CN213661452U

CN213661452U - Structure of water-cooling DCDC converter

Info

Publication number: CN213661452U
Application number: CN202021970540.XU
Authority: CN
Inventors: 李�瑞; 杨正东; 赵赛赛
Original assignee: Anhui Nianye Electronic Technology Co ltd
Current assignee: Anhui Nianye Electronic Technology Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-07-09
Anticipated expiration: 2030-09-10

Abstract

The utility model relates to a structure of water-cooling DCDC converter includes the lower cover, the lower cover is connected with the casing, the PCBA board is located the casing, the sealing washer lower part is connected with casing upper portion, the sealing washer upper portion is connected with the upper cover along the lower cover edge be provided with notch ladder groove up, the edge in the casing bottom outside is provided with the ladder draw-in groove with ladder groove phase-match, the casing upper portion edge is provided with notch C type groove up, the fixed strip on the C type groove notch is provided with the bayonet socket, C type groove packing has the sealing washer, be provided with the sucking disc along the outer wall of sealing washer, the sucking disc adsorbs the inner wall in C type groove; the sealing ring is provided with a buckle matched with the bayonet; a clamping groove is formed along the edge of the sealing ring, and an inserting strip matched with the clamping groove is arranged at a position close to the edge of the bottom of the upper cover and is inserted into the clamping groove; the first C-shaped groove, the second C-shaped groove and the third C-shaped groove of the upper cover correspond to the first C-shaped strip, the second C-shaped strip and the third C-shaped strip on the shell in a one-to-one mode.

Description

Structure of water-cooling DCDC converter

Technical Field

The utility model belongs to the power electronics field relates to a structure of water-cooling DCDC converter.

Background

The DCDC converter is widely applied to the fields of remote and data communication, computers, office automation equipment, industrial instruments, military, aerospace and the like, and relates to various industries of national economy. The DCDC converter is divided into a step-up type DCDC converter, a step-down type DCDC converter, and a step-up and step-down type DCDC converter according to the magnitude of rated power. The DCDC converter also has wide application prospect in the fields of remote and digital communication, the requirement of the water-cooling DCDC converter which can be cooled is increased along with the application requirements in different fields, if the DCDC converter is connected insecure, the service life of the DCDC converter can be greatly reduced, and if the sealing effect is not good, the DCDC converter with the water-cooling system has the water leakage problem. Therefore, the structure of the water-cooling DCDC converter which has firm connection, good sealing effect and effectively plays a role in preventing water leakage is the problem to be solved in the field of power electronics,

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to improve prior art's defect, provide a structural connection is firm, the structure of a DCDC converter casing of leak protection water to the life of DCDC converter has been improved greatly.

The purpose of the utility model is realized like this: the structure of the water-cooled DCDC converter comprises a lower cover, wherein the lower cover is connected with a shell, a PCBA plate is positioned in the shell, the lower part of a sealing ring is connected with the upper part of the shell, the upper part of the sealing ring is connected with an upper cover, step grooves with upward notches are arranged along the edge of the lower cover, and the step grooves are four and are vertically and bilaterally symmetrical; the edge of the outer side of the bottom of the shell is provided with a stepped clamping groove matched with the stepped groove; the stepped groove is in snap connection with the stepped clamping groove; the edge of the upper part of the shell is provided with a C-shaped groove with an upward notch, the notch of the C-shaped groove is provided with a fixing strip, a plurality of bayonets are arranged along the outer side of the edge of the fixing strip, and the bayonets are bilaterally symmetrical; the C-shaped groove is filled with a sealing ring, a plurality of suckers are arranged at equal intervals along the outer wall of the sealing ring, and the suckers are adsorbed on the inner wall of the C-shaped groove; a plurality of buckles matched with the bayonets are arranged along the edge of the sealing ring; a clamping groove with an upward opening is arranged along the edge of the sealing ring and is positioned between the two buckles; the position close to the edge of the bottom of the upper cover is provided with a cutting matched with the clamping groove, and the cutting is inserted into the clamping groove; a first C-shaped groove, a second C-shaped groove and a third C-shaped groove with downward openings are sequentially formed in the bottom of the upper cover from outside to inside; the top of the shell is sequentially provided with a first C-shaped strip, a second C-shaped strip and a third C-shaped strip which are matched with the first C-shaped groove, the second C-shaped groove and the third C-shaped groove from outside to inside.

Furthermore, the first C-shaped strip, the second C-shaped strip and the third C-shaped strip of the shell are inserted into the first C-shaped groove, the second C-shaped groove and the third C-shaped groove of the upper cover.

Preferably, an arc-shaped groove with a downward notch is arranged at the end part of the second C-shaped groove; the end part of the second C-shaped strip is provided with a protrusion matched with the arc-shaped groove, and the protrusion is embedded into the arc-shaped groove.

