A compressor

Abstract

The present application provides a kind of compressor, including shell and cover plate, the opening part edge of shell is provided with the sealing shoulder for coating extrusion adhesive, first end face and second end face are formed along the outside and inside of sealing shoulder respectively.The edge of cover plate is provided with the convex rib towards shell.When cover plate is pressed on the opening part of shell, the convex rib extrudes adhesive, it is filled first in the first sealing cavity formed between convex rib and sealing shoulder, then overflow to the outside and inside of sealing shoulder respectively, form first narrow gap sealing part and second narrow gap sealing part, the first gap between convex rib and first end face is always less than the second gap between convex rib and second end face, the volume of second narrow gap sealing part is greater than the volume of first narrow gap sealing part.The present application improves sealing performance without expanding the boundary of compressor whole machine.

Description

Technical Field

[0001] This invention relates to the field of refrigeration compressor technology, and more specifically, to a compressor cover plate and its adhesive-feeding structure, which is particularly suitable for the controller cavity sealing structure of an electric vehicle air conditioning compressor. Background Technology

[0002] With the booming development of the new energy vehicle industry, higher requirements are being placed on the core component of the vehicle air conditioning system: the electric compressor. Consumers are paying increasing attention to vehicle comfort and reliability, which directly drives the development of compressors with better protective performance and longer service life.

[0003] In compressors, especially those used in electric vehicles, a controller element is typically installed to control the compressor's operation. The controller is housed in a dedicated controller chamber, which requires a cover to seal it. This prevents external moisture, dust, and other impurities from entering the controller, thus protecting its normal operation. Therefore, the sealing performance between the cover and the housing directly affects the compressor's reliability and lifespan.

[0004] To improve the waterproof and dustproof capabilities of the controller cavity, existing technologies typically employ an adhesive sealant between the cover and the housing. This sealing method works by applying an adhesive layer between the mating surfaces of the cover and the housing, pressing the cover against the housing to evenly fill the gap between them, and then allowing the adhesive to cure and form a sealing layer, thus achieving waterproofing and dustproofing.

[0005] However, this traditional planar mating sealing structure has a significant drawback: both the mating surfaces of the cover plate and the housing are flat. During cover plate installation, when the cover plate is pressed down, the adhesive is squeezed and flows outwards. Because the mating surfaces are flat, the adhesive can easily be squeezed out from the edges of the cover plate and the housing, leading to the following problems: First, after the adhesive is extruded, the adhesive residue between the mating surfaces is unevenly distributed, with some areas having too little adhesive or even gaps, resulting in discontinuous sealing and forming leakage channels, thus worsening the sealing effect.

[0006] Secondly, the extruded adhesive may overflow onto the outside of the cover plate, affecting the appearance of the compressor, or even overflow into bolt mounting holes, affecting the normal installation and tightening torque of the cover plate bolts.

[0007] Third, uneven adhesive distribution can lead to inconsistent bonding strength between the cover plate and the housing. Under long-term vibration during compressor operation, local weak points in the bonding may peel off, further reducing the reliability of the seal.

[0008] Fourth, because the adhesive is squeezed out, the effective amount of adhesive actually used for sealing is reduced, requiring additional application of adhesive to compensate, resulting in material waste and increased costs.

[0009] To address the aforementioned problems, several improvements have been proposed in the prior art. For example, patent CN222407891U discloses a compressor, an air conditioning system, and a vehicle. In this design, the outer ring of the cover plate is provided with bent sealing ribs, and a corresponding sealing groove is provided on the housing. After injecting adhesive into the sealing groove, the sealing ribs of the cover plate are inserted into the sealing groove. This structure results in a larger contact area between the sealing ribs and the adhesive within the sealing groove, improving the stability of the connection. Furthermore, the adhesive can accumulate within the sealing groove, effectively preventing it from being squeezed out. This enhances the sealing performance between the cover plate and the housing, improves the protection of electronic control components, and increases the reliability of the compressor.

[0010] This existing technical solution represents a significant improvement over traditional planar sealing structures. However, in-depth research and practical application have revealed shortcomings. Specifically, the solution requires a sealing groove on the housing, necessitating sufficient wall thickness to accommodate it. For the compressor as a whole, this means either increasing the overall wall thickness of the housing or requiring a localized outward protrusion to form the sealing groove. Either approach increases the overall dimensions of the compressor. In new energy vehicles, engine compartment and chassis space are extremely limited, imposing strict constraints on the dimensions of various components. Expanding the compressor's overall dimensions directly impacts the vehicle's layout and space utilization, posing challenges to vehicle design. Furthermore, increasing the housing wall thickness or adding localized protrusions increases the compressor's weight and manufacturing cost, contradicting the automotive industry's trend towards lightweight design.

[0011] Therefore, how to design a cover and housing sealing structure that can effectively inhibit the extrusion of adhesive and ensure sealing performance, without expanding the overall boundary of the compressor or affecting the overall vehicle layout, is a technical problem that urgently needs to be solved by those skilled in the art.

[0012] In view of this, the present invention provides a compressor. Summary of the Invention

[0013] In view of this, the present invention provides a compressor to solve the problems in the prior art where the sealing effect is poor due to the adhesive being squeezed out when the compressor cover plate and housing are sealed with adhesive, or where the improved solution requires expanding the overall boundary of the compressor, which affects the overall vehicle layout.

[0014] This invention provides a compressor, comprising: The housing has a sealing shoulder for applying adhesive around the edge of the opening of the housing, and a first end face and a second end face are formed along the outer and inner sides of the sealing shoulder, respectively. A cover plate, the edge of which is provided with raised ribs facing the housing; When the cover plate presses against the opening of the housing, the adhesive squeezed by the rib fills the first sealing cavity formed by the rib and the sealing shoulder, and overflows to the outside and inside of the sealing shoulder respectively to form a first narrow slit sealing part and a second narrow slit sealing part. The first gap between the rib and the first end face is always smaller than the second gap between the rib and the second end face, and the volume of the second narrow slit sealing part is larger than the volume of the first narrow slit sealing part.

[0015] Preferably, the cross-sectional shape of the rib is one of U-shaped, V-shaped or hemispherical.

[0016] Preferably, the outer side of the rib has a third end face, a first concave arc surface, a fourth end face, and a second convex arc surface that are sequentially connected. The first concave arc surface compresses the adhesive. During the pressing down of the cover plate, the adhesive that overflows onto the outside of the sealing shoulder is squeezed by the third end face and the first end face to form a first narrow slit seal. The adhesive overflowing from the inner side of the sealing shoulder is squeezed by the fourth end face and the second end face to form a second narrow slit seal. The adhesive is one or more of the following: hot melt butyl adhesive, heat-reactive polyurethane hot melt adhesive, epoxy resin adhesive, or neutral curing silicone adhesive.

