Structure for fixing cooling fan and inverter with same

Abstract

The utility model provides a kind of structure of fixed cooling fan and inverter with it, including first shell, second shell and cooling fan, first shell is provided with positioning part and first fixing part, second shell is provided with the cooperation part of corresponding cooperation with positioning part, and the second fixing part of corresponding cooperation with first fixing part;Positioning part and cooperation part are inserted or clamped, to make first shell and second shell can be detachably mutually engaged cover;First fixing part and second fixing part are oppositely arranged;The protruding direction of first fixing part and second fixing part is parallel to the cover direction of first shell and second shell;When first shell and second shell cover, corresponding first fixing part and second fixing part and cooling fan are mutually embedded and abut, to make cooling fan be fixed in the accommodation space formed by first fixing part and second fixing part;Cooling fan air inlet face or air outlet face is opposite first shell and second shell joint side, and it is provided with air hole in corresponding first shell or second shell joint side.

Description

Technical Field

[0001] This utility model belongs to the technical field of inverter cooling fan installation, specifically relating to a structure for fixing a cooling fan and an inverter having the same structure. Background Technology

[0002] An inverter is a converter that converts direct current into direct current. It is mainly used in various electronic devices and features good safety performance, high conversion efficiency, fast start-up, strong load adaptability and stability. It is currently widely used in office equipment, household appliances and other scenarios.

[0003] Inverters generate a lot of heat during use, which affects their lifespan. Therefore, in order to prevent the equipment from overheating, it is necessary to install a corresponding heat dissipation structure. Most existing heat dissipation structures are air-cooled, which means using a cooling fan to dissipate heat from the inverter. During installation, the cooling fan is usually fixed inside the inverter using a separately designed mounting bracket or adapter plate structure to ensure that the cooling fan can operate stably.

[0004] However, the existing internal cooling fan installation structure of inverters has significant drawbacks. For example, when connecting the cooling fan to the mounting bracket or adapter plate, it is currently fixed mechanically, specifically by four bolts or sheet metal screws to the inverter enclosure or mounting bracket. The installation requires manual or automated assembly line operation to tighten the bolts. This fixing method also requires a large space for bolt fixing, which greatly increases machine cost and assembly difficulty. The process is complex and not conducive to automated assembly line operation. Moreover, subsequent maintenance and replacement of the cooling fan is quite troublesome.

[0005] Therefore, it is necessary to design a cooling fan mounting structure that does not require bolts, is easy to install, and saves costs. Summary of the Invention

[0006] The purpose of this invention is to solve the problem that fixing cooling fans with bolts in the prior art greatly increases machine costs and assembly difficulty. Therefore, this invention provides a structure for fixing a cooling fan and an inverter incorporating it.

[0007] To achieve the above objectives, the present invention proposes the following technical solution: A structure for a fixed cooling fan and an inverter having the same are disclosed, comprising a first housing, a second housing, and a cooling fan. The first housing is provided with a positioning part and a first fixing member. The second housing is provided with a mating part corresponding to the positioning part and a second fixing member corresponding to the first fixing member. The positioning part and the mating part are inserted or engaged to allow the first housing and the second housing to be detachably joined together. The first fixing member and the second fixing member are disposed opposite to each other; the protruding direction of the first fixing member and the second fixing member is parallel to the closing direction of the first housing and the second housing; When the first housing and the second housing are closed, the corresponding first fixing member and the second fixing member are engaged and abutted against the cooling fan, so that the cooling fan is fixed in the accommodating space formed by the first fixing member and the second fixing member; The air inlet or outlet surface of the cooling fan faces the joint side of the first housing and the second housing, and a vent is provided on the corresponding joint side of the first housing or the second housing.

[0008] Furthermore, the first fixing member includes a first supporting part and a first limiting part; The first support portion is disposed adjacent to the positioning portion and close to the joint side of the first housing and the second housing; the first limiting portion is symmetrically disposed at both ends of the first support portion; The second fastener includes a second support portion and a second limiting portion; The second support portion is disposed adjacent to the mating portion and close to the joint side of the second housing and the first housing; the second limiting portion is symmetrically disposed at both ends of the second support portion; The cooling fan abuts against the first support and the second support respectively on its two opposite sides, and the upper and lower ends of the opposite sides adjacent to the cooling fan are respectively accommodated in the limiting space formed by the first limiting part and the second limiting part.

