Heater, compressor, thermal management system and vehicle

Abstract

This utility model discloses a heater, a compressor, a thermal management system, and a vehicle, belonging to the field of heater technology. The heater includes a first heating tube, a second heating tube, and a connector. The first and second heating tubes extend vertically and are distributed horizontally. The connector is connected to the lower ends of the first and second heating tubes, forming a U-shaped flow channel. The distance between the first and second heating tubes is L, the average diameter of the first and second heating tubes is D, and the maximum vertical dimension of the flow channel within the connector is H, where 0.1 ≤ ≤ 3. The heater according to this utility model embodiment can optimize the flow performance of the heater and improve space utilization, facilitating its integration into the compressor.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, and in particular to a heater, compressor, thermal management system and vehicle. Background Technology

[0002] With the development of the new energy vehicle industry and the advancement of technology, the thermal management system of new energy vehicles is becoming increasingly complex. The thermal management system of related technologies usually includes a compressor and a heater. The heater usually includes a cavity and a heating structure. The heating structure is used to heat the heat exchange medium in the cavity. This type of heater has a complex structure, is heavy, bulky, and expensive. Utility Model Content

[0003] One objective of this invention is to provide a heater, compressor, thermal management system, and vehicle that can optimize the flow performance of the heater, improve space utilization, and facilitate the integration of the heater into the compressor.

[0004] A heater according to an embodiment of the present invention is used in a compressor. The heater includes: a first heating tube, a second heating tube, and a connector. The first heating tube and the second heating tube extend vertically and are distributed horizontally. The connector is connected to the lower ends of the first heating tube and the second heating tube, and the first heating tube, the connector, and the second heating tube are connected to form a U-shaped flow channel. The distance between the first heating tube and the second heating tube is L, the average diameter of the first heating tube and the diameter of the second heating tube is D, and the maximum vertical dimension of the flow channel in the connector is H, wherein 0.1 ≤ ≤3.

[0005] The heater according to the present invention can optimize the flow performance of the heater and improve space utilization, and facilitate the integration of the heater into the compressor.

[0006] In addition, the heater according to the above embodiments of the present invention may also have the following additional technical features: In some embodiments, 0.3≤ ≤2.

[0007] In some embodiments, the connector includes a guide surface that is vertically opposite to the lower end of the internal flow channel of the first heating tube and the lower end of the internal flow channel of the second heating tube, and the guide surface gradually bulges downward from both ends to the middle in the left-right direction.

[0008] In some embodiments, in the cross-section constructed by the axes of the first heating tube and the second heating tube, the radius of the arc defined by the two ends and the midpoint in the left-right direction of the guide surface is R, where 0.1 ≤ ≤1, α= .

[0009] In some embodiments, 0.3≤ ≤0.5; and / or, 0.2≤ ≤1.

[0010] In some embodiments, the connector includes a lower flange and a water box. The lower flange connects the lower ends of the first heating tube and the second heating tube. The water box and the lower flange are distributed and connected in the vertical direction. The water box includes a guide wall and a flange. The guide wall is opposite to the first heating tube and the second heating tube in the vertical direction. The guide surface is formed on the guide wall. The flange connects to the periphery of the guide wall and extends upward. The flange connects to the lower flange. The dimension of the flange in the vertical direction is h, where 0.1≤h / H≤1; 5mm≤H≤30mm; 0mm≤h≤30mm; 10mm≤R≤100mm.

[0011] In some embodiments, 10mm≤D≤50mm; 5mm≤L≤30mm.

[0012] The compressor according to an embodiment of the present invention includes: a housing assembly; a motor assembly and the aforementioned heater, wherein the motor assembly is disposed within the housing assembly; at least a portion of the heater is disposed within the housing assembly, and the heater and the motor assembly are distributed along the axis of the motor assembly.

[0013] According to an embodiment of the present invention, the thermal management system includes the aforementioned compressor.

[0014] According to an embodiment of the present invention, the vehicle includes the aforementioned thermal management system. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a compressor according to an embodiment of the present invention.

[0016] Figure 2 This is an exploded schematic diagram of a compressor according to one embodiment of the present invention.

[0017] Figure 3 This is a cross-sectional view of a heater according to an embodiment of the present invention.

[0018] Figure 4 This is a cross-sectional view of the connector of the heater according to an embodiment of the present invention.

[0019] Figure 5 This is a cross-sectional view of the heater used as a reference.

[0020] Figure 6 This is one embodiment of the present invention. A schematic diagram comparing heater flow resistance and heat loss.

[0021] Figure 7 This is one embodiment of the present invention. A schematic diagram comparing heater flow resistance and heat loss.

[0022] Figure 8 This is a schematic diagram showing the comparison between the H / R ratio and the volume and flow resistance of the heater in one embodiment of this utility model.