Still further, the stepped groove of the lower cover and the stepped clamping groove of the shell are three steps.

Still further, it is characterized in that: the ladder groove of lower cover and every ladder face of the ladder draw-in groove of casing all be provided with the rib.

Still further, it is characterized in that: the sucking disc is circular and the middle of the sucking disc is of a sunken disc-shaped structure.

Still further, the sucking disc material be nitrile rubber.

Still further, there are 8 draw-in grooves, two of them are the longitudinal symmetry, and the other six are pairwise bilateral symmetry.

Still further, the edge of the lower cover and the edge of the lower part of the shell are fixed by screws.

Still further, the edge of the upper part of the shell and the edge of the upper cover are fixed through screws.

The technical effects of the utility model: the essential novel type lower cover is provided with step grooves with upward notches along the edge of the lower cover, and the step grooves are provided with four step grooves which are symmetrical up and down and left and right; the edge of the outer side of the bottom of the shell is provided with a stepped clamping groove matched with the stepped groove; the stepped groove is connected with the stepped clamping groove in a buckling manner, so that the firmness degree of the lower cover and the shell is increased; the edge of the upper part of the shell is provided with a C-shaped groove with an upward notch, a fixing strip is arranged on the periphery of the C-shaped groove, a plurality of bayonets are arranged along the outer side of the edge of the fixing strip, the bayonets are bilaterally symmetrical, and the bayonets on the shell are matched with the bayonets on the sealing ring; the sealing ring is filled in the C-shaped groove, the plurality of suckers are arranged at equal intervals along the outer wall of the sealing ring, the suckers are adsorbed on the inner wall of the C-shaped groove, the two suckers are equal in interval and are arranged in order, so that the sealing ring is firmly adsorbed on the inner wall of the C-shaped groove, the firmness degree of the sealing ring in the structure is increased, and the sealing effect is increased to play a role in preventing water leakage; a plurality of buckles matched with the bayonets are arranged along the edge of the sealing ring, and the bayonets of the sealing ring and the buckles of the shell are tightly clamped together, so that the sealing ring is more firmly fixed; a clamping groove with an upward opening is arranged along the edge of the sealing ring and is positioned between the two buckles; the inserting strip matched with the clamping groove is arranged at the position close to the edge of the bottom of the upper cover and is inserted into the clamping groove, so that the structural connection between the sealing ring and the upper cover is more compact and firm; the bottom of the upper cover is sequentially provided with a first C-shaped groove, a second C-shaped groove and a third C-shaped groove from outside to inside, wherein the first C-shaped groove, the second C-shaped groove and the third C-shaped groove are not intersected; the shell is characterized in that a first C-shaped strip, a second C-shaped strip and a third C-shaped strip which are matched with the first C-shaped groove, the second C-shaped groove and the third C-shaped groove are sequentially arranged from outside to inside at the top of the shell, the first C-shaped strip, the second C-shaped strip and the third C-shaped strip are respectively inserted into the first C-shaped groove, the second C-shaped groove and the third C-shaped groove, and form three water channels with the inner wall of the C-shaped groove, so that the upper cover and the shell are firmly connected together, the structure is firm, independent spaces can be formed among the water channels, the water leakage probability is reduced, and the water leakage prevention effect can be effectively achieved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a structural diagram of the structure of the water-cooled DCDC converter of the present invention;

fig. 2 is a structural view of an upper cover of the DCDC converter shown in fig. 1;

fig. 3 is a structure view of a packing of the DCDC converter shown in fig. 1;

fig. 4 is an enlarged view of a portion of a seal ring of the DCDC converter shown in fig. 3;

fig. 5 is a structural diagram of a PCBA board of the DCDC converter shown in fig. 1;

fig. 6 is a top view of a case of the DCDC converter shown in fig. 1;

fig. 7 is a bottom view of a case of the DCDC converter shown in fig. 1;

fig. 8 is a structural view of a lower cover of the DCDC converter shown in fig. 1;

FIG. 9 is an enlarged view of the stepped recess;

fig. 10 is an enlarged view of the stepped card slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. 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.

