Heater assembly and MCH heater
By directly mounting the temperature sensor in the assembly hole on the side of the heating core in the heater assembly, and isolating the chamber through a sealed structure, the problems of temperature acquisition delay and fluid leakage are solved, thus achieving accurate temperature control and operational stability of the heater.
Patent Information
- Application Number
- CN202520174404.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-26
AI Technical Summary
In existing heater assemblies, the temperature sensor indirectly obtains the temperature of the heating core through a partition, which has a delay and cannot accurately reflect the current state. Furthermore, fluid leakage in the heating core may affect the normal operation of the control board.
The temperature sensor is directly installed in the mounting hole on the side of the heating core, and is sealed to the heating core to achieve direct temperature acquisition. The sealing ring and sealing coating ensure the isolation of the chamber and prevent fluid leakage.
This enables timely and accurate acquisition of the heating core temperature, improving operational safety and reliability, and reducing the impact of fluid leakage on the control board.
Smart Images
Figure CN223869493U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heaters, and more specifically, to a heater assembly and an MCH heater. Background Technology
[0002] Currently, electric vehicles are developing rapidly, and driving range is a crucial indicator for evaluating them. Especially in low-temperature environments, heating of the battery and passenger compartment is necessary. Existing technologies often employ PTC heaters in vehicle thermal management systems. For example, a PTC heater is attached to one side of a water chamber using thermally conductive silicone to heat the liquid inside, achieving heat transfer through heat exchange between the liquid and the components being heated. During heating, a temperature sensor is typically included to monitor the heating temperature and facilitate control of the heating strategy.
[0003] The inventors discovered during their research that existing heater assemblies have at least the following drawbacks:
[0004] The heater housing has two independent cavities with a partition between them. The heating core is installed in one cavity, and the electronic control board and temperature sensor are installed in the other cavity. The temperature sensor is attached to the partition to indirectly obtain the temperature of the heating core. The obtained temperature is delayed and cannot accurately reflect the current temperature information of the heating core. Utility Model Content
[0005] The purpose of this invention includes, for example, providing a heater assembly and an MCH heater, which can obtain the current temperature information of the heating core in a timely and effective manner, and the fluid in the cavity where the heating core is located is not easily leaked into the cavity where the electronic control board is located, resulting in a low failure rate and high operational safety.
[0006] The embodiments of this utility model can be implemented as follows:
[0007] In a first aspect, this utility model provides a heater assembly, including a heater housing, a heating core, and a temperature sensor, wherein:
[0008] The heater housing has a first chamber, a second chamber, a first assembly hole, and a second assembly hole, both of which connect to the first chamber and the second chamber. The heating core is installed in the first chamber, and the electrode plates of the heating core pass through the first assembly hole and are sealed to the heater housing. The temperature sensor is installed in the second assembly hole and is sealed to the heater housing, and the temperature sensor is used to acquire the temperature of the heating core.
[0009] In an optional embodiment, a first sealing ring is provided in the first assembly hole, and the electrode sheet passes through the first sealing ring.
[0010] In an optional embodiment, the first sealing ring is bonded or heat-sealed to the heater housing.
[0011] In an optional embodiment, a second sealing ring is provided in the second assembly hole, and the temperature sensor is fixed inside the second sealing ring.
[0012] In an optional embodiment, the second sealing ring is bonded or heat-sealed to the heater housing.
[0013] In an alternative embodiment, one side of the temperature sensor is flush with or extends into the bottom of the first chamber.
[0014] In an optional embodiment, the temperature sensor is positioned at a location corresponding to the water inlet of the heating core.
[0015] In an optional embodiment, the heater housing includes an integral outer shell and a partition, the outer shell and the partition cooperating to define a first chamber and a second chamber that are independent of each other; the first mounting hole and the second mounting hole are both provided on the partition.
[0016] In an optional embodiment, the surface of the electrode sheet or the temperature sensor is provided with a sealing coating; or / and, the wall of the first mounting hole or the wall of the second mounting hole is provided with a sealing coating.
