Heating device, compressor integrated device, thermal management system and vehicle

Abstract

The application discloses a heating device, a compressor integrated device, a thermal management system and a vehicle, and relates to the technical field of thermal management. The heating device comprises a device main body and a plurality of adapters. The device main body is provided with a fluid channel and a plurality of flow channel interfaces in communication with the fluid channel. The device main body is provided with a plurality of interface portions, each of which is provided with a flow channel interface. Each adapter is correspondingly sleeved on an interface portion. The adapter is used for connecting the interface portion with a lead-out piece on an external pipeline, or the heating device further comprises a lead-out piece. The adapter and the lead-out piece are correspondingly arranged. The lead-out piece is provided with a connecting channel, a first end portion and a second end portion located at two ends of the connecting channel. The first end portion is connected with the adapter, and the second end portion is configured to be suitable for connecting the external pipeline, so that the fluid channel and the external pipeline are in communication. The technical scheme provided by the application can improve the connection efficiency, reduce the processing difficulty or reduce the maintenance cost.

Description

Technical Field

[0001] This application relates to the field of thermal management technology, and in particular to a heating device, a compressor integrated device, a thermal management system, and a vehicle. Background Technology

[0002] With the development of automotive technology, the functions of automotive thermal management systems are becoming increasingly complex, and the requirements for integration are constantly increasing. In highly integrated vehicle thermal management systems, the compressor not only needs to provide cooling functions but is also expected to integrate heating functions. These heating devices typically have fluid channels that heat the fluid flowing through them, enabling heat pump circulation or rapid heating of the battery and passenger compartment, thereby improving the overall vehicle energy efficiency and thermal management performance. However, in related technologies, highly integrated vehicle thermal management systems still face challenges such as low connection efficiency between the heating device and other piping within the thermal management system, or high processing difficulty and maintenance costs. Summary of the Invention

[0003] The main objective of this application is to propose a heating device, a compressor integrated device, a thermal management system, and a vehicle, which improves the connection efficiency between the heating device and other pipelines of the thermal management system, while reducing the difficulty of processing or the maintenance cost.

[0004] To achieve the above objectives, the present application proposes a heating device comprising a main body and multiple adapters. The main body has a fluid channel and multiple flow channel interfaces communicating with the fluid channel. The main body is provided with multiple interface portions, each of which is provided with the flow channel interface. Each adapter is correspondingly sleeved on one of the interface portions. The adapter is used to connect the interface portion to a lead-out on an external pipeline. Alternatively, the heating device may further include a lead-out. The adapter and the lead-out are arranged in a one-to-one correspondence. The lead-out has a connecting channel, a first end and a second end located at both ends of the connecting channel. The first end engages with the adapter, and the second end is configured to connect to an external pipeline, thereby enabling communication between the fluid channel and the external pipeline.

[0005] In some embodiments, the adapter snaps into the main body of the device.

[0006] In some embodiments, one of the interface portion and the adapter has a recess and the other has a protrusion, the recess engaging with the protrusion to at least axially limit the adapter in the interface portion.

[0007] In some embodiments, the adapter includes a connecting cylinder and a claw disposed on the connecting cylinder, the connecting cylinder being sleeved on the interface portion; the claw has the recessed portion, or the claw has the protruding portion.

[0008] In some embodiments, the connecting cylinder has a first end and a second end that are axially opposite each other. The connecting cylinder has an opening that extends through both sides of its thickness. The claw is disposed in the opening and is integrally formed with the connecting cylinder. The outer peripheral wall of the interface portion has the recess, and the claw has the protrusion. The connecting cylinder is sleeved around the periphery of the interface portion from the first end. The protrusion is engaged with the recess and abuts against the outer wall of the interface portion to achieve axial positioning of the adapter in the interface portion.

[0009] In some embodiments, the interface portion includes a first interface segment and a second interface segment connected together, the flow channel interface is in communication with the first interface segment, the outer diameter of the first interface segment is smaller than the outer diameter of the second interface segment; the outer wall of the first interface segment is provided with a raised portion, the raised portion and the outer wall of the second interface segment define the recess, and the raised portion abuts against the protrusion on the adapter.

[0010] In some embodiments, the adapter has an elastic portion, and the interface portion applies an expansion force to the elastic portion in a radial direction; the first end is sleeved on the adapter, and the lead-out portion applies a contraction force to the elastic portion in a radial direction.

[0011] In some embodiments, the elastic portion is configured as a spring arm having a snap-fit ​​section and an anti-detachment section arranged sequentially along the axial direction of the adapter; the expansion force applied radially by the interface portion acts on the snap-fit ​​section, and the contraction force applied radially by the lead-out member acts on the anti-detachment section.

[0012] In some embodiments, the spring arm has two ends disposed opposite to each other along the axial direction of the adapter; the adapter includes a connecting cylinder sleeved on the interface portion, one end of the spring arm near the anti-detachment section is connected to the connecting cylinder, and the one end of the spring arm near the anti-detachment section is configured as a free end.

[0013] In some embodiments, the length of the anti-detachment section along the axial direction of the adapter is not less than 1 mm.

[0014] In some embodiments, the adapter includes a connecting cylinder and a flange portion disposed on the connecting cylinder, the connecting cylinder being sleeved on the interface portion; the flange portion being limitedly connected to the main body of the device; and / or, the flange portions of adjacent adapters are mutually limitedly fitted to form a circumferential limitation of the adapter portion at the interface portion.

[0015] In some embodiments, one of the device body and the flange is provided with a limiting hole, and the other is provided with a limiting pin; the limiting pin passes through the limiting hole to at least constitute a circumferential limiting of the adapter.

[0016] In some embodiments, in two adjacent adapters, one adapter has a plug-in portion and the other adapter has a slot for the plug-in portion to be inserted into.

[0017] In some embodiments, the first end is provided with a plug-in interface communicating with the connection channel; the adapter and the interface portion are inserted into the connection channel through the plug-in interface, and the interface portion is sealed and plugged into the inner wall of the connection channel.

[0018] In some embodiments, the connection channel includes a first channel and a second channel connected in sequence, the insertion interface is connected to the first channel; the cross-sectional area of ​​the first channel is larger than the cross-sectional area of ​​the second channel; the connecting cylinder is inserted into the first channel through the insertion interface, the interface portion is inserted into the second channel through the insertion interface, and the interface portion is sealed and inserted into the inner wall of the second channel.

[0019] In some embodiments, the heating device further includes a sealing member sleeved on the interface portion; the sealing member is located between the interface portion and the inner wall of the first channel to seal the gap between the interface portion and the inner wall of the first channel.

[0020] In some embodiments, the adapter is provided with a first bayonet, and the lead-out member is provided with a second bayonet; the heating device further includes a snap-fit ​​member, which snaps into the first bayonet and the second bayonet to lock the adapter and the lead-out member together.

[0021] In some embodiments, the outer wall of the adapter is provided with a limiting rib, which extends along the axial direction of the adapter; the lead-out member is provided with a limiting groove on the inner wall of the first channel for the limiting rib to be inserted.

[0022] In some embodiments, the flow channel interface includes a liquid inlet interface and a liquid outlet interface, and the number of interface portions is two, with one interface portion configured as a liquid inlet interface portion and the other interface portion configured as a liquid outlet interface portion.

[0023] In some embodiments, the device body includes a housing and a heater disposed on the housing; the heater includes a plurality of heating elements and a connecting portion; the heating elements are provided with heating channels, the heating channels forming at least a portion of the fluid channel, and the connecting portion connecting the plurality of heating elements; at least two of the heating elements pass through the housing and partially protrude from the housing, and the portions of the heating elements protruding from the housing are configured as the interface portion.

[0024] In some embodiments, each of the heating elements includes a base and a heating portion, the base having a channel; the heating portion is provided on the outer peripheral wall of the base, the heating portion extending circumferentially along the base so that the channel is configured as the heating flow channel; the cross-section of the base along the extension direction perpendicular to the channel is a continuous and complete annular surface.

[0025] This application also proposes a compressor integrated device, which includes a compressor, a heating device, and a controller. The heating device is disposed on the compressor and is configured as described above. The controller is electrically connected to both the compressor and the heating device.

[0026] This application also proposes a thermal management system, which includes the heating device or compressor integrated device as described above.

[0027] This application also proposes a vehicle that includes the thermal management system described above.

[0028] The technical solution of this application utilizes the combined use of an adapter and a lead-out component. The adapter is fitted onto the interface and fixedly connected to the main body of the device, while the lead-out component is connected to the adapter via a snap-fit ​​mechanism, enabling rapid connection between the interface of the heating device and external pipelines. Compared to traditional screw or flange connections, in this embodiment, both the adapter and the lead-out component are connected to the main body via a snap-fit ​​mechanism, resulting in a simple structure that requires no additional tools and can be assembled by hand, leading to high assembly efficiency. Secondly, each interface is independently configured with one adapter and one lead-out component, forming a standardized modular unit. Because the interface components can be of uniform size and shape, there is no need to customize adapters for heating devices with varying numbers of interface components, reducing processing difficulty. The adapter and lead-out component can be mass-produced, reducing production costs and material waste. In terms of maintenance, if an interface, adapter, or lead-out component is damaged, only the corresponding module needs to be replaced, without replacing the entire main body of the device, thus significantly reducing maintenance costs and downtime. Furthermore, the modular design facilitates upgrades or adaptation to different specifications of external pipelines, enhancing the flexibility and versatility of the device. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of an embodiment of the compressor integrated device provided in this application; Figure 2 A schematic diagram of the structure of an embodiment of the heating device provided in this application; Figure 3 for Figure 2 A partially enlarged view of the cross-sectional view of Embodiment 1 shown; Figure 4 for Figure 2 A partially enlarged view of another cross-sectional view of the embodiment shown; Figure 5 for Figure 2 A partially enlarged view of another cross-sectional view of the embodiment shown; Figure 6 A schematic diagram of the structure of an embodiment of the adapter provided in this application; Figure 7 for Figure 6 A cross-sectional view of the embodiment shown; Figure 8 for Figure 6 A cross-sectional view of the embodiment shown; Figure 9 A schematic diagram of another embodiment of the adapter provided in this application; Figure 10 A schematic diagram of the structure of an embodiment of the lead-out provided in this application; Figure 11 for Figure 10 A cross-sectional view of one location in the illustrated embodiment; Figure 12 for Figure 10 A cross-sectional view of another part of the embodiment shown; Figure 13 A schematic diagram of the structure of an embodiment of the heater provided in this application.

