issues such as dimensional accuracy and product appearance defects, the yield rate cannot reach 100%, which inevitably results in scrap automotive air conditioning control panels. This scrap is recycled through the existing extrusion, crushing, and melting process to obtain recycled PC composite resin. However, secondary thermal oxidation degradation of the recycled PC composite resin results in a high degree of thermal oxidation fracture of the PC resin molecular weight, reducing its overall mechanical properties and wear resistance, making it unable to meet the production standards for automotive air conditioning control panels. As a result, this scrap is typically sold at a low price to plastic recyclers for recycling. In summary, existing automotive air conditioning control panels suffer from low environmental performance and low utilization of renewable resources. Utility Model Content

[0004] In order to solve the technical difficulties existing in the prior art, the present application provides an environmentally friendly JH11 air conditioning control panel.

[0005] The environmentally friendly JH11 air conditioner control panel provided in this application is realized through the following technical solutions:

[0006] An environmentally friendly JH11 air conditioning control panel comprises a front housing and a rear housing, the rear housing being injection-molded from recycled PC resin; the front housing and the rear housing being detachably connected to form the environmentally friendly JH11 air conditioning control panel; the front housing being provided with three air conditioning control knobs; a PCL interface slot being integrally injection-molded on the outer surface of the rear housing; a heat dissipation slot being provided through the outer surface of the rear housing; and a plurality of connectors being integrally injection-molded on the outer surface of the rear housing.

[0007] Preferably, the control panel front shell is injection-molded from recycled PC resin; and the control panel front shell is formed with a baking varnish surface layer.

[0008] Preferably, the recycled PC resin has a heat deformation temperature of 130-135°C at 1.8 MPa, a notched impact strength of 40-45 kJ / m2, a tensile strength of 68-78 MPa, an elongation at break of 38-40%, a mold shrinkage rate of ≤0.5%, and a wear resistance of ≤200 mg.

[0009] Preferably, the regenerated PC resin is JH11-RPC / CM-A or the regenerated PC resin is JH11-RPC / CM-B or the regenerated PC resin is JH11-RPC / CM-C.

[0010] This application is made of recycled PC resin injection molding, which meets the mechanical properties and processing stability of the JH11 air-conditioning control panel shell, giving it good green and environmental protection performance, and can reduce the overall production cost of the environmentally friendly JH11 air-conditioning control panel. The recycled PC resin in this application is the recycled PC resin developed by the applicant. At the same time, the patent submitted - a waste crushing and recycling system for air-conditioning control panels and the recycled PC resin prepared using it have been disclosed. The existing recycled PC resin with high environmental performance and meeting the performance requirements of the air-conditioning control panel shell is used to prepare the front shell and / or the rear shell of the control panel, ensuring the mechanical properties and wear resistance of the prepared JH11 air-conditioning control panel shell while improving the overall environmental protection performance and resource utilization rate, in line with sustainable development production requirements and green product standards.

[0011] Preferably, the inner surface of the rear shell of the control panel is integrally injection-molded with grid reinforcement ribs.

[0012] By adopting the above technical solution, the mechanical properties and dimensional stability of the rear shell of the control panel are improved.

[0013] Preferably, the outer surface of the rear shell of the control panel is integrally injection-molded with a plurality of snap-in parts; the snap-in parts include snap-in connectors and connecting snaps, and the snap-in connectors are integrally injection-molded on the outer surface of the rear shell of the control panel; the snaps are snapped into the snap-in connectors.

[0014] Preferably, the rear shell of the control panel is integrally injection-molded with a plurality of fixing buckles; the fixing buckles are integrally injection-molded with connecting teeth; the front shell of the control panel is integrally injection-molded with a plurality of matching slots; when the rear shell of the control panel is connected to the front shell of the control panel, the connecting teeth of the fixing buckles are located in the matching slots.

[0015] Preferably, the engaging tooth is a cube with a right-angled trapezoidal cross-section, and the bottom of the engaging tooth is integrally injection-molded on the upper surface of the fixed buckle; the right-angled side wall of the engaging tooth faces away from the matching slot of the front shell of the control panel; the oblique side wall of the engaging tooth faces the matching slot of the front shell of the control panel; when the rear shell of the control panel is engaged with the front shell of the control panel, the engaging tooth of the fixed buckle is located in the matching slot, and the upper surface of the engaging tooth is penetrated by the matching slot and exposed outside the matching slot; when the environmentally friendly JH11 air-conditioning control panel needs to be disassembled, the engaging tooth is pressed out of the matching slot, and the rear shell of the control panel is pulled backward, so that the environmentally friendly JH11 air-conditioning control panel can be disassembled into the front shell of the control panel and the rear shell of the control panel.

