High-speed electric motorcycle PTC heater

Abstract

The utility model belongs to the related technical field of electric motorcycle heater, concretely relates to a high -speed electric motorcycle PTC heater, including plastic water box, plastic water box is through the multiple mounting screws of setting on its upper end and cast aluminium PTC box detachable connection, the junction of cast aluminium PTC box and plastic water box is provided with water channel sealing ring, the left end detachable mounting of cast aluminium PTC box has high -voltage plug -in spare. The utility model discloses through the cooperation of high -voltage plug -in spare and water channel sealing ring's cooperation can ensure electrical safety under high pressure in the process of using this device, then through the setting of aluminium top cover and cast aluminium PTC box can optimize the heat dissipation performance of this device, and has better voltage -withstand effect, through the setting of NTC sensor can real -time monitoring PTC heating temperature to reach the monitoring effect of heating temperature, guarantee the accuracy of heating temperature, through the setting of PTC heating component can support the characteristics of fast heating and self -limiting temperature.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric motorcycle heaters, specifically relating to a PTC heater for high-speed electric motorcycles. Background Technology

[0002] A high-speed electric motorcycle PTC heater is a heating device designed using the constant-temperature heating characteristics of PTC thermistors. In low-to-medium power heating applications, this high-speed electric motorcycle PTC heater has advantages that traditional heating elements cannot match, such as constant-temperature heating, no open flame, high heat conversion rate, minimal impact from power supply voltage, and long natural life. Its application in electric heating appliances is increasingly favored by R&D engineers. This high-speed electric motorcycle PTC heater, also called a PTC heating element, is composed of a PTC ceramic heating element and an aluminum tube, and has wide applications in the electric motorcycle field.

[0003] Problems with existing technology:

[0004] Traditional PTC heaters for high-speed electric motorcycles are difficult to adapt to high-voltage platforms above 200V. Their insulation and withstand voltage design are weak, which can easily lead to leakage risks. Furthermore, a single temperature detection point cannot accurately monitor the inlet and outlet water temperatures of key components, and the lag in temperature control can easily lead to local overheating or energy waste. Utility Model Content

[0005] The purpose of this utility model is to provide a PTC heater for high-speed electric motorcycles, which can solve the problems of traditional PTC heaters for high-speed electric motorcycles being difficult to adapt to high-voltage platforms above 200V, having weak insulation and withstand voltage design, easily causing leakage risks, and having a single temperature detection point that cannot accurately monitor the inlet and outlet water temperatures of key components, and temperature control lag that can easily cause local overheating or energy waste.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A PTC heater for high-speed electric motorcycles includes a plastic water tank, which is detachably connected to a cast aluminum PTC box via multiple mounting screws at its upper end. A water channel sealing ring is provided at the connection between the cast aluminum PTC box and the plastic water tank. A high-voltage plug is detachably installed on the left end of the cast aluminum PTC box, and a low-voltage plug is detachably installed on the right end. The cast aluminum PTC box is bonded to three sets of PTC heating elements via structural adhesive applied to three mounting slots inside. An NTC sensor is installed inside the cast aluminum PTC box, and a PCBA is installed on the upper side inside the cast aluminum PTC box. The upper end of the cast aluminum PTC box is bonded to a PTC aluminum cover via sealant.

[0008] The structural adhesive used for bonding the cast aluminum PTC box to the PTC heating element is NS-084A / B two-component structural adhesive. The dimensions of the cast aluminum PTC box are 146*91.2*68.6mm. The material of the cast aluminum PTC box is ADC12. The cast aluminum PTC box is treated with impregnation to prevent leakage.

[0009] The waterway sealing ring measures 126.5*69.5*6.2mm and is made of black EPDM material, possessing excellent resistance to oxidation, ozone, and corrosion.

[0010] The technical effects achieved by this utility model are as follows:

[0011] This invention ensures electrical safety under high pressure through the combination of a high-pressure plug and a water channel sealing ring. The aluminum top cover and cast aluminum PTC box optimize heat dissipation and provide good pressure resistance. The NTC sensor monitors the PTC heating temperature in real time, ensuring accurate temperature control. The PTC heating element supports rapid heating and self-limiting temperature control. The PCBA control module integrates overvoltage and overcurrent protection circuits and maintains communication with the vehicle's BMS. Attached Figure Description

[0012] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a right-view stereoscopic structural diagram of the present invention;

[0014] Figure 3 This is a schematic diagram of the left-side stereoscopic structure of this utility model;

[0015] Figure 4 This is a bottom-view three-dimensional structural diagram of the present invention;

[0016] Figure 5 This is a top-view three-dimensional structural diagram of the present invention;

