CN214254402U - Small-size heat abstractor and contain device's alternating current motor - Google Patents

Abstract

The utility model discloses a small-size heat abstractor and contain device's alternating current motor, this small-size heat abstractor include silicon controlled assembly, with silicon controlled assembly fixed connection's radiating fin, radiator fan, silicon controlled assembly includes at least a pair of parallelly connected one-way silicon controlled rectifier chip. Adopt radiating fin to directly dispel the heat to silicon controlled rectifier assembly, it can promote radiating efficiency to increase heat radiating area, adopt radiator fan to increase the flow of air convection simultaneously, radiating efficiency has greatly been improved, whole compact structure is simple, convenient ann tears open, can satisfy the installation requirement of little space, simultaneously because silicon controlled rectifier assembly comprises a pair of one-way silicon controlled rectifier chip, consequently only have one in a pair of silicon controlled rectifier chip of during operation and keep the state of generating heat, the two state of generating heat can be carried out alternately, make radiating fin and cooling fan can satisfy the great operating power requirement of motor under the condition of less volume.

Description

Small-size heat abstractor and contain device's alternating current motor

Technical Field

The utility model relates to a heat dissipation processing technology field especially relates to a small-size heat abstractor and contain device's alternating current motor.

Background

In the prior art, a natural cooling mode is mostly adopted for a contactless switch controlled heat dissipation system of an alternating current motor, so that a large enough surface area for ventilation and heat exchange needs to be provided, and a certain heat dissipation effect can be achieved after a long enough time.

In order to solve the above problems, chinese patent document No. CN210156366U discloses a thyristor switch, which includes a heat sink, a heat dissipation blade and a heat dissipation fin are disposed on the heat sink, a motor mounting seat and a louver mounting seat are further disposed at two ends of the heat dissipation blade, a louver is mounted on the heat dissipation blade, the louver is in a closed state under self weight when the blade is not started, the louver is opened after the blade is started, so that heat dissipation and ventilation can be performed normally, and dust fall is reduced by setting the louver.

However, the applicant seems that most of the dust can be removed when the fan blade is started, the structural effect of the louver is not ideal, and due to the arrangement of the louver and the arrangement of the radiating fins extending along the length direction of the fan blade, the whole radiating structure occupies a large space and is difficult to place in a controller of a contactless switch-controlled alternating current motor, so that the space occupied by the structure is large, and the production is not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to solve the great defect of the heat radiation structure volume that adopts among the prior art, the utility model provides a small-size heat abstractor and contain device's alternating current motor.

The utility model discloses a technical scheme be, a small-size heat abstractor, including silicon controlled rectifier subassembly, with silicon controlled rectifier subassembly fixed connection's radiating fin, radiator fan's air-out/air inlet direction with radiating fin is just to setting up, silicon controlled rectifier subassembly includes at least a pair of parallelly connected one-way silicon controlled rectifier chip.

Preferably, the radiating fins comprise a substrate and fins, the silicon controlled chip is attached and fixed to one side of the substrate, and the fins are integrally arranged on the other side of the substrate.

Preferably, the heat dissipation fins comprise a pair of base plates and fins, the fins of the pair of heat dissipation fins are opposite, and each pair of the silicon controlled rectifier chips is respectively attached and fixed to the side surfaces of the two base plates of the pair of heat dissipation fins.

Preferably, the substrate is opposite to the heat dissipation fan, and the area of the substrate is the same as the installation area required by the heat dissipation fan.

Preferably, the side surfaces of the heat dissipation fins are abutted against the heat dissipation fan, and the area enclosed by the pair of side surfaces of the heat dissipation fins is the same as the installation area of the heat dissipation fan.

Preferably, the heat dissipation fins are provided with a plurality of mounting holes, and the heat dissipation fan and the silicon controlled chip are respectively fixed at different mounting holes of the heat dissipation fins through bolts.

Preferably, four corners of the heat dissipation fan are respectively provided with a stud, and when the heat dissipation fan is attached to the heat dissipation fins, each stud corresponds to the mounting hole.

