Pull-out fan assembly and power conversion structure

Abstract

The utility model discloses a kind of pull-out fan assemblies and electric power conversion structures, wherein pull-out fan assembly includes: fan unit, including support and the multiple fans of installation in support;Supporting piece, cooperate with fan unit, fan unit can slide relative to supporting piece;Wherein, support has first end and second end, first end and second end are two ends in the sliding direction of support, support is equipped with first limiting part, first limiting part is between first end and second end;Second limiting part is equipped on supporting piece and cooperates with first limiting part;Fan unit at least has the pull-out state when sliding relative to supporting piece along first direction, the rollback state when sliding relative to supporting piece along second direction, first direction is opposite with second direction;In pull-out state, second limiting part is located downstream of first limiting part, to make fan unit have when the locking position of first limiting part and second limiting part abut.

Description

Technical Field

[0001] This utility model belongs to the field of power electronic equipment technology, specifically relating to a pull-out fan assembly and a power conversion structure. Background Technology

[0002] Power conversion structures, such as inverters, generate a significant amount of heat during operation due to the presence of internal power semiconductor devices (e.g., IGBTs, MOSFETs). If this heat cannot be dissipated promptly, it can lead to decreased efficiency, shortened lifespan, equipment malfunction, and in extreme cases, even burn-out components. Therefore, active cooling fans are used to quickly remove heat from the inverter's interior, forming a highly efficient cooling system together with heat sinks to ensure the inverter operates within a safe temperature range.

[0003] Cooling fans are a common point of failure in inverters. Therefore, how to improve the fan structure in the power conversion structure to make it easier to maintain or replace has become an urgent problem to be solved. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to provide a pull-out fan assembly and a power conversion structure.

[0005] To solve the above technical problems, this utility model provides a pull-out fan assembly, comprising:

[0006] A fan unit, including a bracket and multiple fans mounted on the bracket;

[0007] The support component works in conjunction with the fan unit, allowing the fan unit to slide relative to the support component.

[0008] The bracket has a first end and a second end, which are two ends in the sliding direction of the bracket. The bracket is provided with a first limiting part, which is located between the first end and the second end.

[0009] The support member is provided with a second limiting part that cooperates with the first limiting part; the fan unit has at least a pull-out state when sliding relative to the support member in a first direction and a retracted state when sliding relative to the support member in a second direction, wherein the first direction and the second direction are opposite.

[0010] In the pulled-out state, the second limiting part is located downstream of the first limiting part, so that the fan unit has a locked position when the first limiting part and the second limiting part come into contact.

[0011] Optionally, in the pulled-out state, the first end of the bracket is located downstream of the second end, and the distance between the first limiting part and the first end is less than the distance between the first limiting part and the second end.

[0012] In the pulled-out state, the support member has at least a third end, which is distributed on the same side as the first end of the bracket, wherein the second limiting part is provided at the third end.

[0013] Optionally, the bracket also has a raised state when it moves along a third direction in response to an external force in the locked position, the third direction being perpendicular to the first direction and the second direction, wherein the raised height of the bracket is greater than or equal to the height of the second limiting part in the third direction.

[0014] Optionally, a third limiting part is provided above the bracket, which is infinitely close to the bracket but not in contact with it. The third limiting part is configured to restrict the degree of freedom of the bracket to move upward before the first limiting part and the second limiting part come into contact.

[0015] Optionally, the support includes a first support and a second support, which are distributed at a pair of opposite edges of the bracket. The first support and the second support are strip-shaped and extend along a first direction or a second direction. The first support and / or the second support are provided with a second limiting portion.

[0016] Optionally, the first support member includes at least a side plate and a bottom plate disposed at the bottom of the side plate, the side plate and the bottom plate forming a sliding groove, the first limiting part being located in the sliding groove, and a second limiting part being provided at one end of the bottom plate;

[0017] The first limiting part and the second limiting part are in the form of a sheet or a block.

[0018] Optionally, the first support member further includes a top plate disposed on the top of the side plate, and the bracket is provided with fins on the side facing the side plate. The fins are located between the first limiting part and the second end of the bracket, or the fins are located directly above the first limiting part. In the pulled-out state, the distance between the fins and the top plate in the third direction is greater than the height of the second limiting part in the third direction, wherein the third direction is perpendicular to the first direction and the second direction, and the top plate can limit the upper limit position of the first limiting part.