[0023] Reference numerals: Compressor 10, Housing assembly 11, First chamber 11A, Second chamber 11B, Third chamber 11C, Refrigerant suction port 11E, Refrigerant discharge port 11F, First housing 111, Second housing 112, Third housing 113, Motor assembly 12, Stator assembly 121, Rotor assembly 122, Heater 13, Inlet 13A, Outlet 13B, First heating tube 131, Second heating tube 132, Connector 133, Lower flange 1331, Water box 1332, Guide wall 1303, Flanged part 1304, Inner top surface 1301, Guide surface 1302, Compression assembly 14, Controller 15, Axis of motor assembly L12, Axis of heater L13. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] like Figure 1 and Figure 2The compressor 10 according to an embodiment of the present invention includes: a housing assembly 11, a motor assembly 12, and a heater 13. The motor assembly 12 is disposed within the housing assembly 11, and at least a portion of the heater 13 is disposed within the housing assembly 11. The heater 13 and the motor assembly 12 are distributed along the axis L12 of the motor assembly. The housing assembly 11 provides support and installation space for the motor assembly 12 and the heater 13. The compressor 10 may further include a compression assembly 14, and the motor assembly 12 may be connected to the compression assembly 14 to drive the compression assembly 14 to operate. For example, the housing assembly 11 may have a first chamber 11A and a second chamber 11B. The compression assembly 14 can drive refrigerant (which may include Freon, tetrafluoroethane, or tetrafluoropropylene, etc.) to flow from the first chamber 11A to the second chamber 11B. The refrigerant is output from the second chamber 11B, undergoes heat exchange through a heat exchanger or other structure, and then flows back to the first chamber 11A, forming a refrigerant cycle. The heater 13 is integrated into the compressor 10. The heater 13 can be used to heat the heat exchange medium (which may include water or other fluid media). It can also be connected to the heat exchanger through external pipelines to achieve the circulation of the heat exchange medium. Figure 1 A cross-sectional view of the compressor 10 is shown, illustrating the relative positions of the heater 13 and other components of the compressor 10. Figure 2 A partial exploded view of the compressor 10 is shown, illustrating the relative positions of components such as the first heating tube 131, the second heating tube 132, the lower flange 1331, and the water box 1332 of the heater 13.

[0026] like Figure 1 As shown, the motor assembly 12 is disposed on the housing assembly 11, and the motor assembly 12 includes a stator assembly 121 and a rotor assembly 122. The stator assembly 121 can be stationary relative to the housing assembly 11, while the rotor assembly 122 is rotatably coupled to the stator assembly 121. The stator assembly 121 can drive the rotor assembly 122 to rotate via electromagnetic drive. The rotor assembly 122 can be connected to the compression component 14 of the compressor 10 to drive the compression component 14. Furthermore, the stator assembly 121 includes a stator core and stator windings, and the rotor assembly 122 includes a rotor core and permanent magnets. The stator core can be provided with winding slots, and positioning windings can be disposed in the winding slots. The rotor core can include magnet slots, and permanent magnets can be disposed within these magnet slots. Of course, the motor assembly 12 in this invention can also take other forms, for example, by attaching the permanent magnets to the outer surface of the rotor core. The motor assembly 12 in this utility model can be disposed inside the housing assembly 11. For example, the motor assembly 12 can be disposed inside the first cavity 11A of the aforementioned housing assembly 11. The stator assembly 121 can be interference-fitted with the inner side of the housing assembly 11 to achieve stable installation of the motor assembly 12. The rotor assembly 122 is rotatably disposed inside the stator assembly 121, or the stator assembly 121 is arranged around the rotor assembly 122.

[0027] like Figure 2 and Figure 3 The heater 13 has an inlet 13A and an outlet 13B, which can be located on the same side of the heater 13. The heater 13 includes at least one heating tube (such as a first heating tube 131 and / or a second heating tube 132 described below) with an internal flow channel located between the inlet 13A and the outlet 13B. The heating tube is used to heat the heat exchange medium flowing through the flow channel, and the cross-section of the heating tube perpendicular to the flow channel axis is configured as a closed section surrounding the flow channel. The heater 13 can be located in the housing assembly 11. By installing the heater 13 in the housing assembly 11, the compressor 10 can meet both the heating requirements of the heater 13 and the user's heat exchange requirements through the high-pressure refrigerant discharged from the second chamber 11B, thus enabling the compressor 10 to perform multiple functions. This also improves the environmental adaptability of the compressor 10, resulting in a simple, efficient, compact, space-saving, and low-cost compressor 10. The closed section of the heating tube in the heater 13 surrounding the flow channel improves the sealing performance of the heater 13, making the compressor 10 safer to operate. Additionally, as... Figure 1 and Figure 2 Alternatively, at least a portion of the heater 13 can be disposed within the housing assembly 11. For example, the housing assembly 11 may also include a third cavity 11C. The first cavity 11A, the second cavity 11B, and the third cavity 11C are distributed along the axis L12 of the motor assembly, and at least a portion of the heater 13 can be disposed within the third cavity 11C.

