An engineering plastic shell and its preparation method

Abstract

This invention relates to an engineering plastic housing, comprising an outer shell and a top cover. An air inlet is provided on one side of the outer shell, and an air outlet is provided on the top of the top cover. Inside the air inlet, air inlet channels a, b, and c are sequentially formed in a vertical direction. An air control component is provided on one side of the air inlet, and an adjustment component is provided inside the air outlet. The adjustment component adjusts the size of the air outlet while simultaneously driving the air control component to control the opening of air inlet channels a, b, and c. This invention solves the problems of poor heat dissipation in existing technologies, which can easily cause housing deformation after prolonged use, thus posing safety hazards to internal electrical products such as batteries. This invention also relates to a method for preparing engineering plastic housings.

Description

Technical Field

[0001] This invention relates to the field of engineering plastics technology, specifically to an engineering plastic shell and its preparation method. Background Technology

[0002] Engineering plastics have become the fastest-growing sector in the plastics industry, offering superior mechanical properties, durability, corrosion resistance, and heat resistance compared to ordinary plastics. The casings of electrical products such as batteries require high levels of acid resistance, heat resistance, and shock resistance; therefore, using engineering plastics to manufacture these casings meets relevant standards. Currently, the casings of batteries and other electrical products on the market are diverse, but most lack adequate ventilation and heat dissipation structures and devices. This results in poor heat dissipation performance, leading to significant deformation due to temperature changes over prolonged use, which can compromise the safety of the internal batteries and other electrical components. Furthermore, under certain operating conditions, batteries may be connected in parallel in two or more groups, necessitating casings with excellent heat dissipation properties to support the batteries, protect them from external damage, and provide effective cooling. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an engineering plastic housing, including an outer shell and a top cover. A battery is housed within the outer shell. An air inlet is located on one side of the outer shell, and an air outlet is located on the top of the top cover. Inside the air inlet, air inlet channels a, b, and c are vertically arranged sequentially. A wind control component is located on one side of the air inlet, and an adjustment component is located inside the air outlet. The adjustment component adjusts the size of the air outlet while simultaneously controlling the opening of air inlet channels a, b, and c. This invention solves the problem of poor heat dissipation in the housings of existing electrical products such as batteries.

[0004] The technical solution of the present invention is as follows:

[0005] One objective of this invention is to provide an engineering plastic housing, comprising an outer shell and a top cover. A battery is disposed within the outer shell. An air inlet is disposed on one side of the outer shell, and an air outlet is disposed on the top of the top cover. An air inlet channel a, an air inlet channel b, and an air inlet channel c are sequentially formed vertically inside the air inlet. An air control component is disposed on one side of the air inlet, and an adjustment component is disposed inside the air outlet. The adjustment component adjusts the size of the air outlet while simultaneously driving the air control component to control the opening of air inlet channels a, b, and c.

[0006] As a preferred embodiment, the air control assembly includes a groove formed inside the housing and an air control plate slidably disposed within the groove. The air control plate has a rotating hole a at its top and a rotating groove a at its bottom. A rotating rod a is rotatably disposed inside the rotating hole a. The rotating rod a has a thread on its outer side and a rotating block a at its bottom for engaging with the rotating groove a.

[0007] As a preferred embodiment, the air control assembly further includes a rotating hole b opened on the top cover and a rotating seat fixedly installed on the top of the top cover corresponding to the rotating hole b. The rotating seat has a rotating groove b inside, and a rotating component is rotatably installed inside the rotating seat. The rotating component has a thread inside, and a rotating block b for cooperating with the rotating groove b is provided on the top of the rotating component. A pulley a is fixedly installed in the middle of the rotating component.

[0008] As a preferred embodiment, the adjustment assembly includes a mounting groove a inside the top cover and a mounting groove b above the mounting groove a. A rotating rod b is rotatably disposed inside the mounting groove a. A pulley b is disposed at the bottom of the rotating rod b. A blade is fixedly disposed in the middle of the rotating rod b. A knob is fixedly disposed at the top of the rotating rod b. The pulley b is connected to the pulley a via a belt.

[0009] As a preferred embodiment, the fixing assembly includes outer shells c and d symmetrically arranged on both sides of the fresh air unit body, a fixing rod b fixedly arranged inside outer shells c and b, and a turntable b rotatably arranged on the fixing rod b. A strap is wound around the turntable b, and a spring is also sleeved on the fixing rod b. One end of the spring is connected to the strap.

