CN219040472U

CN219040472U - MOS pipe assembly with cooling water channel and charger

Info

Publication number: CN219040472U
Application number: CN202222969540.3U
Authority: CN
Inventors: 冯颖盈; 姚顺; 郭珏; 林泽锋; 唐刚朝
Original assignee: Shenzhen Vmax Power Co Ltd
Current assignee: Shenzhen Weimeisi New Energy Group Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-05-16
Anticipated expiration: 2032-11-08

Abstract

The utility model provides an MOS (metal oxide semiconductor) tube assembly with a cooling water channel and a charger, comprising the cooling water channel, the MOS tube assembly, an MOS tube support and an elastic pressing strip, wherein the MOS tube support and the elastic pressing strip are arranged along the water channel, the MOS tube is clamped between the MOS tube support and the cooling water channel, one end of the elastic pressing strip is fixed on a shell by a screw, and the other end of the elastic pressing strip presses the MOS tube support to the cooling water channel. The MOS tube assembly comprises the MOS tube support and the MOS tube, wherein the MOS tube support is provided with the MOS tube positioning groove and the double-sided adhesive, so that the MOS tube is fixed between the MOS tube support and the cooling water channel, the MOS tube is fully and stably contacted with the cooling water channel, and the MOS tube is ensured to dissipate heat in time.

Description

MOS pipe assembly with cooling water channel and charger

Technical Field

The utility model belongs to the technical field of electronic power element assembly, and particularly relates to a MOS (metal oxide semiconductor) tube assembly with a cooling water channel and a charger.

Background

The power electronic equipment with the MOS tube assembly usually generates heat obviously, the heat needs to be dissipated in time, the heat dissipation effect of the cooling water channel on the MOS tube assembly is obvious, for example, a large number of MOS tubes are arranged in a charger of the electric automobile and other equipment needing to be charged, the working temperature of the MOS tubes is high and can reach more than 100 degrees, and the heat needs to be dissipated in time. In order to ensure the cooling effect, the MOS tubes are required to be in full and stable contact with the cooling water channel, but the MOS tubes are usually more, and the cooling water channel is slender, so that the mounting structure of the MOS tubes and the cooling water channel is complex.

Therefore, a simple assembly structure of the MOS tube and the cooling water channel is a technical problem to be solved in the industry.

Disclosure of Invention

The utility model mainly aims to provide an MOS tube assembly with a cooling water channel, which has a simple structure, can ensure that an MOS tube is in full and stable contact with the cooling water channel, and ensures that the MOS tube dissipates heat in time.

The aim of the utility model can be achieved by the following technical scheme: the MOS tube assembly with the cooling water channel comprises the cooling water channel, an MOS tube and an MOS tube support, and is characterized by further comprising a heat conduction insulating film and an elastic pressing strip which are arranged along the cooling water channel, wherein the MOS tube is clamped between the MOS tube support and the cooling water channel, the middle of the MOS tube is contacted with a water channel wall of a shell through the heat conduction insulating film, one end of the elastic pressing strip is fixed on the shell through a screw, and the other end of the elastic pressing strip is used for pressing the MOS tube support onto the cooling water channel.

In some embodiments, the MOS tube bracket is provided with a MOS tube positioning groove and double-sided adhesive tape.

In some embodiments, the MOS tube support is provided with a pin positioning hole into which a pin of the MOS tube is inserted.

In some embodiments, the MOS tube holder, the cooling water channel and the elastic pressing strip are fixed on the carrier.

In some embodiments, the two ends of the MOS tube bracket and the carrier are positioned by positioning posts.

In some embodiments, the elastic pressing strip comprises a fixing part and an elastic fin arranged on the fixing part, wherein the fixing part is provided with a positioning hole for fixing, and the elastic fin is provided with a prefabricated radian.

In some embodiments, each of the elastic fins is provided with a heat dissipation hole.

In some embodiments, the cooling water channel is a U-shaped cooling water channel, and pins of all the MOS tubes are connected to the same pin positioning board.

In some embodiments, the pin positioning board is covered with a control circuit board, and the circuit board is electrically connected with the pins of the MOS tube.

A charger comprises the MOS tube assembly with the cooling water channel.

