Power supply housing structure and switching power supply

Abstract

The present invention belongs to the technical field of electrical components, and specifically relates to a shell, and in particular to a power supply housing structure and a switching power supply, which comprises: a shell, wherein at least one chamber for installing a fan is opened in the shell, the chamber is arranged close to the side wall in the length direction of the shell, and a pushing mechanism is arranged on the side wall in the width direction of the shell in the chamber; a fan power supply module and a control module electrically connected to the fan power supply module are arranged in the shell; a baffle is slidably arranged in the shell, the sliding direction of the baffle is along the length direction of the shell, and the baffle is arranged close to the top surface of the shell; when the fan is inserted into the chamber, the fan squeezes the pushing mechanism, so that the top of the pushing mechanism contacts the baffle and drives the baffle to move; the switching of heat dissipation by heat dissipation holes and heat dissipation by fans is realized in the same switching power supply, and the heat dissipation holes will not affect the heat dissipation effect of the fan during the heat dissipation of the fan, so as to meet more usage scenarios.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical components, and specifically relates to a housing, and more particularly to a power supply housing structure and a switching power supply. Background Art

[0002] In the related art, the heat dissipation method of the switching power supply can be natural heat dissipation through heat dissipation holes or forced air cooling by fans. At present, different customers have different needs. Some require power supplies with forced air cooling, while others require power supplies with natural heat dissipation. If fan cooling is used in a switching power supply with heat dissipation holes, the presence of the heat dissipation holes will cause the fan heat dissipation effect to decrease. During forced air cooling, the gas blown into the switching power supply will be discharged through the heat dissipation holes, resulting in the inability to dissipate heat and cool down components far away from the fan. When the heat dissipation method needs to be changed, the entire switching power supply needs to be replaced. In particular, in some devices with special installation locations, the original switching power supply is customized to adapt to the installation location. If the heat dissipation method needs to be changed, the switching power supply needs to be re-customized, which wastes a lot of time.

[0003] Therefore, in order to meet the heat dissipation requirements of different customers for the same switching power supply and solve the compatibility problem of the switching power supply under different heat dissipation conditions, it is necessary to design a new power supply housing structure and switching power supply.

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0005] The embodiments of the present disclosure at least provide a power supply housing structure and a switching power supply.

[0006] In a first aspect, an embodiment of the present disclosure provides a power supply housing structure, including:

[0007] A shell, wherein at least one chamber for installing a fan is provided in the shell, the chamber is arranged close to a side wall of the shell in a length direction, and a push mechanism is arranged on a side wall of the chamber in a width direction of the shell;

[0008] The housing is provided with a fan power supply module and a control module electrically connected to the fan power supply module;

[0009] The control module is suitable for controlling the power supply of the fan power supply module;

[0010] A baffle is slidably arranged in the shell, the sliding direction of the baffle is along the length direction of the shell, and the baffle is arranged close to the top surface of the shell;

[0011] When the fan is inserted into the chamber, the fan presses the push mechanism so that the top of the push mechanism contacts the baffle plate and drives the baffle plate to move. The fan is controlled by a control module, and the control module controls the fan power supply module to supply power to the fan.

[0012] In an optional embodiment, the pushing mechanism includes: an elastic member and a pushing block;

[0013] The elastic member is arc-shaped, and the arched portion of the elastic member faces the middle position of the chamber;

[0014] The bottom of the elastic member is connected to the housing;

[0015] The top of the elastic member is connected to the push block;

[0016] The top surface of the push block is an inclined surface, and the inclined surface contacts the edge of the baffle;

[0017] A receiving area is formed between the elastic member and the inner wall of the shell.

[0018] In an optional embodiment, the length of the push block is at least equal to the width of the fan, so that when the push block rises to the maximum height, the baffle contacts the side of the fan close to the baffle.

[0019] In an optional implementation, a plurality of first heat dissipation holes are formed on the top surface of the shell.

[0020] In an optional implementation, a plurality of second heat dissipation holes are formed on the baffle.