[0016] By adopting the above technical solution, the front shell of the control panel and the rear shell of the control panel can be detachably connected to form an environmentally friendly JH11 air-conditioning control panel.

[0017] Preferably, the inner circumference of the fixing buckle is integrally injection-molded with reinforcing ribs.

[0018] By adopting the above technical solution, the clamping stability performance of the front shell of the control panel and the rear shell of the control panel is improved.

[0019] In summary, this application has the following advantages:

[0020] 1. This application is made of recycled PC resin injection molding, which meets the mechanical properties and processing stability of the JH11 air conditioning control panel shell, giving it good green environmental protection performance and meeting the requirements of sustainable development production.

[0021] 2. This application is made of recycled PC resin injection molding, making full use of the waste resources of JH11 air-conditioning control panel, which can reduce the overall production cost of the environmentally friendly JH11 air-conditioning control panel and enhance the core competitiveness of the enterprise.

[0022] 3. The recycled PC resin used in this application is the recycled PC resin developed by the applicant. The patent submitted at the same time as this application - an air-conditioning control panel waste crushing and recycling system and the recycled PC resin prepared using the same has disclosed a method for preparing the recycled PC resin. The existing recycled PC resin with high environmental performance and meeting the performance requirements of the air-conditioning control panel shell is used to prepare the control panel front shell and / or the control panel rear shell, ensuring the mechanical properties and wear resistance of the prepared JH11 air-conditioning control panel shell while improving the overall environmental performance and resource utilization rate, meeting the sustainable development production requirements and green product standards, and enhancing the core competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a structural schematic diagram of the JH11 air conditioning control panel in an embodiment of the present application, showing the front shell structure of the control panel.

[0024] Figure 2 It is a structural schematic diagram of the front shell of the control panel in an embodiment of the present application.

[0025] Figure 3 It is a structural schematic diagram of the JH11 air conditioning control panel in an embodiment of the present application, showing the rear shell structure of the control panel.

[0026] Figure 4 It is a structural schematic diagram of the rear shell of the control panel in an embodiment of the present application, showing the structure of the PCL interface slot.

[0027] Figure 5 It is a schematic structural diagram of the rear shell of the control panel in an embodiment of the present application, showing the structure of the fixing buckle.

[0028] Figure 6 It is a schematic diagram of the connection structure between the snap connector and the connecting snap in an embodiment of the present application.

[0029] In the figure, 1. front shell of control panel; 101. control panel; 102. front shell; 103. reinforcing ribs; 11. air conditioning control knob; 12. snap-on connector; 2. rear shell of control panel; 20. grid reinforcement ribs; 200. reinforcing ribs; 21. PCL interface slot; 22. heat dissipation slot; 23. plug-in connector; 24. snap connector; 241. snap connector; 242. connecting buckle; 25. fixing buckle; 251. snap-on teeth; 26. matching slot. DETAILED DESCRIPTION

[0030] The present application is further described in detail below with reference to the accompanying drawings and examples. Example

[0031] Reference Figure 1 An environmentally friendly JH11 air conditioner control panel includes a front housing 1 and a rear housing 2, which are detachably connected to form the control panel. The rear housing 2 is injection-molded from recycled PC resin. Preferably, the front housing 1 is also injection-molded from recycled PC resin. When the front housing 1 is also injection-molded from recycled PC resin, a baked-on lacquer finish is applied to the surface, improving its overall aesthetics and wear resistance.

[0032] The recycled PC resin is a recycled PC resin developed by the applicant. The patent submitted at the same time as this application - an air-conditioning control panel waste crushing and recycling system and the recycled PC resin prepared using the same has disclosed a method for preparing the recycled PC resin. The existing recycled PC resin with high environmental performance and meeting the performance requirements of the air-conditioning control panel shell is used to prepare the control panel front shell and / or the control panel rear shell, ensuring the mechanical properties and wear resistance of the prepared JH11 air-conditioning control panel shell while improving the overall environmental performance and resource utilization, meeting the sustainable development production requirements and green product standards.