[0017] Preferably, the cross-section of the first sealing cavity is a quarter circle, and the thickness and width of the second narrow slit sealing part are both greater than the thickness and width of the first narrow slit sealing part.

[0018] Preferably, the outer side of the rib has a step, the step includes a fifth end face perpendicular to the first end face and a sixth end face parallel to the first end face, the width H of the fifth end face satisfies H≤15mm, the width W of the sixth end face satisfies W≤10mm, and W≤H.

[0019] Preferably, the height S1 of the protruding rib satisfies 0mm < (S1-H) ≤ 10mm, and the height S2 of the step satisfies 0mm ≤ S2 ≤ 0.9H.

[0020] Preferably, the cross-section of the first sealing cavity is rectangular, and the thickness and width of the second narrow slit sealing part are both greater than the thickness and width of the first narrow slit sealing part.

[0021] Preferably, the outer side of the rib has a concave step, the concave step includes a fifth end face perpendicular to the first end face and a seventh end face that is inclined and concave on one side, the seventh end face and the first end face of the shell form an angle α, the angle α satisfies 0°≤α≤60°.

[0022] Preferably, the cross-section of the first sealing cavity is a right-angled trapezoid, and the thickness and width of the second narrow slit sealing part are both greater than the thickness and width of the first narrow slit sealing part, with the hypotenuse of the right-angled trapezoid facing the second gap.

[0023] Preferably, the cover plate is connected to the opening of the housing by welding, bonding, or screwing.

[0024] Applying the technical solution of this invention, a sealing shoulder is provided at the edge of the opening of the housing to accommodate and guide the flow of adhesive. A raised rib facing the housing is provided on the cover plate. When the cover plate presses against the housing, the raised rib first contacts and compresses the adhesive on the sealing shoulder. Since the cooperation between the raised rib and the sealing shoulder forms a first sealing cavity, the adhesive, after being compressed, preferentially fills this first sealing cavity, forming a first seal. Subsequently, excess adhesive overflows to the outer and inner sides of the sealing shoulder, respectively, and is compressed by the first gap between the raised rib and the first end face and the second gap between the raised rib and the second end face, respectively, forming a first narrow-slit seal and a second narrow-slit seal. Because the first gap is always smaller than the second gap, and the volume of the second narrow-slit seal is larger than the volume of the first narrow-slit seal, the adhesive is more likely to overflow inwards (i.e., towards the inside of the compressor), while less overflows outwards. This ensures the cleanliness of the outer side of the sealing shoulder, preventing adhesive overflow from affecting the cover plate installation and appearance, while also allowing more adhesive to be retained on the inner side of the sealing shoulder, forming a thicker and more reliable sealing structure.

[0025] Compared with existing technologies, the technical solution of this invention does not require the creation of sealing grooves on the housing, thus avoiding increases in housing wall thickness and compressor overall dimensions. Simultaneously, the cooperative structure of the ribs and sealing shoulders effectively controls the flow direction and distribution of the adhesive, preventing excessive adhesive extrusion while ensuring the continuity and reliability of the seal. Furthermore, this structure guides the adhesive to critical sealing areas, improving adhesive utilization efficiency and reducing material costs. Therefore, the technical solution of this invention simultaneously solves the problems of poor sealing performance and increased overall dimensions in existing technologies, representing a significant technological advancement. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0027] Figure 1 This is a partial cross-sectional view of the compressor of the present invention.

[0028] Figure 2 This is the first embodiment of the present invention. Figure 1 A schematic diagram showing that the adhesive in region X is not compressed.

[0029] Figure 3 This is the first embodiment of the present invention. Figure 1 A schematic diagram of the adhesive in region X after it has been squeezed out.

[0030] Figure 4 This is the second embodiment of the present invention. Figure 1 A schematic diagram showing that the adhesive in region X is not compressed.

[0031] Figure 5 This is the second embodiment of the present invention. Figure 1 A schematic diagram of the adhesive in region X after it has been squeezed out.

[0032] Figure 6 This is the third embodiment of the present invention. Figure 1 A schematic diagram showing that the adhesive in region X is not compressed.

[0033] Figure 7 This is the third embodiment of the present invention. Figure 1 A schematic diagram of the adhesive in region X after it has been squeezed out.

[0034] Figure Labels

[0035] 1 bolt

[0036] 2 Controllers

[0037] 3. Controller cavity

[0038] 4. Cover plate

[0039] 5. Housing

[0040] 6. Adhesive

[0041] 11 First Sealing Cavity

[0042] 12 First narrow slit sealing part

[0043] 13 Second narrow slit sealing part

[0044] α angle

[0045] k1 First end face

[0046] k2 Second end face

[0047] m1 Third end face

[0048] a1 Fourth end face

[0049] b1 Fifth end face

[0050] b2 Sixth end face

[0051] b3 Seventh end face

[0052] c1 Eighth end face

[0053] c2 Ninth end face

[0054] r1 First concave arc surface

[0055] r2 Second convex arc surface

[0056] g1 First gap

[0057] g2 Second gap

[0058] A convex rib

[0059] Step B

[0060] C Sealing shoulder

[0061] D Concave Step Detailed Implementation

[0062] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0063] The use of terms such as "first," "second," and similar terms in the specific description does not indicate any order, quantity, or importance, but is merely used to distinguish different components. Furthermore, in the description of this invention, terms such as "upper," "lower," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention.

[0064] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features in different embodiments can be combined with each other.