[0021] In an optional embodiment, a slideway is provided on the inner wall of the shell, the slideway is provided along the length direction of the shell, and the edge of the baffle is located in the slideway.

[0022] In an optional embodiment, a first through hole corresponding to the chamber is formed on the top surface of the shell, and a second through hole corresponding to the chamber is formed on the bottom surface of the shell;

[0023] The size of the second through hole is adapted to the size of the fan so that the fan can be inserted into the corresponding chamber through the second through hole;

[0024] The size of the first through hole is smaller than that of the fan to prevent the fan from passing through the first through hole.

[0025] In an optional embodiment, if there are two or more chambers, adjacent chambers are separated by partitions, and the partitions are connected to the inner bottom surface of the shell.

[0026] In an optional implementation, a spring is connected between the baffle and the inner wall of the shell.

[0027] In a second aspect, an embodiment of the present disclosure further provides a switching power supply, including:

[0028] The power supply housing structure described above.

[0029] In a third aspect, the present disclosure also provides a method for using the above-mentioned switching power supply, including:

[0030] When the fan is inserted into the chamber, the fan presses the push mechanism so that the top of the push mechanism contacts the baffle plate and drives the baffle plate to move.

[0031] The beneficial effect of the present invention is that the power supply shell structure comprises: a shell, at least one chamber for installing a fan is opened in the shell, the chamber is arranged close to the side wall in the length direction of the shell, and a pushing mechanism is arranged on the side wall in the width direction of the shell in the chamber; a fan power supply module and a control module electrically connected to the fan power supply module are arranged in the shell; the control module is suitable for controlling the power supply of the fan power supply module; a baffle is slidably arranged in the shell, the sliding direction of the baffle is along the length direction of the shell, and the baffle is arranged close to the top surface of the shell; when the fan is inserted into the chamber, the fan squeezes the pushing mechanism so that the pushing mechanism contacts and moves the baffle, and the fan is controlled by the control module, and the control module controls the fan power supply module to supply power to the fan; the switching of heat dissipation by heat dissipation holes and heat dissipation by fans is realized in the same switching power supply, and the heat dissipation holes will not affect the heat dissipation effect of the fan during the heat dissipation of the fan, so as to meet more usage scenarios.

[0032] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of a switching power supply provided in an embodiment of the present disclosure;

[0036] Figure 2 A schematic diagram of the structure of a push mechanism provided in an embodiment of the present disclosure;

[0037] Figure 3 A schematic structural diagram of a push mechanism from another perspective provided in an embodiment of the present disclosure;

[0038] Figure 4 A schematic diagram of the structure of a baffle provided in an embodiment of the present disclosure;

[0039] Figure 5 A schematic diagram of a second through hole provided in an embodiment of the present disclosure.

[0040] In the figure:

[0041] 1 housing, 11 chamber, 12 first heat dissipation hole, 13 slideway, 14 first through hole, 15 second through hole, 16 fan hole;

[0042] 2 baffle, 21 second heat dissipation hole;

[0043] 3 elastic member, 31 push block;

[0044] 4 Fans. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0047] After research, it was found that the disadvantage of the prior art is that the heat dissipation method of the switching power supply can be heat dissipation through heat dissipation holes or heat dissipation through fans. These are two types of switching power supplies. If fan heat dissipation is used in a switching power supply with heat dissipation through heat dissipation holes, the existence of the heat dissipation holes will cause the effect of fan heat dissipation to decrease, that is, the airflow blown into the switching power supply by the fan will be discharged through the heat dissipation holes, resulting in the airflow being unable to pass through the entire space inside the switching power supply, resulting in a decrease in the heat dissipation effect. When it is necessary to change the heat dissipation method, it is necessary to purchase the corresponding type of switching power supply, and the newly purchased switching power supply needs to adapt to the installation space. If some special installation locations even need to be customized, the cost is high and waiting is required, which wastes time.

