Automobile instrument with good heat dissipation effect

By introducing a combination design of housing slots, heat dissipation vents, heat conduction plates, heat sinks and fan assemblies into the automotive instrument panel, the problem of unstable operation caused by heat accumulation in digital instruments has been solved, achieving better heat dissipation and safety.

CN224408965UActive Publication Date: 2026-06-26CHANGZHOU TIANNUO MOLDING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU TIANNUO MOLDING CO LTD
Filing Date
2025-09-15
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing digital car dashboards suffer from heat buildup due to increased functionality, leading to unstable operation and potential safety hazards.

Method used

The instrument employs a combination design of a receiving slot, heat dissipation port, heat conduction plate, heat sink, heat dissipation surface, connecting components, intake fan assembly, and exhaust fan assembly to create rapid airflow. Heat is absorbed and dissipated through the heat conduction plate and heat sink, ensuring rapid heat dissipation inside the instrument.

Benefits of technology

It achieves rapid cooling and heat dissipation inside the instrument, avoiding lag and black screen phenomena caused by excessive heat, and improving operational stability and driving safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224408965U_ABST
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Abstract

The utility model relates to the technical field of automobile instrument, concretely relates to an automobile instrument with good heat dissipation effect, the front shell and the rear shell of instrument, the rear end surface of instrument rear shell is provided with the accommodation groove, the inside of accommodation groove is provided with the heat dissipation mouth, the inside of accommodation groove is fixed with the heat conduction plate, the rear end surface of heat conduction plate evenly arranges a plurality of cooling fins, the both sides of accommodation groove are symmetrically provided with the heat dissipation surface, the both sides of heat dissipation surface are symmetrically provided with the connecting assembly, the rear of two heat dissipation surfaces is provided with air inlet fan subassembly and air outlet fan subassembly respectively, the front end surface of air inlet fan subassembly, air outlet fan subassembly is provided with the limit strip symmetrically, the front end surface of limit strip is provided with the first connecting arm, the front end surface of first connecting arm is provided with the first clamping block that forms the engagement with connecting assembly, the outer diameter of first clamping block is greater than first connecting arm, and the clamping groove is formed between first connecting arm and first clamping block, the utility model is better in heat dissipation effect, and the work is more stable, and the phenomenon of jam, black screen does not occur because of the heat that is too high, improves the driving safety.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive instrument technology, specifically an automotive instrument with good heat dissipation. Background Technology

[0002] Automotive instrument panels are mainly used to display vehicle operating parameters such as speed, mileage, fuel consumption, and water temperature. With the rapid development of digital integrated circuits, existing digital instrument panels can directly display data on LCD screens or LEDs and support more functional expansions, such as navigation information, blind spot audio and video, and a series of dynamic graphical interfaces, as well as intelligent interactive functions. As its functions increase, it will also cause digital instrument panels to generate a lot of heat. If this heat cannot be effectively dissipated, it can easily cause problems with the operation of the digital instrument panel, posing certain safety hazards. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automotive instrument with good heat dissipation to address the above-mentioned deficiencies and solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a car instrument with good heat dissipation effect, an instrument front shell and an instrument rear shell set at the rear end of the instrument front shell, the rear end of the instrument rear shell is provided with a receiving groove, the receiving groove is provided with a heat dissipation port communicating with the interior of the instrument rear shell, a heat conducting plate is fixedly set inside the receiving groove, a plurality of heat dissipation fins are evenly arranged along the length direction of the rear end of the heat conducting plate, the plurality of heat dissipation fins are parallel to each other and spaced apart from each other, heat dissipation surfaces communicating with the interior of the instrument rear shell are symmetrically opened on both sides of the receiving groove, connecting components are symmetrically arranged on both sides of the heat dissipation surfaces, an intake fan assembly and an exhaust fan assembly are respectively arranged behind the two heat dissipation surfaces, the front ends of the intake fan assembly and the exhaust fan assembly are symmetrically provided with limit strips, the front end of the limit strip is provided with a first connecting arm, the front end of the first connecting arm is provided with a first locking block that engages with the connecting component, the outer diameter of the first locking block is larger than the first connecting arm, and a locking groove is formed between the first connecting arm and the first locking block.