[0009] Furthermore, the first limiting part includes a first clamping part and a second clamping part that are parallel to each other and perpendicularly connected to each other. One side of the cooling fan contacts the first support portion, and the two sides adjacent to one side of the cooling fan are accommodated in the clamping space formed by the first clamping portion and the second clamping portion. By adapting to the first clamping portion and the second clamping portion respectively, the movement of the cooling fan is restricted.

[0010] Furthermore, the second limiting portion includes a first extension and a second extension that are parallel to each other and perpendicularly connected to each other. The other side of the cooling fan contacts the second support portion, and the two sides adjacent to the other side of the cooling fan are accommodated in the clamping space formed by the first extension portion and the second extension portion. By adapting to the first extension portion and the second extension portion respectively, the movement of the cooling fan is restricted.

[0011] Furthermore, the ends of the second extensions on the symmetrically arranged second limiting portions that are opposite each other and away from the first extension portion are connected to each other, so that the oppositely arranged second extensions are engaged with the side of the cooling fan away from the vent.

[0012] Furthermore, the second extension is provided with a cable avoidance structure to provide a channel for the cable of the cooling fan.

[0013] Furthermore, the first support portion includes a first protruding structure in the direction from the first housing toward the second housing, the first protruding structure including a first hollow portion and a first rib portion surrounding the first hollow portion; The second support portion includes a second protruding structure in the direction from the second housing toward the first housing, the second protruding structure including a second hollow portion and a second rib portion surrounding the second hollow portion; The first and second rib sections are arranged in a cross pattern to form a grid-like support structure.

[0014] Furthermore, the positioning part includes a positioning post extending from the first housing towards the second housing; the mating part includes a sleeve extending from the second housing towards the first housing. The sleeve can accommodate the insertion of the positioning pin to achieve the engagement and fixation of the positioning part and the mating part.

[0015] Furthermore, it also includes a locking component, wherein the positioning post has a first through hole at one end facing the second housing and extending along the direction of the positioning portion; and the sleeve has a second through hole at one end facing the first housing and extending along the direction of the mating portion. After the positioning pin is inserted into the sleeve, the locking member passes through the second through hole and the first through hole sequentially from the side of the second housing away from the first housing, so as to fix the positioning part and the mating part together.

[0016] An inverter includes the cooling fan and an inverter body. The inverter includes the structure of the fixed cooling fan described above. The inverter body is housed inside a box formed by the first housing and the second housing.

[0017] The beneficial effects of this utility model are: (1) This utility model sets the first fixing member and the second fixing member for fixing the cooling fan in the first housing and the second housing respectively, and fixes the cooling fan in the accommodating space formed by the fixing member and the housing by closing the first housing and the second housing. This avoids the use of the fixing screw hole of the cooling fan in the prior art, reduces the mold production cost, eliminates the fixing of the cooling fan bolt, simplifies the assembly structure and process, improves the assembly efficiency, optimizes the appearance of the equipment, and facilitates disassembly and maintenance.

[0018] (2) By providing cable through holes on the corresponding structure of the second fixing member, the cable of the cooling fan can be directly and nearby through the housing space of the fixed cooling fan without having to go around from other spaces. On the one hand, it makes the cable routing more orderly and avoids the messy accumulation of cables in the housing, which would make subsequent disassembly and maintenance difficult. On the other hand, it avoids the risk of the cable being clamped or squeezed between the cooling fan and other components in the housing, or being rolled into the cooling fan impeller, thus improving the overall safety and reliability. Furthermore, it provides a clear and smooth exit for the cable, preventing damage to the connection point between the cable and the cooling fan due to pulling, which would affect the normal operation of the cooling fan.

