Heat exchanger for frequency converter

Abstract

The utility model discloses a heat exchanger used on a frequency converter, and relates to the technical field of heat exchangers, the heat exchanger comprises a bottom plate, the bottom plate is provided with a plurality of fins, each fin is provided with a positioning block, the bottom plate is provided with positioning grooves used for being matched with the positioning blocks, and the positioning blocks are arranged in the positioning grooves. The bottom plate is detachably connected with a fixing plate used for limiting the positioning block to be separated from the positioning groove, and the fixing plate is connected with the bottom plate through a fixing assembly. When one fin is damaged, the fixing assembly loosens the fixing plate, so that the fixing plate can be detached from the bottom plate. At the moment, the fins are not limited by the fixing plates any more, and the damaged fins can be taken down from the bottom plate. When the fins are replaced, the new fins are installed on the bottom plate, the fixing plate is installed on the bottom plate again through the fixing assembly, the fixing plate plays a role in fixing the fins again, and therefore the fins are replaced, materials are saved, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of heat exchangers, in particular to a heat exchanger for a frequency converter. BACKGROUND

[0002] At present, in industrial applications, the heat exchanger of the frequency converter is mainly used for keeping the temperature of the frequency converter stable during operation, preventing overheating from causing equipment damage or performance decline.

[0003] The fins and the fin plates in the existing heat exchanger are connected together through welding, when one fin is damaged, the heat exchanger needs to be replaced, causing waste of materials and increase of cost, and needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a heat exchanger for a frequency converter, in order to replace the fins.

[0005] The heat exchanger for a frequency converter provided by the application adopts the following technical scheme: a bottom plate is provided with a plurality of fins, each fin is provided with a positioning block, the bottom plate is provided with a positioning groove for cooperating with the positioning block, the bottom plate is detachably connected with a fixing plate for limiting the positioning block from being separated from the positioning groove, and the fixing plate and the bottom plate are connected through a fixing assembly.

[0006] Through the above technical scheme, when one fin is damaged, the fixing assembly loosens the fixing plate, so that the fixing plate can be removed from the bottom plate. At this time, the fixing plate no longer limits the fin, and the damaged fin can be removed from the bottom plate. A new fin is installed on the bottom plate, and in the installation process, the positioning block is clamped into the positioning groove, the outer surface of the positioning block is attached to the inner wall of the positioning groove, so that the fin is accurately installed at the corresponding position, the inner wall of the positioning groove limits the movement of the positioning block, and the stability of the fin installed on the bottom plate is also improved. The fixing plate is reinstalled on the bottom plate through the fixing assembly, and the fixing plate again plays a fixing role on the fin, so that the replacement of the fin is realized, material is saved, and cost is reduced.

[0007] Optionally, the fixing assembly comprises two locking pieces screwed on the bottom plate, and the fixing plate is provided with a passage for the locking pieces to pass through.

[0008] Through the above technical scheme, the locking pieces are loosened, and the fixing plate can be removed from the bottom plate. When the locking pieces are tightened, the fixing plate is clamped by the locking pieces and the bottom plate, so that the fixing plate is fixed on the bottom plate, thereby facilitating the disassembly and assembly of the fixing plate.

[0009] Optionally, the passage is a waist-shaped hole.

[0010] By adopting the technical scheme, the waist-shaped hole can adjust the closest distance between the abutting surface of the fixing plate and the bottom plate, thereby being applicable to fins with different heights. The waist-shaped hole provides more space for installation of the locking member, thereby improving the fixing efficiency of the fixing plate and the bottom plate.

[0011] Optionally, the bottom plate is provided with a mounting groove for clamping the fixing plate.

[0012] By adopting the technical scheme, the fixing plate is clamped in the mounting groove, the outer surface of the fixing plate is attached to the inner wall of the mounting groove, the inner wall of the mounting groove limits the movement of the fixing plate, the fixing plate is conveniently installed on the bottom plate through the locking member, and the installation efficiency of the fixing plate is improved.

[0013] Optionally, the fixing plate is provided with a limiting groove for clamping the corresponding fin.

[0014] By adopting the technical scheme, the fin is clamped in the limiting groove, the outer surface of the fin is attached to the inner wall of the limiting groove, the inner wall of the limiting groove limits the movement of the fin, and the stability of the fin installed on the bottom plate is improved.