The structure of the water-cooled DCDC converter shown in fig. 1 includes a lower cover 50, the lower cover 50 is connected with a housing 40, a PCBA board 30 is located in the housing 40, the lower part of a sealing ring 20 is connected with the upper part of the housing 40, the upper part of the sealing ring 20 is connected with an upper cover 10, a stepped groove 51 with an upward notch is arranged along the edge of the lower cover 50 shown in fig. 8, four stepped grooves 51 are arranged and are vertically and bilaterally symmetrical, and the stepped grooves 51 are uniformly distributed on the lower cover 50; the edge of the outer side of the bottom of the shell 40 shown in fig. 7 is provided with a stepped clamping groove 41 matched with the stepped groove 51; the stepped groove 51 is connected with the stepped clamping groove 41 in a buckling manner, so that the shell 40 and the lower cover 50 are firmly fixed together; the edge of the upper portion of the casing 40 shown in fig. 6 is provided with a C-shaped groove 42 with an upward notch, the notch of the C-shaped groove 42 is provided with a fixing strip, a plurality of bayonets 411 are arranged along the outer side of the edge of the fixing strip, the bayonets 411 are bilaterally symmetrical, the bayonets 411 on the casing 40 are matched with the buckles 22 on the sealing ring 20 shown in fig. 3, the bayonets 411 and the buckles 22 are in one-to-one correspondence, and the buckles 22 are embedded into the ba; the C-shaped groove 42 shown in fig. 4 is filled with the sealing ring 20, a plurality of suckers 23 are arranged along the outer wall of the sealing ring 20 at equal intervals, the suckers 23 are adsorbed on the inner wall of the C-shaped groove 42, and the two suckers 23 are arranged regularly at equal intervals, so that the sealing ring 20 is firmly adsorbed on the inner wall of the C-shaped groove 42, the firmness of the sealing ring in the structure is increased, and the sealing effect is increased to play a role in preventing water leakage; a plurality of buckles 22 matched with the bayonets 411 are arranged along the edge of the sealing ring 20 shown in fig. 4 and 3, and the bayonets 411 of the sealing ring are tightly clamped with the buckles 22 of the shell 20, so that the sealing ring is fixed more firmly; a clamping groove 21 with an upward opening is arranged along the edge of the sealing ring 20 shown in fig. 3, and the clamping groove 21 is positioned between two buckles 22; the inserting strips 11 matched with the clamping grooves 21 are arranged at the position close to the edge of the bottom of the upper cover 10 shown in fig. 2, the inserting strips 11 are inserted into the clamping grooves 21, and the inserting strips 11 and the clamping grooves 21 are arranged in a one-to-one correspondence manner, so that the structural connection between the sealing ring and the upper cover is more compact and firmer; a first C-shaped groove 111, a second C-shaped groove 12 and a third C-shaped groove 13 with downward openings are sequentially arranged at the bottom of the upper cover 10 from outside to inside as shown in fig. 2; the top of the shell 40 is sequentially provided with a first C-shaped strip 43, a second C-shaped strip 44 and a third C-shaped strip 45 which are matched with the first C-shaped groove 111, the second C-shaped groove 12 and the third C-shaped groove 13 from outside to inside, namely, the first C-shaped groove 111 corresponds to the first C-shaped strip 43, the second C-shaped groove 12 corresponds to the second C-shaped strip 44, the third C-shaped groove 13 corresponds to the third C-shaped strip 45, and three water channels are formed with the inner wall of the C-shaped groove 42 to allow cold water to flow in.

Furthermore, the first C-shaped strip 43, the second C-shaped strip 44 and the third C-shaped strip 45 of the housing 40 are inserted into the first C-shaped groove 111, the second C-shaped groove 12 and the third C-shaped groove 13 of the upper cover 10, so that the upper cover 10 and the housing 40 are firmly fixed together, not only is the structure firm, but also independent spaces are formed among the water channels, the probability of water leakage is reduced, and the function of preventing water leakage can be effectively achieved.

Preferably, an arc-shaped groove 121 with a downward notch is formed at the end of the second C-shaped groove 12; the end of the second C-shaped strip 44 is provided with a protrusion 441 matched with the arc-shaped groove 121, the protrusion 441 is embedded into the arc-shaped groove 121, when cold water is injected into the C-shaped groove 42, the phenomenon that most of water flows into a middle water channel due to overlarge impact force of water is avoided, the protrusion 441 plays a buffering role on the water, and the water is dispersed and uniformly flows into each water channel.

Still further, the stepped groove 51 of the lower cover 50 and the stepped slot 41 of the housing 40 shown in fig. 9 and 10 are three steps, the stepped groove 51 is vertically provided with three stepped planes, the stepped slot 41 is vertically provided with three stepped planes, the stepped groove 51 is matched with the stepped slot 41, the stepped planes increase the contact area between the stepped groove 51 and the stepped slot 41, and thus the firmness between the lower cover 50 and the housing 40 is increased.

Still further, as shown in fig. 9 and 10, each stepped surface of the stepped groove 51 of the lower cover 50 and the stepped slot 41 of the housing 40 is provided with the

ribs

511 and 411, and the ribs 511 and the ribs 411 are arranged in a staggered manner, so that the friction between the contact surfaces of the stepped groove 51 and the stepped slot 41 is increased, and the lower cover 50 and the housing 40 are firmly clamped together.

Still further, the suction cup 23 is a circular and concave disc-shaped structure, and the structure utilizes the difference between the internal and external atmospheric pressures of the suction cup 23, so that the C-shaped sealing ring is adsorbed on the inner wall of the C-shaped groove 42, the firmness between the C-shaped sealing ring and the DCDC converter shell 40 is increased, and water leakage can be effectively prevented.