[0019] (3) By setting up a grid-like support part, the intersecting ribs form support points that contact the side of the cooling fan, thereby minimizing the amount of material used and reducing manufacturing costs while ensuring sufficient support strength. On the other hand, the large number of hollow parts greatly increases the contact area between the cooling fan and the air, forming an effective heat dissipation channel and improving the overall heat dissipation efficiency. Furthermore, the reinforcing ribs of the grid structure can disperse the vibration and load from the cooling fan, avoiding direct contact between the opposite sides of the cooling fan and the upper and lower shells, which could lead to local deformation of the shell or affect the positioning and operation of the cooling fan.

[0020] (4) This utility model positions and fixes the first and second housings by setting a positioning part and a mating part. Specifically, the positioning part is set as a positioning post and the corresponding mating part is set as a sleeve. Then, the fastening is achieved through the through hole and the locking part. On the one hand, the positioning effect and accuracy of the positioning post and the sleeve are higher than those of conventional buckles or positioning post-positioning hole structures. On the other hand, the positioning function and the fastening function are integrated on the same axis through the locking part. The positioning is first achieved through the positioning post and the sleeve, and then the fastening function is achieved through the through hole and the locking part, which makes the assembly process simpler and more stable. At the same time, it saves space, simplifies the structural design, and is conducive to industrial automated production assembly.

[0021] (5) This utility model achieves an integrated assembly of the cooling fan and the inverter body by fixing the cooling fan and the inverter body together in the box formed by the first housing and the second housing. This is conducive to industrialized unified assembly. The inverter box is easy to carry, transport, move or connect with external equipment through the outer shell, and adapts to the usage needs of the inverter in specific scenarios.

[0022] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered as part of the utility model subject matter of this disclosure, provided that such concepts do not contradict each other.

[0023] The foregoing and other aspects, embodiments, and features of the present invention will be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as features and / or beneficial effects of exemplary embodiments, will become apparent from the following description or may be learned through practice of specific embodiments according to the teachings of the present invention. Attached Figure Description

[0024] The accompanying drawings are not drawn to scale according to a true reference numeral. In the drawings, each identical or nearly identical component shown in the various figures can be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings. The embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained from the following drawings without inventive effort: Figure 1 This is a side view of the fixed cooling fan structure in an embodiment of this utility model; Figure 2 This is a cross-sectional schematic diagram of the fixed cooling fan structure in an embodiment of this utility model; Figure 3 This is a detailed schematic diagram of the fixed cooling fan structure in an embodiment of this utility model; Figure 4 This is a top view of the first housing in an embodiment of this utility model; Figure 5 This is a top view of the second housing in an embodiment of this utility model; Figure 6 This is a detailed bottom view of the second housing in an embodiment of this utility model.

[0025] Legend: 1. First housing; 11. Positioning part; 12. First fixing part; 13. First support part; 131. First hollow part; 132. First rib part; 14. First limiting part; 141. First clamping part; 142. Second clamping part; 15. First through hole; 2. Second housing; 21. Mating part; 22. Second fixing part; 23. Second support part; 231. Second hollow part; 232. Second rib part; 24. Second limiting part; 241. First extension part; 242. Second extension part; 243. Cable through hole; 25. Second through hole; 26. Vent hole; 3. Cooling fan. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.

[0027] The terms "first," "second," and similar words used in this utility model patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] See attached document Figure 1 As shown, this utility model provides a structure for fixing a cooling fan, including a first housing 1, a second housing 2, and a cooling fan 3.

[0029] See attached document Figure 2As shown, a plurality of positioning parts 11 are provided at the edge of the first housing 1, and at least one first fixing member 12 is provided on the side of the first housing 1 facing the second housing 2. The protruding direction of the first fixing member 12 is parallel to the closing direction of the first housing 1 and the second housing 2.

[0030] The first fixing member 12 includes a first support portion 13 and a first limiting portion 14.

[0031] The first support portion 13 is located adjacent to the positioning portion 11 and close to the joint side of the first housing 1 and the second housing 2; the first limiting portion 14 is symmetrically arranged at both ends of the first support portion 13.