[0065] Figure 1 This is a partial cross-sectional view of the compressor of the present invention. Figure 2 This is the first embodiment of the present invention. Figure 1 A schematic diagram showing that the adhesive in region X is not compressed. Figure 3 This is the first embodiment of the present invention. Figure 1 A schematic diagram showing the adhesive in region X after it has been compressed. Figures 1 to 3As shown, the compressor of the present invention includes: a housing 5, a sealing shoulder C for applying adhesive 6 is provided around the edge of the opening of the housing 5, and a first end face k1 and a second end face k2 are formed along the outer and inner sides of the sealing shoulder C respectively (the first end face k1 is approximately perpendicular to the second end face k2); a cover plate 4, the edge of the cover plate 4 is provided with a rib A facing the housing 5; when the cover plate 4 covers the opening of the housing 5, the adhesive 6 squeezed by the rib A fills the first sealing cavity 11 formed by the rib A and the sealing shoulder C, and overflows to the outer and inner sides of the sealing shoulder C respectively to form a first narrow slit sealing part 12 and a second narrow slit sealing part 13, the first gap g1 between the rib A and the first end face k1 is always smaller than the second gap g2 between the rib A and the second end face k2, and the volume of the second narrow slit sealing part 13 is larger than the volume of the first narrow slit sealing part 12. In the present invention, the sealing shoulder C is provided at the edge of the opening of the housing 5, and the sealing shoulder C is a raised platform structure for accommodating the pre-applied adhesive 6. The sealing shoulder C has an outer side facing the outside of the compressor and an inner side facing the inside of the compressor. The outer housing surface forms a first end face k1, and the inner housing surface forms a second end face k2. The cover plate 4 is a plate-shaped member used to close the opening of the housing 5. Its edges are formed with ribs A through stamping or other forming processes, which protrude towards the housing 5. During assembly, an appropriate amount of adhesive 6 is first applied to the sealing shoulder C of the housing 5, and then the cover plate 4 is placed on the housing 5. As the cover plate 4 is pressed down, the ribs A first contact and compress the adhesive 6 on the sealing shoulder C. Due to the limited space between the ribs A and the sealing shoulder C, the adhesive 6, after being compressed, preferentially fills the first sealing cavity 11 formed by the ribs A and the sealing shoulder C, forming an initial seal. As the cover plate 4 continues to be pressed down to the final installation position, excess adhesive 6 overflows from the first sealing cavity 11, flowing to the outer and inner sides of the sealing shoulder C, respectively. Adhesive 6 flowing towards the outside of the sealing shoulder C enters the first gap g1 between the rib A and the first end face k1, and is compressed within this gap to form the first narrow slit seal 12. Adhesive 6 flowing towards the inside of the sealing shoulder C enters the second gap g2 between the rib A and the second end face k2, and is compressed within this gap to form the second narrow slit seal 13. Since the first gap g1 is always smaller than the second gap g2, this means that the gap between the rib A and the outer shell surface is narrower than the gap between the rib A and the inner shell surface. According to fluid dynamics principles, under the same pressure, adhesive 6 is more likely to flow towards the wider gap with less resistance. Therefore, more adhesive 6 flows towards the inner second gap g2, making the volume of the second narrow slit seal 13 larger than the volume of the first narrow slit seal 12.

[0066] This invention avoids increasing the wall thickness of the housing 5 and the overall boundary of the compressor by setting a sealing shoulder C on the housing 5 instead of a sealing groove, which is beneficial to the spatial layout of the vehicle and the lightweighting of the compressor. Secondly, by setting the first gap g1 to be smaller than the second gap g2, the adhesive 6 preferentially flows inward (towards the inside of the compressor), reducing the amount of adhesive 6 used that overflows outward, thereby preventing the adhesive 6 from overflowing onto the outside of the cover plate 4 and affecting the appearance and installation of the cover plate bolts. The adhesive 6 is one or more of hot melt butyl rubber, heat-reactive polyurethane hot melt adhesive, epoxy resin adhesive, or neutral curing silicone adhesive, but is not limited thereto.

[0067] Furthermore, the second narrow slit seal 13 has a larger volume, enabling the formation of a thicker and more continuous sealing layer inside the sealing shoulder C, significantly improving the reliability and durability of the seal. Finally, the first sealing cavity 11, the first narrow slit seal 12, and the second narrow slit seal 13 together constitute multiple sealing defenses, ensuring the overall sealing effect even if one of the seals fails.

[0068] In a preferred embodiment, the cross-sectional shape of the rib A is one of U-shaped, V-shaped, or hemispherical. The cross-sectional shape of the rib A at the edge of the cover plate 4 can be selected according to specific manufacturing processes and sealing requirements. A U-shaped cross-section means the rib A has a U-shaped cross-section with a rounded bottom and straight sides. This shape of rib A has good structural strength and formability, making it suitable for mass production via stamping. A V-shaped cross-section means the rib A has a V-shaped cross-section with a sharp top and gradually expanding sides. This shape of rib A can generate higher local pressure when extruding the adhesive 6, which helps to push the adhesive 6 to both sides and promotes uniform filling of the adhesive 6. A hemispherical cross-section means the rib A has a semi-circular cross-section with a smooth arc surface. This shape of rib A does not generate stress concentration when extruding the adhesive 6 and has good demolding properties, making it suitable for molding via die casting or injection molding.

[0069] In this embodiment, multiple cross-sectional shapes of the rib A are provided, allowing designers to flexibly select the most suitable cross-sectional shape based on the specific operating conditions, manufacturing process, and cost requirements of the compressor. U-shaped cross-section rib A is suitable for mass production by stamping, resulting in lower costs; V-shaped cross-section rib A is suitable for applications requiring higher extrusion pressure, providing better sealing; hemispherical cross-section rib A is suitable for applications requiring avoidance of stress concentration or the use of die-casting processes. Regardless of the cross-sectional shape chosen, the sealing principle of this invention can be achieved, ensuring the directional flow of the adhesive 6 and the sealing effect.

[0070] In a preferred embodiment, the outer side of the rib A has a third end face m1, a first concave arc surface r1, a fourth end face a1, and a second convex arc surface r2 in sequence. The first concave arc surface r1 compresses the adhesive 6. During the pressing down of the cover plate 4, the adhesive 6 overflowing from the outer side of the sealing shoulder C is compressed by the third end face m1 and the first end face k1 to form a first narrow slit seal 12; the adhesive 6 overflowing from the inner side of the sealing shoulder C is compressed by the fourth end face a1 and the second end face k2 to form a second narrow slit seal 13. The specific geometric structure of the rib A is defined in detail. The outer side of the rib A (i.e., the direction away from the center of the cover plate 4) has multiple continuous surface features. Specifically, extending outward from the root of the rib A, the third end face m1, the first concave arc surface r1, the fourth end face a1, and the second convex arc surface r2 are sequentially arranged. The third end face m1 is approximately parallel to the first end face k1 and is located at the outermost root of the rib A. The first concave arc surface r1 is an inwardly recessed arc-shaped surface that connects the third end face m1 and the fourth end face a1. The fourth end face a1 is approximately perpendicular to the first end face k1 and is located in the top region of the rib A. The second convex arc surface r2 is an outwardly protruding arc-shaped surface located inside the fourth end face a1 and connecting the fourth end face a1 with the body of the rib A. During the pressing down of the cover plate 4, the first concave arc surface r1 is the main surface that directly compresses the adhesive 6 on the sealing shoulder C. When the adhesive 6 overflows from the first sealing cavity 11, the adhesive 6 flowing to the outside of the sealing shoulder C is jointly compressed by the third end face m1 and the first end face k1 of the housing 5 to form the first narrow slit sealing part 12. The adhesive 6 flowing to the inside of the sealing shoulder C is jointly compressed by the fourth end face a1 and the second end face k2 of the housing 5 to form the second narrow slit sealing part 13.