[0005] Furthermore, the connecting assembly includes a base plate disposed on the rear end face of the instrument housing, limiting plates symmetrically disposed on both sides of the rear end face of the base plate, second connecting arms symmetrically disposed on the base plate between the two limiting plates, and second locking blocks disposed at opposite ends of the two second connecting arms, with the two second connecting arms arranged vertically at intervals.

[0006] Furthermore, when the intake fan assembly, exhaust fan assembly, and connecting assembly are fixedly connected, the inner sidewall of the limiting plate abuts against the sidewall of the first locking block, the second locking block is located inside the locking slot, the rear end face of the first locking block abuts against the front end face of the second locking block, the rear end face of the second locking block abuts against the front end face of the limiting strip, and both ends of the first locking block abut against the second connecting arm.

[0007] Furthermore, the front end face of the first card block is provided with a first driving slope at both the upper and lower ends, and the rear end face of the second card block is provided with a second driving slope that matches the first driving slope.

[0008] Furthermore, the intake fan assembly and exhaust fan assembly include a mounting housing, a mounting hole located at the center of the mounting housing, a motor located at the center of the mounting hole, fan blades located at the drive end of the motor, a mounting rod fixedly connected to the mounting hole in a ring on the motor, and a limiting strip located on the mounting housing on both sides of the mounting hole.

[0009] Furthermore, the instrument's front and rear housings are equipped with mounting brackets, the front end of which is equipped with a display screen, and the rear end of which is equipped with a circuit board assembly electrically connected to the display screen.

[0010] The beneficial effects of this utility model are:

[0011] This utility model utilizes a combination of a receiving groove, a heat dissipation port, a heat-conducting plate, a heat sink, a heat dissipation surface, a connecting component, an intake fan component, an exhaust fan component, a limiting strip, a first connecting arm, a first locking block, and a locking groove. The intake fan component and the exhaust fan component are fixedly connected to the connecting component via the limiting strip, the first connecting arm, the first locking block, and the locking groove. Through the two heat dissipation surfaces, external air is introduced into the instrument panel rear housing from one side, and the high-temperature air inside is exhausted from the other side, creating a rapid airflow. This allows the circuit components inside the instrument panel to cool down quickly. Furthermore, the heat-conducting plate and heat sink quickly absorb the heat inside the instrument panel rear housing through the heat dissipation port and dissipate it into the external air. Their combined effect improves the heat dissipation of the instrument panel, making its operation more stable and preventing lag or blackouts due to excessive heat, thus improving driving safety. Attached Figure Description

[0012] The foregoing and other objects, features and advantages of this invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0013] Figure 1 This is a rear view of the present invention.

[0014] Figure 2 This is a front view of the present utility model.

[0015] Figure 3This is a top sectional view of the present invention, omitting the inlet / outlet fan assembly and the connecting assembly.

[0016] Figure 4 This is a side sectional view of the connecting component of this utility model.

[0017] Figure 5 This is a rear view structural diagram of the connecting component of this utility model.