[0032] The edge of the second housing 2 is provided with a plurality of mating parts 21 that correspond to and cooperate with the positioning part 11. The side of the second housing 2 facing the first housing 1 is provided with at least one second fixing member 22 that corresponds to the first fixing member 12. The protruding direction of the second fixing member 22 is parallel to the closing direction of the first housing 1 and the second housing 2.

[0033] The second fastener 22 includes a second support portion 23 and a second limiting portion 24.

[0034] The second support portion 23 is located adjacent to the mating portion 21 and close to the side where the second housing 2 and the first housing 1 meet; the second limiting portion 24 is symmetrically arranged at both ends of the second support portion 23.

[0035] The number of corresponding first fixing parts 12 and second fixing parts 22 can be set according to actual needs. If multiple cooling fans 3 need to be fixed, the corresponding first fixing parts 12 and second fixing parts 22 can be set in the same direction.

[0036] See attached document Figure 3 As shown, the first limiting part 14 includes a first clamping part 141 and a second clamping part 142 that are parallel to each other and perpendicularly connected to each other.

[0037] One side of the cooling fan 3 contacts the first support part 13, and the two sides adjacent to one side of the cooling fan 3 are accommodated in the clamping space formed by the first clamping part 141 and the second clamping part 142. By adapting to the first clamping part 141 and the second clamping part 142 respectively, the installation position of one end of the cooling fan 3 is fixed and its movement is restricted.

[0038] The second limiting part 24 includes a first extension 241 and a second extension 242 that are parallel to each other and perpendicularly connected to each other.

[0039] The other side of the cooling fan 3 contacts the second support 23. The two sides adjacent to the other side of the cooling fan 3 are accommodated in the clamping space formed by the first extension 241 and the second extension 242. By adapting to the first extension 241 and the second extension 242 respectively, the installation position of the other end of the cooling fan 3 is fixed and its movement is restricted.

[0040] The ends of the second extensions 242 on the symmetrically arranged second limiting portions 24, which are away from the first extensions 241, are connected to each other, so that the oppositely arranged second extensions 242 are engaged with the air outlet or air inlet of the cooling fan 3. The other side of the corresponding cooling fan, that is, the air inlet or air outlet, is directly facing the joint side of the first housing 1 and the second housing 2, and a vent 26 is provided on the joint side of the corresponding second housing 2 for heat dissipation.

[0041] In some alternative embodiments, the vent 26 may be provided on the side of the first housing 1.

[0042] The installation direction of the cooling fan 3 can be set according to actual needs, so that the air inlet or air outlet faces the housing surface where the vent 26 is located, to achieve the corresponding requirements.

[0043] In the above structure, the second extensions 242 arranged opposite to each other are connected, which is beneficial for the initial positioning of the cooling fan 3 during installation, and also enhances the fixing effect of the corresponding ends.

[0044] The second extension 242 is provided with a cable avoidance structure to provide a channel for the cable of the cooling fan 3.

[0045] Specifically, a cable through hole 243 is provided on the top edge of the second extension 242 away from the second housing 2, so that the power cable, signal cable and other cables of the cooling fan 3 can be led out through the cable through hole 243 from the clamping space formed by the first extension 241 and the second extension 242.

[0046] In some alternative embodiments, the cable avoidance structure is not limited to the cable through hole 243, but can also be set as any structure that allows the cable to pass through, such as a U-shaped notch or a groove.

[0047] The above structure allows the cable of the cooling fan 3 to pass directly and nearby from the housing space of the fixed cooling fan 3, without having to detour through other spaces. On the one hand, this makes the cable routing more neat and orderly, avoiding the messy accumulation of cables inside the housing, which would make subsequent disassembly and maintenance difficult. On the other hand, it avoids the risk of the cable being clamped or squeezed between the cooling fan 3 and other components inside the housing, or being caught between the impellers of the cooling fan 3, thus improving overall safety and reliability. Finally, it provides a clear and smooth exit for the cable, preventing damage to the connection point between the cable and the cooling fan 3 due to pulling, which would affect the normal operation of the cooling fan 3.