[0010] As a preferred embodiment, the adjustment assembly further includes a rotation hole c on the top cover corresponding to the rotation rod b.

[0011] As a preferred embodiment, the air outlet is fan-shaped.

[0012] Preferably, the widths of the air inlet, air inlet channel a, air inlet channel b, and air inlet channel c are all equal to the width of the groove.

[0013] Another object of the present invention is to provide a method for preparing an engineering plastic shell, comprising the following steps:

[0014] 1. Weigh out 80-100 parts of polyphenylene sulfide resin, 5-15 parts of glass fiber, 10-20 parts of carbon fiber, 5-10 parts of mineral filler, 5-10 parts of carbon nanotubes, 6-8 parts of polytetrafluoroethylene, 5-10 parts of molybdenum disulfide, 2-5 parts of antioxidant, and 5-10 parts of stabilizer according to the following weight proportions.

[0015] 2. Put all the ingredients into a mixer and mix them evenly;

[0016] 3. Dry the mixed raw materials at a temperature of 130-150℃ for 3-4 hours.

[0017] Fourth, feed the dried raw material from step three into the injection molding machine for injection molding and cooling, and finally open the mold to remove the product.

[0018] As a preferred embodiment, in step four, during injection molding, the barrel temperature is 290~350℃ and the mold temperature is 120~160℃.

[0019] As another preferred option, in step four, during injection molding, the injection pressure is 100~140MPa, the holding pressure is 0.5MPa, the back pressure is 0.3~0.8MPa, and the mold filling time is 0.5~1.5s.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. This invention provides an engineering plastic housing, including an outer shell and a top cover. An air inlet is provided on one side of the outer shell, and an air outlet is provided on the top of the top cover. Inside the air inlet, air inlet channels a, b, and c are sequentially formed in a vertical direction. A wind control component is provided on one side of the air inlet, and an adjustment component is provided inside the air outlet. By adjusting the size of the air outlet through the adjustment component, the wind control component controls the opening of air inlet channels a, b, and c. This solves the problem of poor heat dissipation performance of the housing of electrical products such as batteries in the prior art, which causes the housing to deform due to temperature changes after long-term use, thus affecting the safety of the internal electrical products such as batteries.

[0022] 2. This invention includes an air control assembly. The air control plate within this assembly, in conjunction with air inlet channels a, b, and c, allows for adjustment of the airflow volume at the air inlet. This enables manual control of the airflow volume to dissipate heat from internal electrical components such as batteries. A rotating rod a, rotatably mounted on the top of the air control plate, meshes with a rotating component within a rotating base. When the rotating component rotates, it drives the rotating rod a to move up and down, causing the baffle plate to rise and fall along a sliding groove via the vertical movement of the rotating rod a. This movement of the baffle plate sequentially opens and closes ventilation ducts a, b, and c.

[0023] 3. This invention includes an adjustment component. The pulley b at the bottom of the rotating rod b in the adjustment component works in conjunction with the pulley a in the middle of the rotating rod a via a belt. This allows the rotating rod b to rotate synchronously with the rotating rod a, enabling the rotating rod a to simultaneously adjust the size of the air outlet by driving the blades, and simultaneously raise and lower the baffle plate. The belt provides a single power source for the synchronous operation of both the blades and the baffle plate, saving time. As the airflow at the inlet increases or decreases, the size of the air outlet also increases or decreases synchronously, resulting in better heat dissipation.

[0024] In summary, this invention has advantages such as good heat dissipation, convenient adjustment, ingenious structure, and ease of use, making it suitable for the field of engineering plastics technology. Attached Figure Description

[0025] The invention will be further described below with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the structure of the plastic shell of the project;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the plastic shell of the project;

[0028] Figure 3 This is an exploded structural diagram of the air control component;

[0029] Figure 4 This is an exploded cross-sectional view of the air control component.

[0030] Figure 5 A schematic diagram of the exploded structure of the adjustment component;

[0031] Figure 6 This is a cross-sectional view of the air inlet and outlet when they are not open.

[0032] Figure 7 This is a schematic diagram showing the state of the air inlet and outlet when they are open.

[0033] Figure 8 This is a schematic diagram showing the state when the air intake duct is fully open.