Preferably, the substrate is made of aluminum.

The utility model discloses still provide AC motor, it contains as before small-size heat abstractor.

Preferably, the heat sink further comprises a controller, and the small heat sink is mounted in the controller.

Compared with the prior art, the utility model discloses a radiating fin directly dispels the heat to silicon controlled rectifier assembly, it can promote the radiating efficiency to increase heat radiating area, adopt radiator fan to increase the flow of air convection simultaneously, radiating efficiency has greatly been improved, whole compact structure is just simple, convenient ann tears open, can satisfy the installation requirement in little space, simultaneously because silicon controlled rectifier assembly comprises a pair of one-way silicon controlled rectifier chip, consequently only have one in a pair of silicon controlled rectifier chip of during operation and keep the state of generating heat, the two state of generating heat can be carried out alternately, make radiating fin and radiator fan can satisfy the great operating power requirement of motor under the condition of less volume.

Drawings

The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings, in which:

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of example 2;

fig. 4 is an exploded view of fig. 3.

1. A silicon controlled chip; 2. a heat radiation fan; 3. a heat dissipating fin; 4. a substrate; 5. mounting holes; 6. a stud; 7. and (4) bolts.

Detailed Description

A small-sized heat dissipating device is applied to a contactless switch controlled heat dissipating system of an alternating current motor and comprises a silicon controlled assembly, heat dissipating fins 3 and a heat dissipating fan 2, wherein the heat dissipating fins 3 and the heat dissipating fan 2 are fixedly connected with the silicon controlled assembly, the air outlet/air inlet direction of the heat dissipating fan is opposite to the heat dissipating fins, and the silicon controlled assembly comprises at least one pair of unidirectional silicon controlled chips 1 which are connected in parallel.

Because the controllable silicon subassembly adopts the single controllable silicon chip that sets up in pairs, it is on inserting motor control circuit board back, the cycle of generating heat of two controllable silicon chips of operating time is staggered, consequently the radiating fin that the rear is connected and radiator fan's heat dissipation capacity can not be very big, can reduce nearly half the heat dissipation capacity, consequently whole heat radiation structure can miniaturize and the lightweight, can the direct mount in the controller of motor, very big reduction the volume of motor, improve the compactness between each structural component.

The radiating fin comprises a substrate 4 and fins, the silicon controlled rectifier chip is attached and fixed to one side of the substrate, and the fins are integrally arranged on the other side of the substrate.

Example 1: as shown in fig. 1-2, the device comprises a heat dissipation fan 2, a heat dissipation fin 3 and a pair of silicon controlled rectifier chips 1, wherein three pins extend from the lower end of each silicon controlled rectifier chip for being soldered with a control circuit board of a motor. The substrate 4 is vertically arranged, two mounting holes 5 are formed in one side of the substrate, the tops of the two silicon controlled chips 1 are fixedly mounted on the side face through bolts 7, and the two silicon controlled chips are attached to the side face of the substrate. The other side of the base plate 4 is connected with a plurality of fins which are horizontally and integrally arranged, the radiating fan is opposite to the fins, four corners of the radiating fan are respectively provided with a stud 6, one side of the radiating fin, which is provided with the fins, is correspondingly provided with four mounting holes 5, and when the radiating fan is attached to the fins, the fixed connection of the radiating fan between the radiating fins is realized through bolts 7.

Further in order to enhance the heat dissipation effect, a blank area on one side, connected with the silicon controlled chip, of the substrate can also be provided with a plurality of fins in an extending mode, and the fins can be arranged on the substrate as much as possible on the premise that the silicon controlled chip is not infected for installation and heat dissipation.

Through foretell setting, overall structure is comparatively compact, the base plate with radiator fan is just right, just the area of base plate with the required installation area of radiator fan is the same, also can reach make full use of radiator fan and radiating fin's effect.

Example 2: as shown in fig. 3-4, the cooling device comprises a cooling fan 2, two cooling fins 3 and a pair of silicon controlled rectifier chips 1, wherein three pins extend from the lower end of each silicon controlled rectifier chip and are used for being welded with a control circuit board of a motor.