[0017] Figure 6 This is a schematic diagram of the exploded structure of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. PTC aluminum cover; 2. High voltage connector; 3. Cast aluminum PTC box; 4. Low voltage connector; 5. Plastic water box; 6. Water channel sealing ring; 7. PCBA; 8. NTC sensor; 9. PTC heating element. Detailed Implementation

[0020] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0021] like Figure 1-6 As shown, a PTC heater for a high-speed electric motorcycle includes a plastic water tank 5. The plastic water tank 5 is detachably connected to a cast aluminum PTC box 3 via multiple mounting screws on its upper end. A water channel sealing ring 6 is provided at the connection between the cast aluminum PTC box 3 and the plastic water tank 5. A high-voltage plug 2 is detachably installed on the left end of the cast aluminum PTC box 3. The cooperation of the high-voltage plug 2 and the water channel sealing ring 6 ensures electrical safety under high and low pressure during the use of the device. The water channel sealing ring 6 ensures a sealing effect at the connection between the cast aluminum PTC box 3 and the plastic water tank 5. A low-voltage plug 4 is detachably installed on the right end of the cast aluminum PTC box 3. The cast aluminum PTC box 3 is equipped with three internal safety features... The structural adhesive applied to the slots is cured and bonded to the three sets of PTC heating elements 9. The PTC heating elements can support rapid heating and self-limiting temperature. The cast aluminum PTC box 3 is equipped with an NTC sensor 8, which can monitor the heating temperature of the PTC heating elements in real time. In combination with the PTC heating elements, it can achieve the self-limiting temperature effect. A PCBA 7 is set on the upper side of the cast aluminum PTC box 3. The upper end of the cast aluminum PTC box 3 is cured and bonded to the PTC aluminum cover 1 with sealant. The PCBA 7 control module can provide overcurrent protection circuit to ensure that the device communicates with the BMS of the electric motorcycle during use.

[0022] Furthermore, the structural adhesive used for bonding the cast aluminum PTC box 3 to the PTC heating element 9 is NS-084A / B two-component structural adhesive. The dimensions of the cast aluminum PTC box 3 are 146*91.2*68.6mm, the material of the cast aluminum PTC box 3 is ADC12, and the cast aluminum PTC box 3 undergoes impregnation to prevent leakage. The dimensions of the water channel sealing ring 6 are 126.5*69.5*6.2mm, the material of the water channel sealing ring 6 is black EPDM, and it has excellent oxidation resistance, ozone resistance, and corrosion resistance.

[0023] The working principle of this utility model is as follows:

[0024] The device is installed in a suitable position on the electric motorcycle via the high-voltage plug 2. During the use of the device, the PTC heating component can heat the coolant entering the plastic water tank 5. Then, with the cooperation of the NTC sensor 8, the heating temperature can be prevented from being too high, ensuring that the heating temperature is appropriate. In this way, the heating of the coolant can achieve the heating effect on the battery pack of the electric motorcycle in low-temperature environments, avoiding the situation where the battery pack temperature is too low in low-temperature environments, which would affect its performance.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A PTC heater for high-speed electric motorcycles, comprising a plastic water tank (5), characterized in that: The plastic water box (5) is detachably connected to the cast aluminum PTC box (3) by a number of mounting screws on its upper end. A water channel sealing ring (6) is provided at the connection between the cast aluminum PTC box (3) and the plastic water box (5). A high-pressure plug (2) is detachably installed on the left end of the cast aluminum PTC box (3). A low-pressure plug (4) is detachably installed on the right end of the cast aluminum PTC box (3). The cast aluminum PTC box (3) is cured and bonded to three sets of PTC heating components (9) by structural adhesive applied in three mounting slots opened inside it. An NTC sensor (8) is provided inside the cast aluminum PTC box (3). A PCBA (7) is provided on the upper side inside the cast aluminum PTC box (3). The upper end of the cast aluminum PTC box (3) is cured and bonded to the PTC aluminum cover (1) by sealant.

2. The PTC heater for high-speed electric motorcycles according to claim 1, characterized in that: The structural adhesive used for bonding the cast aluminum PTC box (3) to the PTC heating element (9) is NS-084A / B two-component structural adhesive. The size of the cast aluminum PTC box (3) is 146*91.2*68.6mm. The material of the cast aluminum PTC box (3) is ADC12. The cast aluminum PTC box (3) is treated with impregnation to prevent leakage.

3. A PTC heater for high-speed electric motorcycles according to claim 1, characterized in that: The waterway sealing ring (6) has a size of 126.5*69.5*6.2mm and is made of black EPDM material with excellent resistance to oxidation, ozone and corrosion.

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