[0015] Optionally, the fixing assembly comprises a fixing block slidingly connected to the bottom plate and a moving structure for driving the fixing block to slide, the moving structure is connected to the bottom plate, the bottom plate is provided with a sliding groove for sliding cooperation with the fixing block, and the fixing plate is provided with a fixing groove for clamping the fixing block.

[0016] By adopting the technical scheme, when the fixing plate needs to be installed on the bottom plate, the fixing block corresponds to the fixing groove, the moving structure drives the fixing block to slide towards the direction close to the fixing groove, and the fixing block is clamped in the fixing groove, thereby preventing the fixing plate from being separated from the bottom plate. When the fixing plate needs to be removed from the bottom plate, the moving structure drives the fixing block to slide away from the fixing groove, the fixing block is separated from the fixing groove, and the fixing plate can be removed from the bottom plate.

[0017] Optionally, the moving structure comprises a first elastic member and a driving member for driving the fixing block to slide away from the fixing plate, the driving member is connected to the bottom plate, one end of the first elastic member is connected to the fixing block, and the other end of the first elastic member is connected to the inner wall of the sliding groove.

[0018] By adopting the technical scheme, when the fixing plate needs to be removed, the driving member drives the fixing block to slide away from the fixing plate, so that the fixing block is separated from the fixing groove, and the fixing plate can be removed from the bottom plate. The first elastic member is pressed to elastically deform and has a tendency to elastically reset. When the fixing plate needs to be installed, the driving member is loosened, the first elastic member forces the fixing block to reset, so that the fixing block is clamped in the fixing groove, and the fixing block fixes the fixing plate again.

[0019] Optionally, the fixed block is provided with a guide surface on the side away from the first elastic member, which is used to abut against the fixed plate.

[0020] By adopting the technical scheme, when the fixed plate is installed, the fixed plate abuts against the guide surface and drives the fixed block to slide towards the first elastic member, the first elastic member is elastically deformed under pressure and tends to be elastically reset, until the fixed block is aligned with the fixed slot, the first elastic member is elastically reset, and the first elastic member forces the fixed block to be clamped into the fixed slot, so that the fixed block limits the movement of the fixed plate. The guide surface reduces the step of driving the fixed block to move by the driving member, and improves the installation efficiency of the fixed plate.

[0021] Optionally, the driving member is a driving rod, the bottom plate is provided with a through hole used to slide with the driving rod, the through hole is communicated with the sliding slot, and the fixed block is provided with an inclined surface used to abut against the driving rod.

[0022] By adopting the technical scheme, when the fixed block needs to be separated from the fixed slot, one end of the driving rod passes through the through hole and abuts against the inclined surface, and the driving rod drives the fixed block to slide away from the fixed slot, so that the fixed plate is disassembled.

[0023] Optionally, one end of the driving rod is provided with a boss, the bottom plate is provided with a countersunk groove used to slide with the boss, the countersunk groove is communicated with the sliding slot, and the boss is connected with the bottom plate through a second elastic member.

[0024] By adopting the technical scheme, when the fixed block needs to be separated from the fixed slot, the driving rod is pressed towards the fixed block, the driving rod abuts against the fixed block and drives the fixed block to slide away from the fixed slot, the second elastic member is elastically deformed under pressure and tends to be elastically reset, so that the driving rod is reset, and the operation is facilitated again.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. When one of the fins is damaged, the fixing assembly loosens the fixed plate, so that the fixed plate can be disassembled from the bottom plate. At this time, the fixed plate no longer limits the fin, and the damaged fin can be removed from the bottom plate. A new fin is installed on the bottom plate, the fixed plate is reinstalled on the bottom plate through the fixing assembly, and the fixed plate plays a fixing role on the fin again, so that the fin replacement is realized, material is saved, and cost is reduced.

[0027] 2. The waist-shaped hole can adjust the closest distance between the abutment surface of the fixed plate and the bottom plate, so as to be suitable for fins of different heights. The waist-shaped hole provides more space for the installation of the locking member, and improves the fixing efficiency of the fixed plate and the bottom plate. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application.

[0029] Figure 2 is an exploded view of embodiment 1 of the present application.

[0030] Figure 3 is a sectional view of embodiment 1 of the present application.

[0031] Figure 4 is an enlarged view of area A of Figure 3

[0032] Figure 5 is a schematic diagram of the overall structure of embodiment 2 of the present application.