[0017] Secondly, this utility model provides an MCH heater, the MCH heater comprising:
[0018] The heater assembly described in any of the foregoing embodiments.
[0019] The beneficial effects of this utility model embodiment include, for example:
[0020] In summary, the heater assembly provided in this embodiment, by placing the temperature sensor inside the second mounting hole, allows the temperature sensor to directly contact the heating core located in the first chamber, thereby directly acquiring the temperature of the heating core. The acquired temperature parameter information has virtually no lag and accurately reflects the current temperature of the heating core, facilitating the regulation of the heating core's operating state based on the temperature obtained by the temperature sensor. Simultaneously, both the electrode plates and the temperature sensor are sealed to the heater housing, ensuring good isolation between the first and second chambers. Even if fluid leakage occurs in the heating core during operation, it is unlikely to enter the second chamber through the first and second mounting holes, thus minimizing disruption to the normal operation of the electronic control board within the second chamber and improving operational safety and reliability. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of a heater assembly according to an embodiment of this application;
[0023] Figure 2 This is a cross-sectional view of the heater assembly according to an embodiment of this application;
[0024] Figure 3 This is a schematic diagram of the heater housing according to an embodiment of this application;
[0025] Figure 4 This is a schematic diagram of the heater housing according to an embodiment of this application.
[0026] icon:
[0027] 100-Heater housing; 101-First chamber; 102-Second chamber; 103-First mounting hole; 104-Second mounting hole; 110-Outer shell; 120-Partition plate; 200-Heating core; 210-Electrode sheet; 300-Temperature sensor; 310-Conductive pin; 400-Electrical control board; 500-First sealing ring; 600-Second sealing ring. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0033] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0034] In existing technology, the heating core 200 and the electronic control board 400 of the vehicle heater are located in different chambers, separated by a partition 120. This prevents leakage in the heating core 200 during operation from directly affecting the normal operation of the electronic control board 400. To obtain the operating temperature of the heating core 200, a temperature sensor 300 is typically installed in the chamber containing the electronic control board 400. The temperature sensor 300 is attached to the partition 120, and the temperature of the heating core 200 is conducted to the temperature sensor 300 through the partition 120, thus indirectly obtaining the temperature of the heating core 200. However, the temperature obtained by the temperature sensor 300 is delayed and cannot accurately reflect the current state of the heating core 200.
[0035] In view of this, the designers have provided a heater assembly that can directly obtain the temperature of the heating core 200 by attaching the temperature sensor 300 directly to the heating core 200.
[0036] Please refer to Figures 1-4This embodiment provides a heater assembly, which includes a heater housing 100, a heating core 200, and a temperature sensor 300. The heater housing 100 is provided with a first chamber 101, a second chamber 102, a first mounting hole 103, and a second mounting hole 104, both of which simultaneously connect to the first chamber 101 and the second chamber 102. The heating core 200 is installed within the first chamber 101, and its electrode plates 210 pass through the first mounting hole 103 and are sealed to the heater housing 100. The temperature sensor 300 is installed within the second mounting hole 104 and is sealed to the heater housing 100; the temperature sensor 300 is used to acquire the temperature of the heating core 200.
[0037] As described above, the working principle of the heater assembly provided in this embodiment is as follows:
[0038] Refrigerant is introduced into the flow channel of the heating core 200, and the heating module of the heating core 200 heats the refrigerant. After being heated, the refrigerant flows to a set position to heat the component at that position. During the operation of the heating core 200, the temperature sensor 300 can acquire the temperature of the heating core 200 in real time, thereby facilitating the control of the working state of the heating core 200. Since the temperature sensor 300 is located in the second assembly hole 104 communicating with the first chamber 101, the temperature sensor 300 is in direct contact with the heating core 200 located in the first chamber 101, and can directly acquire the temperature of the heating core 200. The acquired temperature parameter information has virtually no lag and can accurately reflect the current temperature of the heating core 200, which is beneficial for controlling the working state of the heating core 200 through the temperature acquired by the temperature sensor 300.