Furthermore, the sucking disc 23 is made of nitrile rubber, and the nitrile rubber has a large breaking force and is better adsorbed on the inner wall of the C-shaped groove 42.

Still further, the draw-in groove 21 be provided with 8, two of them are the longitudinal symmetry, remaining six are bilateral symmetry, draw-in groove 21 distributes evenly, can improve the firm degree of structure.

Still further, the edge of the lower cover 50 and the lower edge of the housing 40 are fixed by screws, and the structural firmness is increased by the screws.

Still further, the upper edge of the housing 40 and the edge of the upper cover 10 are fixed by screws, and the structural firmness is increased by the screws.

The utility model discloses water-cooling DCDC converter's structural connection is firm, the effectual water leakage that prevents to its life of great promotion.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, all of which are intended to be included within the scope of the invention.

Claims

1. The structure of the water-cooled DCDC converter comprises a lower cover (50), wherein the lower cover (50) is connected with a shell (40), a PCBA board (30) is positioned in the shell (40), the lower part of a sealing ring (20) is connected with the upper part of the shell (40), the upper part of the sealing ring (20) is connected with an upper cover (10), and the structure is characterized in that: step grooves (51) with upward notches are formed along the edge of the lower cover (50), and four step grooves (51) are arranged and are symmetrical up and down and left and right; the edge of the outer side of the bottom of the shell (40) is provided with a step clamping groove (41) matched with the step groove (51), and the step groove (51) is connected with the step clamping groove (41) in a buckling mode; the edge of the upper part of the shell (40) is provided with a C-shaped groove (42) with an upward notch, the notch of the C-shaped groove (42) is provided with a fixing strip, a plurality of bayonets (411) are arranged along the outer side of the edge of the fixing strip, and the bayonets (411) are symmetrical left and right; the C-shaped groove (42) is filled with the sealing ring (20), a plurality of suckers (23) which are arranged at equal intervals are arranged along the outer wall of the sealing ring (20), and the suckers (23) are adsorbed on the inner wall of the C-shaped groove (42); a plurality of buckles (22) matched with the bayonets (411) are arranged along the edge of the sealing ring (20); a clamping groove (21) with an upward opening is formed along the edge of the sealing ring (20), and the clamping groove (21) is positioned between the two buckles (22); the edge of the bottom of the upper cover (10) is provided with an inserting strip (11) matched with the clamping groove (21), and the inserting strip (11) is inserted into the clamping groove (21); a first C-shaped groove (111), a second C-shaped groove (12) and a third C-shaped groove (13) with downward openings are sequentially formed in the bottom of the upper cover (10) from outside to inside; the top of the shell (40) is sequentially provided with a first C-shaped strip (43), a second C-shaped strip (44) and a third C-shaped strip (45) which are matched with the first C-shaped groove (111), the second C-shaped groove (12) and the third C-shaped groove (13) from outside to inside.

2. The structure of the DCDC converter according to claim 1, wherein: the shell (40) is characterized in that a first C-shaped strip (43), a second C-shaped strip (44) and a third C-shaped strip (45) are inserted into a first C-shaped groove (111), a second C-shaped groove (12) and a third C-shaped groove (13) of the upper cover (10).

3. The structure of the DCDC converter according to claim 1 or 2, wherein: an arc-shaped groove (121) with a downward notch is formed in the end part of the second C-shaped groove (12); and a protrusion (441) matched with the arc-shaped groove (121) is arranged at the end part of the second C-shaped strip (44), and the protrusion (441) is embedded into the arc-shaped groove (121).

4. The structure of the DCDC converter according to claim 1, wherein: the stepped groove (51) of the lower cover (50) and the stepped clamping groove (41) of the shell (40) are three steps.

5. The structure of the DCDC converter according to claim 1, wherein: the step groove (51) of the lower cover (50) and each step surface of the step clamping groove (41) of the shell (40) are provided with ribs (511, 411).

6. The structure of the DCDC converter according to claim 1, wherein: the sucker (23) is in a circular disc-shaped structure with a concave middle part.

7. The structure of the DCDC converter according to claim 1 or 6, wherein: the sucking disc (23) is made of nitrile rubber.

8. The structure of the DCDC converter according to claim 1, wherein: the number of the clamping grooves (21) is 8, two of the clamping grooves are vertically symmetrical, and the other six clamping grooves are horizontally symmetrical.

9. The structure of the DCDC converter according to claim 1, wherein: the edge of the lower cover (50) is fixed with the edge of the lower part of the shell (40) by screws.

10. The structure of the DCDC converter according to claim 1, wherein: the upper edge of the shell (40) is fixed with the edge of the upper cover (10) through screws.