[0031] Explanation of icon numbers: 1. Compressor integrated unit; 10. Compressor; 20. Heating device; 21. Main body of the device; 211. Fluid channel; 211a. Heating channel; 212. Channel interface; 212a. Liquid inlet interface; 212b. Liquid outlet interface; 213. Interface section; 2131. First interface section; 2132. Second interface section; 2131a. Raised section; 214. Concave part; 215. Protruding part; 216. Limiting pin; 25. Shell; 25a. Receiving cavity; 26. Heater; 261. Heating element; 261a. Base; 261b. Heating part; 262. Connecting part; 27. Adapter; 271. Connecting cylinder; 271a. Opening; 271b. Second bayonet; 272. Claw; 2721. Spring arm; 2722. Anti-detachment section; 2723. Snap-fit ​​section; 2712a. Elastic part; 275. Limiting rib; 276. Flange part; 277. Limiting hole; 278. Insertion part; 279. Slot; 28. Lead-out component; 280. Connecting channel; 280a. First channel; 280b. Second channel; 281. First end; 281a. Insertion interface; 281b. First bayonet; 281c. Limiting groove; 282. Second end; 29. ​​Seal; 30. Snap-fit ​​component; 30a. Snap-fit ​​arm; 30b. Operating arm; 30c. Buckling part; w. Circumferential; z. Axial; The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0035] With the development of vehicle technology, the functions of vehicle thermal management systems are becoming increasingly complex, and the requirements for integration are constantly increasing; currently, highly integrated thermal management systems are commonly used. A highly integrated thermal management system generally consists of a combination of a compressor and a heating device. The heating device typically has a fluid channel, which heats the fluid flowing through it.

[0036] In related technologies, to ensure the sealing of the flow channels and the reliability of the connections, heating devices and other pipelines in the thermal management system (hereinafter referred to as external pipelines) are usually connected by screws or flanges. Although screw connections are simple in structure and detachable, their limited sealing capacity of the threads themselves, the need for multiple torque operations, and the high requirements for axial alignment make it difficult to achieve quick and reliable connections in high-pressure / high-temperature fluid systems. Flange connections offer superior sealing performance, but the assembly process involves a large number of bolts, strict flange face parallelism and gasket processing, and step-by-step tightening and verification, resulting in a long overall installation time and high requirements for the technical skills and teamwork of the construction personnel.

[0037] To improve assembly efficiency, the industry ideally requires heating devices to be connected to external pipelines via quick-connect fittings, such as a male connector for the heating device and a female connector for the external pipeline. However, in vehicle thermal management systems, the structural components that form fluid channels are typically manufactured using extrusion molding. This process results in thin walls at the flow channel interfaces, making it difficult to form the snap-fit ​​structure required for quick-connect fittings and hindering rapid assembly with pipelines.

[0038] Based on this, this application proposes a heating device that improves the connection efficiency between the heating device and other pipelines of the thermal management system, while reducing processing difficulty or maintenance costs.

[0039] Please see Figures 2 to 6 In one embodiment of this application, the heating device 20 includes a device body 21 and a plurality of adapters 27. The device body 21 has a fluid channel 211 and a plurality of flow channel interfaces 212 communicating with the fluid channel 211. The device body 21 is provided with a plurality of interface portions 213, each interface portion 213 being provided with a flow channel interface 212. Each adapter 27 is correspondingly sleeved on an interface portion 213. The adapter 27 is used to connect the interface portion 213 to a lead-out member 28 on an external pipeline. Alternatively, the heating device 20 may also include a lead-out member 28. The adapter 27 and the lead-out member 28 are arranged in a one-to-one correspondence. The lead-out member 28 has a connecting channel 280, a first end 281 and a second end 282 located at both ends of the connecting channel 280. The first end 281 is snapped into the adapter 27, and the second end 282 is configured to be suitable for connecting to an external pipeline so that the fluid channel 211 and the external pipeline are connected.

[0040] The heating device 20 includes a device body 21, which has a fluid channel 211 and a flow channel interface 212 communicating with the fluid channel 211. The flow channel interface 212 is typically a liquid inlet interface 212a and a liquid outlet interface 212b. The liquid inlet end of the fluid channel 211 is connected to the liquid inlet interface 212a, and the liquid outlet end is connected to the liquid outlet interface 212b. The liquid inlet interface 212a is used for the heat exchange medium to flow into the fluid channel 211, and the liquid outlet interface 212b is used for the heat exchange medium to flow out of the fluid channel 211. An interface portion 213 refers to a structural part on the heating device 20 body specifically designed for providing the flow channel interface 212. There can be multiple interface portions 213; for example, there may be two, three, four, or more interface portions 213. In one example, the flow channel interface 212 includes an inlet interface 212a and an outlet interface 212b, and there are two interface portions 213, one of which is configured as an inlet interface portion and the other of which is configured as an outlet interface portion.

[0041] The function of the adapter 27 is to bridge the interface portion 213 and the lead-out member 28 of the main body 21 of the bridging device, enabling a mechanical connection between the two while maintaining a seal. The adapter 27 is fitted onto the interface portion 213. The adapter 27, the lead-out member 28, and the interface portion 213 can be individually and sealed together, or the lead-out member and the interface portion 213 can be sealed together. The connection relationship between the adapter 27 and the lead-out member 28, and between the adapter 27 and the interface portion 213, is not limited. The adapter 27 being fitted onto the interface portion 213 can be understood as having a partially annular or nearly annular structure. Alternatively, the adapter 27 may typically include a connecting cylinder 271, which is fitted onto the interface portion 213.

[0042] The lead-out member 28 has a connecting channel 280. It can be understood that the lead-out member 28 is a hollow part, and it also has two ports, each communicating with the connecting channel 280. That is, it can enter the connecting channel 280 through these ports. The extension direction of the connecting channel 280 can be straight or curved. The lead-out member 28 has a first end 281 and a second end 282 located at both ends of the connecting channel 280. In other words, the portion of the lead-out member 28 that constitutes the port of the connecting channel 280 is defined as the end of the lead-out member 28. For ease of description, one end is defined as the first end 281, and the other end is defined as the second end 282.

[0043] The first end 281 engages with the adapter 27. This engagement can be direct or via a snap-fit ​​component 30. Direct engagement means the first end 281 has a snap-fit ​​structure, and the adapter 27 has a structure adapted to this structure. For example, the first end 281 may have a slot or opening, and the adapter 27 may have a hook. Thus, the first end 281 and the adapter 27 are directly connected via this snap-fit ​​structure. Alternatively, the first end 281 and the adapter 27 can be engaged via a snap-fit ​​component 30. In other words, both the first end 281 and the adapter 27 have snap-fit ​​portions. When the snap-fit ​​member 30 snaps into both the first end 281 and the adapter 27, the first end 281 and the adapter 27 are snapped together. In one example, the snap-fit ​​part is configured as a latch, that is, the first end 281 and the adapter 27 are respectively provided with latches, and the snap-fit ​​member 30 can simultaneously snap into the latch provided on the first end 281 and the latch provided on the adapter 27, thereby realizing the snap-fit ​​between the first end 281 and the adapter 27. In another example, the snap-fit ​​part is configured as a latch 251, that is, the first end 281 and the adapter 27 are respectively provided with latches 251, and the snap-fit ​​member 30 is a ring-shaped member. The snap-fit ​​member 30 is fitted onto the latches 251 of the first end 281 and the adapter 27, thereby realizing the snap-fit ​​between the first end 281 and the adapter 27. Preferably, in order to ensure the stability of the connection between the adapter 27 and the lead-out member 28, the first end 281 is engaged with the adapter 27 by a snap-fit ​​member 30.

[0044] The second end 282 is configured to connect to an external pipeline, such that the fluid channel 211 of the heating device 20 is connected to the external pipeline via the connection channel 280 of the lead-out member 28, forming a circulating flow channel for the heating medium. Preferably, to further improve connection efficiency, the second end 282 can be designed as a quick-connect plug; for example, in one example, the outer wall of the second end 282 is configured as a upset head structure; in another example, the second end 282 is configured as a male connector for insertion into the female connector of the external pipeline; in yet another embodiment, the second end 282 is configured as a female connector for fitting over the male connector of the external pipeline.

[0045] In a vehicle's thermal management system, the heat transfer medium heated by the heating device 20 can be transported via a circulation channel to the parts of the vehicle that require heating. For example, when the temperature of a vehicle's battery is low, the rate of chemical reactions inside the battery slows down, leading to a decrease in the battery's charging and discharging efficiency and a decline in battery performance. Therefore, a circulation pipeline can be provided that connects to the fluid channel 211 of the heating device 20, so that water, oil, or other heat exchange media can be heated after entering the fluid channel 211 of the heating device 20, reaching the required temperature, and then transported to the battery via the circulation pipeline, thereby heating the battery. Of course, heating or cooling the battery is just one example. The heated heat transfer medium can also be transported to other locations in the vehicle, such as the engine and seats.

[0046] At the first end 281, the connection between the interface 213, the adapter 27, and the lead-out member 28 is typically a plug-in and snap-fit ​​connection. That is, the plug-in connection between the interface 213, the adapter 27, and the first end 281 can be as follows: the connecting sleeve 271 is fitted onto the interface 213, and the interface 213 and the connecting sleeve 271 are inserted into the first end 281 as a whole, that is, the interface 213, the connecting sleeve 271, and the first end 281 are sequentially fitted from the inside out; or the interface 213 is inserted into the first end 281, and the connecting sleeve 271 is fitted onto the outer wall of the connection between the interface 213 and the first end 281, that is, the interface 213, the first end 281, and the connecting sleeve 271 are sequentially fitted from the inside out.