[0039] Meanwhile, the electrode sheet 210 and the temperature sensor 300 are sealed to the heater housing 100, and the first chamber 101 and the second chamber 102 are well isolated. When the heating core 200 is in operation, even if there is fluid leakage in the heating core 200, it is not easy to enter the second chamber 102 through the first assembly hole 103 and the second assembly hole 104, and it is not easy to affect the normal use of the electronic control board 400 in the second chamber 102, thus improving the safety and reliability of operation.
[0040] The following embodiments illustrate the details of the heater assembly of this application by way of example.
[0041] Please refer to Figures 1-4 In this embodiment, the heater assembly includes a heater housing 100, a heating core 200, a temperature sensor 300, and an electronic control board 400. The heating core 200, the temperature sensor 300, and the electronic control board 400 are all mounted on the heating housing. The heating core 200 and the temperature sensor 300 are both electrically connected to the electronic control board 400. The temperature sensor 300 is used to obtain the temperature of the heating core 200.
[0042] Optionally, the heater housing 100 includes an integrally structured outer shell 110 and a partition 120. Both the outer shell 110 and the partition 120 can be made of plastic and can be integrally molded by injection molding, resulting in high molding quality and efficiency. The outer shell 110 and the partition 120 together define a first chamber 101 and a second chamber 102, which are located on both sides of the partition 120 and share the partition 120. The heating core 200 is installed in the first chamber 101, and the electrical control board 400 is installed in the second chamber 102. Simultaneously, the partition 120 is provided with a first mounting hole 103 and a second mounting hole 104. The two ends of the first mounting hole 103 connect to both the first chamber 101 and the second chamber 102, and the two ends of the second mounting hole 104 also connect to both the first chamber 101 and the second chamber 102. The electrode 210 of the heating core 200 can be inserted into the first mounting hole 103, and the temperature sensor 300 can be installed in the second mounting hole 104.
[0043] It should be understood that there can be multiple first mounting holes 103, consistent with the number of electrode plates 210 of the heating core 200, ensuring that each electrode plate 210 of the heating core 200 can be inserted into a corresponding first mounting hole 103. Furthermore, the first mounting hole 103 can be a flat hole, matching the shape and structure of the sheet-like electrode plate 210. There can be only one second mounting hole 104, which can be used with a temperature sensor 300. Moreover, the position of the second mounting hole 104 can correspond to the position of the water inlet of the heating core 200. When the temperature sensor 300 is installed in the second mounting hole 104, the temperature sensor 300 can directly obtain the temperature at the position of the water inlet of the heating core 200, and this temperature information can more accurately reflect the temperature of the heating core 200.
[0044] It should be noted that, in order to improve the sealing performance of the first mounting hole 103 and the second mounting hole 104, and to ensure that the liquid leaking from the first chamber 101 does not easily enter the second chamber 102 through the first mounting hole 103 and the second mounting hole 104, thereby improving the safety of the electronic control board 400 located in the second chamber 102, the electrode plate 210 and the hole wall of the first mounting hole 103 can be configured to be sealed together, and the temperature sensor 300 and the hole wall of the second mounting hole 104 can be configured to be sealed together.
[0045] For example, in one embodiment, a first sealing ring 500 can be installed in the first mounting hole 103, and the electrode plate 210 passes through the first sealing ring 500, thereby achieving a sealing fit between the electrode plate 210 and the first mounting hole 103. Similarly, a second sealing ring 600 can be provided in the second mounting hole 104, and the temperature sensor 300 is fixed in the second sealing ring 600.
[0046] It should be understood that the first sealing ring 500 and the second sealing ring 600 can be bonded or heat-sealed to the heater housing 100, which is a simple and reliable fixing method and can improve the sealing performance.
[0047] Alternatively, in other embodiments, the surface of the electrode sheet 210 or the temperature sensor 300 is provided with a sealing coating; or / and, the wall of the first mounting hole 103 or the wall of the second mounting hole 104 is provided with a sealing coating. By providing a sealing coating, the sealing effect can be enhanced.