[0048] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0049] like Figure 1 As shown, in at least one disclosed embodiment, a power supply housing structure is provided, comprising: a shell 1, wherein at least one chamber 11 for installing a fan 4 is provided in the shell 1, the chamber 11 is arranged close to the side wall in the length direction of the shell 1, and a push mechanism is arranged on the side wall in the width direction of the shell 1 in the chamber 11; a fan power supply module and a control module electrically connected to the fan power supply module are arranged in the shell 1; the control module is suitable for controlling the power supply of the fan power supply module; a baffle 2 is slidably provided in the shell 1, the sliding direction of the baffle 2 is along the length direction of the shell 1, and the baffle 2 is arranged close to the top surface of the shell 1; when the fan 4 is inserted into the chamber 11, the fan 4 squeezes the push mechanism so that the top After the top of the pushing mechanism contacts the baffle 2, it drives the baffle 2 to move, and the fan 4 is controlled by the control module, and the control module controls the fan power supply module to supply power to the fan 4; the switching of heat dissipation by the heat dissipation holes and the heat dissipation by the fan 4 in the same switching power supply is realized, and the heat dissipation holes will not affect the heat dissipation effect of the fan 4 during the heat dissipation of the fan 4, thereby meeting more usage scenarios; it is only necessary to install the fan 4 in the shell 1 to change the original heat dissipation hole heat dissipation to the fan 4 heat dissipation, and there is no need to purchase a new switching power supply, and the shape of the shell 1 will not be changed, so that the shell 1 can still adapt to the original installation position, and when facing an installation position with a special shape, the heat dissipation method can be changed quickly.

[0050] The housing 1 may include an integrated circuit board, a switching power supply conversion circuit composed of power electronic devices, and is provided with a fan power supply module for powering the fan 4 and a control module for powering the fan 4 .

[0051] The baffle plate 2 is fitted to the inner top surface of the housing 1 , so that the first heat dissipation hole 12 and the second heat dissipation hole 21 can be blocked after the baffle plate 2 moves.

[0052] like Figure 4As shown, in an optional embodiment, a plurality of first heat dissipation holes 12 are provided on the top surface of the shell 1; a plurality of second heat dissipation holes 21 are provided on the baffle 2; when the fan 4 is not installed, the first heat dissipation holes 12 are aligned with the corresponding second heat dissipation holes 21, and the heat in the shell 1 can be dissipated through the first heat dissipation holes 12 and the second heat dissipation holes 21; when heat dissipation needs to be dissipated through the fan 4, the fan 4 is installed in the corresponding chamber 11, and the portion of the baffle 2 without the second heat dissipation holes 21 will block the first heat dissipation holes 12, and the second heat dissipation holes 21 and the first heat dissipation holes 12 are both covered, and the first heat dissipation holes 12 and the second heat dissipation holes 21 will not affect the heat dissipation of the fan 4, thereby completing the change of the heat dissipation method.

[0053] like Figure 2 and Figure 3 As shown, in an optional embodiment, the pushing mechanism includes: an elastic member 3 and a pushing block 31; the elastic member 3 is arc-shaped, and the arched part of the elastic member 3 faces the middle position of the chamber 11; the bottom of the elastic member 3 is connected to the shell 1; the top of the elastic member 3 is connected to the pushing block 31; the top surface of the pushing block 31 is an inclined surface, which contacts the edge of the baffle 2; the pushing block 31 is slidably connected to the inner wall of the shell 1; a storage area is formed between the elastic member 3 and the inner wall of the shell 1, and the wiring harness in the switching power supply can be arranged in the storage area. The elastic member 3 plays a limiting role on the wiring harness. When heat is dissipated through the first heat dissipation hole 12 and the second heat dissipation hole 21, the elastic member 3 does not clamp the wiring harness, and there is a space gap between the elastic member 3 and the wiring harness to avoid the wiring harness from being damaged. The generated heat accumulates between the elastic member 3 and the inner wall of the shell 1. When the fan 4 is inserted into the chamber 11, the elastic member 3 is squeezed to clamp the wiring harness, thereby preventing the wiring harness from being entangled in the fan 4 when the fan 4 is working; when the fan 4 is inserted into the corresponding chamber 11, the fan 4 will squeeze the elastic member 3, causing the elastic member 3 to deform, and the degree of arching of the elastic member 3 is reduced, driving the push block 31 to move upward. During the upward movement of the push block 31, the inclined surface will push the baffle 2 to move, causing the first heat dissipation hole 12 and the second heat dissipation hole 21 that were originally aligned to be misaligned, and the first heat dissipation hole 12 and the second heat dissipation hole 21 are gradually completely covered; the elastic member 3 can clamp the fan 4 from the side wall of the fan 4 to prevent the fan 4 from being offset during the operation of the working power supply.