[0071] This embodiment achieves precise control over the flow path of the adhesive 6 by designing the outer side of the rib A with multiple continuous surface features. The first concave arc surface r1 serves as the main extrusion surface, forming the first sealing cavity 11 together with the sealing shoulder C. This arc surface generates uniform extrusion force, ensuring uniform filling of the adhesive 6. The third end face m1 cooperates with the first end face k1 to form a narrow slit sealing area on the outer side of the sealing shoulder C. The adhesive 6 in this area is thinner and narrower, serving as an auxiliary seal and preventing external impurities from entering. The fourth end face a1 cooperates with the second end face k2 to form a wider narrow slit sealing area on the inner side of the sealing shoulder C. The adhesive 6 in this area is thicker and wider, forming the main sealing layer. The second convex arc surface r2 serves as a guide and transition, preventing the adhesive 6 from generating eddies or stagnating during flow. This multi-segment surface design makes the distribution of the adhesive 6 more controllable and optimized, significantly improving the sealing effect.

[0072] In a preferred embodiment, the first sealing cavity 11 has a quarter-circle cross-section, and the thickness and width of the second narrow-slit sealing portion 13 are both greater than the thickness and width of the first narrow-slit sealing portion 12. The geometry of the first sealing cavity 11 and the relative dimensions of the first narrow-slit sealing portion 12 and the second narrow-slit sealing portion 13 are further defined. The cross-section of the first sealing cavity 11 is constructed as a quarter-circle. This is the spatial shape enclosed by the first concave arc surface r1 on the rib A and the corresponding surface on the sealing shoulder C. The quarter-circle cross-section has a smooth arc-shaped bottom and vertical sidewalls. This shape facilitates the smooth flow of the adhesive 6 during extrusion and can accommodate a larger amount of adhesive 6 to form the main seal. Simultaneously, the thickness (i.e., the dimension perpendicular to the sealing surface) and width (i.e., the dimension parallel to the sealing surface) of the second narrow-slit sealing portion 13 are both greater than the thickness and width of the first narrow-slit sealing portion 12. This means that the inner sealing area has a larger cross-sectional area than the outer sealing area.

[0073] In this embodiment, the first sealing cavity 11 adopts a quarter-circular cross-section, giving it a large volume and smooth inner wall, capable of storing sufficient adhesive 6 to form a reliable main seal. Simultaneously, the circular cross-section lacks sharp edges, avoiding stress concentration or cutting of the adhesive 6 during compression, ensuring the integrity and continuity of the adhesive 6. The thickness and width of the second narrow-slit sealing portion 13 are both greater than those of the first narrow-slit sealing portion 12, further strengthening the dominance of the inner seal. Since the inner sealing area faces the compressor interior and is the main line of defense against external moisture and dust ingress, increasing the sealing size of this area significantly improves the seal's fault tolerance and durability. Even if the adhesive 6 undergoes slight aging or shrinkage due to long-term operation, the thicker sealing layer can still maintain effective sealing contact. The outer sealing area is thinner and smaller, serving as an auxiliary seal without wasting excessive adhesive 6. This "thick inside, thin outside" dimensional configuration achieves optimal material utilization while ensuring sealing reliability.

[0074] Figure 4 This is the second embodiment of the present invention. Figure 1 A schematic diagram showing that the adhesive in region X is not compressed. Figure 5 This is the second embodiment of the present invention. Figure 1 A schematic diagram showing the adhesive in region X after it has been compressed. Figure 4 and 5As shown, the second embodiment of the present invention differs in structure from the first embodiment of the rib A. In the second embodiment of the present invention, a step B protrudes from the outer side of the rib A. Step B has a fifth end face b1 perpendicular to the first end face k1 and a sixth end face b2 parallel to the first end face k1. The width H of the fifth end face b1 satisfies H≤15mm, and the width W of the sixth end face b2 satisfies W≤10mm, and W≤H. In this embodiment, a step B structure is further provided on the outer side of the rib A. Step B is a stepped feature protruding outward from the outer surface of the rib A. The step B has two main functional surfaces: the fifth end face b1 and the sixth end face b2. The fifth end face b1 is approximately perpendicular to the first end face k1, forming a vertical sidewall surface. The sixth end face b2 is approximately parallel to the first end face k1, forming a horizontal step surface. The width H of the fifth end face b1 refers to the height dimension of the vertical sidewall, which is limited to less than or equal to 15 mm in this embodiment. The width W of the sixth end face b2 refers to the width of the horizontal step surface, which is limited to less than or equal to 10 mm in this embodiment. Simultaneously, W is less than or equal to H, meaning the width of the horizontal step surface is not greater than the height of the vertical sidewall. The above dimensional range is optimized based on the flow characteristics of the adhesive and the actual assembly space of the sealing structure, ensuring sufficient extrusion effect while avoiding an excessively large structure that could affect the overall machine boundary.

[0075] The introduction of step B in this embodiment adds a new functional surface to the sealing structure. The fifth end face b1, as a vertical blocking surface, can effectively prevent the adhesive 6 from overflowing excessively to the outside and guide the adhesive 6 to flow inward. The sixth end face b2, as a horizontal step surface, can form a second extrusion gap with the first end face k1 of the housing 5 during the pressing of the cover plate 4, further controlling the distribution of the adhesive 6. The width H of the fifth end face b1 is limited to ≤15mm, and the width W of the sixth end face b2 is limited to ≤10mm, with W≤H. The technical significance of these dimensional limitations is as follows: First, it ensures that the size of step B is not too large, thus affecting the overall structural strength of the cover plate 4; second, it ensures that the gap formed by the fit between step B and the shell 5 has a suitable dimensional range, generating sufficient extrusion force to ensure uniform distribution of the adhesive 6, while avoiding assembly difficulties or excessive assembly stress due to an excessively small gap; finally, the W≤H limitation ensures that the height of the vertical sidewall of step B is not less than the width of the horizontal step surface, making the vertical blocking surface take precedence over the horizontal extrusion surface, thereby more effectively controlling the flow direction of the adhesive 6. These dimensional parameters were obtained through extensive experiments and simulation optimization, achieving optimal manufacturability and economy while ensuring sealing performance.

[0076] In a preferred embodiment, the height S1 of rib A satisfies 0mm < (S1-H) ≤ 10mm, and the height S2 of step B satisfies 0mm ≤ S2 ≤ 0.9H. The height dimensions of rib A and step B are further defined. The height S1 of rib A refers to the vertical distance from the reference plane of cover plate 4 to the top of rib A (i.e., the fourth end face a1 or a position equivalent to it). The height S2 of step B refers to the vertical distance from the reference plane of cover plate 4 to the sixth end face b2 of step B. This embodiment limits the difference between S1 and H to between 0 and 10 mm, meaning that the height S1 of rib A is greater than the width H of the fifth end face b1, but the difference does not exceed 10 mm. Simultaneously, the height S2 of step B satisfies the condition of being greater than or equal to 0 and less than or equal to 0.9 times H. The case where S2 can be 0 means that in some simplified designs, step B can be omitted (i.e., S2=0), in which case rib A directly mates with the shell 5.