[0028] Optionally, such as Figure 1 and Figure 2 The housing assembly 11 may include a first housing 111, a second housing 112, and a third housing 113. The first housing 111, second housing 112, and third housing 113 may be arranged along the axis L12 of the motor assembly. The first housing 111 is located between the second housing 112 and the third housing 113. A first cavity 11A may be located between the first housing 111 and the second housing 112. The third cavity 11C may be at least partially located between the first housing 111 and the third housing 113 (or at least partially located within the third housing 113). Additionally, a mounting port may be provided at one end of the third cavity 11C in the vertical direction, and at least a portion of the heater 13 may be inserted into the third cavity 11C through the mounting port. The motor assembly 12 may be located within the first housing 111, and the compression assembly 14 may be located within the second housing 112 or between the first housing 111 and the second housing 112.

[0029] Additionally, the compressor 10 also includes a controller 15, which is connected to the heater 13 and the motor assembly 12, and can supply power to the heater 13 and the motor assembly 12. Figure 1The third housing 113 defines a third cavity 11C on one side of the first housing 111. The heater 13 and controller 15 are placed inside the third cavity 11C. A motor assembly 12 and a compression assembly 14 are disposed in the area between the other side of the first housing 111 and the second housing 112. The compressor 10 has a refrigerant exhaust port 11F and a refrigerant intake port 11E. The controller 15 can control the heater 13 and the motor assembly 12. The first housing 111 is sealed to the second housing 112, and the first housing 111 is sealed to the third housing 113. The controller 15 can simultaneously and independently control the heater 13 and the motor assembly 12, and can adjust the heating power of the heater 13 and the speed of the motor assembly 12. This compressor 10, through the integrated controller 15, can simultaneously perform refrigerant compression and heat exchange medium heating functions. This compressor 10 has advantages such as smaller overall size, lighter weight, and lower cost.

[0030] like Figure 3 As shown, heater 13 includes at least one heating tube (such as the first heating tube 131 and / or the second heating tube 132 described below). Heater 13 can be disposed on housing assembly 11, and heater 13 and motor assembly 12 are distributed along the axis L12 of motor assembly. This avoids heater 13 occupying the radial space of compressor 10, improving the space utilization of compressor 10. The heating tube includes a tube body and a heating part. The heating part can be disposed on the outer surface of the tube body, and the heating part can heat the flow channel inside the tube body by heating. The tube body can be configured as a circular tube, a square tube, or other shaped tube, etc., and a flow channel with a closed cross-section (the cross-section is perpendicular to the axis of the tube body) is formed inside the tube body. The heating part can be disposed around the outer surface of the tube body, for example, the heating part can be stacked on the outer surface of the tube body, wherein the heating part can be a thick film heating structure, etc. Thick film heating technology is a highly efficient, fast and compact heating method. Its core principle is to print different functional electronic pastes layer by layer onto a substrate material (tube body) through processes such as screen printing, and then sinter them at high temperatures (usually 800°C-900°C) to finally form an integrated heating element. This may include an insulating dielectric layer, a resistive heating layer, and a protective encapsulation layer. Additionally, the heater 13 also includes a sensor base, upper flange, connecting pipe, guide vanes, and busbars.

[0031] The diameter of the heating tube can be the diameter of the outer surface of the tube body. The heating element can be disposed on the outer surface of the tube body, and the thickness of the heating element is usually small. Therefore, the diameter of the outer surface of the heating element can be approximated as the diameter of the heating tube. The heating tube in this invention can be a circular tube or a non-circular tube. When the heating tube is a circular tube, the diameter of the circular tube is the diameter of the heating tube; when the heating tube is a non-circular tube, the diameter of a circular tube with the same cross-sectional area as the non-circular tube is used as the diameter of the heating tube. For example, if the heating tube is an elliptical tube, and the area enclosed by the outer edge of the cross-section obtained in the plane perpendicular to the axis of the elliptical tube is elliptical, this ellipse can be equivalent to an equivalent circle with the same area. Then, the diameter of this equivalent circle is used as the diameter of the elliptical tube. For example, the heating element can also be other regular or irregular shapes. The area enclosed by the outer edge of the heating element's cross-section can be considered equivalent to a circle with the same area, and the diameter of this circle can be taken as the diameter of the heating element. In other words, when the area enclosed by the outer edge of the heating element's cross-section is S11, the diameter of the heating element is... The cross-section of the heating element is perpendicular to its axis.

[0032] like Figures 3 to 4 The heater 13 according to an embodiment of the present invention includes a first heating tube 131 and a second heating tube 132, which are arranged side by side in a left-right direction. The distance between the first heating tube 131 and the second heating tube 132 is L. The distance between the tubes can be the minimum distance between the first heating tube 131 and the second heating tube 132, which can be measured by inserting calipers between the first heating tube 131 and the second heating tube 132.