Compared with the prior art, the MOS pipe assembly with the cooling water channel has the following advantages:

according to the MOS tube bracket, the MOS tube positioning groove and the double-sided adhesive are arranged on the MOS tube bracket, so that the MOS tube is clamped between the MOS tube bracket and the cooling water channel, the MOS tube is in full and stable contact with the cooling water channel, and the MOS tube is enabled to radiate heat in time.

Drawings

In the drawings, like reference numerals may describe similar components in different views in order to facilitate an understanding of the principles thereof and which are not necessarily drawn to scale. The drawings illustrate generally, by way of example and not limitation, embodiments discussed herein.

Fig. 1 is a schematic diagram of a charger of the present embodiment.

Fig. 2 is an exploded view of the charger of the present embodiment.

Fig. 3 is a schematic view of a MOS tube holder.

Fig. 4 is a schematic view of a MOS tube holder provided with a MOS tube.

Fig. 5 is a schematic view of an elastic fin with a screw.

Fig. 6 is a schematic view of an elastic fin.

In the figure, 1, a cooling water channel; 101. an insulating layer; 2. a MOS tube; 201. pins; 3. a MOS tube bracket; 301. pin positioning holes; 302. a positioning groove; 303. double faced adhesive tape; 4. an elastic pressing strip; 401. a fixing part; 402. elastic seesaw, 5, import and export; 6. a bracket positioning column; 7. a housing; 8. a control circuit board; 9. and (5) a screw.

Detailed Description

The following are specific examples of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these examples, and the following embodiments do not limit the utility models according to the claims. Furthermore, all combinations of features described in the embodiments are not necessarily essential to the inventive solution.

It will be appreciated by those of ordinary skill in the art that all directional references (e.g., above, below, upward, downward, top, bottom, left, right, vertical, horizontal, etc.) are descriptive of the drawings to aid the reader in understanding, and do not represent (e.g., positional, azimuthal, use, etc.) limitations on the scope of the utility model defined by the appended claims. Additionally, some ambiguous terms (e.g., substantially, certain, generally, etc.) may refer to slight imprecision or slight deviation of conditions, amounts, values, or dimensions, etc., some of which are within manufacturing tolerances or tolerances.

Examples

As shown in fig. 1 to 6, in this embodiment, taking an MOS tube assembly applied in a charger as an example, the MOS tube assembly includes a cooling water channel 1 for circulating cooling water, and an MOS tube 2 for dissipating heat by using the cooling water channel, and further includes an MOS tube support 3 and an elastic pressing strip 4 disposed along the water channel, one end of the elastic pressing strip 4 is fixed, the other end of the elastic pressing strip presses the MOS tube support 3 toward the cooling water channel 1, and a side insulating layer 101 is disposed outside the cooling water channel 1.

Be provided with MOS pipe 2 constant head tank 302 and double faced adhesive tape 303 on the MOS pipe support 3, be used for fixing the MOS pipe, thereby make MOS pipe 2 presss from both sides between MOS pipe support 3 with cooling water course 1 for MOS pipe 2 and the abundant stable contact of cooling water course 1 guarantee that MOS pipe 2 dispels the heat in time.

The MOS tube support 3 is provided with a pin positioning hole 301 for inserting the pin 201 of the MOS tube 2, so as to position the pin 201 of the MOS tube 2.

The cooling water channel 1 is U-shaped, and an inlet and an outlet 5 of the cooling water channel 1 are arranged at the end part of the casing 7.

The two ends of the MOS tube support 3 are provided with support positioning columns 6, and the supporting body is provided with positioning holes for the support positioning columns 6 to pass through so as to position the MOS tube support 3.

The elastic pressing strip 4 is L-shaped, the elastic pressing comprises a fixing part 401 and elastic fins 402 arranged on the fixing part 401, the elastic deformation capability of the pressing strip can be improved by adopting the separate elastic fins 402 instead of the whole, the fixing part 401 is provided with a positioning hole for fixing so as to be fixed on a supporting body through a screw 9, and the elastic fins 402 have a prefabricated radian so as to improve the elastic force.