[0033] The recycled PC resin has a heat deformation temperature of 130-135°C at 1.8MPa, a notched impact strength of 40-45kJ / m2, a tensile strength of 68-78MPa, an elongation at break of 38-40%, a mold shrinkage rate of ≤0.5%, and a wear resistance of ≤200mg.

[0034] The recycled PC resin can be selected from the recycled PC of JH11-RPC / CM-A grade in Example 1 of the patent - an air-conditioning control panel waste crushing and recycling system and the recycled PC resin prepared using the same.

[0035] The heat distortion temperature (ASTM D-648) of recycled PC of JH11-RPC / CM-A grade at 1.8MPa is 132.9℃, and the notched impact strength (ASTM D-256) is 43.2kJ / m 2 The tensile strength (ASTM D-638) is 74.8 MPa, the elongation at break (ASTM D-638) is 38.7%, the mold shrinkage (calculated by the formula: α = (D - M) / D, where D represents the mold size and M represents the size of the product after molding) is 0.43%, and the wear resistance (GB / T 3960-2016 Plastics Sliding Friction and Wear Test Method) is 187 mg.

[0036] The recycled PC resin can be selected from the recycled PC of JH11-RPC / CM-B brand in Example 2 of the patent - an air-conditioning control panel waste crushing and recycling system and the recycled PC resin prepared using the same.

[0037] The heat distortion temperature (ASTM D-648) of recycled PC of JH11-RPC / CM-B grade at 1.8MPa is 132.5℃, and the notched impact strength (ASTM D-256) is 43.5kJ / m 2The tensile strength (ASTM D-638) is 75.1 MPa, the elongation at break (ASTM D-638) is 39.2%, the mold shrinkage (calculated by the formula: α = (D - M) / D, where D represents the mold size and M represents the size of the product after molding) is 0.41%, and the wear resistance (GB / T 3960-2016 Plastics Sliding Friction and Wear Test Method) is 185 mg.

[0038] The recycled PC resin can be selected from the recycled PC of JH11-RPC / CM-C grade in Example 3 of the patent - an air-conditioning control panel waste crushing and recycling system and the recycled PC resin prepared using the same.

[0039] The heat distortion temperature (ASTM D-648) of recycled PC of JH11-RPC / CM-C at 1.8MPa is 134.1℃, and the notched impact strength (ASTM D-256) is 44.7kJ / m 2 The tensile strength (ASTM D-648) is 76.3 MPa, the elongation at break (ASTM D-648) is 39.1%, the mold shrinkage (calculated by the formula: α = (D - M) / D, where D represents the mold size and M represents the size of the product after molding) is 0.39%, and the wear resistance (GB / T 3960-2016 Plastics Sliding Friction and Wear Test Method) is 178 mg.

[0040] Control group 1 is the JH11 air conditioning control panel shell masterbatch, and its preparation method is as follows: 250g of compatibilizer-SEBS-g-MAH (Coais W1G-4), 200g of carbon black (Mitsubishi carbon black MA100), 400g of barium sulfate (YF-1250 ultrafine barium sulfate of Yufeng brand), 200g of titanium dioxide (rutile titanium dioxide core R-215), 50g of antioxidant 1076, 50g of siloxane coupling agent KH570, 3850g of SABIC PC OQ1020L (melt index of 70±1g / 10min) was placed in a high-speed dispersing kettle and mixed and dispersed at 400rpm for 1h to obtain a mixed resin. The obtained resin was placed in a twin-screw extruder with a screw speed of 440rpm / min and a screw aspect ratio of 32. The extrusion temperature was divided into seven heating zones, with the first heating zone set at 215°C, the second heating zone set at 225°C, the first heating zone set at 230°C, the third heating zone set at 235°C, the fourth heating zone set at 240°C, the fifth heating zone set at 240°C, the sixth heating zone set at 240°C, and the seventh heating zone set at 240°C. The die head temperature was 240.1°C. The obtained molten extrudate was drawn, cooled with silicone oil, and granulated to obtain JH11 air-conditioning control panel shell masterbatch with a particle size of 2-3mm.