[0054] In an optional embodiment, the length of the push block 31 is at least equal to the width of the fan 4, so that when the push block 31 rises to the maximum height, the baffle 2 contacts the side of the fan 4 close to the baffle 2; for example, the length of the push block 31 is the same as the width of the fan 4, and when the push block 31 moves upward to the highest position, the distance between the baffle 2 and the inner wall of the shell 1 (the inner wall is the inner wall corresponding to the side wall of the shell 1 close to the chamber 11) is adapted to the width of the fan 4, and the fan 4 can pass smoothly, and then the baffle 2 can contact the side of the fan 4 close to the baffle 2, and at this time, the baffle 2 blocks the fan 4 to prevent the fan 4 from deviating. At this time, the clamping direction of the elastic member 3 to the fan 4 is perpendicular to the blocking direction of the baffle 2 to the fan 4, which better prevents the fan 4 from deflecting; if the length of the push block 31 is greater than the width of the fan 4, when the push block 31 moves to the highest position, the baffle 2 does not move to the lowest position of the inclined surface, and the baffle 2 is still on the inclined surface. The distance between the baffle 2 and the inner wall of the shell 1 is adapted to the width of the fan 4, ensuring that the baffle 2 can contact the fan 4 to play a blocking role; if the length of the push block 31 is less than the fan 4, the distance between the baffle 2 and the inner wall of the shell 1 will be less than the width of the fan 4, and the fan 4 will be blocked by the baffle 2 and cannot be installed.

[0055] In an optional embodiment, a slide 13 is provided on the inner wall of the shell 1, and the slide 13 is provided along the length direction of the shell 1, and the edge of the baffle 2 is located in the slide 13; the baffle 2 can move along the slide 13, and the slide 13 limits the movement of the baffle 2 to prevent the baffle 2 from shifting.

[0056] like Figure 5 As shown, in an optional embodiment, a first through hole 14 corresponding to the chamber 11 is provided on the top surface of the shell 1, and a second through hole 15 corresponding to the chamber 11 is provided on the bottom surface of the shell 1; the size of the second through hole 15 is adapted to the size of the fan 4, so that the fan 4 can be inserted into the corresponding chamber 11 from the second through hole 15; the size of the first through hole 14 is smaller than the size of the fan 4 to avoid the fan 4 passing through the first through hole 14; the fan 4 is inserted into the chamber 11 from the second through hole 15 on the bottom surface of the shell 1, and when the top surface of the fan 4 is against the inner top surface of the shell 1, it is judged that the installation of the fan 4 is completed, at this time, the fan 4 is clamped from both sides of the fan 4 by the elastic member 3, and the baffle 2 blocks the fan 4 from one side of the fan 4 to avoid the deviation of the fan 4, and the state of the fan 4 can be observed through the first through hole 14, which is convenient for subsequent inspection of the fan 4.

[0057] In an optional embodiment, if there are two or more chambers 11 , adjacent chambers 11 are separated by partitions, and the partitions are connected to the inner bottom surface of the shell 1 .

[0058] In an optional embodiment, a spring is connected between the baffle 2 and the inner wall of the shell 1; the spring can make the baffle 2 contact and press against one side of the fan 4 to ensure the blocking effect.