[0048] See attached document Figure 4 As shown, the first support portion 13 includes a first protruding structure in the direction from the first housing 1 toward the second housing 2, specifically including a first hollow portion 131 and a first rib portion 132 surrounding the first hollow portion 131.

[0049] See attached document Figure 5 As shown, the second support portion 23 includes a second protruding structure in the direction from the second housing 2 toward the first housing 1, specifically including a second hollow portion 231 and a second rib portion 232 surrounding the second hollow portion 231.

[0050] The first rib section 132 and the second rib section 232 are arranged in a cross pattern to form a grid-like support structure.

[0051] Specifically, both the first rib section 132 and the second rib section 232 include several parallel reinforcing ribs that intersect each other perpendicularly, forming a grid-shaped support structure.

[0052] The first support part 13 and the second support part 23 are both raised grid-shaped support frames, which are integrally formed by multiple mutually perpendicular reinforcing ribs. The areas between the reinforcing ribs form the first hollow part 131 and the second hollow part 231, respectively.

[0053] In some alternative embodiments, the grid-like support structure can take the form of various grid types, such as orthogonal, oblique, and radial grids.

[0054] In the above structure, on the one hand, the first rib portion 132 and the second rib portion 232 that intersect each other constitute support points that contact the side of the cooling fan 3, thereby minimizing the amount of material used and reducing manufacturing costs while ensuring sufficient support strength; on the other hand, the large number of hollow portions greatly increases the contact area between the cooling fan 3 and the air, forming an effective heat dissipation channel and improving the overall heat dissipation efficiency; finally, the reinforcing ribs of the mesh structure can disperse the vibration and load from the cooling fan 3, avoiding direct contact between the opposite sides of the cooling fan 3 and the upper shell 1 and the lower shell 2, which could lead to local deformation of the shell or affect the positioning and operation of the cooling fan 3.

[0055] See attached document Figure 6 As shown, the positioning part 11 includes a positioning post extending from the first housing 1 to the second housing 2, and the mating part 21 includes a sleeve extending from the second housing 2 to the first housing 1.

[0056] The positioning post has a first through hole 15 at one end facing the second housing 2 and extending along the positioning part 11; the sleeve has a second through hole 25 at one end facing the first housing 1 and extending along the mating part 21.

[0057] The sleeve can accommodate the insertion of the positioning pin. After the positioning pin is inserted into the sleeve, the locking member passes through the second through hole 25 and the first through hole 15 in sequence from the side of the second housing 2 away from the first housing 1, so that the positioning part 11 and the mating part 21 are fixedly connected, thereby closing and fixing the first housing 1 and the second housing 2.

[0058] To ensure the positioning effect, the positioning part 11 and the mating part 21 are arranged in four groups, respectively located at the four corner edges of the shell, to ensure the accommodating space inside the upper and lower shells.

[0059] Specifically, the first through hole 15 can be configured as a screw hole, the second through hole 25 can be configured as a smooth hole, and the locking component includes a screw.

[0060] In the above structure, on the one hand, the positioning effect and accuracy of the positioning post and sleeve are higher than those of conventional snap-fit ​​or positioning post-positioning hole structures; on the other hand, the positioning function and fastening function are integrated on the same axis through the locking component. The positioning post and sleeve are used to achieve pre-positioning first, and the through hole and locking component are used to achieve fastening function, which makes the assembly process simpler and more stable, while saving space, simplifying the structural design, and facilitating industrial automated production assembly.

[0061] In some alternative embodiments, the sleeve is configured as a blind hole structure, including an axial sidewall and a bottom wall, wherein the end face of the positioning post contacts the bottom wall during installation, and the second through hole 25 penetrates the bottom wall axially.

[0062] Specifically, the depth of the sleeve is less than the thickness of the second housing 2 in the sleeve region. When the positioning pin is inserted into the sleeve, the end of the positioning pin abuts against the bottom wall to limit the insertion depth of the positioning pin. The second housing 2 forms an inwardly recessed portion corresponding to the bottom area of ​​the sleeve.