[0041] The JH11 air conditioning control panel housing masterbatch has a heat deformation temperature (ASTM D-648) of 130.2°C at 1.8 MPa and a notched impact strength (ASTM D-256) of 42.5 kJ / m 2 The tensile strength (ASTM D-648) is 69.8 MPa, the elongation at break (ASTM D-648) is 40.2%, the mold shrinkage (calculated by the formula: α = (D - M) / D, where D represents the mold size and M represents the size of the product after molding) is 0.45%, and the wear resistance (GB / T 3960-2016 Plastics Sliding Friction and Wear Test Method) is 195 mg.

[0042] Control group 2 is a patent - A system for crushing and recycling waste from air conditioner control panels and recycled PC resin prepared using the same. The recycled PC resin disclosed in control group 2 has a heat distortion temperature (ASTM D-648) of 126.7°C at 1.8 MPa and a notched impact strength (ASTM D-256) of 35.4 kJ / m 2 The tensile strength (ASTM D-648) is 61.4 MPa, the elongation at break (ASTM D-648) is 30.4%, the mold shrinkage (calculated by the formula: α = (D - M) / D, where D represents the mold size and M represents the size of the product after molding) is 0.59%, and the wear resistance (GB / T 3960-2016 Plastics Sliding Friction and Wear Test Method) is 219 mg.

[0043] In summary, the above three brands of recycled PC resin can replace JH11 air-conditioning control panel shell masterbatch to prepare JH11 air-conditioning control panel shell, which can meet the mechanical properties and processing stability of JH11 air-conditioning control panel shell while giving it good green environmental protection performance, in line with the requirements of sustainable development production.

[0044] Reference Figure 1 and Figure 2 The control panel front housing 1 includes a control panel 101 and a front housing 102. The front housing 102 is detachably connected to the control panel rear housing 2. Three air conditioning control knobs 11 are mounted on the control panel 101. The control panel 101 and the front housing 102 are integrally injection molded to form the control panel front housing 1. The area of the control panel 101 is larger than that of the front housing 102. Several reinforcing ribs 103 are integrally injection molded between the control panel 101 and the front housing 102 to improve the overall mechanical strength and dimensional stability of the control panel front housing 1.

[0045] Reference Figure 1 and Figure 2The control panel 101 is integrally injection-molded with a plurality of snap-on connectors 12. There are four snap-on connectors 12, two of which are located on the left and right sides of the control panel 101, respectively; and two more snap-on connectors 12 are located at the bottom of the control panel 101, and the two snap-on connectors 12 are spaced apart from each other.

[0046] Reference Figure 3 and Figure 5 The inner surface of the control panel rear housing 2 is integrally molded with mesh reinforcement ribs 20. A PCL interface slot 21 is integrally molded on the outer surface of the control panel rear housing 2 to facilitate connection of the PCL interface connector to the PCL board installed in the air conditioner control panel. Heat dissipation slots 22 are defined throughout the outer surface of the control panel rear housing 2 to dissipate heat generated by the PCL board. Several cross-conical connectors 23 are integrally molded on the outer surface of the control panel rear housing 2.

[0047] Reference Figure 3 and Figure 4 A plurality of clips 24 are integrally injection-molded on the outer surface of the rear housing 2 of the control panel.

[0048] Reference Figure 3 and Figure 6 The clip 24 includes a clip connector 241 and a connecting clip 242. The clip connector 241 is integrally injection-molded on the outer surface of the control panel rear housing 2, while the connecting clip 242 is detachably mounted and is clipped to the clip connector 241.

[0049] Reference Figure 3 and Figure 4 Several fixing clips 25 are integrally molded around the control panel rear housing 2, and reinforcing ribs 200 are integrally molded around the inner circumference of the fixing clips 25. Engaging teeth 251 are integrally molded around the fixing clips 25. Several mating slots 26 are integrally molded around the control panel front housing 1. When the control panel rear housing 2 is attached to the control panel front housing 1, the engaging teeth 251 of the fixing clips 25 are located within the mating slots 26.