[0033] The first heating tube 131 may include a first tube body (not shown in the figure) and a first heating element (not shown in the figure), the first heating element being disposed on the outer surface of the first tube body. Additionally, the second heating tube 132 may include a second tube body (not shown in the figure) and a second heating element (not shown in the figure), the second heating element being disposed on the outer surface of the second tube body.

[0034] like Figure 3 In some embodiments, the heater 13 further includes a connector 133, which connects a first heating tube 131 and a second heating tube 132. The first heating tube 131 and the second heating tube 132 are located on the same side of the connector 133, and the first heating tube 131, the connector 133, and the second heating tube 132 are connected to form a U-shaped flow channel. (Refer to the attached diagram.) Figure 3The first heating tube 131 and the second heating tube 132 extend in the vertical direction, and the connector 133 is connected to the lower end of the first heating tube 131 and the lower end of the second heating tube 132.

[0035] Both the first heating tube 131 and the second heating tube 132 are configured to heat the heat exchange medium flowing through their internal channels, which can further extend the heating time and heating path of the heat exchange medium, resulting in higher heating efficiency. They can also be configured to allow independent adjustment of the heating power of the first heating tube 131 and the second heating tube 132 to control the heating temperature of the heat exchange medium at different parts of the heater 13, making the heating effect of the heat exchange medium more controllable. The first heating tube 131 and the second heating tube 132 are connected in series, and the heat exchange medium is heated sequentially by passing through the first heating tube 131 and the second heating tube 132, which can superimpose the heating effects of the first heating tube 131 and the second heating tube 132 on the heat exchange medium, improving the heating efficiency of the heater 13. The first heating tube 131, the connector 133, and the second heating tube 132 can form sequentially connected flow channels, allowing the heat exchange medium to flow rapidly between the first heating tube 131 and the second heating tube 132, enabling the heater 13 to heat more heat exchange medium in a short time, thus improving the heating efficiency of the heater 13. The connector 133, the first heating tube 131, and the second heating tube 132 are connected in a U-shape. That is, the first heating tube 131 and the second heating tube 132 are located on the same side of the connector 133 and both extend away from the connector 133. The U-shaped pipe can realize the stable reversal of the internal heat exchange medium, so that the heat exchange medium can flow more smoothly between the first heating tube 131, the connector 133, and the second heating tube 132. This helps to reduce the risk of blockage of the heat exchange medium in the heater 13 and improve the reliability of the heater 13 in heating the heat exchange medium.

[0036] The diameter of the first heating element 131 is D1, and the diameter of the second heating element 132 is D2. D1 and D2 can be determined with reference to the diameter of the aforementioned heating elements. The average of the diameters of the first heating element 131 and the second heating element 132 is D, i.e., D = (D1 + D2) / 2.

[0037] The maximum dimension of the flow channel within connector 133 in the vertical direction is H. The flow channel within connector 133 may include an inner top surface 1301 and a guide surface 1302. The guide surface 1302 may be vertically opposite to the lower end of the flow channel inside the first heating tube 131, the lower end of the flow channel inside the second heating tube 132, and the inner top surface 1301. The maximum distance between the inner top surface 1301 and the guide surface 1302 along the axis of the first heating tube 131 or the axis of the second heating tube 132 (refer to the vertical direction in the attached figures) is H.

[0038] Additionally, the connector 133 may include a lower flange 1331 and a water box 1332. The lower flange 1331 connects the first heating tube 131 and the second heating tube 132. The water box 1332 is connected to the lower flange 1331 in the vertical direction. The flow channel formed between the lower flange 1331 and the water box 1332 is used to connect the internal flow channels of the first heating tube 131 and the internal flow channels of the second heating tube 132. The inner top surface 1301 of the connector 133 is located on the lower flange 1331, and the guide surface 1302 of the connector 133 is located on the water box 1332.

[0039] Optionally, the guide surface 1302 is convex downward from both ends to the middle in the left-right direction. Therefore, H can be the distance from the inner top surface 1301 to the middle of the guide surface 1302 in the left-right direction.

[0040] 0.1≤ ≤3. Among them, The ratio represents the rate of change of cross section of the flow channel inside the connector 133 of heater 13. The smaller the ratio, the smaller the minimum flow area of ​​the flow channel inside the connector 133, resulting in greater flow resistance; the larger the ratio, the larger the minimum flow area of ​​the flow channel inside the connector 133, resulting in less flow resistance.

