CN214788195U - Brushless condensation fan - Google Patents
Brushless condensation fan Download PDFInfo
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- CN214788195U CN214788195U CN202023320056.5U CN202023320056U CN214788195U CN 214788195 U CN214788195 U CN 214788195U CN 202023320056 U CN202023320056 U CN 202023320056U CN 214788195 U CN214788195 U CN 214788195U
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- rear end
- lug plate
- end cover
- casing
- groove
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Abstract
The utility model relates to the field of motors, and discloses a brushless condensing fan, which comprises a casing, a first lug plate, a second lug plate, a third lug plate, a fourth lug plate, a fifth lug plate, a sixth lug plate, a fifth lug plate and a sixth lug plate, wherein the first lug plate is arranged on the rear end surface of the casing; the shell also comprises a rear end cover, the rear end cover is fixed with the shell and comprises a connecting surface, reinforcing ribs are arranged on the outer side of the connecting surface, the connecting surface comprises a second lug plate and is arranged corresponding to the first lug plate, the second lug plate is circumferentially and uniformly distributed on the bottom surface of the rear end cover, second positioning holes are formed in the second lug plate, and the second positioning holes are arranged in one-to-one correspondence with the first positioning holes and used for axially positioning the shell and the rear end cover; the utility model discloses because the sealing washer block is in the draw-in groove, no matter whether be connected between first otic placode and the second otic placode not hard up, be connected for the interference all the time between sealing washer and the casing, have radial effort, still can guarantee the sealed effect between casing and the end cover.
Description
Technical Field
The utility model relates to a motor field especially relates to a brushless condensation fan.
Background
The casing and the rear end cover of the brushless condensing fan in the prior art are inserted into the casing through the rear end cover and are clamped and fixed, the sealing ring is placed on the top surface of the casing inserted into the rear end cover, a chamfer is also correspondingly arranged on the top of the inner surface of the casing, so that the end surface sealing is realized between the casing and the rear end cover, and in the long-term use process of the fan, bolts between the lug plates are loosened; in order to solve this problem, a brushless condensing fan with better sealing effect is needed.
Disclosure of Invention
The utility model discloses shortcoming to among the prior art provides a brushless condensation fan.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve:
a brushless condensing fan comprises
The shell comprises a first lug plate, the first lug plate is arranged on the rear end face of the shell, the plurality of first lug plates are uniformly distributed on the circumference where the shell is located, and a first positioning hole is formed in each first lug plate;
the shell also comprises a rear end cover, the rear end cover is fixed with the shell and comprises a connecting surface, reinforcing ribs are arranged on the outer side of the connecting surface, the connecting surface comprises a second lug plate and is arranged corresponding to the first lug plate, the second lug plate is circumferentially and uniformly distributed on the bottom surface of the rear end cover, second positioning holes are formed in the second lug plate, and the second positioning holes are arranged in one-to-one correspondence with the first positioning holes and used for axially positioning the shell and the rear end cover;
the rear end cover further comprises a clamping portion arranged on the inner side of the connecting face and used for extending into the shell through the clamping portion fixed with the shell and being clamped with the inner wall of the shell, a clamping groove used for installing a sealing ring is formed in the side surface of the clamping portion, and a step is formed between the upper side groove wall of the clamping groove and the connecting face in an outward extending mode.
Preferably, the lower side groove wall of the clamping groove extends outwards, and a height difference is formed between the clamping groove and the bottom of the rear end cover.
Preferably, the clamping groove forms a closed ring shape around the periphery of the clamping part. Because the thickness of sealing washer itself exists, such design makes the sealing washer block in the draw-in groove, can not take place skew from top to bottom, has guaranteed the radial effort between rear end cover and the casing to radial, the sealed of axial two directions has been guaranteed.
Preferably, the sealing device further comprises a sealing ring, the sealing ring is clamped in the clamping groove, the upper surface and the lower surface of the sealing ring are respectively attached to the upper groove wall and the lower groove wall of the clamping groove, and the sealing ring is in interference connection with the inner side wall of the machine shell.
Preferably, the number of the second ear plate and the first ear plate is at least four.
The utility model discloses owing to adopted above technical scheme, have apparent technological effect: the motor is axially positioned through the connection between the first lug plate and the second lug plate, the radial positioning is completed through the contact between the sealing ring and the shell, the shell and the rear end cover are fully fixed through the staggered positioning in the double directions, and the looseness is avoided, so that the fixing strength of the rear end cover of the motor is enhanced;
because the sealing washer block is in the draw-in groove, no matter be connected between first otic placode and the second otic placode not hard up, be interference connection all the time between sealing washer and the casing, have radial effort, still can guarantee the sealed effect between casing and the end cover.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic structural view of the rear end cap.