[0034] Figure 9 for Figure 8 Enlarged diagram of point A. Detailed Implementation

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] Example 1

[0037] like Figures 1 to 9As shown, an engineering plastic housing includes an outer shell 1 and a top cover 2. A battery is disposed inside the outer shell 1. An air inlet 3 is disposed on one side of the outer shell 1, and an air outlet 4 is disposed on the top of the top cover 2. The air inlet 3 is characterized in that an air inlet channel a31, an air inlet channel b32, and an air inlet channel c33 are sequentially formed vertically inside the air inlet 3. An air control component 5 is disposed on one side of the air inlet 3, and an adjustment component 6 is disposed inside the air outlet 3. The adjustment component 6 adjusts the size of the air outlet 4 and simultaneously drives the air control component 5 to control the opening of the air inlet channel a31, the air inlet channel b32, and the air inlet channel c33.

[0038] In this invention, a housing 1 and a top cover 2 are provided. An air inlet 3 is provided on one side of the housing 1, and an air outlet 4 is provided on the top of the top cover 2. Inside the air inlet 3, air inlet channels a31, b32, and c33 are sequentially opened vertically. A wind control component 5 is provided on one side of the air inlet 3, and an adjustment component 6 is provided inside the air outlet 4. By adjusting the size of the air outlet 4 through the adjustment component 6, the wind control component 5 controls the opening of air inlet channels a31, b32, and c33. This solves the problem of poor heat dissipation performance of the housing of electrical products such as batteries in the prior art, which causes the housing to deform due to temperature changes after long-term use, thus affecting the safety of the internal electrical products such as batteries. When two or more sets of batteries are used in parallel, the batteries are placed in parallel inside the housing. Through the cooperation of the housing and the air control component 5 and adjustment component 6, the effective heat dissipation of the batteries can be ensured while protecting them from external damage.

[0039] The air control assembly 5 includes a slide groove 51 formed inside the outer casing 1 and an air control plate 52 slidably disposed within the slide groove 51. The top of the air control plate 52 has a rotating hole a53, and the bottom of the rotating hole a53 has a rotating groove a54. A rotating rod a55 is rotatably disposed inside the rotating hole a53. The outer side of the rotating rod a55 is threaded, and the bottom of the rotating rod a55 is provided with a rotating block a56 for cooperating with the rotating groove a54. The slide groove 51 allows the air control plate 52 to rise and fall more smoothly. The rotating block a56 at the bottom of the rotating rod a55 cooperates with the rotating groove a54, so that the rotating rod a55 will not detach from the air control plate 52 during the rising and falling process and can carry the air control plate 52 to rise and fall synchronously.

[0040] The air control assembly 5 also includes a rotating hole b57 on the top cover 2 and a rotating seat 58 fixedly mounted on the top of the top cover 2 with a corresponding rotating hole b57. The rotating seat 58 has a rotating groove b59 inside, and a rotating component 510 is rotatably mounted inside the rotating seat 58. The rotating component 510 has a thread inside, and a rotating block b511 for engaging with the rotating groove b59 is provided on the top of the rotating component 510. A pulley a512 is fixedly mounted in the middle of the rotating component 510. The rotating rod a55 is engaged with the rotating component 510 through a thread. The rotation of the rotating component 510 drives the rotating rod a55 to rotate, thereby achieving the upward and downward movement. While the rotating rod a55 is rising and falling, it drives the air control plate 52 to rise and fall synchronously along the slide groove 51. The rotating block b511 on the top of the rotating component 510 engages with the rotating groove b59 inside the rotating seat 58, so that the rotating component 510 will not loosen or shift when rotating, resulting in a smoother rise and fall.

[0041] It is worth mentioning that the present invention is equipped with an air control component 5. The air control plate 52 in the air control component 5 cooperates with the air intake channels a31, b32 and c33 in the air intake to adjust the air intake size of the air intake 3. This allows the air intake size to be manually controlled according to needs to dissipate heat from electrical products such as batteries inside the casing. The rotating rod a55 rotatably mounted on the top of the air control plate 52 meshes with the rotating component 510 rotatably mounted in the rotating seat 58. When the rotating component 510 rotates, it drives the rotating rod a55 to move up and down, so that the baffle plate 52 can be raised and lowered along the slide groove 51 by the up and down movement of the rotating rod a55. The raising and lowering of the baffle plate 52 opens and closes the ventilation ducts a31, b32 and c33 in sequence.