[0018] The components are as follows: 1. Instrument front housing; 2. Instrument rear housing; 201. Receiving groove; 202. Heat dissipation port; 3. Heat conduction plate; 4. Heat sink; 5. Heat dissipation surface; 601. Intake fan assembly; 602. Exhaust fan assembly; 7. Limiting strip; 8. First connecting arm; 9. First locking block; 901. First driving inclined surface; 1001. Base plate; 1002. Limiting plate; 1003. Second connecting arm; 1004. Second locking block; 10041. Second driving inclined surface; 1101. Mounting housing; 1102. Mounting hole; 1103. Motor; 1104. Fan blade; 1105. Mounting rod; 12. Mounting bracket; 13. Display screen; 14. Circuit board assembly. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Reference Figure 1-5As shown, a car instrument panel with good heat dissipation includes a front housing 1 and a rear housing 2 located at the rear end of the front housing 1. The rear end of the rear housing 2 has a receiving groove 201 with a heat dissipation port 202 communicating with the interior of the rear housing 2. A heat-conducting plate 3 is fixedly installed inside the receiving groove 201. Multiple heat dissipation fins 4 are evenly arranged along the length of the rear end of the heat-conducting plate 3, parallel to each other and spaced apart. The heat dissipation fins 4 and the heat-conducting plate 3 can be made of thermally conductive materials such as copper or aluminum. The heat dissipated from inside the instrument panel is absorbed by the heat-conducting plate 3 through the heat dissipation port 202 and transferred to the multiple heat dissipation fins 4. Heat exchange occurs through the outer surface of the heat dissipation fins 4 contacting the outside environment, thus reducing the temperature of the instrument panel. Symmetrical openings on both sides of the receiving groove 201 communicate with the interior of the rear housing 2. The heat dissipation surface 5 has multiple rectangular holes spaced vertically to allow the electrical components inside the instrument panel to exchange heat with the outside environment. Connecting components are symmetrically arranged on both sides of the heat dissipation surface 5. An intake fan assembly 601 and an exhaust fan assembly 602 are respectively arranged behind the two heat dissipation surfaces 5. The intake fan assembly 601 and the exhaust fan assembly 602 send outside air into the instrument panel rear housing from one side of the heat dissipation surface and exhaust the high-temperature air inside from the other side of the heat dissipation surface, forming a rapid airflow. This allows the circuit components inside the instrument panel to cool down quickly. The heat conduction plate and heat sink quickly absorb the heat inside the instrument panel rear housing through the heat dissipation vents and dissipate it into the outside air. Their cooperation makes the heat dissipation effect of the instrument panel better, the operation more stable, and prevents the phenomenon of stagnation or black screen due to excessive heat, thus improving driving safety.

[0021] The intake fan assembly 601 and the exhaust fan assembly 602 are symmetrically provided with limit strips 7 at their front ends. A first connecting arm 8 is provided on the front end of the limit strip 7. A first locking block 9 is provided on the front end of the first connecting arm 8 to engage with the connecting assembly. The outer diameter of the first locking block 9 is larger than that of the first connecting arm 8. A groove is formed between the first connecting arm 8 and the first locking block 9. The connecting assembly includes a base plate 1001 disposed on the rear end face of the instrument rear housing 2, limit plates 1002 symmetrically disposed on both sides of the rear end face of the base plate 1001, and a second connecting arm symmetrically disposed on the base plate 1001 between the two limit plates 1002. 1003, and a second locking block 1004 disposed at one end of the two second connecting arms 1003, the two second connecting arms 1003 are arranged vertically at intervals. When the intake fan assembly 601, the exhaust fan assembly 602 and the connecting assembly are fixedly connected, the inner side wall of the limiting plate 1002 abuts against the side wall of the first locking block 9, the second locking block 1004 is located inside the slot, the rear end face of the first locking block 9 abuts against the front end face of the second locking block 1004, the rear end face of the second locking block 1004 abuts against the front end face of the limiting strip 7, both ends of the first locking block 9 abut against the second connecting arm 1003, and the front end of the first locking block 9... The upper and lower ends of the first drive ramp 901 are provided, and the rear end face of the second locking block 1004 is provided with a second drive ramp 10041 that matches the first drive ramp 901. When the intake fan assembly 601, the exhaust fan assembly 602 and the connecting assembly are fixed, the first drive ramp 901 on the first locking block 9 abuts against the second drive ramp 10041 of the second locking block 1004, thereby pushing the second locking block 1004 and causing the two second connecting arms 1003 and the second locking block 1004 to undergo elastic deformation, forming a flare between the two second connecting arms 1003 until the first locking block... After block 9 comes into contact with the base plate 1001, the pressure on the second locking block 1004 disappears, the second connecting arm 1003 resets, and the second locking block 1004 enters the slot, causing the first locking block 9 to come into contact with the second locking block 1004. Then the second locking block 1004 limits the first locking block 9, preventing the first locking block 9 from moving outside the connecting assembly. This causes the intake fan assembly and exhaust fan assembly to be locked and fixed on the instrument rear cover. When disassembly is required, simply move the second locking block 1004 and the second connecting arm 1003 away from the first locking block 9 to remove the intake fan assembly and exhaust fan assembly.