[0019] This utility model also provides a power conversion structure, including:

[0020] The box is hollow inside;

[0021] The pull-out fan assembly is located inside the hollow cavity of the cabinet;

[0022] Among them, the pull-out fan assembly is the pull-out fan assembly mentioned above, the support is fixed relative to the housing, the fan unit can slide relative to the housing, and the fan unit has a pull-out state that is at least partially exposed to the housing and a reset state that is housed in the housing.

[0023] Optionally, the first end of the bracket is provided with a panel unit, and the housing is provided with a through opening. When the fan unit is in the reset state, the panel unit covers the through opening.

[0024] The panel unit and the housing are detachably connected via a first connecting structure; and / or,

[0025] A positioning structure is provided between the bracket and the housing. The positioning structure includes a positioning pin and a positioning hole. In the reset state, the positioning pin can be inserted into the positioning hole. One of the positioning pin and the positioning hole is located on the bracket, and the other is located on the housing.

[0026] Optionally, it also includes: a wire harness storage compartment, located in the housing; the wire harness storage compartment and the fan unit share a panel unit;

[0027] The fan connector is located on the wall of the cable harness storage compartment.

[0028] The technical solution provided by this utility model has the following advantages:

[0029] 1. The pull-out fan assembly provided in this embodiment protects the fan assembly by setting a limiting structure in the pulling direction to prevent the fan from being forcibly pulled out, or from being damaged when the fan slides out under the influence of gravity due to the tilt of the device before the fan wiring harness is unplugged.

[0030] 2. The power conversion structure provided in this embodiment allows the fan assembly to be pulled out from the operation panel for easy maintenance and replacement. The fan assembly is equipped with a limiting structure (first limiting part and second limiting part), a guiding structure (third limiting part), and a feedback structure (fins) to indicate the timing of fan harness insertion and removal, preventing damage to the wiring harness and insertion / removal ports during fan unit installation and maintenance, thus reducing usage costs and maintenance difficulty. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 A structural diagram of a pull-out fan assembly provided in an embodiment of this utility model;

[0033] Figure 2 A structural diagram of a bracket in a pull-out fan assembly provided by an embodiment of this utility model;

[0034] Figure 3This is a structural diagram of the bracket and support member in the pull-out state of a pull-out fan assembly provided in an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram showing the locking position of the bracket and support member in a pull-out fan assembly according to an embodiment of the present invention.

[0036] Figure 5 A partial cross-sectional view of the bracket and support member in a pull-out fan assembly provided for an embodiment of this utility model;

[0037] Figure 6 A schematic diagram of the fins and support members in a pull-out fan assembly provided for an embodiment of this utility model;

[0038] Figure 7 A partially enlarged view of the fins and support members in a pull-out fan assembly provided for an embodiment of this utility model;

[0039] Figure 8 A structural diagram of a power conversion structure provided in an embodiment of this utility model;

[0040] Figure 9 A fan structure diagram in a power conversion structure provided by an embodiment of this utility model;

[0041] Figure 10 One of the exploded views of a power conversion structure provided in this embodiment of the present utility model;

[0042] Figure 11 One of the schematic diagrams of a fan positioning structure in a power conversion structure provided by this utility model embodiment;

[0043] Figure 12 A second exploded view of a power conversion structure provided in an embodiment of this utility model;

[0044] Figure 13 A second schematic diagram of a fan positioning structure in a power conversion structure provided in this embodiment of the present utility model;

[0045] Figure 14 A schematic diagram of the fan pull-out state in a power conversion structure provided by an embodiment of this utility model;

[0046] Figure 15 This is a partially enlarged schematic diagram of the fan in the withdrawable state in a power conversion structure provided in an embodiment of the present utility model. Detailed Implementation

[0047] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0048] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0049] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0050] Example 1

[0051] To solve the above-mentioned technical problems, this utility model provides a pull-out fan assembly, such as... Figures 1 to 7 As shown, the device includes a fan unit 10 and a support member 20. The fan unit 10 includes a bracket 101 and a plurality of fans 102 mounted on the bracket 101. The support member 20 cooperates with the fan unit 10, allowing the fan unit 10 to slide relative to the support member 20. The bracket 101 has a first end 1011 and a second end 1012, which are the two ends in the sliding direction of the bracket 101. The bracket 101 is provided with a first limiting portion 1013, which is located between the first end 1011 and the second end 1012. The support member 20 is provided with a second limiting portion 201 that cooperates with the first limiting portion 1013. The fan unit 10 has at least a pull-out state when sliding relative to the support member 20 in a first direction and a retracted state when sliding relative to the support member 20 in a second direction, where the first direction and the second direction are opposite. In the pulled-out state, the second limiting part 201 is located downstream of the first limiting part 1013, so that the fan unit 10 has a locked position when the first limiting part 1013 abuts against the second limiting part 201.