[0041] in, The total width of the first heating tube 131 and the second heating tube 132 along the left-right direction is the distance from the sides of the first heating tube 131 and the second heating tube 132 away from each other along the left-right direction. This width is basically the same as the width of the internal flow channel of the connector 133 along the left-right direction. Therefore... This can demonstrate the height and flowability of connector 133. Additionally, as... Figure 5 The connector, used as a reference, has a semi-circular sector-shaped cross-section constructed with the axes of the first and second heating tubes, and the outer edge diameter of this semi-circular sector is [missing information]. The inner edge diameter of the semicircular sector is L. Figure 5 The area of ​​the shaded region S1 = ,therefore, This can demonstrate the shape of the connector 133 in this utility model and Figure 5 The correspondence of the structures used as references in the text.

[0042] like Figure 6 As shown, in When the value is too small (e.g., less than 0.1), the flow channel size inside connector 133 is small, resulting in a large flow resistance inside connector 133, affecting the flow of the heat exchange medium in heater 13. The flat structure of connector 133 allows the heat exchange medium to be closer to the walls of the first heating tube 131 and the second heating tube 132, resulting in lower heat loss. When the value of is too large (e.g., greater than 3), the flow resistance of the heat exchange medium in the connector 133 is relatively small, which facilitates the flow of the heat exchange medium in the heater 13. However, the heat loss of the heater 13 increases. When the heater 13 is applied to the compressor 10, it will not only affect the size of the compressor 10, but also affect the size of the first heating tube 131 and the second heating tube 132 due to the excessive space occupied by the connector 133, resulting in a reduction in the size of the heating section and affecting the heating efficiency of the heater 13.

[0043] According to an embodiment of the present invention, the heater 13, by... The value is set in the range of 0.1 to 3. Taking into account the volume, flow resistance and heat loss of the heater 13, while ensuring that the connector 133 has a small flow resistance, the volume of the heater 13 is not too large, which can improve the space utilization of the heater 13 and ensure the heating efficiency of the heater. The value can be 0.1, 0.25, 0.35, 0.5, 0.55, 0.60, 0.65, 0.8, 1.0, 1.27, 1.5, 2.0, 2.4, 2.8 or 3.0, etc.

[0044] like Figure 3 , Figure 4 as well as Figure 6 In some embodiments, 0.3≤ ≤2. In this utility model, the guide surface 1302 of the connector 133 can be configured as an arc extending in the left-right direction. By configuring the arc-shaped guide surface 1302, the flowability within the connector 133 can be optimized and the flow resistance of the connector 133 can be reduced. Therefore, in this utility model, the size can be reduced. The value of is selected to reduce the size of connector 133 and improve the space utilization of heater 13. This also improves space utilization, heating efficiency, and overall performance of heater 13 while having lower flow resistance.

[0045] like Figure 4 In some embodiments, the connector 133 includes a guide surface 1302, which is vertically opposite to the lower end of the internal flow channel of the first heating tube 131 and the lower end of the internal flow channel of the second heating tube 132, and the guide surface 1302 gradually protrudes downward from both ends to the middle in the left-right direction. Optionally, refer to the attached figure. Figure 3The left end of the guide surface 1302 extends below the edge of the first heating tube 131 away from the second heating tube 132, and the right end of the guide surface 1302 extends below the edge of the second heating tube 132 away from the first heating tube 131. By providing the guide surface 1302, the heat exchange medium can be guided. Taking the heat exchange medium entering from the first heating tube 131 and then exiting from the second heating tube 132 as an example, when the heat exchange medium entering from the first heating tube 131 enters the connector 133, it will be redirected by the guide surface 1302, directing the heat exchange medium to flow towards the second heating tube 132. This reduces the flow resistance and noise during the heat exchange medium flow process.

[0046] like Figure 4 In the cross section formed by the axis of the first heating tube 131 and the axis of the second heating tube 132, the radius of the arc defined by the two ends and the midpoint in the guide surface 1302 along the left and right directions is R.

[0047] In this configuration, the axes of the first heating tube 131 and the second heating tube 132 can be coplanar, meaning the lines containing the axes of the first heating tube 131 and the second heating tube 132 are parallel or intersecting. This allows a plane to be constructed using these axes, which can then be designated as the aforementioned cross-section. Alternatively, the axes of the first heating tube 131 and the second heating tube 132 can be non-coplanar, meaning the lines containing the axes of the first heating tube 131 and the second heating tube 132 are neither parallel nor intersecting. In this case, the axes of the first heating tube 131 and the second heating tube 132 have a small included angle (e.g., less than 30°). In this situation, a plane passing through one of the axes of the first heating tube 131 and the second heating tube 132, and also passing through the lower end of the other axis, can be approximated as the aforementioned cross-section.

[0048] The guide surface 1302 can be configured to extend from the left edge inside the connector 133 to the right edge inside the connector 133. In this case, the points at the left and right ends of the guide surface 1302 in the cross-section are located at the left and right edges inside the connector 133, respectively. Additionally, in some embodiments, such as... Figure 4The connector 133 also includes a vertical straight surface 1305. The vertical straight surface 1305 can be cut into two straight line segments extending in the vertical direction. In the orthographic projection perpendicular to the vertical direction, the guide surface 1302, the lower end of the internal flow channel of the first heating tube 131 and the lower end of the internal flow channel of the second heating tube 132 are located between the left and right edges of the vertical straight surface 1305. The lower edge of the vertical straight surface 1305 is connected to the guide surface 1302. The intersection points of the left and right ends of the guide surface 1302 with the vertical straight surface 1305 in the cross section are the points of the left and right ends of the guide surface 1302.