Each of the elastic fins 402 is provided with a heat dissipation hole, which is not only beneficial to heat dissipation, but also beneficial to saving materials and improving the elastic deformation capability of the pressing strip.

All pins 201 of the MOS tube 2 can be connected to the same pin 201 positioning board, positioning jacks are arranged on the pin 201 positioning board, and the pins 201 penetrate through the positioning jacks to be positioned, so that all pins 201 of the MOS tube 2 are fixed in opposite positions. The pin 201 positioning plate is covered with a control circuit board 8, the circuit board is electrically connected with the pins 201 of the MOS tube 2, and welding holes for the pins 201 to be inserted are formed in the circuit board, so that the pins 201 can be welded on the circuit board, the function of the MOS tube 2 in a control circuit is realized, and the PCB circuit board is locked by screws and fixedly connected on the casing 7.

The assembly steps of this embodiment are as follows:

step one: sticking 1 layer of insulating heat dissipation film on the wall of the shell water channel;

step two: firstly, mounting an MOS tube into an MOS tube positioning groove of the MOS tube bracket;

step three: placing the assembled MOS tube assembly into a positioning hole of the shell for positioning;

step four: installing an elastic pressing strip, covering a pin positioning cover plate, and pressing the MOS pipe assembly on the wall of the water channel by a pressing strip locking screw;

step five: installing a control circuit board into the shell;

step six: the electric batch is used for locking the control circuit board on the shell;

step seven: and welding the MOS tube pins with the control circuit board bonding pads.

It will be appreciated by those of ordinary skill in the art that all directional references (e.g., above, below, upward, downward, top, bottom, left, right, vertical, horizontal, etc.) are descriptive of the drawings to aid the reader in understanding, and do not denote (e.g., position, orientation, use, etc.) limitation of the scope of the utility model defined by the appended claims, only for convenience of description and simplicity of description, and unless otherwise indicated, these orientation terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, the orientation terms "inside, outside" referring to the inside and outside of the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Additionally, some ambiguous terms (e.g., substantially, certain, generally, etc.) may refer to slight imprecision or slight deviation of conditions, amounts, values, or dimensions, etc., some of which are within manufacturing tolerances or tolerances. It should be noted that, the terms "first," "second," and the like are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, so they should not be construed as limiting the scope of the present application.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The MOS tube assembly with the cooling water channel comprises the cooling water channel, an MOS tube and an MOS tube support, and is characterized by further comprising a heat conduction insulating film and an elastic pressing strip which are arranged along the cooling water channel, wherein the MOS tube is clamped between the MOS tube support and the cooling water channel, the middle of the MOS tube is contacted with a water channel wall of a shell through the heat conduction insulating film, one end of the elastic pressing strip is fixed on the shell through a screw, and the other end of the elastic pressing strip is used for pressing the MOS tube support onto the cooling water channel.

2. The MOS tube assembly with the cooling water channel of claim 1, wherein the MOS tube holder is provided with a MOS tube positioning groove and a double-sided adhesive tape.

3. The MOS tube assembly with the cooling water channel of claim 1, wherein a pin positioning hole for inserting a pin of the MOS tube is provided on the MOS tube holder.

4. The MOS transistor assembly of claim 1, further comprising a carrier, wherein the MOS transistor holder, the cooling channel, and the elastic bead are secured to the carrier.

5. The MOS transistor assembly of claim 4, wherein the MOS transistor holder is positioned at both ends with the carrier by positioning posts.

6. The MOS tube assembly of claim 1, wherein the elastic bead comprises a fixing portion and elastic fins arranged on the fixing portion, the fixing portion has a positioning hole for fixing, and the elastic fins have a prefabricated radian.

7. The MOS transistor assembly of claim 6, wherein each of the resilient fins has a heat dissipating aperture disposed therein.

8. The MOS transistor assembly of claim 1 wherein the cooling channel is a U-shaped cooling channel, and wherein all of the MOS transistor pins are connected to a common pin locating plate.

9. The MOS transistor assembly of claim 8, wherein the pin locating plate is covered with a control circuit board, the control circuit board being electrically connected to pins of the MOS transistor.

10. A charger comprising a MOS tube assembly with a cooling water channel as claimed in any one of claims 1 to 9.