[0077] This embodiment ensures the functionality and reliability of the sealing structure during assembly by quantitatively limiting the height S1 of the rib A and the height S2 of the step B. The inequality 0mm < (S1 - H) ≤ 10mm means that the top of the rib A must be higher than the top of the fifth end face b1 of the step B, i.e., S1 must be greater than H. This ensures that the rib A contacts the adhesive 6 first and undergoes the main extrusion. If S1 is equal to or less than H, the step B will contact the adhesive 6 before the rib A, altering the flow path of the adhesive 6 and affecting the sealing effect. Simultaneously, the difference between S1 and H should not exceed 10mm. This is to account for the overall thickness of the cover plate 4 and the limitations of the stamping process; a large difference would increase manufacturing difficulty and material costs. The limitation of the step B height S2 (0mm ≤ S2 ≤ 0.9H) has the technical significance of allowing the height of the step B to be selected between 0 and 0.9 times H according to specific requirements. S2 = 0 corresponds to a simplified structure without steps, suitable for applications with relatively low sealing requirements. S2, close to 0.9H, corresponds to a higher step, suitable for applications requiring stronger adhesive flow control. These quantified parameters provide designers with clear design guidance, enabling the sealing structure to be optimized for different application needs.

[0078] In a preferred embodiment, the first sealing cavity 11 has a rectangular cross-section, and the thickness and width of the second narrow slit sealing portion 13 are both greater than the thickness and width of the first narrow slit sealing portion 12. The first sealing cavity 11 has a rectangular cross-section. This is a spatial shape formed by the corresponding plane on the rib A and the corresponding plane on the sealing shoulder C. The rectangular cross-section has a flat bottom and vertical sidewalls, a shape that complements the structure of the step B, forming a regular sealing cavity. Compared to the aforementioned quarter-circular cross-section, the rectangular cross-section is easier to achieve by stamping or machining, dimensional accuracy is easier to control, and, with the same total amount of adhesive 6, is beneficial for extending the overall length of the sealing path. Meanwhile, in this embodiment, the thickness and width of the second narrow slit sealing portion 13 remain greater than those of the first narrow slit sealing portion 12, ensuring the dominance of the inner seal.

[0079] This embodiment provides a rectangular cross-section first sealing cavity 11 that matches the structure of step B. The technical advantage of the rectangular cross-section lies in its simple processing and high dimensional accuracy, making it particularly suitable for mass production of cover plates 4 using stamping processes. The regular rectangular cavity makes the flow behavior of the adhesive 6 more predictable during the extrusion process, facilitating simulation optimization through computational fluid dynamics. Simultaneously, the flat bottom of the rectangular cross-section can form a good fit with the sixth end face b2 of step B, jointly controlling the overflow path of the adhesive 6. The characteristic that the thickness and width of the second narrow slit sealing part 13 are greater than those of the first narrow slit sealing part 12 remains unchanged in this embodiment, continuing to leverage the technical effect of internal sealing as the primary method and external sealing as the secondary method. This combination design of "rectangular cavity + step B + thicker inside and thinner outside" simplifies the manufacturing process and reduces costs while ensuring sealing reliability.

[0080] Figure 6 This is the third embodiment of the present invention. Figure 1 A schematic diagram showing that the adhesive in region X is not compressed. Figure 7 This is the third embodiment of the present invention. Figure 1 A schematic diagram showing the adhesive in region X after it has been compressed. Figure 6 and 7As shown, the third embodiment of the present invention differs from the structure of the rib A in the first and second embodiments. In the third embodiment, a concave step D protrudes from the outer side of the rib A. The concave step D includes a fifth end face b1 perpendicular to the first end face k1 and a seventh end face b3 that is inclined and concave on one side. The seventh end face b3 forms an angle α with the first end face k1 of the housing 5, where the angle α satisfies 0°≤α≤60°. A concave step D structure is provided on the outer side of the rib A. This concave step D differs from the aforementioned step B. The concave step D also has a fifth end face b1 perpendicular to the first end face k1, but the surface connected to the fifth end face b1 is not a horizontal step surface, but a seventh end face b3 that is inclined and concave on one side. The seventh end face b3 is an inclined surface that forms an angle α with the first end face k1 of the housing 5. This angle α can be selected between 0 degrees and 60 degrees. When α = 0 degrees, the seventh end face b3 is parallel to the first end face k1, equivalent to a horizontal step surface; when α = 60 degrees, the seventh end face b3 forms a 60-degree angle with the first end face k1, forming an inclined guide surface. The concave characteristic means that the seventh end face b3 is concave inward relative to the outer surface of the convex rib A, forming a shape similar to a trumpet or funnel.

[0081] In this embodiment, the inclined seventh end face b3 of the concave step D serves to guide the flow direction of the adhesive 6. When the adhesive 6 overflows from the first sealing cavity 11 and flows outward, the inclined seventh end face b3 generates an inward component force, pushing the adhesive 6 to flow inward preferentially. The magnitude of the angle α determines the strength of this guiding effect: the larger α is, the stronger the guiding effect; the smaller α is, the weaker the guiding effect. By selecting an appropriate α value, the amount of adhesive 6 overflowing outward can be precisely controlled. When α = 0 degrees, the concave step D degenerates into a normal horizontal step, and the guiding effect is weakest; when α = 60 degrees, the guiding effect is strongest. Setting the upper limit of α to 60 degrees takes into account the balance between manufacturing feasibility and guiding effect. An excessively large inclination angle would cause the seventh end face b3 to be too steep, which may hinder the flow of the adhesive 6. This inclined guiding surface design gives the sealing structure an adjustable adhesive 6 flow direction control capability, providing flexible configuration options for different application scenarios.

[0082] In a preferred embodiment, the first sealing cavity 11 has a right-angled trapezoidal cross-section, and the thickness and width of the second narrow-slit sealing portion 13 are both greater than the thickness and width of the first narrow-slit sealing portion 12, with the hypotenuse of the right-angled trapezoid facing the second gap g2. The first sealing cavity 11 is constructed as a right-angled trapezoid. This is the spatial shape formed by the corresponding surface on the rib A (including the seventh end face b3 of the concave step D) and the corresponding surface on the sealing shoulder C. The right-angled trapezoid has one right-angled side and one hypotenuse, with the hypotenuse facing the second gap g2 (i.e., the inward direction). This geometry matches the inclined guide surface of the concave step D. Meanwhile, consistent with the aforementioned embodiments, the thickness and width of the second narrow-slit sealing portion 13 are still greater than the thickness and width of the first narrow-slit sealing portion 12, ensuring the dominance of the inner seal.