[0049] Using the points at both ends of the guide surface 1302 and the midpoint of the guide surface 1302 along the left-right direction as references, these three points can define an arc. The radius (or half the diameter) of this arc is R, and α is the central angle of this arc. The guide line segment formed by the aforementioned cross-section of the guide surface 1302 can be an arc, an elliptical arc, a combination of straight lines and arcs, a combination of straight lines and straight lines, a combination of arcs and arcs, or other shapes. For example, such as... Figure 4 The connector 133 in the cross section may include a left straight line segment, a right straight line segment, and a guide line segment. The left straight line segment and the right straight line segment are formed by cutting the aforementioned vertical straight surface 1305 into the cross section. The guide line segment is formed by cutting the guide surface 1302 into the cross section. The guide surface 1302 has the lower edge of the left straight line segment and the lower edge of the right straight line segment at both ends. The guide line segment may include an arc surface segment and a rounded corner segment. The arc surface segment and the left straight line segment are connected by the rounded corner segment, and the arc surface segment and the right straight line segment are connected by the rounded corner segment.

[0050] like Figure 7 , 0.1≤ ≤1, α= α corresponds to the central angle of the aforementioned arc. It can be approximated by the area of ​​the flow channel inside connector 133 in the aforementioned cross-section (see attached figure). Figure 4 The area of ​​the shaded region within connector 133 can be set to S2. It can be Figure 5 The area dimension within the connector used as a reference (i.e.) Figure 5 The area of ​​the shaded portion within the connector can be set to S1. The internal area dimension S2 of connector 133 in the actual product can be compared with... Figure 5 The area size S1 is used as a reference.

[0051] exist When the value is too small (e.g., less than 0.1), the minimum flow area of ​​the flow channel inside connector 133 is smaller, resulting in greater flow resistance and affecting the flow of the heat exchange medium within heater 13; When the value of is too large (e.g., greater than 1), the minimum flow area of ​​the flow channel inside the connector 133 is larger, resulting in a smaller flow resistance. However, the volume of the connector 133 is too large, which leads to an excessively large size of the heater 13. Moreover, the heat loss of the heater 13 is relatively large. When the heater 13 is applied to the compressor 10, it will not only affect the volume of the compressor 10, but also affect the size of the first heating tube 131 and the second heating tube 132 due to the excessive space occupied by the connector 133, resulting in a reduction in the size of the heating part and affecting the heating efficiency of the heater 13.

[0052] According to the heater 13 of the embodiment of the present invention, the present invention, by... The value is set in the range of 0.1 to 1, which can take into account the volume and flow resistance of the heater 13. While ensuring that the connector 133 has a small flow resistance, the volume of the heater 13 is not too large and the heat loss is small, which can improve the space utilization and heating efficiency of the heater 13. The value can be 0.1, 0.15, 0.2, 0.25, 0.3, 0.5, 0.6, 0.8, 0.9, 0.95 or 1, etc.

[0053] In some embodiments, 0.3≤ ≤0.5. Furthermore, since the guide surface 1302 of the connector 133 can be configured as an arc extending in the left-right direction, the flow within the connector 133 can be optimized and the flow resistance of the connector 133 reduced by configuring the arc-shaped guide surface 1302. Therefore, the size of the connector 133 can be reduced in this invention. The value of is selected to reduce the size of connector 133 and improve the space utilization of heater 13. This also improves space utilization while having lower flow resistance and optimizes the overall performance of heater 13.

[0054] Furthermore, the H / R ratio can be set in the range of 0.2 to 1, specifically, 0.2 ≤ ≤1. The larger the H / R ratio, the higher the vertical height of the heater's connecting pipe, resulting in a larger volume, a larger flow area, and lower flow resistance. For example... Figure 8If the ratio H / R is too small, for example, less than 0.2, the value of H will be very small or R will be very large. This will result in poor flowability in the flow channel inside the connector 133, leading to increased flow resistance in the heater 13, which is not conducive to the heat exchange medium passing through the heater 13. If the ratio H / R is too large, for example, greater than 1, the value of H will be very large or R will be very small. This will result in a larger size of the flow channel inside the connector 133, and the connector 133 will occupy a larger volume, resulting in low space utilization of the heater 13. Moreover, under the same volume, the larger space occupied by the connector 133 will result in a smaller space occupied by the first heating tube 131 and the second heating tube 132, which will affect the size of the heating part in the heater 13, resulting in poor heating efficiency of the heater 13 and being detrimental to the stable operation of the heater 13. Therefore, in this utility model, 0.2 ≤ A value ≤1 allows the heater 13 to have higher space utilization and lower flow resistance, thus improving the operational stability of the heater 13. Optionally, It can be set to 0.2, 0.3, 0.35, 0.4, 0.42, 0.5, 0.55, 0.6, 0.7, 0.8, 0.9, 0.95 or 1, etc.