[0042] The adjustment component 6 includes a mounting groove a61 inside the top cover 2 and a mounting groove b62 above the mounting groove a61. A rotating rod b63 is rotatably mounted inside the mounting groove a61. A pulley b64 is mounted at the bottom of the rotating rod b63. ​​A blade 65 is fixedly mounted in the middle of the rotating rod b63. ​​A knob 66 ​​is fixedly mounted at the top of the rotating rod b63. ​​The pulley b64 is connected to the pulley a57 via a belt 67. Rotating the knob 66 ​​causes the rotating rod b63 to rotate. The belt 67 causes the pulley b64 on the rotating rod b63 to drive the pulley a57 to rotate, thereby enabling the rotating component 510 to drive the rotating rod a55 to rotate, thus moving the air control plate 52. During the rotation of the rotating rod b63, the blade 65 also rotates, thereby changing the opening size of the air outlet 4. Through a clever linkage design, two actions can be completed with one power source, saving power and making adjustment faster.

[0043] The adjustment assembly 6 also includes a rotation hole c68 on the top cover 2 corresponding to the rotation rod b62.

[0044] More notably, the present invention includes an adjustment component 6. The pulley b64 at the bottom of the rotating rod b63 in the adjustment component 6 engages with the pulley a512 at the middle of the rotating rod a55 via a belt 67. This allows the rotating rod b63 to rotate synchronously with the rotating rod a55, enabling the rotating rod a55 to adjust the size of the air outlet 4 by driving the blades 65. Simultaneously, the rotating rod a55 can raise and lower the baffle plate 52. The belt 67 provides a single power source for the synchronous operation of both the blades 65 and the baffle plate 52, saving time and manpower. As the airflow at the air inlet 3 increases or decreases, the size of the air outlet 4 also increases or decreases synchronously. The ingenious structure results in better heat dissipation.

[0045] The air outlet 4 is fan-shaped. By setting the air outlet 4 to a fan shape, the amount of air output can be adjusted more quickly by rotating the blades 65 when the air outlet 4 is opened and closed.

[0046] The widths of air inlet 3, air inlet channel a31, air inlet channel b32, and air inlet channel c33 are all equal to the width of slide groove 51, so that the air entering through air inlet 3 can be more concentrated to cool the inside of the outer shell 1 through the air inlet channel, resulting in better heat dissipation.

[0047] Example 2

[0048] A method for preparing an engineering plastic shell includes the following steps:

[0049] 1. Weigh out 80-100 parts of polyphenylene sulfide resin, 5-15 parts of glass fiber, 10-20 parts of carbon fiber, 5-10 parts of mineral filler, 5-10 parts of carbon nanotubes, 6-8 parts of polytetrafluoroethylene, 5-10 parts of molybdenum disulfide, 2-5 parts of antioxidant, and 5-10 parts of stabilizer according to the following weight proportions.

[0050] 2. Put all the ingredients into a mixer and mix them evenly;

[0051] 3. Dry the mixed raw materials at a temperature of 130-150℃ for 3-4 hours.

[0052] Fourth, feed the dried raw material from step three into the injection molding machine for injection molding and cooling, and finally open the mold to remove the product.

[0053] In step four, during injection molding, the barrel temperature is 290~350℃ and the mold temperature is 120~160℃. To prevent the material from oxidizing and discoloring, the barrel temperature should not be too high.

[0054] In step four, during injection molding, the injection pressure is 100~140MPa, the holding pressure is 0.5MPa, the back pressure is 0.3~0.8MPa, and the mold filling time is 0.5~1.5s. High injection pressure is required when processing polyphenylene sulfide products to avoid negative impacts on molding. Applying a certain back pressure can make the quality of the product more stable.

[0055] Work process

[0056] When it is necessary to increase the air intake volume inside the outer casing 1, the knob 66 ​​is turned clockwise to rotate the rotating rod b63. ​​The rotation of the rotating rod b63 causes the blades 65 to rotate synchronously, thus increasing the size of the air outlet 4. The rotation of the rotating rod b63 causes the pulley b64 to drive the belt 67 to rotate. The belt 67 drives the pulley a57 to rotate. The rotation of the pulley a57 drives the rotating component 510 to rotate. The rotation of the rotating component 510 causes the rotating rod a55 to rise. As the rotating rod a55 rises, it also causes the air control plate 52 to rise synchronously along the slide groove. The rise of the air control plate 52 releases the obstruction of the air intake channels a31, b32, and c33 in sequence, thus increasing the amount of air entering through the air inlet 3. When it is necessary to reduce the air intake volume inside the outer casing 1, the knob 66 ​​is turned counterclockwise.