[0022] The intake fan assembly 601 and the exhaust fan assembly 602 include a mounting housing 1101, a mounting hole 1102 located at the center of the mounting housing 1101, a motor 1103 located at the center of the mounting hole 1102, and fan blades 1104 located at the drive end of the motor 1103. A mounting rod 1105 is annularly arranged on the motor 1103 and fixedly connected to the mounting hole 1102. Limiting strips 7 are arranged on the mounting housing 1101 on both sides of the mounting hole 1102. The motor 1103 drives the fan blades 1104 to rotate, so that the internal and external air flows. The motor 1103 is electrically connected to the internal wiring of the car dashboard.

[0023] The front housing 1 and the rear housing 2 of the instrument are provided with mounting brackets 12. The front end of the mounting bracket 12 is provided with a display screen 13, and the rear end of the mounting bracket 12 is provided with a circuit board assembly 14 that is electrically connected to the display screen 13.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A car instrument panel with good heat dissipation, comprising an instrument panel front housing (1) and an instrument panel rear housing (2) disposed on the rear end face of the instrument panel front housing (1), characterized in that: The rear end face of the instrument rear housing (2) is provided with a receiving groove (201). The receiving groove (201) is provided with a heat dissipation port (202) communicating with the interior of the instrument rear housing (2). A heat-conducting plate (3) is fixedly installed inside the receiving groove (201). Multiple heat dissipation fins (4) are evenly arranged along the length of the rear end face of the heat-conducting plate (3). The multiple heat dissipation fins (4) are parallel to each other and spaced apart. Heat dissipation surfaces (5) communicating with the interior of the instrument rear housing (2) are symmetrically opened on both sides of the receiving groove (201). A connecting component is symmetrically arranged. An intake fan assembly (601) and an exhaust fan assembly (602) are respectively arranged behind the two heat dissipation surfaces (5). A limiting strip (7) is symmetrically arranged on the front end face of the intake fan assembly (601) and the exhaust fan assembly (602). A first connecting arm (8) is arranged on the front end face of the limiting strip (7). A first locking block (9) is arranged on the front end face of the first connecting arm (8) to engage with the connecting component. The outer diameter of the first locking block (9) is larger than that of the first connecting arm (8). A slot is formed between the first connecting arm (8) and the first locking block (9).

2. The automotive instrument panel with good heat dissipation effect according to claim 1, characterized in that: The connecting assembly includes a base plate (1001) disposed on the rear end face of the instrument rear housing (2), limiting plates (1002) symmetrically disposed on both sides of the rear end face of the base plate (1001), second connecting arms (1003) symmetrically disposed on the base plate (1001) between the two limiting plates (1002), and second locking blocks (1004) disposed at opposite ends of the two second connecting arms (1003), with the two second connecting arms (1003) arranged vertically at intervals.

3. The automotive instrument panel with good heat dissipation effect according to claim 2, characterized in that: When the intake fan assembly (601), the exhaust fan assembly (602) and the connecting assembly are fixedly connected, the inner sidewall of the limiting plate (1002) abuts against the sidewall of the first locking block (9), the second locking block (1004) is located inside the slot, the rear end face of the first locking block (9) abuts against the front end face of the second locking block (1004), the rear end face of the second locking block (1004) abuts against the front end face of the limiting strip (7), and both ends of the first locking block (9) abut against the second connecting arm (1003).

4. The automotive instrument panel with good heat dissipation effect according to claim 2, characterized in that: The first card block (9) has a first driving slope (901) at both ends of its front end face, and the second card block (1004) has a second driving slope (10041) at its rear end face that matches the first driving slope (901).

5. The automotive instrument panel with good heat dissipation effect according to claim 1, characterized in that: The intake fan assembly (601) and exhaust fan assembly (602) include a mounting housing (1101), a mounting hole (1102) located at the center of the mounting housing (1101), a motor (1103) located at the center of the mounting hole (1102), and fan blades (1104) located at the drive end of the motor (1103). The motor (1103) is provided with a mounting rod (1105) in an annular shape that is fixedly connected to the mounting hole (1102). The limiting strip (7) is provided on the mounting housing (1101) on both sides of the mounting hole (1102).

6. The automotive instrument panel with good heat dissipation effect according to claim 1, characterized in that: The instrument front housing (1) and instrument rear housing (2) are provided with mounting brackets (12), the front end of the mounting bracket (12) is provided with a display screen (13), and the rear end of the mounting bracket (12) is provided with a circuit board assembly (14) electrically connected to the display screen (13).