[0047] In this embodiment, there are multiple adapters 27, that is, there may be two, three, four or more, and there are multiple leads 28, that is, there may be two, three, four or more; generally speaking, one interface part 213 is configured with one adapter 27 and one lead 28.

[0048] The connection between the adapter 27 and the device body 21 can be detachable or non-detachable. Detachable connections typically include keyed connections, pin connections, snap-fit ​​connections, quick-release components, etc. Non-detachable connections typically include welding, riveting, or interference fits; no specific limitations are made here. In some embodiments, the adapter 27 may also be integrally formed with part of the device body 21.

[0049] The technical solution of this application utilizes the cooperation of adapter 27 and lead-out part 28. Adapter 27 is fitted onto interface 213 and fixedly connected to the main body 21 of the device. Lead-out part 28 is connected to adapter 27 via a snap-fit ​​method, realizing a quick connection between interface 213 of the heating device 20 and external pipelines. Compared to traditional screw or flange connections, in this embodiment, both adapter 27 and lead-out part 28 are connected to the main body 21 of the device via a snap-fit ​​method. The structure is simple, requiring no additional tools, and operators can complete the assembly by hand, resulting in high assembly efficiency. Secondly, each interface 213 is independently configured with one adapter 27 and one lead-out part 28, forming a standardized modular unit. Because the interface 213 can have a uniform size and shape, there is no need to customize adapter 27 for heating devices 20 with different numbers of interface 213s, reducing processing difficulty. Adapter 27 and lead-out part 28 can be mass-produced, reducing production costs and material waste. In terms of maintenance, if a certain interface 213, adapter 27, or lead-out part 28 is damaged, only the corresponding module needs to be replaced, without replacing the entire main body 21 of the device, thus significantly reducing maintenance costs and downtime. In addition, the modular design facilitates upgrades or adaptation to different specifications of external pipelines, enhancing the flexibility and versatility of the device.

[0050] Since the adapter 27 and the lead-out member 28 are detachably connected, and the lead-out member 28 may be part of an external pipeline; based on this, in some embodiments, the heating device 20 includes a device body 21 and a plurality of adapters 27. The device body 21 has a fluid channel 211 and a plurality of flow channel interfaces 212 communicating with the fluid channel 211. The device body 21 is provided with a plurality of interface portions 213, each interface portion 213 being provided with a flow channel interface 212. Each adapter 27 is correspondingly sleeved on an interface portion 213, and the adapter 27 is connected to the device body 21. The adapter 27 is configured to snap into the lead-out member 28 of the external pipeline.

[0051] In some embodiments, please refer to Figure 3 and Figure 4 The adapter 27 is snapped into the main body 21 of the device.

[0052] The adapter 27 and the device body 21 can be connected via two methods: direct connection and indirect connection. In the direct connection method, the first engaging portion 273b on the adapter 27 directly engages with the second engaging portion 251a on the device body 21, forming a stable connection. For example, the first engaging portion 273b (e.g., a slot) on the adapter 27 directly engages with the second engaging portion 251a (e.g., a buckle) on the device body 21, forming a stable connection. In the indirect connection method, the first engaging portion 273b on the adapter 27 engages with the second engaging portion 251a on the device body 21 through an intermediate component or connector. The intermediate component can be a ring spring or a U-shaped buckle, etc. In this embodiment, the adapter 27 and the device body 21 are connected via a snap-fit ​​installation method, which improves the connection efficiency.

[0053] In some embodiments, please refer to Figure 3 and Figure 4 One of the interface portion 213 and the adapter 27 is provided with a recess 214 and the other is provided with a protrusion 215. The recess 214 is engaged with the protrusion 215 to at least constitute an axial z-limit of the adapter 27 in the interface portion 213.

[0054] One of the interface portion 213 and the adapter 27 is provided with a recess 214, and the other is provided with a protrusion 215. The recess 214 and the protrusion 215 are mutually restrictive and engaged. In other words, at least one pair of mutually engaging protrusions 215 and recesses 214 are provided between the interface portion 213 and the adapter 27. That is, the protrusions 215 and recesses 214 can be one pair or multiple pairs. Among them, the interface portion 213 may be provided with one or more recesses 214, and the adapter 27 may be provided with one or more recesses 214. The connector 213 may have one or more protrusions 215, and the adapter 27 may have one or more recesses 214. Alternatively, the interface 213 may have both protrusions 215 and recesses 214, and the adapter 27 may also have both protrusions 215 and recesses 214. The protrusions 215 on the interface 213 may engage with the recesses 214 on the adapter 27, and the recesses 214 on the interface 213 may engage with the protrusions 215 on the adapter 27. Taking the adapter 27 as an example with multiple protrusions 215, in one example, the multiple protrusions 215 may be arranged sequentially along the circumferential direction w of the connecting cylinder 271. In another example, the multiple protrusions 215 may all be convex rings, which extend along the circumferential direction w of the connecting cylinder 271. The multiple protrusions 215 may be arranged at intervals along the axial direction z of the connecting cylinder 271, and a recess 214 may be defined between adjacent protrusions 215. Thus, after the connector is fitted onto the interface 213, the protrusion 215 and the recess 214 between the interface 213 and the adapter 27 cooperate with each other to form an axial z-limit for the adapter 27 in the interface 213, that is, to restrict the axial z-movement of the adapter 27 in the interface 213, thereby realizing the connection between the adapter 27 and the interface 213.

[0055] It can be understood that the axial direction z of the interface portion 213 can be understood as the extension direction of the fluid channel 211 within the interface portion 213; that is, on the cross-sectional view of the interface portion 213, the direction perpendicular to the cross-section is the axial direction z, and the direction extending along the outer wall of the interface portion 213 is the circumferential direction w.

[0056] In this embodiment, after the adapter 27 is fitted onto the interface portion 213 of the device body 21, the adapter 27 typically has two degrees of freedom: rotation and movement along the axial direction z of the interface portion 213. Furthermore, the interface portion 213 and the adapter 27 are connected by at least one pair of mutually cooperating protrusions 215 and recesses 214, thereby restricting the axial movement z of the adapter 27 in the interface portion 213. In this way, the limiting of the adapter 27 is completed, and the limiting cooperation of the recesses 214 and the protrusions 215 is achieved. The structure is simple and does not occupy additional space.

[0057] In some embodiments, please refer to Figure 6 and Figure 7 The adapter 27 includes a connecting cylinder 271 and a claw 272 disposed on the connecting cylinder 271. The connecting cylinder 271 is sleeved on the interface portion 213. The claw 272 is provided with a recess 214 or a protrusion 215.

[0058] The connecting cylinder 271 is a hollow structure that forms the main body of the adapter 27. The connecting cylinder 271 is fitted onto the interface portion 213. At least one end of the claw 272 is a free end, i.e., it has a cantilever structure. The claw 272 has a certain elasticity and is arranged on the inner surface of the connecting cylinder 271. Thus, when the claw 272 of the adapter 27 is inserted into the interface portion 213 of the device body 21, the concave portion 214 or convex portion 215 on the claw 272 corresponds to the convex portion 215 or concave portion 214 on the interface portion 213 for limiting engagement, so that the adapter 27 can form a firm engagement with the interface portion 213.

[0059] In this embodiment, the design of the claws 272 on the adapter 27 makes the connection process simple and quick. Simply insert the adapter 27 into the interface 213 and push it gently; the claws 272 will automatically engage with the interface 213, forming a secure connection. No complicated tools or additional fixing devices are required; installation can be completed with simple manual operation, improving construction efficiency.

[0060] In some embodiments, please refer to Figure 6 and Figure 7 There are multiple claws 272, which are arranged at intervals along the circumference w of the connecting cylinder 271; each claw 272 is provided with a protrusion 215.

[0061] The number of jaws 272 is multiple, including two, three, four, six, eight, or more. These jaws 272 are arranged at intervals along the circumference w of the connecting cylinder 271. This distributes the total locking force across multiple connection points. Each jaw 272 must withstand the entire separation force, requiring extremely high strength and reliability; failure of a single jaw will result in the failure of the entire connection. The shared load-bearing capacity of the multiple jaws 272 significantly improves the safety margin and reliability of the connection.

[0062] This embodiment optimizes the locking force from a single point to a multi-point load by employing multiple circumferentially spaced claws 272, resulting in a synergistic enhancement effect. This significantly improves the mechanical strength, vibration resistance, and reliability of the connection, effectively preventing loosening and leakage. Secondly, the multi-point elastic clamping achieves automatic centering of the connected components, compensating for manufacturing and assembly tolerances, ensuring uniform pressing of the sealing surface, and greatly improving the reliability of the seal. Furthermore, while maintaining the advantages of rapid clamping operation, the reasonable distribution of force reduces the performance requirements of individual parts.

[0063] In some embodiments, please refer to Figure 4 , Figures 6 to 9 The connecting cylinder 271 has a first end and a second end that are opposite each other along the axial direction z. The connecting cylinder 271 has an opening 271a that extends through both sides of its thickness. The claw 272 is disposed in the opening 271a and is integrally formed with the connecting cylinder 271. The outer peripheral wall of the interface portion 213 has a recess 214 and the claw 272 has a protrusion 215. The connecting cylinder 271 is sleeved on the periphery of the interface portion 213 from the first end. The protrusion 215 is inserted into the recess 214 and abuts against the outer wall of the interface portion 213 to realize the axial z-limiting of the adapter 27 in the interface portion 213.