[0033] Figure 6 is a sectional view of embodiment 2 of the present application.

[0034] Figure 7 is an enlarged view of area B of Figure 6

[0035] BRIEF DESCRIPTION OF THE DRAWINGS: 1, bottom plate; 11, positioning groove; 12, mounting groove; 13, sliding groove; 14, through hole; 15, countersunk groove; 2, fin; 21, positioning block; 3, fixed plate; 31, limiting groove; 32, channel; 321, waist-shaped hole; 33, fixed groove; 4, fixed assembly; 41, locking piece; 42, fixed block; 421, guide surface; 422, inclined surface; 43, moving structure; 431, first elastic piece; 432, driving piece; 4321, driving rod; 4322, boss; 5, second elastic piece. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying drawings. Figure 1 - the accompanying drawings Figure 7 The present application will be described in further detail.

[0037] Embodiments of the present application disclose a heat exchanger for a frequency converter.

[0038] In combination with Figure 1 and Figure 2 shown, including a bottom plate 1, the upper surface of the bottom plate 1 is provided with a plurality of fins 2, the fins 2 are cuboid-shaped, the distance between adjacent two fins 2 is equal, and each fin 2 is distributed in parallel. The side of the fin 2 close to the bottom plate 1 is provided with a positioning block 21, the positioning block 21 is integrally formed with the fin 2, and the bottom plate 1 is provided with a positioning groove 11 for cooperating with the positioning block 21. The upper surface of the bottom plate 1 is detachably connected with two fixed plates 3 for limiting the positioning block 21 from separating from the positioning groove 11, the fixed plate 3 is in the shape of a Chinese character, the side of the fixed plate 3 away from the bottom plate 1 is provided with a chamfer to prevent the sharp edge from cutting the operator.

[0039] In combination with Figure 2 ​​、 Figure 3 and Figure 4 As shown in the drawings, the fixing plate 3 is provided with a limiting groove 31 for clamping the fin 2 near one side of the fin 2, and the limiting groove 31 penetrates the fixing plate 3. The side provided with the fin 2 is provided with two installation grooves 12 for clamping two ends of the fixing plate 3, and the two installation grooves 12 are respectively located on the two sides of the bottom plate 1. The fixing plate 3 is connected with the bottom plate 1 through a fixing assembly 4, and the fixing assembly 4 includes two locking pieces 41 which are threadedly connected with the bottom plate 1. The locking piece 41 is a bolt, and the fixing plate 3 is provided with a passage 32 for the locking piece 41 to pass through, and the passage 32 is a waist-shaped hole 321.

[0040] The implementation principle of the heat exchanger for the frequency converter according to the embodiment of the present application is as follows:

[0041] When one of the fins 2 is damaged, the locking piece 41 is loosened, and the locking piece 41 is separated from the bottom plate 1, so that the fixing plate 3 can be removed from the bottom plate 1. The damaged fin 2 can be removed from the bottom plate 1, and a new fin 2 is installed on the bottom plate 1. In the installation process, the positioning block 21 is clamped into the positioning groove 11, and the outer surface of the positioning block 21 is attached to the inner wall of the positioning groove 11, so that the fin 2 is accurately installed at the corresponding position. The inner wall of the positioning groove 11 limits the movement of the positioning block 21, and also improves the stability of the fin 2 installed on the bottom plate 1. The fixing plate 3 is reinstalled on the bottom plate 1 through the locking piece 41, and the fixing plate 3 again plays a fixing role for the fin 2, so as to realize the replacement of the fin 2, save materials and reduce costs.