[0063] In the above structure, on the one hand, by setting a bottom wall in the sleeve, the depth of the positioning pin inserted into the sleeve is precisely controlled, avoiding incomplete insertion and ensuring assembly accuracy and consistency; on the other hand, the bottom wall of the blind hole structure enhances the local compressive strength of the bottom of the sleeve, so that it will not deform or crack when subjected to the pressure of screw tightening, thus affecting the assembly effect; finally, after the assembly is completed, the head of the locking part is sunk into the recessed part of the edge of the second housing 2, making the entire housing shell flatter and more aesthetically pleasing, while also preventing the protruding screw head installed on the outside of the housing from being scratched and causing inconvenience.

[0064] The specific mechanism by which the above-mentioned structure fixes the cooling fan 3 is as follows: First, insert the cooling fan 3 into the clamping space formed by the second support part 23, the first extension part 241 and the second extension part 242 provided on the second housing 2, so that its bottom surface contacts the support structure of the second support part 23, and the adjacent two sides abut against the first extension part 241 provided opposite to it. At the same time, its cable is passed out through the cable through hole 243 provided on the upper edge of the second extension part 242. The air inlet or air outlet surface of the cooling fan 3 faces the vent 26 on the side of the second housing 2, and its corresponding other side contacts the second extension part 242 that is connected to it, thereby fixing one end of the cooling fan 3 in the enclosure space formed by the second fixing member 22.

[0065] Then, the positioning pin of the first housing 1 is inserted downward into the sleeve on the second housing 2. At the same time, the first support part 13 slides down along the other side where the cooling fan 3 is disconnected from the second support part 23, and the first clamping part 141 slides down along the two sides where the cooling fan 3 and the first extension part 241 abut against each other, until the first clamping part 142 and the second extension part 242 contact the same side of the cooling fan 3, thereby fixing the other end of the cooling fan 3 in the enclosure space formed by the first fixing member 12, and then fixing and pressing the cooling fan 3 in the accommodating space formed by the first fixing member 12 and the second fixing member 22. At this time, the distance between the corresponding protruding ends of the first support part 13 and the second support part 23 is equal to the distance between the corresponding two sides of the cooling fan 3. At this time, the first housing 1 and the second housing 2 have completed the pre-positioning.

[0066] Finally, screws are passed through the second through hole 25 and the first through hole 15 from the side of the sleeve away from the positioning post and tightened to prevent the positioning post from coming out, thus completing the fixing and closing of the first housing 1 and the second housing 2.

[0067] The above solution uses corresponding fasteners to fix the cooling fan 3 inside the inverter housing, eliminating the need for additional fixing through the mounting holes and screws of the cooling fan 3. This makes assembly, maintenance, and component replacement easier.

[0068] This utility model also provides an inverter, including a cooling fan 3 and an inverter body. The inverter includes the structure of fixing the cooling fan 3 as described above. The inverter body is housed inside a box formed by the first housing 1 and the second housing 2. That is, the inverter body and the cooling fan 3 are set together inside the box formed by the first housing 1 and the second housing 2 to form an integrated inverter, which is convenient to carry, transport, move or use with external equipment through the outer shell.

[0069] The interior of the box, which is composed of the first shell 1 and the second shell 2, can also accommodate other necessary components according to actual needs.

[0070] To ensure that the first housing 1 and the second housing 2 can accommodate the weight of the components inside the housing, reinforcing ribs are provided on the outside of the first housing 1 and the second housing 2 to increase the strength and support of the housing.

[0071] The inverter itself uses common inverter equipment in this field, and its specifications and performance can be set according to requirements, which will not be elaborated here.

[0072] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. Technical details not described in detail in this utility model can all be implemented by any existing technology in the art. In particular, all technical features not described in detail in this utility model can be implemented by any existing technology.