The names of the parts indicated by the numerical references in the above figures are as follows: wherein, 1-casing, 11-first otic placode, 2-rear end cap, 21-connect face, 211-second otic placode, 22-joint portion, 221-draw-in groove, 3-sealing washer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
A brushless condensing fan, as shown in FIGS. 1-3, comprises
The casing 1 comprises a first lug plate 11, the first lug plate is arranged on the rear end face of the casing 1, a plurality of first lug plates 11 are uniformly distributed on the circumference of the casing 1, and a first positioning hole is formed in each first lug plate 11;
the casing 1 further comprises a rear end cover 2, the rear end cover 2 is fixed with the casing 1 and comprises a connecting surface 21, reinforcing ribs are arranged on the outer side of the connecting surface 21, the rear end cover 2 comprises a second lug plate 211 which is arranged corresponding to the first lug plate 11 and circumferentially and uniformly distributed on the bottom surface of the rear end cover, a second positioning hole is formed in the second lug plate 211, and the second positioning holes and the first positioning holes are arranged in a one-to-one correspondence mode and used for axially positioning the casing 1 and the rear end cover 2;
the rear end cover 2 further comprises a clamping portion 22 arranged on the inner side of the connecting surface 21 and used for extending the clamping portion 22 fixed with the casing 1 into the casing 1 and clamping the inner wall of the casing 1 with each other, a clamping groove 221 used for installing the sealing ring 3 is arranged on the side surface of the clamping portion 22, and the upper side groove wall of the clamping groove 221 extends outwards and forms a step with the connecting surface 21.
The lower side groove wall of the clamping groove 221 extends outwards, and a height difference is formed between the clamping groove 221 and the bottom of the rear end cover 2.
The engaging groove 221 forms a closed loop around the circumference of the engaging portion 22.
The sealing ring 3 is clamped in the clamping groove 221, the upper surface and the lower surface of the sealing ring 3 are respectively attached to the upper groove wall and the lower groove wall of the clamping groove 221, and the sealing ring 3 is in interference connection with the inner side wall of the machine shell 1.
The number of the second ear plates 211 and the first ear plates 11 is at least four.
In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.
Claims (5)
1. A brushless condensing fan is characterized by comprising
A housing (1) comprising
The first ear plate (11) is arranged on the rear end face of the shell (1), the first ear plates (11) are uniformly distributed on the circumference where the shell (1) is located, and a first positioning hole is formed in each first ear plate (11);
a rear end cover (2), the rear end cover (2) is fixed with the casing (1), comprising
A connecting surface (21), the outer side of the connecting surface (21) is provided with a reinforcing rib, which comprises
The second lug plate (211) is arranged corresponding to the first lug plate (11), is circumferentially and uniformly distributed on the bottom surface of the rear end cover, and is provided with second positioning holes which are arranged in a one-to-one correspondence with the first positioning holes and used for axially positioning the shell (1) and the rear end cover (2);
joint portion (22), set up in connecting face (21) inboard for joint portion (22) fixed with casing (1) stretch into casing (1) and with the mutual joint of the inner wall of casing (1), the side surface of joint portion (22) is provided with draw-in groove (221) that are used for installing sealing washer (3), the upside cell wall of draw-in groove (221) outwards extend and with connect and form the step between face (21).
2. A brushless condensing fan according to claim 1, characterized in that: the lower side groove wall of the clamping groove (221) extends outwards, and a height difference is formed between the clamping groove (221) and the bottom of the rear end cover (2).
3. A brushless condensing fan according to claim 1, characterized in that: the clamping groove (221) surrounds the periphery of the clamping part (22) to form a closed ring shape.
4. A brushless condensing fan according to claim 1, characterized in that: still include sealing washer (3), sealing washer (3) block is in draw-in groove (221), and its upper and lower surface laminates with the upper and lower cell wall of draw-in groove (221) respectively, and sealing washer (3) are connected with casing (1) inside wall interference.
5. A brushless condensing fan according to claim 1, characterized in that: the number of the second ear plates (211) and the number of the first ear plates (11) are at least four respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023320056.5U CN214788195U (en) | 2020-12-31 | 2020-12-31 | Brushless condensation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023320056.5U CN214788195U (en) | 2020-12-31 | 2020-12-31 | Brushless condensation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214788195U true CN214788195U (en) | 2021-11-19 |
Family
ID=78743248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023320056.5U Active CN214788195U (en) | 2020-12-31 | 2020-12-31 | Brushless condensation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214788195U (en) |
-
2020
- 2020-12-31 CN CN202023320056.5U patent/CN214788195U/en active Active
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