[0042] Embodiment 2

[0043] The embodiment is different from embodiment 1 in that the fixing assembly 4 comprises two fixing blocks 42 connected to the bottom plate 1 in relative sliding mode and a moving structure 43 for driving the corresponding fixing block 42 to slide towards the direction close to or away from the fixing plate 3, the bottom plate 1 is provided with a sliding groove 13 for sliding cooperation with the fixing block 42, the sliding groove 13 is communicated with the mounting groove 12, the fixing plate 3 is provided with a fixing groove 33 for clamping the corresponding fixing block 42. The moving structure 43 comprises a first elastic member 431 and a driving member 432 for driving the fixing block 42 to slide away from the fixing plate 3, the first elastic member 431 is a spring, one end of the first elastic member 431 is fixedly connected with the inner wall of the side of the sliding groove 13 away from the mounting groove 12, the other end is fixedly connected with the side of the fixing block 42 away from the mounting groove 12, the upper surface of the fixing block 42 is provided with a guide surface 421, and the guide surface 421 is located at the end of the fixing block 42 away from the first elastic member 431. The driving member 432 is a driving rod 4321, the bottom plate 1 is provided with a through hole 14 for sliding cooperation with the driving rod 4321, the through hole 14 is communicated with the sliding groove 13, the side of the fixing block 42 close to the driving rod 4321 is provided with an inclined surface 422, and the inclined surface 422 is located at the end of the fixing block 42 away from the first elastic member 431. The side of the driving rod 4321 away from the fixing block 42 is provided with a boss 4322, the boss 4322 is integrally formed with the driving rod 4321, the bottom plate 1 is provided with a countersunk groove 15 for sliding cooperation with the boss 4322, the countersunk groove 15 is communicated with the sliding groove 13, the boss 4322 is connected with the bottom plate 1 through a second elastic member 5, the second elastic member 5 is a spring, one end of the second elastic member 5 is fixedly connected with the side of the boss 4322 close to the fixing block 42, the other end is fixedly connected with the inner wall of the side of the countersunk groove 15 close to the fixing block 42, and when the second elastic member 5 is not pressed, the side of the boss 4322 away from the driving rod 4321 is flush with the side of the bottom plate 1 away from the fin 2.

[0044] The above are preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered into the protection scope of the application.

Claims

1. A heat exchanger for use in a frequency converter, characterized in that: Includes a base plate (1), the base plate (1) is provided with a plurality of fins (2), each of the fins (2) is provided with a positioning block (21), the base plate (1) is provided with a positioning groove (11) for cooperating with the positioning block (21), the base plate (1) is detachably connected with a fixing plate (3) for restricting the positioning block (21) from disengaging from the positioning groove (11), the fixing plate (3) is connected to the base plate (1) through a fixing component (4).

2. The heat exchanger for a frequency converter according to claim 1, characterized in that: The fixing assembly (4) includes two locking members (41) threaded onto the base plate (1), and the fixing plate (3) is provided with a channel (32) for the locking members (41) to pass through.

3. The heat exchanger for a frequency converter according to claim 2, characterized in that: The channel (32) is a waist-shaped hole (321).

4. The heat exchanger for a frequency converter according to claim 1, characterized in that: The base plate (1) is provided with a mounting groove (12) for the fixing plate (3) to be inserted.

5. The heat exchanger for a frequency converter according to claim 1, characterized in that: The fixing plate (3) is provided with a limiting groove (31) for the corresponding fin (2) to be engaged.

6. The heat exchanger for a frequency converter according to claim 1, characterized in that: The fixing component (4) includes a fixing block (42) slidably connected to the base plate (1) and a moving structure (43) for driving the fixing block (42) to slide. The moving structure (43) is connected to the base plate (1). The base plate (1) is provided with a sliding groove (13) for sliding cooperation with the fixing block (42). The fixing plate (3) is provided with a fixing groove (33) for the fixing block (42) to be engaged.

7. The heat exchanger for a frequency converter according to claim 6, characterized in that: The moving structure (43) includes a first elastic element (431) and an active element (432) for driving the fixed block (42) to slide away from the fixed plate (3). The active element (432) is connected to the base plate (1). One end of the first elastic element (431) is connected to the fixed block (42), and the other end is connected to the inner wall of the groove (13).

8. The heat exchanger for a frequency converter according to claim 7, characterized in that: The fixing block (42) has a guide surface (421) on the side away from the first elastic member (431) for abutting against the fixing plate (3).

9. The heat exchanger for a frequency converter according to claim 7, characterized in that: The active component (432) is an active rod (4321). The base plate (1) is provided with a through hole (14) for sliding cooperation with the active rod (4321). The through hole (14) is connected to the slide groove (13). The fixing block (42) is provided with an inclined surface (422) for abutting against the active rod (4321).

10. The heat exchanger for a frequency converter according to claim 9, characterized in that: One end of the active rod (4321) is provided with a boss (4322), and the base plate (1) is provided with a countersunk groove (15) for sliding cooperation with the boss (4322). The countersunk groove (15) is connected to the sliding groove (13), and the boss (4322) is connected to the base plate (1) through a second elastic member (5).

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