[0064] The connecting cylinder 271 has a first end and a second end, respectively, and has an opening 271a extending through its thickness. The engagement of the claw 272 with the opening 271a achieves a stable connection with the interface portion 213. The cooperation between the claw 272 and the opening 271a enhances the stability of the connection, preventing loosening due to vibration or external forces during use. The recess 214 on the outer peripheral wall of the interface portion 213 and the protrusion 215 on the claw 272 cooperate, allowing the connecting cylinder 271 to be sleeved around the interface portion 213 and engaged with the recess 214, creating an effective axial z-limiting effect. In this way, the adapter 27 is accurately positioned in the axial z-direction of the interface portion 213, preventing displacement or detachment of the connection due to force during operation.

[0065] In some embodiments, please refer to Figure 4The interface portion 213 includes a first interface segment 2131 and a second interface segment 2132 connected together. The flow channel interface 212 communicates with the first interface segment 2131. The outer diameter of the first interface segment 2131 is smaller than the outer diameter of the second interface segment 2132. The outer wall of the first interface segment 2131 is provided with a raised portion 2131a. A recess 214 is defined between the raised portion 2131a and the outer wall of the second interface segment 2132. The raised portion 2131a abuts against the protrusion 215 on the adapter 27.

[0066] The interface portion 213 includes a first interface segment 2131 and a second interface segment 2132 connected together. The outer diameter of the first interface segment 2131 is smaller than the outer diameter of the second interface segment 2132. Thus, the end face of the second interface segment 2132 serves as a natural "step" or "stop surface". The outer wall of the first interface segment 2131 is provided with a raised portion 2131a. Thus, a recess 214 is defined between the end face of the second interface segment 2132 and the raised portion 2131a. The adapter 27 is sleeved on the interface portion 213. The claws 272 on the adapter 27 engage with the recess 214 and abut against the raised portion 2131a, thereby limiting the adapter 27 on the interface portion 213.

[0067] In this embodiment, the raised portion 2131a and the end face of the second interface segment 2132 define the recess 214, forming a reliable axial z-positioning reference and guide structure, which makes the assembly of the adapter 27 and the interface portion 213 quick and accurate. Secondly, the claw 272 can achieve tight contact after locking, effectively bearing the axial z-force, avoiding the movement of the adapter 27, and greatly improving the rigidity and reliability of the connection. Thus, the convenience of quick assembly and disassembly and the long-term reliability of the connection seal are taken into account.

[0068] In some embodiments, the raised portion 2131a is arranged in a ring shape and extends along the circumferential direction w of the interface portion 213.

[0069] In this embodiment, the macroscopic shape of the raised portion 2131a is a continuous annular structure, rather than discrete protrusions or bumps; it forms a complete annular track with no dead angles. The cross-sectional shape of the raised portion 2131a can be angular, trapezoidal, or arc-shaped, thus featuring a guide ramp, which facilitates the smooth sliding and insertion of the jaws 272 during engagement, reducing assembly resistance. Preferably, the cross-sectional shape of the raised portion 2131a is an arc-shaped section, which reduces stress concentration and, in conjunction with the specifically shaped jaws 272, achieves superior mechanical performance.

[0070] In this embodiment, the raised portion 2131a is continuous along the circumferential direction w of the interface portion 213. The adapter 27 can be engaged with the interface portion 213 at any rotation angle. In the confined space and complex pipeline layout of the automotive power compartment, it allows for greater flexibility in pipeline layout. During assembly, there is no need to painstakingly align the specific claw 272 position, which greatly improves the convenience and fault tolerance of assembly.

[0071] In other embodiments, there are multiple protrusions 2131a, which are arranged at intervals along the circumferential direction w of the interface portion 213, and each protrusion 2131a abuts against at least one claw 272.

[0072] In some embodiments, please refer to Figure 3 and Figure 4 The adapter 27 has an elastic portion 2712a, and the interface portion 213 applies an expansion force to the elastic portion 2712a in the radial direction; the first end 281 is sleeved on the adapter 27, and the lead-out portion 28 applies a compression force to the elastic portion 2712a in the radial direction.

[0073] The elastic part 2712a is a component that has a certain elastic deformation capability during installation and can be engaged with the interface part 213; it can be a long strip structure extending along the axial direction z of the connecting cylinder 271, or other shapes, such as a spring buckle or spring arm 2721. It is necessary that after the adapter 27 is fitted onto the interface part 213, the interface part 213 can apply an expansion force to the elastic part 2712a in the radial direction, and after the first end 281 is fitted onto the adapter 27, the lead-out member 28 can apply a tightening force to the elastic part 2712a in the radial direction.

[0074] The interface portion 213 applies a radial expansion force to the elastic portion 2712a. Generally speaking, this means that when the adapter 27 is subjected to an external force and tends to loosen along the axial direction z of the interface portion 213, the outer wall of the interface portion 213 will apply a radial expansion force to the elastic portion 2712a. The first end portion 281 is sleeved on the adapter 27, and the lead-out member 28 applies a radial tightening force to the elastic portion 2712a. That is, the elastic portion 2712a is constrained within the connection channel 280 of the lead-out member 28, and the elastic portion 2712a and the inner wall of the lead-out member 28 are in contact or at a very small distance.

[0075] When the adapter 27 is subjected to a loosening force and tends to loosen along the axial direction z of the interface portion 213, the outer wall of the interface portion 213 will apply a radial expansion force to the elastic portion 2712a, forcing the elastic portion 2712a to expand away from the axis of the interface portion 213. This expansion movement drives the elastic portion 2712a to displace towards the inner wall of the lead-out member 28 and tightly abut against the inner wall, forming an enhanced radial clamping force, thereby effectively preventing the connection between the lead-out member 28 and the adapter 27 from loosening. At the same time, since the elastic portion 2712a is constrained within the connection channel 280 of the lead-out member 28, the inner wall of the lead-out member 28 will apply a reverse radial contraction force to the elastic portion 2712a that intends to expand. The reverse radial contraction force effectively inhibits the outward expansion of the elastic portion 2712a, thereby strengthening the interlocking and locking between the adapter 27 and the interface portion 213, preventing the adapter 27 from loosening along the axial direction z of the interface portion 213. Thus, through the unique mechanical interaction between the interface 213, the adapter 27, and the lead-out part 28, a two-way cooperative interlocking structure is formed. This two-way cooperative interlocking structure improves the connection reliability between the heating device 20 and the external management and helps to reduce the risk of fluid leakage.

[0076] In this embodiment, the adapter 27 and the lead-out member 28 are used together. The adapter 27 is fitted onto the interface portion 213 and fixedly connected to the main body 21 of the device. The lead-out member 28 is connected to the adapter 27 by a snap-fit ​​method, realizing the quick connection between the interface portion 213 of the heating device 20 and the external pipeline. Secondly, the interface portion 213 applies an expansion force to the elastic portion 2712a in the radial direction, and the lead-out member 28 applies a contraction force to the elastic portion 2712a in the radial direction. At the interface portion 213, the adapter 27, and the lead-out member 28, a two-way cooperative interlocking structure is formed. This two-way cooperative interlocking structure improves the connection reliability between the heating device 20 and the external pipeline and helps to reduce the risk of fluid leakage.

[0077] In some embodiments, please refer to Figure 3 and Figure 4 The elastic part 2712a is configured as a spring arm 2721, which has a snap-fit ​​section 2723 and an anti-disengagement section 2722 arranged sequentially along the axial direction z of the adapter 27; the expansion force applied radially by the interface part 213 acts on the snap-fit ​​section 2723, and the contraction force applied radially by the lead-out member 28 acts on the anti-disengagement section 2722.

[0078] The snap-fit ​​section 2723 and the anti-detachment section 2722 are arranged along the axial direction z of the adapter 27. The snap-fit ​​section 2723 and the anti-detachment section 2722 can be directly connected or connected through a connecting section. In this embodiment, the expansion force and the contraction force act on different sections of the spring arm 2721 along the axial direction z. Thus, when the adapter 27 is subjected to an external force and has a tendency to loosen along the axial direction z of the interface portion 213, the external force will be converted into a radial expansion force on the snap-fit ​​section 2723 through the cooperation structure between the snap-fit ​​section 2723 and the interface portion 213. The radial expansion force is transmitted through the spring arm 2721, making the anti-detachment section 2722 press more tightly against the inner wall of the lead-out member 28; while the constraint reaction force of the inner wall of the lead-out member 28 on the anti-detachment section 2722 is fed back to the snap-fit ​​section 2723 through the spring arm 2721, inhibiting its further expansion and forming a closed-loop self-tightening mechanism.

[0079] This embodiment achieves specialization of the force-bearing point and optimization of the mechanical path by applying the expansion force and the contraction force to the locking section 2723 and the anti-detachment section 2722 of the spring arm 2721, respectively. This reduces stress concentration and makes the deformation and stress distribution of each section of the spring arm 2721 more reasonable, which helps to improve the fatigue life and resistance to permanent deformation of the spring arm 2721. Secondly, when the adapter 27 is loosened axially by an external force, the expansion force acting on the locking section 2723 causes the anti-detachment section 2722 to be pressed more tightly against the inner wall of the lead-out member 28 through the continuous structure of the spring arm 2721; while the constraint force of the lead-out member 28 on the anti-detachment section 2722 is further enhanced by the spring arm 2721 to lock the locking section 2723 and the interface 213. Through the bidirectional feedback mechanism transmitted by the spring arm 2721, the connection reliability of the interface 213, the adapter 27 and the lead-out member 28 is better.

[0080] In other embodiments, the expansion force and the contraction force acting on the spring arm 2721 can overlap, as long as the above-mentioned bidirectional cooperative interlocking structure can be achieved.

[0081] In some embodiments, please refer to Figure 4 Along the axial direction z of the adapter 27, the length of the anti-detachment section 2722 is not less than 1mm.