[0055] like Figure 4 In some embodiments, the connector 133 includes a lower flange 1331 and a water tank 1332. The lower flange 1331 connects to the lower end of the first heating pipe 131 and the lower end of the second heating pipe 132. The water tank 1332 and the lower flange 1331 are distributed and connected in the vertical direction. The water tank 1332 includes a guide wall 1303 and a flange 1304. The guide wall 1303 is opposite to the first heating pipe 131 and the second heating pipe 132 in the vertical direction. A guide surface 1302 is formed on the guide wall 1303. The flange 1304 connects to the periphery of the guide wall 1303 and extends upward. The flange 1304 connects to the lower flange 1331. By providing the flange 1304, the connection between the water tank 1332 and the lower flange 1331 can be facilitated, improving the structural strength and stability of the connection between the water tank 1332 and the lower flange 1331.

[0056] The flange 1304 has a vertical dimension of h. The inner surface of the flange 1304 can be formed as a vertically extending straight surface 1305. This vertical straight surface 1305 is formed as two straight line segments extending vertically in the aforementioned cross-section. The dimension h is the vertical dimension of these straight line segments, and 0.1 ≤ h / H ≤ 1. For example, h / H can be set to 0.1, 0.15, 0.2, 0.3, 0.5, 0.6, 0.8, 0.95, 1.0, etc. Appropriate values ​​for h / H facilitate a stable connection between the water box 1332 and the lower flange 1331 using the flange 1304, improving the structural strength and stability of the connector 133. Optionally, 5mm ≤ H ≤ 30mm, for example, H can be set to 5mm, 10mm, 12mm, 15mm, 18mm, 20mm, 22mm, 25mm, or 30mm, etc. Optionally, 0mm≤h≤30mm, for example, h can be set to 0mm, 5mm, 12mm, 15mm, 18mm, 20mm, 22mm, 25mm or 30mm, etc.

[0057] Additionally, 10mm ≤ R ≤ 100mm, for example, R can be set to 10mm, 15mm, 18mm, 20mm, 22mm, 25mm, 30mm, 50mm, 55mm, 65mm, 70mm, 80mm, 95mm, or 100mm, etc. This allows the value of R to be within an appropriate range, facilitating the flow of the heat exchange medium and reducing the space occupied by the connector 133, thereby improving space utilization.

[0058] As shown in the figure, 10mm ≤ D ≤ 50mm, for example, D can be set to 10mm, 15mm, 18mm, 22mm, 30mm, 35mm, 40mm, 45mm, or 50mm, etc.; 5mm ≤ L ≤ 30mm, for example, L can be set to 5mm, 10mm, 12mm, 15mm, 18mm, 20mm, 22mm, 25mm, or 30mm, etc. By limiting the size of heater 13 within an appropriate range, the problem of heater 13 being too large and occupying too much space is avoided, thus improving the space utilization rate of compressor 10. It also avoids the problem of heater 13 being too small and unable to meet the required heating power. Therefore, by limiting the size of heater 13, the space utilization rate of compressor 10 can be improved while ensuring the power requirements of heater 13.

[0059] According to an embodiment of the present invention, the thermal management system includes the aforementioned compressor 10. Optionally, the thermal management system may include the aforementioned compressor 10, evaporator (not shown in the figure), and condenser (not shown in the figure). The compressor 10, evaporator, and condenser are connected to form a refrigerant circuit. The refrigerant circuit is used to cool the refrigerant flowing through the evaporator and to heat the refrigerant flowing through the condenser using the refrigerant phase change. The refrigerant cooled or heated through the refrigerant circuit can flow to the vehicle's cabin, battery module, etc., for heat exchange to meet the user's heat exchange needs.

[0060] By incorporating a heater 13 into the housing assembly 11 of the compressor 10, the compressor 10 can meet both heating requirements through the heater 13 and user heat exchange requirements through the refrigerant circuit formed by the compressor 10, evaporator, and condenser, thus enabling the compressor 10 to perform multiple functions. Furthermore, this design improves the environmental adaptability of the compressor 10, resulting in a simple, efficient, compact, space-saving, and low-cost compressor 10. Additionally, it allows for a rational power distribution between the compressor 10 and the heater 13, satisfying both the cooling and heating requirements of the compressor 10 and the heater 13, while also achieving lightweight and miniaturization.