[0052] like Figure 3 and Figure 4 As shown, in the pulled-out state, the first end 1011 of the bracket 101 is located downstream of the second end 1012, and the distance between the first limiting part 1013 and the first end 1011 is less than the distance between the first limiting part 1013 and the second end 1012.

[0053] In the pulled-out state, the support member 20 has at least a third end 202, which is distributed on the same side as the first end 1011 of the bracket 101, wherein the second limiting part 201 is provided at the third end 202.

[0054] As an optional implementation, the bracket 101 also has a raised state when it moves along a third direction in response to an external force in the locked position, the third direction being perpendicular to the first direction and the second direction, wherein the raised height of the bracket 101 is greater than or equal to the height of the second limiting part 201 in the third direction.

[0055] like Figure 9 As shown, a third limiting part 3 is provided above the bracket 101. The third limiting part 3 is infinitely close to the bracket 101 but does not contact it. The third limiting part 3 is configured to restrict the degree of freedom of the bracket 101 to move upward before the first limiting part 1013 and the second limiting part 201 come into contact.

[0056] In this embodiment, in the pulled-out state, before the first limiting part 1013 abuts against the second limiting part 201, the third limiting part 3 restricts the fan unit 10 from being lifted upward. During the reset process, the first limiting part 1013 will first pass the second limiting part 201, and when the fan unit is pushed inward, the bottom of the bracket can fully contact the bottom plate of the support member. When the second end of the bracket reaches the third limiting part, the function of the third limiting part becomes a guide mechanism, restricting the fan unit from moving in the horizontal direction.

[0057] like Figure 9 As shown, the support member 20 includes a first support member 210 and a second support member 220. The first support member 210 and the second support member 220 are distributed at a pair of opposing edges of the bracket 101. The first support member 210 and the second support member 220 are strip-shaped and extend along a first direction or a second direction. The first support member 210 and / or the second support member 220 are provided with a second limiting part 201.

[0058] like Figure 5 As shown, the first support member 210 includes at least a side plate 2101 and a bottom plate 2102 disposed at the bottom of the side plate 2101. The side plate 2101 and the bottom plate 2102 surround to form a sliding groove. A first limiting part 1013 is located in the sliding groove. A second limiting part 201 is provided at one end of the bottom plate 2102. The first limiting part 1013 and the second limiting part 201 are in the form of a sheet or a block.

[0059] like Figures 5 to 7As shown, the first support member 210 also includes a top plate 2103 disposed on the top of the side plate 2101. The bracket 101 is provided with fins 1014 on the side facing the side plate 2101. The fins 1014 are located between the first limiting part 1013 and the second end 1012 of the bracket 101, or the fins 1014 are located directly above the first limiting part 1013. In the pulled-out state, the distance between the fins 1014 and the top plate 2103 in the third direction is greater than the height of the second limiting part 201 in the third direction. The third direction is perpendicular to the first direction and the second direction. The top plate 2103 can limit the upper limit position of the first limiting part 1013.

[0060] This embodiment provides a pull-out fan assembly that, by setting a limiting structure in the pulling direction, prevents the fan from being forcibly pulled out, or from being damaged when the fan slides out under gravity due to device tilt without the fan wiring harness being unplugged.

[0061] Example 2

[0062] This utility model discloses a power conversion component, which adopts the pull-out fan component in Embodiment 1, such as... Figures 8 to 15 As shown, the device includes a housing and a pull-out fan assembly. The housing 4 is hollow inside, and the pull-out fan assembly is located inside the hollow cavity of the housing 4. The support member 20 is fixed relative to the housing 4, and the fan unit 10 is slidable relative to the housing 4. The fan unit 10 has a pull-out state that is at least partially exposed outside the housing 4, and a reset state that is housed inside the housing 4.