[0082] The portion of the spring arm 2721 extending into the lead-out member 28 is where the clamping force is applied. The length of the anti-detachment section 2722 is not less than 1 mm, meaning the length of the spring arm 2721 extending into the lead-out member 28 is not less than 1 mm. This ensures that the contact length between the spring arm 2721 and the inner wall of the lead-out member 28 along the axial direction z of the connecting cylinder 271 is not too short, guaranteeing a large contact area between the anti-detachment part and the inner wall of the lead-out member 28. This ensures a stable and reliable tight fit between the anti-detachment part and the inner wall of the lead-out member 28, further improving the assembly reliability of the lead-out member 28 and the adapter 27. Furthermore, the length of the anti-detachment part extending into the lead-out member 28 is not too short, preventing the anti-detachment part from detaching from the lead-out member 28 and failing in a vibrating environment. In the axial direction z of the connecting cylinder 271, the length of the anti-detachment part extending into the lead-out member 28 refers to the distance T between the end face of the anti-detachment part facing the second port of the connecting cylinder 271 and the end face of the insertion interface 281a of the lead-out member 28 in the axial direction z of the connecting cylinder 271. That is, T ≥ 1mm. For example, T can be 1mm, 2mm, 3mm, etc. The maximum length of the anti-detachment part extending into the lead-out member 28 can be adjusted according to the size of the insertion part 278 of the lead-out member 28, and is not specifically limited here.

[0083] In some embodiments, please refer to Figures 4 to 6 The adapter 27 includes a connecting cylinder 271 sleeved on the interface portion 213; a spring arm 2721 extending along the axial direction z of the connecting cylinder 271; one end of the spring arm 2721 near the snap-fit ​​section 2723 is connected to the connecting cylinder 271, and one end of the spring arm 2721 near the anti-detachment section 2722 is configured as a free end.

[0084] One end of the spring arm 2721 near its locking section 2723 is connected to the connecting cylinder 271, meaning this end is the fixed end. The other end of the spring arm 2721 near its anti-detachment section 2722 is the free end, meaning this end is not connected to the connecting cylinder 271. Thus, the spring arm 2721 is configured as a cantilever beam structure. According to the lever effect, when the interface 213 applies a radial expansion force to the locking section 2723, the entire spring arm 2721 moves radially about the fixed end as a fulcrum. The locking section 2723, as the "force application point," bears the radially outward thrust, and the anti-detachment section 2722 can accordingly generate an amplified radial displacement.

[0085] In this embodiment, the spring arm 2721 adopts a cantilever beam structure with a fixed end and a free end, forming a mechanical lever system; the small displacement of the locking section 2723 is transmitted through the spring arm 2721, and the force transmission efficiency is improved by utilizing the lever amplification effect, which can amplify the displacement of the anti-disengagement section 2722 into a larger displacement. This allows for a larger displacement to be achieved in the anti-disengagement section 2722 under limited force input, thereby improving the response speed and accuracy of the bidirectional cooperative interlocking structure.

[0086] To prevent leakage caused by excessive rotation of the adapter 27 along the circumferential direction w of the interface portion 213, please refer to some embodiments. Figures 5 to 8 The adapter 27 includes a connecting cylinder 271 and a flange portion 276 provided on the connecting cylinder 271. The connecting cylinder 271 is sleeved on the interface portion 213. The flange portion 276 is limitedly connected to the device body 21 to form a circumferential w-limiting of the adapter 27 in the interface portion 213.

[0087] Each connecting cylinder 271 of the adapter 27 is provided with a flange portion 276. This flange portion 276 can be a flange or lug structure extending radially outward from the root or middle of the connecting cylinder 271. The flange portion 276 forms a direct limiting connection with the device body 21. In one example, a limiting groove matching the shape of the flange portion 276 is provided on the device body 21 around the root or adjacent area of ​​the interface portion 213. During installation, the connecting cylinder 271 is fitted into the interface portion 213, while the flange portion 276 slides into or engages with the limiting groove in a specific orientation. The inner wall of the groove fits tightly against the side wall of the flange portion 276, effectively preventing circumferential rotation of the adapter 27. In another example, a flat or positioning protrusion limiting surface is provided on the device body 21 in the area between adjacent interface portions 213. The side edge of the flange 276 abuts against the limiting surface to form a surface contact, thereby achieving circumferential w-direction limiting.

[0088] In this embodiment, the connecting cylinder 271 of the adapter 27 is provided with a flange 276, which is connected to the main body 21 of the device for limiting the adapter 27 in the circumferential w direction of the interface 213. This can effectively prevent the adapter 27 from rotating excessively in the circumferential w direction of the interface 213, and avoid unstable connection or leakage caused by rotation.

[0089] Please continue reading. Figures 5 to 8 In some embodiments, one of the device body 21 and the flange portion 276 is provided with a limiting hole 277, and the other is provided with a limiting pin 216. The limiting pin 216 passes through the limiting hole 277 to at least constitute a circumferential w-direction limit for the adapter 27. Alternatively, the limiting hole 277 may be provided on the device body 21 and the limiting pin 216 on the flange portion 276, or the limiting pin 216 may be provided on the device body 21 and the limiting hole 277 on the flange portion 276. The limiting pin 216 and the limiting hole 277 are either clearance fit or interference fit. A clearance fit only constitutes a circumferential w-direction limit for the adapter 27; an interference fit constitutes a limit for the adapter 27 in the axial z, radial, and circumferential w directions. A clearance fit between the limiting pin 216 and the limiting hole 277 can improve the installation efficiency between the adapter 27 and the device body 21.

[0090] To prevent leakage caused by excessive rotation of the adapter 27 along the circumferential direction w of the interface portion 213, please refer to some embodiments. Figure 9 The adapter 27 includes a connecting cylinder 271 and a flange portion 276 provided on the connecting cylinder 271. The connecting cylinder 271 is sleeved on the interface portion 213. The flange portions 276 of adjacent adapters 27 are mutually limited to form a circumferential w-limiting of the adapter 27 in the interface portion 213.

[0091] Each connecting cylinder 271 has at least one flange 276 on its outer wall. This flange 276 extends radially outward from the outer wall of the connecting cylinder 271, and its cross-sectional shape can be polygonal, fan-shaped, or a protrusion with a specific profile. When the adapter 27 is installed onto the device body 21, each connecting cylinder 271 is fitted onto its corresponding interface 213. At this time, the flanges 276 on adjacent connecting cylinders 271 will approach each other or even contact each other, forming a limiting fit. Specifically, the side of one flange 276 abuts against the side of the adjacent flange 276 or has only a small gap, effectively limiting the circumferential rotation (w) of each connecting cylinder 271 (and thus the entire adapter 27) relative to the device body 21. Furthermore, all the flanges 276 together form a mutually constraining mesh-like stable structure, enhancing the rigidity and integrity of the entire adapter 27 on the device body 21, enabling it to better resist vibrations from external pipelines or accidental lateral forces.

[0092] Please continue reading. Figure 9 In some embodiments, of two adjacent adapters 27, one adapter 27 is provided with a plug portion 278, and the other adapter 27 is provided with a slot 279 for the plug portion 278 to be plugged into.

[0093] A plug-in portion 278 is provided on the side of the first adapter 27. This plug-in portion 278 can be a tenon, key, or guide post extending from the side of its flange portion 276. Correspondingly, a slot 279 is provided on the side of the adjacent second adapter 27, the shape of which precisely complements the plug-in portion 278. During installation, while each adapter 27 is fitted onto the corresponding interface portion 213 of the device body 21, the operator must precisely insert the plug-in portion 278 of the first adapter 27 into the slot 279 of the second adapter 27. This insertion action creates a mechanical limit between the multiple adapters 27. In this embodiment, the cooperation between the plug-in portion 278 and the slot 279 provides circumferential positioning for adjacent adapters 27, thus preventing excessive rotation of the adapter 27 along the circumferential direction of the interface portion 213, which could lead to leakage.

[0094] In some embodiments, please refer to Figure 3 and Figure 4 , Figures 10 to 12 The first end 281 is provided with an insertion interface 281a, which communicates with the connecting channel 280; the connecting tube 271 and the interface part 213 are inserted into the connecting channel 280 through the insertion interface 281a, and the interface part 213 is sealed to the inner wall of the connecting channel 280.

[0095] The insertion interface 281a, also known as the connection channel 280, is the port of the first end 281. The connecting tube 271 and the interface portion 213 are inserted into the connection channel 280 through the insertion interface 281a. That is, in this embodiment, the connecting tube 271 is sleeved on the interface portion 213, and the interface portion 213 and the connecting tube 271 are inserted into the first end 281 as a whole. In other words, the interface portion 213, the connecting tube 271, and the first end 281 are sequentially sleeved from the inside to the outside. The interface portion 213 is sealed to the inner wall of the connection channel 280. This sealing connection can be achieved by an interference fit between the outer wall of the interface portion 213 and the inner wall of the connection channel 280, or by a sealing element 29 between the outer wall of the interface portion 213 and the inner wall of the connection channel 280.

[0096] In this embodiment, the interface portion 213 and the connecting cylinder 271 are pre-assembled. When the sub-components of the interface portion 213 and the connecting cylinder 271 are inserted into the first end 281, the inner wall of the connecting channel 280 provides circumferential wrapping and support for the interface portion 213, forming a "shroud" effect, which enhances the ability to resist lateral forces and vibrations, and makes the overall structure more stable.

[0097] In some embodiments, please refer to Figure 3 and Figure 4 , Figures 10 to 12 The connecting channel 280 includes a first channel 280a and a second channel 280b connected in sequence. The insertion interface 281a is connected to the first channel 280a. The cross-sectional area of ​​the first channel 280a is larger than that of the second channel 280b. The adapter 27 is inserted into the first channel 280a by the insertion interface 281a, and the interface part 213 is inserted into the second channel 280b by the insertion interface 281a. The interface part 213 is sealed and inserted into the inner wall of the second channel 280b.