[0061] According to an embodiment of the present invention, the vehicle includes the aforementioned thermal management system. Optionally, the vehicle may include the aforementioned thermal management system and an in-vehicle heat exchange device, wherein the in-vehicle heat exchange device is connected to the thermal management system, and the in-vehicle heat exchange device and the thermal management system exchange heat using a heat exchange medium.

[0062] The refrigerant cooled by the refrigerant circuit of the thermal management system can flow through the vehicle's heat exchange device, allowing it to absorb heat from the device and lower its temperature. The refrigerant in the refrigerant circuit of the thermal management system, along with the heat exchange medium heated by the heater 13 in the compressor 10, can also flow through the vehicle's heat exchange device, dissipating heat and raising its temperature, thus enabling temperature control of the vehicle's heat exchange device.

[0063] For example, the in-vehicle heat exchange device can be an onboard air conditioner. By working in conjunction with the thermal management system, the in-vehicle temperature can be regulated to improve passenger comfort. Alternatively, the in-vehicle heat exchange device can be a battery pack. This, in conjunction with the thermal management system, can regulate the battery pack's temperature to ensure normal operation and improve its safety. It prevents overheating due to excessive power output and reduces power output due to low ambient temperatures, allowing the vehicle to perform at its best and enhancing driving safety.

[0064] Here, the vehicle can be a new energy vehicle. In some embodiments, the new energy vehicle can be a pure electric vehicle with the motor assembly 12 as the main driving force. In other embodiments, the new energy vehicle can also be a hybrid vehicle with both an internal combustion engine and the motor assembly 12 as the main driving force. Regarding the internal combustion engine and motor assembly 12 mentioned in the above embodiments that provide driving power for the new energy vehicle, the internal combustion engine can use gasoline, diesel, hydrogen, etc. as fuel, and the way to provide electrical energy to the motor assembly 12 can be a power battery, hydrogen fuel cell, etc., without special limitation. It should be noted that this is merely an exemplary description of the structure of new energy vehicles, etc., and is not intended to limit the protection scope of this utility model.

[0065] By installing a heater 13 at the housing assembly 11 of the compressor 10, the compressor 10 can meet both heating requirements through the heater 13 and user heat exchange requirements through the refrigerant circuit formed by the compressor 10, evaporator, and condenser, thus enabling the compressor 10 to perform multiple functions. Furthermore, this improves the environmental adaptability of the compressor 10, resulting in a simple, efficient, compact, space-saving, and low-cost compressor 10.

[0066] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A heater for a compressor, characterized in that, include: The system comprises a first heating element, a second heating element, and a connector. The first heating element and the second heating element extend vertically and are distributed horizontally. The connector is located at the lower ends of the first heating element and the second heating element. The first heating element, the connector, and the second heating element are connected to form a U-shaped flow channel. The distance between the first heating tube and the second heating tube is L, the average diameter of the first heating tube and the second heating tube is D, and the maximum dimension of the flow channel in the connector along the vertical direction is H. Where, 0.1≤ ≤3.

2. The heater according to claim 1, characterized in that, 0.3≤ ≤2。 3. The heater according to claim 1, characterized in that, The connector includes a guide surface, which is vertically opposite to the lower end of the internal flow channel of the first heating tube and the lower end of the internal flow channel of the second heating tube. The guide surface gradually bulges downward from both ends to the middle in the left-right direction.

4. The heater according to claim 3, characterized in that, In the cross-section constructed by the axes of the first heating tube and the second heating tube, the radius of the arc defined by the two ends and the midpoint in the left-right direction of the guide surface is R, where 0.1 ≤ ≤1, α= .

5. The heater according to claim 4, characterized in that, 0.3≤ ≤0.5; and / or, 0.2≤ ≤1.

6. The heater according to claim 4 or 5, characterized in that, The connector includes a lower flange and a water box. The lower flange connects the lower ends of the first heating tube and the second heating tube. The water box and the lower flange are distributed and connected in the vertical direction. The water box includes a guide wall and a flange. The guide wall is opposite to the first heating tube and the second heating tube in the vertical direction. The guide surface is formed on the guide wall. The flange connects to the periphery of the guide wall and extends upward. The flange connects to the lower flange. The dimension of the flange in the vertical direction is h, where 0.1≤h / H≤1; 5mm≤H≤30mm; 0mm≤h≤30mm; 10mm≤R≤100mm.

7. The heater according to any one of claims 1-5, characterized in that, 10mm≤D≤50mm; 5mm≤L≤30mm.

8. A compressor, characterized in that, include: Housing assembly; A motor assembly, wherein the motor assembly is disposed within the housing assembly; The heater according to any one of claims 1-7, wherein at least a portion of the heater is disposed within the housing assembly, and the heater and the motor assembly are distributed along the axis of the motor assembly.

9. A thermal management system, characterized in that, The thermal management system includes the compressor of claim 8.

10. A vehicle, characterized in that, The vehicle includes the thermal management system as described in claim 9.

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