Specifically, every radiating fin's structure is the same, including a vertical base plate 4, an organic whole is provided with multichannel fin on the base plate, and this embodiment, two radiating fin relative symmetrical arrangement, it is equipped with one side of fin just right, and is a pair of silicon controlled rectifier chip 1 then laminates respectively and is fixed in a pair of on the side of two base plates 4 of radiating fin. Namely, a pair of radiating fins is enclosed to form a radiating area, and the two silicon controlled rectifier chips are attached and fixed on the back surface of the radiating area through the matching of the bolts 7 and the mounting holes formed on the back surface of the substrate.

The heat dissipation fan is abutted against the side faces of the two heat dissipation fins, the area of the area surrounded by the two heat dissipation fins is the same as that of the heat dissipation fan, furthermore, the four corners of the heat dissipation fan are respectively provided with a stud 6, the pair of heat dissipation fins are also respectively provided with a mounting hole 5 opposite to the stud, when the heat dissipation fan is attached to one side of the two heat dissipation fins, the studs and the mounting holes are in one-to-one correspondence, and then the fixed connection can be realized through bolts.

In the above embodiments, the substrate is made of metal with good thermal conductivity, such as aluminum, so as to improve the heat dissipation efficiency. Moreover, the controllable silicon component can only contain one controllable silicon chip, such as a bidirectional controllable silicon chip, and the chip can continuously generate heat when the motor works at the moment, but also can play a better heat dissipation effect.

Of course, the connection mode between the silicon controlled chip and the heat dissipation fins, and the connection mode between the heat dissipation fins and the heat dissipation fan may be any other direct fixing mode, such as welding, or any other connection mode that is convenient to mount and dismount, such as bonding, and the present embodiment is not limited thereto.

Similarly, the embodiment also discloses an alternating current motor, which comprises a controller and the small heat dissipation device, wherein the small heat dissipation device is arranged in the controller.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The small-sized heat dissipation device is characterized by comprising a silicon controlled assembly, heat dissipation fins and a heat dissipation fan, wherein the heat dissipation fins and the heat dissipation fan are fixedly connected with the silicon controlled assembly, the air outlet/air inlet direction of the heat dissipation fan is opposite to the heat dissipation fins, and the silicon controlled assembly comprises at least one pair of one-way silicon controlled chips connected in parallel.

2. The small-sized heat dissipation device according to claim 1, wherein the heat dissipation fins comprise a substrate and fins, the silicon controlled rectifier chips are attached and fixed to one side of the substrate, and the fins are integrally arranged on the other side of the substrate.

3. The small heat dissipation device as claimed in claim 1, wherein the heat dissipation fins include a pair of base plates and fins, the pair of heat dissipation fins are opposite to each other, and each pair of the silicon controlled rectifier chips is respectively attached to and fixed on the side surfaces of the two base plates of the pair of heat dissipation fins.

4. The small heat sink as claimed in claim 2, wherein the substrate is opposite to the heat dissipating fan, and the substrate has an area equal to a mounting area required for the heat dissipating fan.

5. The small heat sink according to claim 3, wherein the side surfaces of the heat dissipating fins are in contact with the heat dissipating fan, and an area surrounded by the pair of side surfaces of the heat dissipating fins is equal to an installation area of the heat dissipating fan.

6. The small heat sink according to claim 1, wherein the heat sink fins have a plurality of mounting holes, and the heat sink fan and the silicon controlled rectifier chip are respectively fixed at different mounting holes of the heat sink fins by bolts.

7. The small heat sink according to claim 6, wherein a stud is disposed at each of four corners of the heat dissipating fan, and when the heat dissipating fan is attached to the heat dissipating fins, each stud corresponds to the mounting hole.

8. A small heat sink according to claim 2 or 3, wherein the substrate is made of aluminum.

9. An alternating current motor comprising the compact heat sink of claim 1.

10. An alternating current machine according to claim 9, further comprising a controller, said small heat sink being mounted within said controller.

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