[0098] The connecting channel 280 includes a first channel 280a and a second channel 280b connected in sequence. The cross-sectional area of ​​the first channel 280a is larger than that of the second channel 280b. The cross-sectional area of ​​the connecting channel 280 decreases along the direction from the first channel 280a to the second channel 280b; that is, the lead-out member 28 has a stepped or tapered tapered structure. When the cross-sectional shape of the connecting channel 280 is circular, that is, the inner diameter of the first channel 280a is larger than the inner diameter of the second channel 280b.

[0099] The interface portion 213 self-inserts into the second channel 280b via the interface 281a. The interface portion 213 ultimately reaches and remains within the smaller second channel 280b. That is, the inner wall of the second channel 280b is specifically designed to form a sealing fit with the outer wall of the interface portion 213. In some examples, this can be an interference fit, thereby achieving dimensional matching, improving the sealing effect, and reducing the possibility of leakage. The connecting cylinder 271 self-inserts into the first channel 280a via the interface 281a. Because the first channel 280a has a larger diameter, it can easily accommodate the connecting cylinder 271 and the interface portion 213. The latch 272 is located outside the connecting channel 280, so that the locking function of the latch 272 is completely unrestricted by the connecting channel 280. The latch 272 can freely and radially elastically deform in the external space of the connecting channel 280 to achieve engagement and disengagement without being stuck or interfering inside the channel.

[0100] In this embodiment, the connecting channel 280 is segmented, and the interface 213 is sealed and inserted into the inner wall of the second channel 280b, which can improve the sealing effect of the interface 213 and the lead-out member 28. Secondly, the interface 213 is in the second channel 280b and the connecting cylinder 271 is in the first channel 280a. Both can fit tightly with the inner wall of the connecting channel 280, forming a multi-layer, large-area contact and support, which can effectively resist the bending stress caused by fluid pressure fluctuations and external vibrations, and help improve the stability of the connection.

[0101] In some embodiments, please refer to Figure 3 The heating device 20 also includes a sealing member 29 sleeved on the interface portion 213; the sealing member 29 is located between the interface portion 213 and the inner wall of the first channel 280a to seal the gap between the interface portion 213 and the inner wall of the first channel 280a.

[0102] The seal 29 is a component used to fill, seal, or prevent the leakage of liquids, gases, or solids, and is typically made of rubber, polyurethane, or other elastic materials. In this example, the seal 29 is arranged in a ring shape; that is, the seal 29 is a sealing ring or sealing ring. When the lead-out member 28 and the interface portion 213 are assembled in place, the seal 29 can be radially compressed to form a radial seal, or the sealing ring can be axially compressed to form an axial seal.

[0103] In this embodiment, the sealing element 29 is used to achieve a sealed connection between the interface 213 and the lead-out element 28, which can reduce the leakage of liquid from the mating gap between the interface 213 and the lead-out element 28. Secondly, combined with the previous embodiment, the interface 213 is sealed and inserted into the inner wall of the second channel 280b, which is equivalent to setting two sealing structures, which can improve the sealing reliability of the connection between the interface 213 and the lead-out element 28 and reduce the risk of leakage.

[0104] In some embodiments, please refer to Figure 3 , Figures 10 to 12 The lead-out member 28 is provided with a first bayonet 281b that penetrates its wall thickness, and the adapter 27 is provided with a second bayonet 271b; the heating device also includes a snap-fit ​​member 30, which snaps into the first bayonet 281b and the second bayonet 271b to lock the adapter 27 and the lead-out member 28.

[0105] The first end 281 is provided with a first bayonet 281b, which is usually a through-hole that penetrates the wall thickness of the lead-out member 28. The first bayonet 281b extends circumferentially along the first end 281. The connecting cylinder 271 is provided with a second bayonet 271b, which can be a through-hole that penetrates the wall of the connecting cylinder 271 or a blind opening. If the second bayonet 271b is a blind opening, it can be understood as a groove provided on the outer wall of the connecting cylinder 271. In embodiments where the second bayonet 271b is a blind opening, it can be set as an annular groove. In this case, the first bayonet 281b and the second bayonet 271b do not need to be radially aligned, reducing the difficulty of docking the first end 281 and the connecting cylinder 271.

[0106] The second bayonet 271b is used to cooperate with the first bayonet 281b of the first end 281. The design of the second bayonet 271b usually has a shape and size that matches the first bayonet 281b, so that after the two are aligned, the snap-fit ​​30 can be inserted from the first bayonet 281b into the second bayonet 271b. The snap-fit ​​30 plays a role in strengthening the connection, so that the first end 281 and the connecting cylinder 271 can be firmly connected during the long-term connection state and are not easy to separate, thereby improving the reliability of the first end 281 and the connecting cylinder 271 in the connection state.

[0107] In this embodiment, through the cooperation of the first bayonet 281b, the second bayonet 271b and the snap-fit ​​30, the operator only needs to align the snap-fit ​​30 with the first bayonet 281b and the second bayonet 271b to complete the reinforced connection between the adapter 27 and the guide without performing complicated operation steps, and also improves the stable connection between the first end 281 and the connecting cylinder 271.

[0108] In some embodiments, please refer to Figure 3 , Figures 10 to 12The lead-out member 28 is provided with two opposing first slots 281b, which extend along the circumferential direction w of the lead-out member 28. The connecting tube 271 is provided with two opposing second slots 271b, which extend along the circumferential direction w of the connecting tube 271. The latching member 30 includes two opposing latching arms 30a and an operating arm 30b connected to one end of the two latching arms 30a. The operating arm 30b is located on the outside of the lead-out member 28. Each latching arm 30a can be latched into one first slot 281b and one second slot 271b.

[0109] The first end 281 is provided with two opposing first latches 281b, which extend along the circumferential direction w of the first end 281. The two first latches 281b are spaced apart along the circumferential direction w of the first end 281 to give the portion of the first end 281 at the first latches 281b a certain structural strength. Two locking arms 30a are respectively connected to the two ends of the operating arm 30b and are arranged opposite to each other. The main function of the locking arms 30a is to engage with the first latches 281b on the first end 281 and the second latches 271b on the connecting cylinder 271 to improve the stable connection between the first end 281 and the connecting cylinder 271. The operating arm 30b is located on the outside of the first end 281. A certain amount of space is usually reserved between the operating arm 30b and the outer wall of the first end 281 to provide sufficient operating space for the user to pinch or pull. Through the operating arm 30b, the user can easily complete the snapping or releasing of the snap-fit ​​30 in the first snap-fit ​​281b and the second snap-fit ​​271b.

[0110] The working process of the snap-fit ​​component 30 involves applying force to the operating arm 30b, causing the snap-fit ​​arm 30a to be pressed or pushed, aligning and engaging with the first latch 281b, and then with the second latch 271b. This snap-fit ​​method is both simple and efficient. The operator only needs to easily push or pull the operating arm 30b for the snap-fit ​​arm 30a to enter the first latch 281b and lock the connection. When disassembly is required, the locking connection between the snap-fit ​​arm 30a and the first latch 281b can be easily released by reversing the operation, thereby separating the converter and the lead-out component 28. This operation is simple and quick, facilitating maintenance or replacement.

[0111] In this embodiment, the reinforced fixing structure of the first end 281 and the connecting cylinder 271 has the advantages of simple structure, stable connection, easy and quick operation, and convenient maintenance or replacement.

[0112] In some embodiments, please refer to Figure 3 , Figures 10 to 12Each of the two locking arms 30a has a holding part 30c at the end away from the operating arm 30b. After the locking arm 30a is locked into a first locking slot 281b and a second locking slot 271b, the holding part 30c is held to the outer wall of the first end 281.

[0113] When the retaining part 30c engages with the outer wall of the first end 281, it effectively secures the latching arm 30a within the first latch 281b and the second latch 271b. The shape and size of the retaining part 30c allow it to lock during the latching process, ensuring that the engagement between the latching arm 30a and the first latch 281b and the second latch 271b is not easily broken by external forces. During the installation of the latching component 30, the operating arm 30b is pushed or pulled, causing the latching arm 30a to gradually enter the first latch 281b and then the second latch 271b. As the latching arm 30a engages with the first latch 281b and the second latch 271b, the retaining part 30c also gradually and tightly engages with the outer wall of the first end 281, achieving a secure lock on the latching arm 30a.

[0114] This embodiment enhances the stability of the engagement between the snap-fit ​​member 30 and the first end 281 by providing a buckling part 30c at the end of the snap-fit ​​arm 30a away from the operating arm 30b, and further improves the connection reliability of the first end 281 and the connecting cylinder 271 in the connected state.

[0115] In some embodiments, please refer to Figure 6 , Figures 10 to 12 The outer wall of the connecting cylinder 271 is provided with a limiting rib 275, which extends along the axial direction z of the connecting cylinder 271. The inner wall of the first end 281 is provided with a limiting groove 281c for the limiting rib 275 to be inserted.

[0116] The limiting rib 275 is a prominent guiding and positioning feature. Its design, extending axially along the z-axis, means it continuously guides and constrains the connection throughout the insertion of the connecting cylinder 271 into the first end 281. The limiting rib 275 can be integrally formed with the connecting cylinder 271 or a separate component. The limiting groove 281c is a mating part of the limiting rib 275, acting as a predefined "track." Without a limiting structure, the angle of the connecting cylinder 271 must be manually adjusted while inserting it into the first end 281, without visual inspection, to ensure that the second latch 271b on it is precisely aligned with the first latch 281b on the first end 281, facilitating the subsequent insertion of the snap-fit ​​component 30. This process is time-consuming, relies heavily on manual feel, and is prone to errors.

[0117] This embodiment utilizes a limiting structure formed by the limiting rib 275 and the limiting groove 281c. Through a simple "keyway" mating principle, it automatically completes circumferential w-positioning during insertion, allowing the first bayonet 281b and the second bayonet 271b to be precisely aligned without manual intervention, greatly reducing assembly difficulty and time. Furthermore, the limiting structure provides axial z-guidance and forms an effective anti-rotation lock after positioning, enhancing the stability of the connection point.

[0118] In some embodiments, please refer to Figure 9 There are multiple limiting ribs 275, which are arranged at intervals along the circumferential direction w of the connecting cylinder 271.