[0083] In this embodiment, the first sealing cavity 11 with a right-angled trapezoidal cross-section and the inclined seventh end face b3 of the concave step D form an optimal synergistic effect. The hypotenuse of the right-angled trapezoid faces inward, meaning that the sealing cavity has a gradually expanding space in the direction closer to the inside. When the adhesive 6 is squeezed, this gradually expanding cavity shape generates a pressure gradient, guiding the adhesive 6 to flow preferentially inward (i.e., in the expanding direction). This, combined with the guiding effect of the concave step D, further strengthens the inward flow tendency of the adhesive 6. Compared with a rectangular cross-section, the right-angled trapezoidal cross-section has better flow guiding performance; compared with a quarter-circular cross-section, the right-angled trapezoidal cross-section is easier to process, especially when using a stamping process, the shape of the right-angled trapezoid can be obtained by one-time molding. The characteristic that the thickness and width of the second narrow slit sealing part 13 are both greater than the thickness and width of the first narrow slit sealing part 12 is also maintained in this embodiment, forming an optimal combination of "right-angled trapezoidal cavity + inclined guiding surface + thicker inside and thinner outside", achieving the best balance between sealing reliability and manufacturability.

[0084] In a preferred embodiment, the cover plate 4 is connected to the opening of the housing 5 by welding, bonding, or screwing. The method of fixing the cover plate 4 to the housing 5 is specified. The cover plate 4 can be connected to the housing 5 by welding, such as laser welding, resistance welding, or arc welding. Welded connections have the advantages of high connection strength, good sealing performance, and no need for additional fasteners. The cover plate 4 can also be connected to the housing 5 by bonding, that is, using the aforementioned adhesive 6 itself or additional adhesives to achieve both sealing and fixing. Bonded connections have the advantages of uniform stress distribution, no heat-affected zone, and simple process. The cover plate 4 can also be connected to the housing 5 by screwing, that is, corresponding threaded holes are provided on the cover plate 4 and the housing 5, and the connection is fastened by bolts 1. Screwed connections have the advantages of being detachable, easy to maintain, and easy to replace. In practical applications, a suitable connection method can be selected according to the specific usage requirements of the compressor, or multiple connection methods can be combined.

[0085] This embodiment provides multiple connection options between the cover plate 4 and the housing 5, allowing for greater flexibility in compressor design. Welded connections are suitable for applications requiring extremely high sealing and connection strength, where disassembly and maintenance are unnecessary, such as compressors with one-time sealing. Adhesive connections are suitable for applications requiring simplified processes and fewer parts; in this case, the adhesive 6 serves both sealing and fixing functions, eliminating the need for bolts and other fasteners. Threaded connections are suitable for applications requiring periodic maintenance or controller inspection, facilitating the removal of the cover plate 4 for operation. Designers can choose the most suitable connection method based on the specific application scenario, maintenance requirements, and cost budget of the compressor. Regardless of the chosen connection method, the basic function of the sealing structure of this invention remains unaffected; that is, reliable sealing is achieved by controlling the flow direction and distribution of the adhesive 6 through the cooperation of the rib A and the sealing shoulder C.

[0086] The preferred embodiment of the compressor of the present invention will be described in detail below with reference to the accompanying drawings. This embodiment includes as many technical features of the present invention as possible and represents the simplified form in which the technical effects of the present invention are most prominent. Please refer to... Figure 1 , Figure 6 , Figure 7 This invention provides a compressor, particularly suitable for air conditioning systems in new energy vehicles. The compressor mainly includes a housing 5, a cover plate 4, a controller 2 disposed within the housing 5, and other compressor functional components. A controller cavity 3 is formed within the housing 5, and the controller 2 is installed within this cavity. The cover plate 4 is used to close the opening of the housing 5, thereby sealing the controller 2 within the controller cavity 3 and preventing external moisture, dust, and other impurities from entering the cavity and damaging the controller 2.

[0087] like Figure 1 As shown, an annular sealing shoulder C is provided at the edge of the opening of the housing 5. This sealing shoulder C is a platform structure protruding from the body material of the housing 5, and its purpose is to accommodate and guide the adhesive 6 during assembly. The sealing shoulder C has a generally flat upper surface for applying the adhesive 6. A first end face k1 and a second end face k2 are formed along the outer side (i.e., the side closer to the compressor exterior) and the inner side (i.e., the side closer to the compressor interior, controller cavity 3), respectively. The first end face k1 is the housing surface of the housing 5 on the outer side of the sealing shoulder C, and the second end face k2 is the housing surface of the housing 5 on the inner side of the sealing shoulder C. After the cover plate 4 is pressed into place, these two end faces work together with the corresponding surfaces of the cover plate 4 to form a narrow-slit sealing area.

[0088] The cover plate 4 is a sheet metal part manufactured by stamping. An annular rib A is formed at the edge of the cover plate 4 by stamping, protruding towards the housing 5. The shape and size of the rib A match the sealing shoulder C of the housing 5 so that they can form an effective fit when the cover plate 4 is closed. A recessed step D is also provided on the outer side of the rib A of the cover plate 4. This recessed step D is a structural feature that protrudes outward from the outer surface of the rib A; its specific geometry will be described in detail later.

[0089] The cover plate 4 is fixedly connected to the housing 5 by multiple bolts 1. Multiple threaded holes are provided around the edge of the opening in the housing 5, and multiple bolt through holes are provided at corresponding positions on the cover plate 4. During assembly, the bolts 1 are passed through the bolt through holes in the cover plate 4 and screwed into the threaded holes in the housing 5. The cover plate 4 is pressed tightly onto the housing 5 by controlling the tightening torque. An adhesive 6 is pre-applied between the cover plate 4 and the housing 5. This adhesive 6 flows under the pressure of the cover plate 4 and fills the gap between the cover plate 4 and the housing 5, forming a sealing layer after curing. The adhesive 6 can be one or more of hot-melt butyl rubber, heat-reactive polyurethane hot-melt adhesive, epoxy resin adhesive, or neutral-curing silicone adhesive. These adhesives 6 have good adhesion, temperature resistance, and aging resistance, and can adapt to various operating conditions during long-term compressor operation.

[0090] Please see Figure 6 and Figure 7 , Figure 6 This shows the initial state of the sealing structure in this embodiment before the cover plate 4 is pressed down. Figure 7 The final state of cover plate 4 after it has been pressed into place is shown.