Claims

1. A structure for a fixed cooling fan, characterized in that, It includes a first housing, a second housing, and a cooling fan. The first housing is provided with a positioning part and a first fixing member. The second housing is provided with a mating part that corresponds to and cooperates with the positioning part, and a second fixing member that corresponds to and cooperates with the first fixing member. The positioning part and the mating part are inserted or engaged to allow the first housing and the second housing to be detachably joined together. The first fixing member and the second fixing member are disposed opposite to each other; the protruding direction of the first fixing member and the second fixing member is parallel to the closing direction of the first housing and the second housing; When the first housing and the second housing are closed, the corresponding first fixing member and the second fixing member are engaged and abutted against the cooling fan, so that the cooling fan is fixed in the accommodating space formed by the first fixing member and the second fixing member; The air inlet or outlet surface of the cooling fan faces the joint side of the first housing and the second housing, and a vent is provided on the corresponding joint side of the first housing or the second housing.

2. The structure of a fixed cooling fan according to claim 1, characterized in that, The first fixing member includes a first supporting part and a first limiting part; The first support portion is disposed adjacent to the positioning portion and close to the joint side of the first housing and the second housing; the first limiting portion is symmetrically disposed at both ends of the first support portion; The second fastener includes a second support portion and a second limiting portion; The second support portion is disposed adjacent to the mating portion and close to the joint side of the second housing and the first housing; the second limiting portion is symmetrically disposed at both ends of the second support portion; The cooling fan abuts against the first support and the second support respectively on its two opposite sides, and the upper and lower ends of the opposite sides adjacent to the cooling fan are respectively accommodated in the limiting space formed by the first limiting part and the second limiting part.

3. The structure of a fixed cooling fan according to claim 2, characterized in that, The first limiting part includes a first clamping part and a second clamping part that are parallel to each other and perpendicularly connected to each other. One side of the cooling fan contacts the first support portion, and the two sides adjacent to one side of the cooling fan are accommodated in the clamping space formed by the first clamping portion and the second clamping portion. By adapting to the first clamping portion and the second clamping portion respectively, the movement of the cooling fan is restricted.

4. The structure of a fixed cooling fan according to claim 3, characterized in that, The second limiting portion includes a first extension and a second extension that are parallel to each other and perpendicularly connected to each other. The other side of the cooling fan contacts the second support portion, and the two sides adjacent to the other side of the cooling fan are accommodated in the clamping space formed by the first extension portion and the second extension portion. By adapting to the first extension portion and the second extension portion respectively, the movement of the cooling fan is restricted.

5. The structure of a fixed cooling fan according to claim 4, characterized in that, The ends of the second extensions on the symmetrically arranged second limiting portions, which are opposite each other and away from the first extension, are connected to each other, so that the oppositely arranged second extensions are engaged with the side of the cooling fan away from the vent.

6. The structure of a fixed cooling fan according to claim 5, characterized in that, The second extension is provided with a cable avoidance structure to provide a channel for the cable of the cooling fan.

7. The structure of a fixed cooling fan according to claim 2, characterized in that, The first support portion includes a first protruding structure in the direction from the first housing toward the second housing, the first protruding structure including a first hollow portion and a first rib portion surrounding the first hollow portion; The second support portion includes a second protruding structure in the direction from the second housing toward the first housing, the second protruding structure including a second hollow portion and a second rib portion surrounding the second hollow portion; The first and second rib sections are arranged in a cross pattern to form a grid-like support structure.

8. The structure of a fixed cooling fan according to claim 1, characterized in that, The positioning part includes a positioning post extending from the first housing towards the second housing; the mating part includes a sleeve extending from the second housing towards the first housing. The sleeve can accommodate the insertion of the positioning pin to achieve the engagement and fixation of the positioning part and the mating part.

9. The structure of a fixed cooling fan according to claim 8, characterized in that, It also includes a locking component, wherein the positioning post has a first through hole at one end facing the second housing and extending along the direction of the positioning portion; and the sleeve has a second through hole at one end facing the first housing and extending along the direction of the mating portion. After the positioning pin is inserted into the sleeve, the locking member passes through the second through hole and the first through hole sequentially from the side of the second housing away from the first housing, so as to fix the positioning part and the mating part together.

10. An inverter, comprising the cooling fan and an inverter body, characterized in that, The inverter includes the structure of a fixed cooling fan as described in any one of claims 1-9, and the inverter body is housed inside a box formed by the first housing and the second housing.

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