[0059] In the initial state, the fan 4 has not been installed in the chamber 11. At this time, the baffle 2 blocks the first through hole 14, the first heat dissipation hole 12 is aligned with the corresponding second heat dissipation hole 21, the inclined surface of the push block 31 contacts the edge of the baffle 2, and there is a space between the push block 31 and the top surface of the shell 1 (that is, the baffle 2 has a certain thickness). At this time, the heat in the shell 1 is dissipated through the first heat dissipation hole 12 and the second heat dissipation hole 21. When heat dissipation through the fan 4 is required, the fan 4 is inserted into the chamber 11 from the second through hole 15, and the fan 4 squeezes the elastic member 3. The degree of arching of the elastic member 3 is reduced, and the clamping line The push block 31 is bundled and drives the push block 31 to move upward. The inclined surface of the push block 31 drives the baffle 2 to move. When the baffle 2 moves, the spring is squeezed. The movement of the baffle 2 blocks the first heat dissipation hole 12 and the second heat dissipation hole 21. The first heat dissipation hole 12 and the second heat dissipation hole 21 cannot dissipate heat. When the push block 31 rises to the maximum height, the baffle 2 contacts the side of the fan 4 close to the baffle 2. When the top surface of the fan 4 contacts the top surface inside the shell 1, the fan 4 is inserted into place. At this time, the fan 4 is clamped from both sides of the fan 4 by the elastic member 3, and the baffle 2 blocks the fan 4 from one side of the fan 4 to perform heat dissipation on the fan 4. The fan 4 is clamped and limited to prevent it from deviating. The compressed spring allows the push plate to resist the fan 4 to ensure the blocking effect. After the baffle 2 moves, the first through hole 14 is opened. After the working power supply is installed, the fan 4 can be observed through the first through hole 14. The first through hole 14 is blocked at the beginning to prevent larger impurities from falling into the chamber 11 through the first through hole 14 and affecting the installation of the fan 4. After the working power supply is installed, the second through hole 15 is blocked at the installation position to prevent the fan 4 from falling out of the second through hole 15. A fan hole 16 corresponding to the chamber 11 is opened on the side wall of the shell 1. The fan hole 16 Connected to the chamber 11, the fan 4 can dissipate the heat in the shell 1 through the fan hole 16; a ventilation hole can be opened on the other side wall of the shell 1 corresponding to the side wall with the fan hole 16. When the fan 4 is working, the airflow blown into the shell 1 by the fan 4 can completely pass through the entire space inside the shell 1 and then be discharged from the ventilation hole, ensuring the heat dissipation of the entire space inside the shell 1 and all devices. When the fan 4 is working, the first heat dissipation hole 12 and the second heat dissipation hole 21 are closed to prevent the airflow from being discharged from the first heat dissipation hole 12 and the second heat dissipation hole 21 on the top of the shell 1, thereby ensuring the heat dissipation effect.

[0060] In at least one other disclosed embodiment, a switching power supply is provided, comprising: the power supply housing structure described above.

[0061] In at least one other disclosed embodiment, a method for using the above-mentioned power supply housing structure is also provided, including: when the fan 4 is inserted into the chamber 11, the fan 4 squeezes the pushing mechanism so that the top of the pushing mechanism contacts the baffle 2 and drives the baffle 2 to move.

[0062] In summary, the power supply shell structure includes: a shell 1, in which at least one chamber 11 for installing a fan 4 is opened, the chamber 11 is arranged close to the side wall of the shell 1 in the length direction, and a pushing mechanism is arranged on the side wall of the shell 1 in the width direction of the shell 1 in the chamber 11; a fan power supply module and a control module electrically connected to the fan power supply module are arranged in the shell 1; the control module is suitable for controlling the power supply of the fan power supply module; a baffle 2 is slidably arranged in the shell 1, and the sliding direction of the baffle 2 is along the length direction of the shell 1, and the baffle 2 is arranged close to the top surface of the shell 1; when the fan 4 is inserted into the chamber 11, the fan 4 squeezes the pushing mechanism, so that the top of the pushing mechanism contacts the baffle 2 and drives the baffle 2 to move, and the fan 4 is controlled by the control module, and the control module controls the fan power supply module to supply power to the fan 4; the switching of heat dissipation by the heat dissipation holes and the heat dissipation of the fan 4 in the same switching power supply is realized, and the heat dissipation holes will not affect the heat dissipation effect of the fan 4 during the heat dissipation of the fan 4, so as to meet more usage scenarios.