[0119] Generally, a single limiting rib 275 can only constrain the degree of freedom in one direction, and the connecting cylinder 271 may still experience slight oscillations with it as a fulcrum. However, two or more limiting ribs 275 arranged at intervals (usually evenly distributed) along the circumferential direction w can collectively determine a central axis, thereby forcing the connecting cylinder 271 to maintain a very high degree of coaxiality with the first end 281 throughout the entire insertion process and after locking. Furthermore, multiple limiting ribs 275 collectively share and resist the torque attempting to rotate the connecting cylinder 271. Compared to a single-pin structure where all torque is borne by a single pin and a single groove, a multi-pin structure distributes the torque across multiple connection points, significantly reducing the stress on each pin-groove mating surface.

[0120] Furthermore, the optimal number of locating ribs 275 arranged opposite each other is the most effective solution, achieving both centering and torsional resistance without excessively increasing manufacturing complexity. In highly demanding applications, three evenly distributed ribs can be used to achieve perfect centering and further enhance stability. The cross-section of the locating ribs 275 can be circular, rectangular, or trapezoidal. Rectangular or trapezoidal cross-sections, when combined with corresponding grooves, provide better torsional resistance and guidance. The inlet of the locating groove 281c is typically designed with a large chamfer or flared opening for easy guideway insertion.

[0121] In this embodiment, by setting multiple circumferentially w-spaced limiting ribs 275, single-point positioning is optimized into stable multi-point collaborative positioning. The evenly distributed guide points realize the precise automatic alignment and smooth assembly of the connecting cylinder 271 and the first end 281. Secondly, the multi-point rigid constraint greatly enhances the torsional rigidity and vibration stability of the connection, effectively preventing misalignment of the bayonet and loosening of the connection caused by long-term fretting wear.

[0122] In some embodiments, please refer to Figure 9 and Figure 12The limiting rib 275 is integrally formed with the connecting cylinder 271; between adjacent limiting ribs 275, there are claws 272 and second slots 271b, the claws 272 and the second slots 271b are arranged sequentially along the axial direction z of the connecting cylinder 271, and the second slot 271b is located at the end of the connecting cylinder 271 near the flow channel interface 212.

[0123] The limiting rib 275 and the connecting cylinder 271 are integrally molded, meaning that the limiting rib 275 and the connecting cylinder 271 are typically produced as a single unit through injection molding, die casting, or extrusion molding. This integral molding avoids stress concentration points, loosening, or detachment risks that may occur with separate connections (such as bonding or press fitting). The force transmission between the connecting cylinder 271 and the limiting rib 275 is continuous and complete, which improves the structural strength of the connecting cylinder 271.

[0124] Adjacent limiting ribs 275 are provided with claws 272 and second latches 271b. That is, within the circumferential w area divided by the rigid limiting ribs 275, features with different functions (elastic claws 272 and rigid latches) are arranged, realizing the ultimate utilization of the space on the outer surface of the connecting cylinder 271, resulting in an extremely compact structure. The axial z-arrangement separates the two functions of "quick engagement" (claws 272) and "final rigid locking" (second latches 271b) in physical space, corresponding to the assembly sequence logic. This ensures that the elastic deformation of the claws 272 will not interfere with the rigid fit of the second latches 271b. In addition, placing the second latches 271b at the end near the flow channel interface 212 forms the most efficient force flow path, directly converting the locking force into the clamping force on the sealing element 29, greatly improving the stability and reliability of the seal.

[0125] In some embodiments, please refer to Figures 1 to 3 , Figure 13 The main body 21 of the device includes a housing 25 and a heater 26. The housing 25 is provided with a receiving cavity 25a. The heater 26 is provided in the receiving cavity 25a. The heater 26 includes a plurality of heating elements 261 arranged side by side and a connecting portion 262 connecting the plurality of heating elements 261. Each heating element 261 is provided with a heating flow channel 211a. A portion of the heating element 261 passes through the housing 25 and protrudes from the housing 25 at one end. The portion of the heating element 261 protruding from the housing 25 is configured as an interface portion 213.

[0126] In this embodiment, by directly extending a portion of the heating element 261 of the heater 26 through the housing 25 and serving as the interface 213, a deep integration of the heat source and the flow channel interface 212 in terms of physical structure and function is achieved. This not only seamlessly integrates the heating flow channel 211a with the connection port, greatly reducing connecting parts and potential leakage points, and improving sealing reliability and system compactness, but also provides an ideal molding substrate 261a for the quick-connect structure through the excellent material of the heating element 261 itself. At the same time, the modular design of multiple side-by-side heating elements 261 endows the device with excellent heating efficiency, power scalability, and safety redundancy.

[0127] In some embodiments, please refer to Figures 1 to 3 , Figure 13 Each heating element 261 includes a base 261a and a heating part 261b. The base 261a is provided with a channel, and the heating part 261b is provided on the outer peripheral wall of the base 261a. The heating part 261b extends along the circumferential direction w of the base 261a so that the channel is configured as a heating flow channel 211a. The cross section of the base 261a along the extension direction perpendicular to the channel is a continuous and complete annular surface.

[0128] The fluid channel 211 can be entirely formed by the heating flow channel 211a of the base 261a in the heating element 261. In this case, an inlet for the heat exchange medium to flow into the heater 26 and an outlet for the heat exchange medium to flow out of the heater 26 can be provided in the base 261a. Alternatively, the heater 26 can also have an interface portion 213 on the base 261a, as described below. In this case, the heating flow channel 211a of the base 261a in the heating element 261 can constitute part of the fluid channel 211, and the inlet and outlet flow channels in the interface portion 213 can also constitute part of the fluid channel 211. Furthermore, the heater 26 includes at least two heating elements 261, meaning that the number of heating elements 261 can be two or more. When the number of heating elements 261 is at least two, the at least two heating elements 261 can be arranged in series, in parallel, or a mixture of partially series and partially parallel arrangements. Additionally, the base 261a in the heating element 261 can be a tubular structure. Furthermore, in the cross-section perpendicular to the extending direction of the heating flow channel 211a, the cross-section of the substrate 261a can be a continuous and complete annular cross-section, so that the substrate 261a can have a complete annular wall in the circumferential direction w. Thus, compared to using several parts to enclose and form the heating flow channel 211a in the circumferential direction w, the possibility of leakage at the joints due to vibration or collision during long-term use of the compressor 10 can be reduced. Additionally, the heating element 261b in the heating body 261 can be a thick film, or it can be an electromagnetic induction coil; this application does not limit the type of heating element 261b.

[0129] To increase the heating area of ​​the heating section 261b, reduce the volume of the heating element 261, and improve the ease of arrangement of the heating section 261b, in one example, the heating section 261b can be made of a thick film. The substrate 261a can be made of metal. When the heating section 261b uses a thick film heating method, a thick film is printed on the substrate 261a. At the same time, it also facilitates the efficient transfer of heat from the heating section 261b located outside the substrate 261a, thereby improving the heating efficiency of the heat exchange medium located in the heating channel 211a. Furthermore, the heating element 261b is disposed on the outer peripheral wall of the base 261a and extends along the circumferential direction w of the base 261a. That is, the heating element 261b can completely surround the outer periphery of the base 261a, or it can surround a portion of the outer periphery of the base 261a. For example, the heating element 261b continuously surrounds 3 / 4 of the outer peripheral wall of the base 261a; or, the heating element 261b is composed of a plurality of small heating elements, which are spaced apart along the outer periphery of the base 261a.

[0130] The heating element 261 in this application includes a base 261a and a heating section 261b. The heating section 261b is configured to extend circumferentially (w) along the base 261a. Compared to the cassette heater 26, where the heating section 261b is plate-shaped and located on one side of the flow channel for single-sided heating, the heating element 261 in this heater 26 can be designed to be smaller for the same heating area. This results in a more compact overall structure of the heater 26, reducing space occupation while meeting the required heating effect. Therefore, the compressor 10 in this solution, on the one hand, shortens the wiring path between the heater 26 and the electronic control device through integration; on the other hand, combined with the optimized compact design of the heater 26 itself, it can significantly reduce the size of the compressor 10, thereby improving the space utilization of the vehicle when applied in a vehicle. Furthermore, the cross-section of the substrate 261a along the extension direction perpendicular to the heating channel 211a is a continuous and complete annular surface. That is, the cross-section of the substrate 261a is a continuous and complete annular surface. The continuous annular surface is uninterrupted, crack-free, and spliced ​​in the circumferential direction w. The complete annular surface is closed as a whole and without any gaps. This makes the substrate 261a have a complete annular wall in its circumferential direction w, thus having good sealing performance. In other words, the heating element 261 has good sealing performance, and the heat exchange medium is not easy to leak when flowing through the heating channel 211a, thereby improving the sealing effect and reliability of the heating element 261.

[0131] This application also proposes a compressor integrated device 1, including a compressor 10, a heating device 20, and a controller. The heater 26 of the heating device 20 is connected to the compressor 10; the controller is electrically connected to both the compressor 10 and the heater 26. The specific structure of the heating device 20 is as described in the above embodiments. Since this compressor 10 uses all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0132] The compressor 10 proposed in this application can be used in vehicles as described below, or it can be used in equipment such as air conditioners. This application does not limit the type of equipment to which the compressor 10 is applied.

[0133] The compressor 10 is a power device that uses mechanical energy to do work on gas, converting the low-pressure gas it draws in into high-pressure gas. Depending on different working principles and structural designs, the compressor 10 can be classified into various types, such as scroll compressors, piston compressors, screw compressors, and rotary compressors. The compressor proposed in this application can be a scroll compressor, a piston compressor, or a screw compressor, etc., and is not limited thereto.