[0091] like Figure 6 As shown, the sealing shoulder C of the housing 5 has an eighth end face c1 and a ninth end face c2. The eighth end face c1 is the upper surface of the sealing shoulder C, used for applying adhesive 6. The ninth end face c2 is the side wall surface of the sealing shoulder C, which mates with the corresponding surface of the rib A to form a first sealing cavity 11. In the initial state, a certain amount of adhesive 6 is pre-applied to the eighth end face c1 of the sealing shoulder C. The application method can be automatic dispensing or manual application, and the amount applied is determined according to the area of ​​the sealing shoulder C and the required sealing thickness. After application, the adhesive 6 is distributed in a continuous ring shape, and its edge generally does not exceed the range of the eighth end face c1 of the sealing shoulder C.

[0092] A concave step D is provided on the outer side of the rib A of the cover plate 4. This concave step D includes a seventh end face b3 that is perpendicular to the first end face k1 and inclined and concave on one side. The fifth end face b1 is a vertical sidewall protruding upwards from the reference plane of the cover plate 4, with a width H, satisfying H≤15mm. The seventh end face b3 is connected to the fifth end face b1 and is an inclined and inwardly concave surface. An angle α is formed between the seventh end face b3 and the first end face k1 of the housing 5, satisfying 0°≤α≤60°. In this preferred embodiment, α is selected as 45 degrees to achieve the best balance between guiding effect and manufacturing feasibility. The concave characteristic of the seventh end face b3 refers to its inward curvature relative to the outer surface of the rib A, forming a concave surface similar to an arc or a slope.

[0093] The main body of the rib A includes a third end face m1, a first concave arc surface r1, a fourth end face a1, and a second convex arc surface r2. The third end face m1 is located at the outermost root of the rib A and is approximately parallel to the plane of the cover plate 4. The first concave arc surface r1 connects the third end face m1 and the fourth end face a1; it is an inwardly concave arc surface, the radius of which is determined according to design requirements. The fourth end face a1 is located at the top of the rib A and is approximately parallel to the plane of the cover plate 4. The second convex arc surface r2 connects the fourth end face a1 and the inner body of the rib A; it is an outwardly convex arc surface.

[0094] The height S1 of the convex rib A satisfies 0mm < (S1-H) ≤ 10mm. In this preferred embodiment, S1-H = 5mm is selected, meaning the top of the convex rib A is 5mm higher than the top of the fifth end face b1 of the concave step D. The height S2 of the concave step D (i.e., the vertical distance from the reference plane of the cover plate 4 to the connection between the seventh end face b3 and the fifth end face b1) satisfies 0mm ≤ S2 ≤ 0.9H. In this preferred embodiment, S2 = 0.7H is selected to ensure that the concave step D has sufficient guiding effect.

[0095] In the initial state, the cover plate 4 is not yet pressed tightly, and there is a certain distance between the rib A and the sealing shoulder C. At this time, the adhesive 6 is freely distributed on the eighth end face c1 of the sealing shoulder C.

[0096] Please see Figure 7When the cover plate 4 is pressed down by the bolt 1, the cover plate 4 gradually approaches the housing 5. During this process, the first concave arc surface r1 of the rib A first contacts and squeezes the adhesive 6 on the sealing shoulder C. As the cover plate 4 continues to be pressed down, the adhesive 6 is squeezed into the space formed by the first concave arc surface r1, the fourth end face a1, the second convex arc surface r2 of the rib A, and the eighth end face c1 and the ninth end face c2 of the sealing shoulder C. This space is the first sealing cavity 11. In this preferred embodiment, due to the use of the concave step D structure, the cross section of the first sealing cavity 11 is constructed as a right trapezoid. Specifically, the right trapezoid is formed by the fourth end face a1, the second convex arc surface r2, the ninth end face c2, and the seventh end face b3, wherein the seventh end face b3 forms the hypotenuse of the right trapezoid, which faces inward.

[0097] After being compressed, the adhesive 6 preferentially fills the first sealing cavity 11. Since the cross-section of the first sealing cavity 11 is a right trapezoid with the hypotenuse facing inward, the adhesive 6 is subjected to an inward component force during the compression process, causing it to flow inward. At the same time, the inclined seventh end face b3 of the concave step D also guides the adhesive 6 to flow inward.

[0098] Once the first sealing cavity 11 is filled, excess adhesive 6 begins to overflow from the first sealing cavity 11. There are two overflow directions: one is towards the outside of the sealing shoulder C, and the other is towards the inside of the sealing shoulder C.

[0099] The adhesive 6 flowing towards the outside of the sealing shoulder C enters the first gap g1 between the third end face m1 of the cover plate 4 and the first end face k1 of the housing 5. As the cover plate 4 is pressed further down, this portion of adhesive 6 is squeezed by the third end face m1 and the first end face k1, forming the first narrow slit seal 12. Due to the small size of the first gap g1, the thickness and width of the first narrow slit seal 12 are both small.

[0100] The adhesive 6 flowing towards the inner side of the sealing shoulder C enters the second gap g2 between the fourth end face a1 of the cover plate 4 and the second end face k2 of the housing 5. Simultaneously, a space is also formed between the seventh end face b3 of the concave step D and the eighth end face c1 of the sealing shoulder C, which communicates with the second gap g2. Due to the guiding effect of the concave step D and the fact that the second gap g2 is larger than the first gap g1, more adhesive 6 flows inward. This portion of adhesive 6 is squeezed by the fourth end face a1 and the second end face k2, forming the second narrow slit seal 13. Because the second gap g2 is larger and the flow path is smoother, the thickness and width of the second narrow slit seal 13 are both greater than the thickness and width of the first narrow slit seal 12.

[0101] When the cover plate 4 is pressed down to its final position (i.e., the bolt 1 is tightened in place), the first sealing cavity 11 is completely filled with adhesive 6, and the first narrow slit sealing part 12 and the second narrow slit sealing part 13 also form a stable sealing layer. At this time, the first gap g1 is always smaller than the second gap g2, and the volume of the second narrow slit sealing part 13 is larger than the volume of the first narrow slit sealing part 12.

[0102] At this point, the sealing structure is fully formed. This sealing structure has three lines of defense: the first is the adhesive 6 located in the first sealing cavity 11 between the top of the rib A and the sealing shoulder C, which is the main seal; the second is the first narrow slit seal 12 located on the outside, which is an auxiliary seal and also serves to prevent external impurities from entering the first sealing cavity 11; the third is the second narrow slit seal 13 located on the inside, which is also an auxiliary seal, but because of its larger size, it has stronger sealing ability and durability.

[0103] In this preferred embodiment, the cover plate 4 is screwed to the housing 5 by bolts 1. This connection method facilitates the removal of the cover plate 4 when the controller 2 needs to be maintained in the future. During disassembly, simply unscrewing the bolts 1 allows the cover plate 4 to be removed from the housing 5. Because the adhesive 6 has a certain degree of elasticity, the sealing layer may be damaged during disassembly, but the structure of the cover plate 4 and the housing 5 will not be damaged. If reassembly is required, simply remove the old adhesive 6, apply new adhesive 6, and re-tighten it according to the above process.