[0063] like Figure 5 and Figure 6 As shown, taking the first support member 210 as an example, several screw holes are provided on the side plate 2101, and it is fixed to the inner wall of the box 4 by screws and other fasteners.

[0064] like Figure 9 As shown, the first end 1011 of the bracket 101 is provided with a panel unit 401, and the housing 4 is provided with a through opening 402. When the fan unit 10 is in the reset state, the panel unit 401 covers the through opening 402. The panel unit 401 and the housing 4 are detachably connected by a first connecting structure.

[0065] like Figures 10 to 13 As shown, a positioning structure is provided between the bracket 101 and the housing 4. The positioning structure includes a positioning pin 403 and a positioning hole 1016. In the reset state, the positioning pin 403 can be inserted into the positioning hole 1016. One of the positioning pin 403 and the positioning hole 1016 is located on the bracket 101, and the other is located on the housing 4.

[0066] In this embodiment, the panel unit is also provided with a handle 406 to facilitate the removal of the fan unit.

[0067] like Figure 14 and Figure 15 As shown, it also includes: a wire harness storage compartment 404, which is located in the housing 4; the wire harness storage compartment 404 and the fan unit 10 share a panel unit 401; and a fan connector 405, which is located on the wall of the wire harness storage compartment 404.

[0068] During the installation phase of the power conversion components, the support is first fixed inside the enclosure, the fan unit and panel assembly are assembled, and then the fan unit is pushed inward from the through-hole. After being pushed a certain distance, the fan unit reaches... Figure 9 In front of the third limiting part 3 shown, the third limiting part 3 acts as a guide mechanism at this time, guiding the fan unit to move inward and maintaining horizontal movement. Under the guidance of the third limiting part, the fan continues to move inward. In the reset state, the positioning pin inside the housing is inserted into the positioning hole at the second end of the bracket, fixing the panel unit to the housing and completing the installation of the fan unit.

[0069] like Figure 2 As shown, the wiring harnesses of several fans are bundled and organized using the wiring tie structure 1015 on the inner wall of the bracket. The total wiring harness is led out from the side closest to the panel unit. When installing the fan unit, as... Figure 14 and 15 As shown, after the fan unit is pushed inward a certain distance, the wiring harness is plugged into the fan connector. As the fan unit continues to be pushed inward, the wiring harness is automatically stored in the wiring harness storage compartment.

[0070] In a specific embodiment, the positions of the fins 1014 and the first limiting part 1013 on the bracket 101 are set in conjunction with the length of the fan harness. Since the first limiting part is located at the bottom and is not easy to observe, the ability to insert or remove the harness is determined by whether the fins 1014 enter the groove.

[0071] During fan maintenance, disassemble the panel unit and pull the fan unit outward. When the first limiting part abuts against the second limiting part, disconnect the fan harness and lift the fan unit upward. When the fins abut against the top plate of the support, it means that the fan unit has been lifted to the height that satisfies the condition that the first limiting part has passed the second limiting part, and the fan unit can continue to be pulled out.

[0072] This embodiment provides a power conversion structure in which the fan assembly can be pulled out from the operation panel for easy maintenance and replacement. The fan assembly is equipped with a limiting structure (first limiting part and second limiting part), a guiding structure (third limiting part), and a feedback structure (fins) to indicate the timing of fan harness insertion and removal, preventing damage to the wiring harness and insertion / removal ports during fan unit installation and maintenance, thus reducing usage costs and maintenance difficulty.

[0073] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, those skilled in the art can make other variations or modifications without creative effort, and all such variations or modifications should fall within the protection scope of this utility model.

Claims

1. A pull-out fan assembly, characterized in that, include: The fan unit (10) includes a bracket (101) and a plurality of fans (102) mounted on the bracket (101); The support member (20) cooperates with the fan unit (10), and the fan unit (10) can slide relative to the support member (20); The bracket (101) has a first end (1011) and a second end (1012), the first end (1011) and the second end (1012) being the two ends in the sliding direction of the bracket (101), and the bracket (101) is provided with a first limiting part (1013), the first limiting part (1013) being located between the first end (1011) and the second end (1012); The support member (20) is provided with a second limiting part (201) that cooperates with the first limiting part (1013); the fan unit (10) has at least a pull-out state when sliding relative to the support member (20) in a first direction and a retracted state when sliding relative to the support member (20) in a second direction, wherein the first direction is opposite to the second direction; In the pulled-out state, the second limiting part (201) is located downstream of the first limiting part (1013) so that the fan unit (10) has a locked position when the first limiting part (1013) abuts against the second limiting part (201).

