CN212034607U

CN212034607U - Box body with cooling water channel structure and motor controller applying same

Info

Publication number: CN212034607U
Application number: CN202020145754.7U
Authority: CN
Inventors: 黄锦元
Original assignee: Prestolite Electric Weifang Ltd
Current assignee: Prestolite Electric Weifang Ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-11-27
Anticipated expiration: 2030-01-22

Abstract

The utility model discloses a box body with a cooling water channel structure and a motor controller using the same, which comprises a box body and a water tank concavely arranged at the bottom of the box body, wherein the water tank is provided with a water outlet and a water inlet, an opening is arranged on a bottom plate of the box body, the opening is communicated with the water tank, a water channel cover plate for sealing the opening is arranged on the bottom plate of the box body, at least one layer of sealant is coated at the contact surface where the water channel cover plate and the bottom plate are contacted with each other, the sealant is hot melt adhesive, the water channel cover plate is welded on the bottom plate in a friction stir welding mode, when a welding tool rotating at high speed passes through the connection surface of the box body and the water channel cover plate, the connection surface of the box body and the water channel cover plate is locally melted due to the heat generation friction of the welding tool, the heat is transferred to the hot melt adhesive, and the molten hot melt adhesive is, thereby improving the sealing performance of the controller.

Description

Box body with cooling water channel structure and motor controller applying same

Technical Field

The utility model relates to a take box of cooling water course structure and use its machine controller.

Background

The existing motor controller comprises a box body, a control board, an IGBT module, a capacitor and the like are installed in the box body, wherein the IGBT module is a device with larger heat generation, and in order to better radiate the IGBT module, a cooling water channel is usually concavely arranged at the bottom of the box body, heat is taken away through liquid flowing in the cooling water channel, and in order to prevent liquid in the cooling water channel from leaking, a water channel cover plate is generally adopted to block an opening of the cooling water channel, a sealing gasket is usually additionally arranged between the water channel cover plate and the opening in order to ensure good sealing performance of the cooling water channel, but based on the consideration of production efficiency and cost, the box body of the motor controller is usually formed by high-pressure die-casting, the joint of the box body and the water channel cover plate is usually connected by friction stir welding, the material of the box body of the motor controller is high-pressure die-cast aluminum alloy, shrinkage porosity exists, the box body still can have defects such as gas pocket after the welding is accomplished, and the liquid in the cooling water course is easy to leak from the gas pocket to easily lead to the quality problem of sealed inefficacy.

Disclosure of Invention

The utility model aims at providing a take box of cooling water course structure and use its machine controller for solve among the prior art sealed not good enough technical problem of effect.

The technical scheme of the utility model is realized like this:

a box body with a cooling water channel structure comprises a box body and a water tank which is concavely arranged at the bottom of the box body, wherein the water tank is provided with a water outlet and a water inlet, an opening is formed in a bottom plate of the box body, the opening is communicated with the water tank, a water channel cover plate for sealing the opening is arranged on the bottom plate of the box body, and at least one layer of sealant is coated on the contact surface where the water channel cover plate and the bottom plate are contacted with each other.

Preferably, a first groove for installing the water channel cover plate is formed in the bottom plate of the box body, the opening is located on the bottom surface of the first groove, and the sealant is coated on the bottom surface of the first groove.

Preferably, the sealant is a hot melt adhesive.

Preferably, the water channel cover plate is welded on the bottom plate in a friction stir welding mode.

Preferably, a plurality of division bars are arranged in the water tank, the division bars divide the water tank into a plurality of water diversion channels which are connected end to end, the water diversion channels are formed by the water diversion channels, the division bars on the side edges of the water diversion channels are provided with a plurality of convex wave crests and a plurality of concave second grooves to form a wave-shaped structure, and the concave second grooves are arranged between two adjacent wave crests of the same division bar.

Preferably, a second protrusion protrudes from a side wall of the water tank.

Preferably, a water nozzle is mounted on a side plate of the box body, and the water nozzle is respectively communicated with a water outlet and a water inlet of the water tank.

A motor controller comprises a box body, wherein a control circuit board and a driving circuit board are installed in the box body, and the box body is of the structure with the cooling water channel.

Compared with the prior art, the utility model, there is following advantage:

1. a box body with a cooling water channel structure comprises a box body and a water tank concavely arranged at the bottom of the box body, wherein the water tank is provided with a water outlet and a water inlet, an opening is arranged on the bottom plate of the box body, the opening is communicated with the water tank, a water channel cover plate used for sealing the opening is arranged on the bottom plate of the box body, at least one layer of sealant is coated on the contact surface of the water channel cover plate and the bottom plate, the sealant is hot melt adhesive, the water channel cover plate is welded on the bottom plate in a friction stir welding way, when the welding tool rotating at high speed passes through the joint surface of the box body and the water channel cover plate, the joint surface of the box body and the water channel cover plate is locally melted due to the heat generated by the friction of the welding tool, and the heat of the controller is transferred to the hot melt adhesive to melt the hot melt adhesive, and the melted hot melt adhesive is filled in the shrinkage and relaxation air hole of the box body, so that the sealing performance of the controller is improved.