[0048] Obviously, in other embodiments, the sealing ring can be used in conjunction with the sealing coating to further enhance the sealing effect.
[0049] In this embodiment, optionally, the temperature sensor 300 is installed at the second mounting hole 104. In order to facilitate the contact between the surface of the temperature sensor 300 and the heating core 200, one side surface of the temperature sensor 300 can be flush with the bottom of the first chamber 101 or one side surface of the temperature sensor 300 can be inserted into the first chamber 101. When the temperature sensor 300 and the heating core 200 are in contact, they are less likely to interfere with the partition 120 and have good contact.
[0050] It should be noted that the temperature sensor 300 can be electrically connected to the control board 400 via conductive pin 310. The control board 400 can be a PCB board.
[0051] The heater assembly provided in this embodiment, by placing the temperature sensor 300 inside the second mounting hole 104, allows the temperature sensor 300 to directly contact the surface of the heating core 200. The temperature obtained by the temperature sensor 300 is closer to the current temperature of the heating core 200, facilitating the control of the heating core 200. Furthermore, both the temperature sensor 300 and the electrode plate 210 are sealed to the partition plate 120. If leakage occurs during operation of the heating core 200, the liquid in the first chamber 101 is less likely to enter the second chamber 102 through the first mounting hole 103 and the second mounting hole 104, thus preventing damage to the control board 400.
[0052] This embodiment also provides an MCH heater, which includes the heater assembly of the above embodiment, and has at least the advantages of high temperature acquisition accuracy and stable and reliable operation.
[0053] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A heater assembly, characterized in that, It includes a heater housing (100), a heating core (200), and a temperature sensor (300), wherein: The heater housing (100) is provided with a first chamber (101), a second chamber (102), a first mounting hole (103), and a second mounting hole (104). The first mounting hole (103) and the second mounting hole (104) are both connected to the first chamber (101) and the second chamber (102). The heating core (200) is installed in the first chamber (101), and the electrode plate (210) of the heating core (200) passes through the first mounting hole (103) and is sealed to the heater housing (100). The temperature sensor (300) is installed in the second mounting hole (104) and is sealed to the heater housing (100). The temperature sensor (300) is used to obtain the temperature of the heating core (200).
2. The heater assembly according to claim 1, characterized in that: A first sealing ring (500) is provided in the first assembly hole (103), and the electrode sheet (210) passes through the first sealing ring (500).
3. The heater assembly according to claim 2, characterized in that: The first sealing ring (500) is bonded or heat-sealed to the heater housing (100).
4. The heater assembly according to claim 1, characterized in that: A second sealing ring (600) is provided in the second assembly hole (104), and the temperature sensor (300) is fixed in the second sealing ring (600).
5. The heater assembly according to claim 4, characterized in that: The second sealing ring (600) is bonded or heat-sealed to the heater housing (100).
6. The heater assembly according to any one of claims 1-5, characterized in that: One side of the temperature sensor (300) is flush with the bottom of the first chamber (101) or extends into the first chamber (101).
7. The heater assembly according to claim 6, characterized in that: The temperature sensor (300) is located at a position corresponding to the water inlet of the heating core (200).
8. The heater assembly according to claim 1, characterized in that: The heater housing (100) includes an integral outer shell (110) and a partition (120), the outer shell (110) and the partition (120) cooperate to define a first chamber (101) and a second chamber (102) that are independent of each other; the first mounting hole (103) and the second mounting hole (104) are both provided on the partition (120).
9. The heater assembly according to claim 8, characterized in that: The surface of the electrode sheet (210) or the temperature sensor (300) is provided with a sealing coating; and / or the wall of the first mounting hole (103) or the wall of the second mounting hole (104) is provided with a sealing coating.
10. An MCH heater, characterized in that, The MCH heater includes: The heater assembly according to any one of claims 1-9.