[0104] The technical advantages of this preferred embodiment are summarized as follows: First, it achieves a sealed design that does not expand the overall machine boundary. Compared with existing technologies that require sealing grooves in the housing, this invention only requires a raised sealing shoulder C on the housing 5. The height of the sealing shoulder C is very small, and it does not require increasing the overall wall thickness of the housing 5. Therefore, the external dimensions of the compressor do not increase, which is beneficial for its arrangement in limited vehicle interior space.

[0105] Secondly, precise flow control of the adhesive 6 was achieved. By setting the mating structure of the rib A and the sealing shoulder C, and especially by setting the concave step D and the first sealing cavity 11 with a right-angled trapezoidal cross-section, the adhesive 6 preferentially flows inward (towards the inside of the compressor) during extrusion. This reduces the amount of adhesive 6 overflowing outward, preventing it from affecting the appearance of the cover plate 4 and the installation of the bolts 1. Simultaneously, more adhesive 6 is retained in the sealing area, improving material utilization.

[0106] Third, multiple sealing lines are formed. The adhesive 6 in the first sealing cavity 11 forms the main seal, while the first narrow slit seal 12 and the second narrow slit seal 13 form auxiliary seals. Even if one seal fails, the other sealing structures can still ensure the overall sealing effect. In particular, the second narrow slit seal 13 has a larger volume, which can form a thicker and more continuous sealing layer inside the sealing shoulder C, significantly improving the reliability and durability of the seal.

[0107] Fourth, it improves the fault tolerance of the seal. Because the second narrow slit seal 13 is both thicker and wider, even if the adhesive 6 undergoes slight aging, shrinkage, or creep due to long-term operation, the thicker sealing layer can still maintain effective sealing contact. At the same time, the wider sealing layer also increases the length and curvature of the leakage path, further improving the sealing effect.

[0108] Fifth, it reduces manufacturing costs. The sealing structure of this invention can be formed in one step on the cover plate 4 using a stamping process, with the raised rib A and the recessed step D forming the structure in one piece, without the need for additional parts or machining steps. The sealing shoulder C on the housing 5 can also be formed during casting or machining. Compared with the prior art, which requires machining sealing grooves on the housing and sealing ribs on the cover plate, the manufacturing process of this invention is simpler and less expensive.

[0109] Sixth, it provides flexible connection options. The sealing structure of this invention is compatible with various connection methods such as screwing, welding, and bonding. Designers can choose the most suitable connection method according to the specific application requirements of the compressor without affecting the sealing function.

[0110] In summary, the compressor sealing structure of this invention successfully resolves the long-standing contradiction between "sealing effect" and "overall size" in existing technologies. Through innovative structural design, it achieves precise control over the flow and distribution of the adhesive without expanding the overall compressor dimensions, forming multiple reliable sealing lines. This significantly improves the compressor's sealing performance and reliability while reducing manufacturing costs. This technical solution is a highly competitive core technology for next-generation new energy vehicle air conditioning systems.

[0111] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A compressor, characterized in that, include: The housing (5) has a sealing shoulder (C) for applying adhesive (6) around the edge of the opening of the housing (5), and a first end face (k1) and a second end face (k2) are formed on the outer and inner sides of the sealing shoulder (C), respectively. Cover plate (4), the edge of which is provided with a raised rib (A) facing the housing (5); When the cover plate (4) presses against the opening of the housing (5), the adhesive (6) squeezed by the rib (A) fills the first sealing cavity (11) formed by the rib (A) and the sealing shoulder (C), and overflows to the outside and inside of the sealing shoulder (C) respectively to form the first narrow slit sealing part (12) and the second narrow slit sealing part (13). The first gap (g1) between the rib (A) and the first end face (k1) is always smaller than the second gap (g2) between the rib (A) and the second end face (k2). The volume of the second narrow slit sealing part (13) is larger than the volume of the first narrow slit sealing part (12).

2. The compressor according to claim 1, characterized in that, The cross-sectional shape of the rib (A) is one of U-shaped, V-shaped or hemispherical.

3. The compressor according to claim 1, characterized in that, The outer side of the rib (A) has a third end face (m1), a first concave arc surface (r1), a fourth end face (a1) and a second convex arc surface (r2) in sequence, and the first concave arc surface (r1) squeezes the adhesive (6). During the pressing down of the cover plate (4), the adhesive (6) that overflows from the outside of the sealing shoulder (C) is squeezed by the third end face (m1) and the first end face (k1) to form the first narrow slit sealing part (12). The adhesive (6) overflowing from the inner side of the sealing shoulder (C) is squeezed by the fourth end face (a1) and the second end face (k2) to form a second narrow slit seal (13). The adhesive (6) is one or more of hot melt butyl glue, heat-reactive polyurethane hot melt glue, epoxy resin glue or neutral curing silicone glue.

4. The compressor according to claim 3, characterized in that, The first sealing cavity (11) has a quarter circle cross section, and the thickness and width of the second narrow slit sealing part (13) are both greater than the thickness and width of the first narrow slit sealing part (12).

5. The compressor according to claim 1, characterized in that, The outer side of the rib (A) has a step (B) protruding. The step (B) includes a fifth end face (b1) perpendicular to the first end face (k1) and a sixth end face (b2) parallel to the first end face (k1). The width H of the fifth end face (b1) satisfies H≤15mm, and the width W of the sixth end face (b2) satisfies W≤10mm and W≤H.

6. The compressor according to claim 5, characterized in that, The height S1 of the rib (A) satisfies 0mm < (S1-H) ≤ 10mm, and the height S2 of the step (B) satisfies 0mm ≤ S2 ≤ 0.9H.

7. The compressor according to claim 6, characterized in that, The first sealing cavity (11) has a rectangular cross-section, and the thickness and width of the second narrow slit sealing part (13) are both greater than the thickness and width of the first narrow slit sealing part (12).

8. The compressor according to claim 1, characterized in that, The outer side of the rib (A) has a concave step (D). The concave step (D) includes a fifth end face (b1) perpendicular to the first end face (k1) and a seventh end face (b3) that is inclined and concave on one side. The seventh end face (b3) and the first end face (k1) of the shell (5) form an angle α, which satisfies 0°≤α≤60°.

9. The compressor according to claim 8, characterized in that, The first sealing cavity (11) has a right-angled trapezoidal cross section. The thickness and width of the second narrow slit sealing part (13) are both greater than the thickness and width of the first narrow slit sealing part (12). The hypotenuse of the right-angled trapezoid faces the second gap (g2).

10. The compressor according to claim 1, characterized in that, The cover plate (4) is connected to the opening of the housing (5) by welding, bonding or screwing.

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