[0063] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply a sequence or order when used herein, unless explicitly indicated above.

[0065] Spatially relative terms, such as "inside," "outside," "below," "beneath," "below," "above," "on," and the like, may be used herein to facilitate describing the relationship of one element or feature to another element or feature as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures were turned over, elements described as "below" or "beneath" other elements or features would be oriented "above" the other elements or features.

[0066] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A power supply housing structure, characterized in that: include: A shell, wherein at least one chamber for installing a fan is provided in the shell, the chamber is arranged close to a side wall of the shell in a length direction, and a push mechanism is arranged on a side wall of the chamber in a width direction of the shell; The housing is provided with a fan power supply module and a control module electrically connected to the fan power supply module; The control module is suitable for controlling the power supply of the fan power supply module; A baffle is slidably arranged in the shell, the sliding direction of the baffle is along the length direction of the shell, and the baffle is arranged close to the top surface of the shell; When the fan is inserted into the chamber, the fan presses the push mechanism so that the top of the push mechanism contacts the baffle plate and drives the baffle plate to move. The fan is controlled by a control module, and the control module controls the fan power supply module to supply power to the fan. The push mechanism comprises: an elastic member and a push block; The elastic member is arc-shaped, and the arched portion of the elastic member faces the middle position of the chamber; The bottom of the elastic member is connected to the housing; The top of the elastic member is connected to the push block; The top surface of the push block is an inclined surface, and the inclined surface contacts the edge of the baffle; A storage area is formed between the elastic member and the inner wall of the shell; The length of the push block is at least equal to the width of the fan, so that when the push block rises to the maximum height, the baffle plate contacts the side of the fan close to the baffle plate; The top surface of the shell is provided with a plurality of first heat dissipation holes; The baffle is provided with a plurality of second heat dissipation holes; When the fan is not installed, the first heat dissipation hole is aligned with the corresponding second heat dissipation hole, and the heat in the housing is dissipated through the first heat dissipation hole and the second heat dissipation hole; When heat dissipation through a fan is required, the fan is installed in the corresponding chamber. At this time, the portion of the baffle plate without the second heat dissipation hole blocks the first heat dissipation hole. At this time, both the second heat dissipation hole and the first heat dissipation hole are covered, and the first heat dissipation hole and the second heat dissipation hole will not affect the heat dissipation of the fan, thereby completing the change of the heat dissipation mode; When the fan is inserted into the corresponding chamber, the fan will squeeze the elastic part, causing the elastic part to deform, and the degree of arching of the elastic part will decrease, driving the push block to move upward. During the upward movement of the push block, the inclined surface will push the baffle to move, causing the first heat dissipation hole and the second heat dissipation hole that were originally aligned to be misaligned, and the first heat dissipation hole and the second heat dissipation hole are gradually completely covered.

2. The power supply housing structure according to claim 1, characterized in that: A slideway is arranged on the inner wall of the shell, and the slideway is arranged along the length direction of the shell. The edge of the baffle is located in the slideway.

3. The power supply housing structure according to claim 1, characterized in that: A first through hole corresponding to the chamber is formed on the top surface of the shell, and a second through hole corresponding to the chamber is formed on the bottom surface of the shell; The size of the second through hole is adapted to the size of the fan so that the fan can be inserted into the corresponding chamber through the second through hole; The size of the first through hole is smaller than that of the fan to prevent the fan from passing through the first through hole.

4. The power supply housing structure according to claim 1, characterized in that: If there are two or more chambers, adjacent chambers are separated by partitions, and the partitions are connected to the inner bottom surface of the shell.

5. The power supply housing structure according to claim 1, characterized in that: A spring is connected between the baffle and the inner wall of the shell.

6. A switching power supply, characterized in that: include: A power supply housing structure as described in any one of claims 1 to 5.

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