[0057] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0058] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0059] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An engineering plastic housing, comprising an outer shell (1) and a top cover (2), wherein a battery is disposed inside the outer shell (1), an air inlet (3) is disposed on one side of the outer shell (1), and an air outlet (4) is disposed on the top of the top cover (2), characterized in that, The air inlet (3) has an air inlet channel a (31), an air inlet channel b (32) and an air inlet channel c (33) arranged vertically inside. A wind control component (5) is provided on one side of the air inlet (3). An adjustment component (6) is provided inside the air outlet (4). The adjustment component (6) adjusts the size of the air outlet (4) while driving the wind control component (5) to control the opening of the air inlet channel a (31), the air inlet channel b (32) and the air inlet channel c (33). The air control assembly (5) includes a groove (51) opened in the outer shell (1) and an air control plate (52) slidably arranged in the groove (51). The top of the air control plate (52) is provided with a rotating hole a (53), the bottom of the rotating hole a (53) is provided with a rotating groove a (54), a rotating rod a (55) is rotatably arranged in the rotating hole a (53), the outside of the rotating rod a (55) is provided with a thread, and the bottom of the rotating rod a (55) is provided with a rotating block a (56) for cooperating with the rotating groove a (54). The air control assembly (5) also includes a rotating hole b (57) opened on the top cover (2) and a rotating seat (58) fixedly installed on the top of the top cover (2) with the corresponding rotating hole b (57). The rotating seat (58) has a rotating groove b (59) inside. A rotating component (510) is rotatably installed inside the rotating seat (58). The rotating component (510) has a thread inside. The rotating component (510) has a rotating block b (511) at the top for cooperating with the rotating groove b (59). A pulley a (512) is fixedly installed in the middle of the rotating component (510). The adjustment assembly (6) includes a mounting groove a (61) opened in the top cover (2) and a mounting groove b (62) opened above the mounting groove a (61). A rotating rod b (63) is rotatably arranged in the mounting groove a (61). A pulley b (64) is arranged at the bottom of the rotating rod b (63). A blade (65) is fixedly arranged in the middle of the rotating rod b (63). A knob (66) is fixedly arranged at the top of the rotating rod b (63). The pulley b (64) is connected to the pulley a (57) through a belt (67). The pulley b (64) at the bottom of the rotating rod b (63) and the pulley a (512) in the middle of the rotating rod a (55) are connected by a belt (67). When the rotating rod b (63) rotates, it drives the rotating rod a (55) to rotate synchronously. The rotating rod a (55) drives the blade (65) to adjust the size of the air outlet (4) and at the same time, the rotating rod a (55) drives the baffle (52) to rise and fall.

2. The engineering plastic shell according to claim 1, characterized in that, The adjustment assembly (6) also includes a rotation hole c (68) on the top cover (2) corresponding to the rotation rod b (62).

3. The engineering plastic shell according to claim 1, characterized in that, The air outlet (4) is fan-shaped.

4. The engineering plastic shell according to claim 1, characterized in that, The widths of the air inlet (3), air inlet channel a (31), air inlet channel b (32) and air inlet channel c (33) are all equal to the width of the groove (51).

5. A method for preparing an engineering plastic shell according to any one of claims 1 to 4, characterized in that, Includes the following steps:

1. Weigh out 80-100 parts of polyphenylene sulfide resin, 5-15 parts of glass fiber, 10-20 parts of carbon fiber, 5-10 parts of mineral filler, 5-10 parts of carbon nanotubes, 6-8 parts of polytetrafluoroethylene, 5-10 parts of molybdenum disulfide, 2-5 parts of antioxidant, and 5-10 parts of stabilizer according to the following weight proportions.

2. Place all the ingredients into a mixer and mix them thoroughly.

3. Dry the evenly mixed raw materials at a temperature of 130-150℃ for 3-4 hours. Fourth, feed the dried raw material from step three into the injection molding machine for injection molding and cooling, and finally open the mold to remove the product.

6. The method for preparing the engineering plastic shell according to claim 5, characterized in that, In step four, during injection molding, the barrel temperature is 290~350℃ and the mold temperature is 120~160℃.

7. The method for preparing the engineering plastic shell according to claim 5, characterized in that, In step four, during injection molding, the injection pressure is 100~140MPa, the holding pressure is 0.5MPa, the back pressure is 0.3~0.8MPa, and the mold filling time is 0.5~1.5s.

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