2. The pull-out fan assembly as described in claim 1, characterized in that, In the pulled-out state, the first end (1011) of the bracket (101) is located downstream of the second end (1012), and the distance between the first limiting part (1013) and the first end (1011) is less than the distance between the first limiting part (1013) and the second end (1012). In the pulled-out state, the support member (20) has at least a third end (202), which is distributed on the same side as the first end (1011) of the bracket (101), wherein the second limiting part (201) is provided at the third end (202).

3. The pull-out fan assembly as described in claim 1, characterized in that, The bracket (101) also has a raised state when it moves along a third direction in response to an external force in the locked position, the third direction being perpendicular to the first direction and the second direction, wherein the raised height of the bracket (101) is greater than or equal to the height of the second limiting part (201) in the third direction.

4. The pull-out fan assembly as described in claim 1, characterized in that, A third limiting part (3) is provided above the bracket (101). The third limiting part (3) is infinitely close to the bracket (101) but not in contact with it. The third limiting part (3) is configured to restrict the degree of freedom of the bracket (101) to move upward before the first limiting part (1013) and the second limiting part (201) come into contact.

5. The pull-out fan assembly as described in claim 1, characterized in that, The support member (20) includes a first support member (210) and a second support member (220). The first support member (210) and the second support member (220) are distributed at a pair of opposing edges of the bracket (101). The first support member (210) and the second support member (220) are strip-shaped and extend along the first direction or the second direction. The first support member (210) and / or the second support member (220) are provided with a second limiting part (201).

6. The pull-out fan assembly as described in claim 5, characterized in that, The first support member (210) includes at least a side plate (2101) and a bottom plate (2102) disposed at the bottom of the side plate (2101). The side plate (2101) and the bottom plate (2102) surround and form a sliding groove. The first limiting part (1013) is located in the sliding groove. One end of the bottom plate (2102) is provided with a second limiting part (201). The first limiting part (1013) and the second limiting part (201) are in the form of a sheet or a block.

7. The pull-out fan assembly as described in claim 6, characterized in that, The first support member (210) further includes a top plate (2103) disposed on the top of the side plate (2101). The bracket (101) is provided with fins (1014) on the side facing the side plate (2101). The fins (1014) are located between the first limiting part (1013) and the second end (1012) of the bracket (101), or the fins (1014) are located directly above the first limiting part (1013). In the pulled-out state, the distance between the fins (1014) and the top plate (2103) in the third direction is greater than the height of the second limiting part (201) in the third direction. The third direction is perpendicular to the first direction and the second direction. The top plate (2103) can limit the upper limit position of the first limiting part (1013).

8. A power conversion structure, characterized in that, include: The box (4) is hollow inside; A pull-out fan assembly is located inside the hollow cavity of the housing (4); Wherein, the pull-out fan assembly is the pull-out fan assembly according to any one of claims 1 to 7, the support member (20) is fixed relative to the housing (4), the fan unit (10) is slidable relative to the housing (4), and the fan unit (10) has a pull-out state at least partially exposed to the housing (4) and a reset state housed in the housing (4).

9. The power conversion structure as described in claim 8, characterized in that, The first end (1011) of the bracket (101) is provided with a panel unit (401), and the housing (4) is provided with a through opening (402). When the fan unit (10) is in the reset state, the panel unit (401) covers the through opening (402). The panel unit (401) and the housing (4) are detachably connected via a first connecting structure; and / or, A positioning structure is provided between the bracket (101) and the housing (4). The positioning structure includes a positioning pin (403) and a positioning hole (1016). In the reset state, the positioning pin (403) can be inserted into the positioning hole (1016). One of the positioning pin (403) and the positioning hole (1016) is located on the bracket (101), and the other is located on the housing (4).

10. The power conversion structure as described in claim 9, characterized in that, Also includes: A wire harness storage compartment (404) is provided in the housing (4); the wire harness storage compartment (404) and the fan unit (10) share the panel unit (401); The fan connector (405) is located on the wall of the wire harness storage compartment (404).

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