2. Other advantages of the present invention are described in detail in the examples section of this specification.

Drawings

Fig. 1 is an exploded view of a first embodiment of the present invention;

fig. 2 is a front view provided in the first embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A provided in FIG. 2;

FIG. 4 is an enlarged view of portion B provided in FIG. 3;

fig. 5 is a perspective view of a box body according to a first embodiment of the present invention;

fig. 6 is another visual perspective view of the first box according to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 6, the embodiment provides a box with a cooling water channel structure, which includes a box body 1 and a water tank 2 concavely disposed at the bottom of the box body 1, wherein the water tank 2 is provided with a water outlet 24 and a water inlet 25, an opening 111 is disposed on a bottom plate 11 of the box body 1, the opening 111 is communicated with the water tank 2, a water channel cover plate 3 for sealing the opening 111 is mounted on the bottom plate 11 of the box body 1, at least one layer of sealant 4 is coated on a contact surface where the water channel cover plate 3 and the bottom plate 11 are in contact with each other, a first groove 110 for mounting the water channel cover plate 3 is disposed on the bottom plate 11 of the box body 1, the opening 111 is located on the bottom surface of the first groove 110, the sealant 4 is coated on the bottom surface of the first groove 110, the sealant 4 is a hot melt adhesive, the water channel cover plate 3 is welded on the bottom plate 11 by friction stir welding, when the soldering set rotating at a high speed passes through the joint surface of the box body and the water channel cover plate 3, the joint surface of the box body 1 and the water channel cover plate 3 is locally melted due to the heat generated by the friction of the soldering set, the heat is transferred to the hot melt adhesive, the hot melt adhesive is melted, and the melted hot melt adhesive is filled in the shrinkage-relaxation air hole of the box body 1, so that the sealing performance of the controller is improved.

The water tank 2 is internally provided with a plurality of parting strips 21, the water tank 2 is divided into a plurality of water diversion channels 20 connected end to end by the plurality of parting strips 21, the water tank 2 is formed by the plurality of water diversion channels 20, the parting strips 21 on the side edges of the water diversion channels 20 are provided with a plurality of raised wave crests 22 and a plurality of sunken second grooves 23 to form a wave-shaped structure, and the sunken second grooves 23 are arranged between two adjacent wave crests 22 of the same parting strip 21, so that the effect of turbulent flow can be increased, and the heat dissipation effect of the water channel is better.

The side wall of the water tank 2 is protruded with a protrusion 26, and the protrusion 26 can further increase the turbulence.

The wave crests 22 on the parting strips 21 on both sides of the same water diversion channel 24 are arranged in a staggered manner. The wave crests 22 on two sides of one water diversion channel 20 are arranged corresponding to the second grooves 23, so that the cooling water channel is filled with water flow, the dead angle is reduced, and the length of the water channel is prolonged. The wave crest 231 is an arc-shaped protrusion. The arcuate projections reduce the resistance of the peaks 231 to water flow.

The water faucet is characterized in that the box body 1 is provided with a cavity 10 for mounting a circuit board,

water faucets

5A and 5B are mounted on one side plate of the box body 1, the water faucets 5A and 5B are respectively communicated with a water outlet 24 and a water inlet 25 of the water tank 2, and the water outlet 24 and the water inlet 25 are arranged on one inner side surface of the water tank 2.

Example two:

the embodiment provides a motor controller, including the box, install control scheme board and drive circuit board in the box, the box be embodiment one the box of area cooling water course structure. Through the improvement to the sealed mode of water course apron and box, optimized machine controller's sealed effect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a take box of cooling water course structure, it includes box (1) and the concave basin (2) of establishing in box (1) bottom, basin (2) are equipped with delivery port (24) and water inlet (25), have seted up an opening (111) on bottom plate (11) of box (1), opening (111) with basin (2) intercommunication is installed on bottom plate (11) of box (1) and is used for sealing water course apron (3) of opening (111), its characterized in that: and at least one layer of sealant (4) is coated on the contact surface where the water channel cover plate (3) and the bottom plate (11) are contacted with each other.

2. The tank body with the cooling water channel structure according to claim 1, wherein: the water channel cover plate structure is characterized in that a first groove (110) used for installing a water channel cover plate (3) is formed in a bottom plate (11) of the box body (1), the opening (111) is located on the bottom surface of the first groove (110), and the sealant (4) is coated on the bottom surface of the first groove (110).

3. The tank with the cooling water channel structure as set forth in claim 2, wherein: the sealant (4) is hot melt adhesive.

4. The tank with the cooling water channel structure as claimed in claim 1, 2 or 3, wherein: the water channel cover plate (3) is welded on the bottom plate (11) in a friction stir welding mode.

5. The tank with the cooling water channel structure as set forth in claim 4, wherein: the water cooling device is characterized in that a plurality of division bars (21) are arranged in the water tank (2), the water tank (2) is divided into a plurality of water distribution channels (20) which are connected end to end by the division bars (21), the water cooling channels are formed by the water distribution channels (20), a plurality of raised wave crests (22) and a plurality of sunken second grooves (23) are arranged on the division bars (21) on the side edges of the water distribution channels (20) to form a wavy structure, and the sunken second grooves (23) are arranged between two adjacent wave crests (22) of the same division bar (21).

6. A tank (1) with a cooling water channel structure according to claim 5, characterized in that: the side wall of the water tank (2) is provided with a bulge (26) in a protruding way.

7. The tank with the cooling water channel structure as set forth in claim 6, wherein: and water nozzles (5A, 5B) are mounted on one side plate of the box body (1), and the water nozzles (5A, 5B) are respectively communicated with a water outlet (24) and a water inlet (25) of the water tank (2).

8. The utility model provides a motor controller, includes the box, installs control scheme board and drive circuit board, its characterized in that in the box: the tank body is the tank body with the cooling water channel structure as claimed in any one of claims 1 to 7.