[0050] Reference Figure 3 and Figure 4The engaging tooth 251 is a cube with a right-angled trapezoidal cross section, and the bottom of the engaging tooth 251 is integrally injection-molded on the upper surface of the fixed buckle 25. The right-angled side wall of the engaging tooth 251 faces away from the matching slot 26 of the control panel front shell 1. The oblique side wall of the engaging tooth 251 faces the matching slot 26 of the control panel front shell 1. When the control panel rear shell 2 is engaged with the control panel front shell 1, the engaging tooth 251 of the fixed buckle 25 is located in the matching slot 26, and the matching slot 26 is penetrated on the upper surface of the engaging tooth 251 and exposed outside the matching slot 26. When the environmentally friendly JH11 air-conditioning control panel needs to be disassembled, the engaging tooth 251 is pressed out of the matching slot 26, and the control panel rear shell 2 is pulled backwards, and the environmentally friendly JH11 air-conditioning control panel can be disassembled into the control panel front shell 1 and the control panel rear shell 2.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An environmentally friendly JH11 air conditioning control panel, characterized by: The control panel comprises a front shell (1) and a rear shell (2), wherein the rear shell (2) is injection-molded from recycled PC resin; the front shell (1) and the rear shell (2) are detachably connected to form an environmentally friendly JH11 air-conditioning control panel; three air-conditioning control knobs (11) are provided on the front shell (1); a PCL interface slot (21) is integrally injection-molded on the outer surface of the rear shell (2); a heat dissipation slot (22) is provided through the outer surface of the rear shell (2); and a plurality of connectors (23) are integrally injection-molded on the outer surface of the rear shell (2).

2. The environmentally friendly JH11 air conditioning control panel according to claim 1, characterized in that: The inner surface of the control panel rear housing (2) is integrally injection-molded with grid reinforcement ribs (20).

3. The environmentally friendly JH11 air conditioning control panel according to claim 1, characterized in that: The control panel front housing (1) is injection-molded from recycled PC resin; the control panel front housing (1) is formed with a baking varnish surface layer.

4. The environmentally friendly JH11 air conditioning control panel according to claim 1 or 3, characterized in that: The recycled PC resin has a heat deformation temperature of 130-135°C at 1.8 MPa and a notched impact strength of 40-45 kJ / m 2 , tensile strength is 68-78MPa, elongation at break is 38-40%, mold shrinkage is ≤0.5%, and wear resistance is ≤200mg.

5. The environmentally friendly JH11 air conditioning control panel according to claim 4, characterized in that: The regenerated PC resin is JH11-RPC / CM-A or the regenerated PC resin is JH11-RPC / CM-B or the regenerated PC resin is JH11-RPC / CM-C.

6. The environmentally friendly JH11 air conditioning control panel according to claim 1, characterized in that: The outer surface of the control panel rear shell (2) is integrally injection-molded with a plurality of snap-fitting parts (24); the snap-fitting parts (24) comprise snap-fitting connecting parts (241) and connecting snap-fitting parts (242); the snap-fitting connecting parts (241) are integrally injection-molded on the outer surface of the control panel rear shell (2); and the connecting snap-fitting parts (242) are snap-fitted to the snap-fitting connecting parts (241).

7. The environmentally friendly JH11 air conditioning control panel according to claim 1, characterized in that: The control panel rear shell (2) is integrally injection-molded with a plurality of fixing buckles (25); the fixing buckles (25) are integrally injection-molded with engaging teeth (251); the control panel front shell (1) is integrally injection-molded with a plurality of matching slots (26); when the control panel rear shell (2) is connected to the control panel front shell (1), the engaging teeth (251) of the fixing buckles (25) are located in the matching slots (26).

8. The environmentally friendly JH11 air conditioner control panel according to claim 7, characterized in that: The engaging teeth (251) are a cube with a right-angled trapezoidal cross section, and the bottom of the engaging teeth (251) is integrally injection-molded on the upper surface of the fixing buckle (25); the right-angled side wall of the engaging teeth (251) faces away from the matching slot (26) of the control panel front shell (1); the oblique side wall of the engaging teeth (251) faces toward the matching slot (26) of the control panel front shell (1); when the control panel rear shell (2) is engaged with the control panel front shell (1), the fixing buckle The engaging teeth (251) of (25) are located in the matching slot (26), and the upper surface of the engaging teeth (251) is provided with the matching slot (26) and is exposed outside the matching slot (26); when it is necessary to disassemble the environmentally friendly JH11 air-conditioning control panel, the engaging teeth (251) are pressed out of the matching slot (26), and the rear shell (2) of the control panel is pulled out backwards, so that the environmentally friendly JH11 air-conditioning control panel can be disassembled into the front shell (1) of the control panel and the rear shell (2) of the control panel.

9. The environmentally friendly JH11 air conditioner control panel according to claim 7, characterized in that: The inner circumference of the fixing buckle (25) is integrally injection-molded with a reinforcing rib (200).

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