[0134] The heater 26 can be used to heat the liquid entering the fluid channel 211 for delivery to areas requiring heating. For example, in a vehicle battery, the rate of chemical reactions slows down at low temperatures, leading to reduced charging and discharging efficiency and decreased battery performance. Therefore, a circulation pipeline connected to the fluid channel 211 can be provided so that water, oil, or other heat exchange media entering the fluid channel 211 can be heated by the heater 26 to the required temperature before being delivered to the battery via the circulation pipeline, thus heating the battery. Of course, heating the battery is just one example; the heat exchange media heated by the heater 26 in this solution can also be delivered to other locations in the vehicle, such as the engine and seats.

[0135] The controller is used to control the operation of the compressor 10 and the heater 26, such as controlling the start and stop of the motor in the compressor 10 and adjusting its speed, and controlling the start and stop of the heater 26 and adjusting its heating power. The controller may include a circuit board and control chips mounted on that circuit board. The compressor 10 and heater 26 can be controlled by the same control chip. Alternatively, different control chips can be used to control the compressor 10 and heater 26 separately. In this case, the two control chips can be located on the same circuit board or on different circuit boards.

[0136] In this embodiment, the compressor 10 integrates the heater 26, the compressor 10, and the controller into one unit, resulting in higher overall integration, a more compact structure, and a smaller footprint. Integration shortens the wiring path for the electrical connection between the heater 26 and the controller. The adapter 27 and the lead-out piece 28 facilitate the connection of the heater 26 to external pipelines to form a closed circulation channel.

[0137] This can be understood as follows: the cross-section of the substrate 261a constituting the heating channel 211a along the extension direction perpendicular to the heating channel 211a is a continuous and complete annular surface. That is, the cross-section of the substrate 261a is a continuous and complete annular surface. The continuous annular surface is uninterrupted, crack-free, and spliced ​​in the circumferential direction w. The complete annular surface is closed as a whole and without any gaps. This makes the substrate 261a have a complete annular wall in its circumferential direction w and thus have good sealing performance. That is, the heating body 261 has good sealing performance, and the heat exchange medium is not easy to leak when flowing through the heating channel 211a, thereby improving the sealing effect and reliability of the heating body 261.

[0138] In the prior art, heaters 26 typically use at least two components joined together to form a heating channel 211a. This method is susceptible to cracks in the heating channel 211a due to vehicle vibration and collisions, which can lead to leakage of the heat exchange medium. However, in this application, the base 261a of the heater 26 itself forms the heating channel 211a, eliminating the need for multiple components to be joined together. This makes the heater 26 less prone to leakage and improves vehicle safety when used in vehicles.

[0139] This application also proposes a thermal management system, which includes a heating device 20. The specific structure of the heating device 20 can be referred to the above embodiments. Since this thermal management system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The heating device 20 can be set independently of the compressor 10 in the thermal management system, or it can be integrated with the compressor 10 to form the compressor 10.

[0140] This application also proposes a thermal management system, which includes a compressor 10. The specific structure of the compressor 10 can be referred to the above embodiments. Since this thermal management system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0141] This application also proposes a vehicle that includes a thermal management system. The specific structure of the thermal management system can be referred to the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0142] The above description is merely an exemplary embodiment of this application and does not limit the scope of protection of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A heating device, characterized in that, include: The device body has a fluid channel and multiple flow channel interfaces communicating with the fluid channel; The main body of the device is provided with multiple interface sections, and each interface section is provided with the flow channel interface; Multiple adapters, each of which is fitted onto one of the interface portions; The adapter is used to connect the interface to an outlet on an external pipeline, or the heating device further includes an outlet; the adapter and the outlet are provided in a one-to-one correspondence. The lead-out component has a connecting channel, a first end and a second end located at both ends of the connecting channel, the first end engaging with the adapter, and the second end being configured to connect to an external pipeline so that the fluid channel and the external pipeline are in communication.

2. The heating device as described in claim 1, characterized in that, The adapter is snapped into the main body of the device.

3. The heating device as described in claim 2, characterized in that, The interface portion and the adapter are provided with a recess and a protrusion, respectively. The recess is engaged with the protrusion to at least axially limit the adapter in the interface portion.

4. The heating device as described in claim 3, characterized in that, The adapter includes a connecting cylinder and a locking claw disposed on the connecting cylinder, and the connecting cylinder is sleeved on the interface portion; The claw has the recessed portion, or the claw has the protruding portion.

5. The heating device as described in claim 4, characterized in that, The connecting cylinder has a first end and a second end that are opposite each other along the axial direction. The connecting cylinder is provided with an opening that extends through both sides of its thickness. The pawl is disposed in the opening and is integrally formed with the connecting cylinder. The outer peripheral wall of the interface portion is provided with the recess, the claw is provided with the protrusion, the connecting cylinder is sleeved on the periphery of the interface portion from the first end, the protrusion is inserted into the recess and abuts against the outer wall of the interface portion to realize the axial positioning of the adapter in the interface portion.

6. The heating device as described in claim 5, characterized in that, The interface section includes a first interface segment and a second interface segment connected together. The flow channel interface is connected to the first interface segment, and the outer diameter of the first interface segment is smaller than the outer diameter of the second interface segment. The outer wall of the first interface segment is provided with a raised portion, and the raised portion and the outer wall of the second interface segment define the recess, and the raised portion abuts against the protrusion on the adapter.

7. The heating device as claimed in claim 1, characterized in that, The adapter has an elastic portion, and the interface portion applies an expansion force to the elastic portion in a radial direction; The first end is sleeved on the adapter, and the lead-out member applies a radial compression force to the elastic part.

8. The heating device as described in claim 7, characterized in that, The elastic part is configured as a spring arm, the spring arm having a snap-fit ​​section and an anti-disengagement section arranged sequentially along the axial direction of the adapter; The radially applied expansion force of the interface acts on the snap-fit ​​section, and the radially applied tightening force of the lead-out member acts on the anti-detachment section.

9. The heating device as described in claim 8, characterized in that, The spring arm has two ends that are arranged opposite each other along the axial direction of the adapter; The adapter includes a connecting cylinder sleeved on the interface portion, and one end of the spring arm near the anti-detachment section is connected to the connecting cylinder, with the end of the spring arm near the anti-detachment section being configured as a free end.

10. The heating device as claimed in claim 8, characterized in that, Along the axial direction of the adapter, the length of the anti-detachment section is not less than 1 mm.

11. The heating device as claimed in claim 1, characterized in that, The adapter includes a connecting cylinder and a flange portion disposed on the connecting cylinder, and the connecting cylinder is sleeved on the interface portion; The flange portion is limitedly connected to the main body of the device; and / or, the flange portions of adjacent adapters are limitedly fitted to form a circumferential limit of the adapter at the interface portion.

12. The heating device as claimed in claim 11, characterized in that, The flange is connected to the main body of the device for limiting; one of the main body of the device and the flange is provided with a limiting hole, and the other is provided with a limiting pin; the limiting pin passes through the limiting hole to at least constitute the circumferential limiting of the adapter.

13. The heating device as claimed in claim 11, characterized in that, The flange portions of adjacent adapters are mutually restrictive to form a circumferential restriction of the adapters at the interface portion; Of two adjacent adapters, one adapter has a plug-in part, and the other adapter has a slot for the plug-in part to be inserted into.

14. The heating device as claimed in claim 1, characterized in that, The first end is provided with a plug interface communicating with the connection channel; the adapter and the interface are inserted into the connection channel through the plug interface, and the interface is sealed and plugged into the inner wall of the connection channel.

15. The heating device as described in claim 14, characterized in that, The connection channel includes a first channel and a second channel connected in sequence, and the plug interface is connected to the first channel; The cross-sectional area of ​​the first channel is larger than that of the second channel; The adapter is inserted into the first channel through the plug-in interface, and the interface portion is inserted into the second channel through the plug-in interface, with the interface portion sealingly connected to the inner wall of the second channel.

16. The heating device as claimed in claim 15, characterized in that, The heating device further includes a sealing element sleeved on the interface portion; the sealing element is located between the interface portion and the inner wall of the first channel to seal the gap between the interface portion and the inner wall of the first channel.

17. The heating device as claimed in claim 1, characterized in that, The adapter is provided with a first latch, and the lead-out part is provided with a second latch; the heating device further includes a snap-fit ​​part, which snaps into the first latch and the second latch to lock the adapter and the lead-out part together.

18. The heating device as claimed in claim 17, characterized in that, The outer wall of the adapter is provided with a limiting rib, which extends along the axial direction of the adapter; the lead-out member is provided with a limiting groove on the inner wall of the first channel for the limiting rib to be inserted.

19. The heating device as claimed in claim 1, characterized in that, The flow channel interface includes a liquid inlet interface and a liquid outlet interface. There are two interface sections, one of which is configured as a liquid inlet interface section and the other of which is configured as a liquid outlet interface section.

20. The heating device as claimed in claim 1, characterized in that, The main body of the device includes: The housing has a receiving cavity; and A heater is disposed in the accommodating cavity; the heater includes a plurality of heating elements arranged side by side and a connecting portion connecting the plurality of heating elements; each heating element is provided with a heating flow channel, the heating flow channel constituting at least a portion of the fluid channel; a portion of the heating element passes through the housing and protrudes from the housing at one end, the portion of the heating element protruding from the housing being configured as the interface portion.

21. The heating device as claimed in claim 20, characterized in that, Each of the heating elements includes a base and a heating part. The base is provided with a channel, and the heating part is provided on the outer peripheral wall of the base. The heating part extends circumferentially along the base so that the channel is configured as a heating flow channel. The cross-section of the base along the extension direction perpendicular to the channel is a continuous and complete annular surface.

22. A compressor integrated device, characterized in that, include: compressor; The heating device according to any one of claims 1 to 21, wherein the heating device is disposed in the compressor; as well as The controller is electrically connected to both the compressor and the heating device.

23. A thermal management system, characterized in that, It includes the heating device as described in any one of claims 1 to 21 or the compressor integrated device as described in claim 22.

24. A vehicle, characterized in that, Includes the thermal management system as described in claim 23.

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