CN214337777U - Frequency converter casing - Google Patents
Frequency converter casing Download PDFInfo
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- CN214337777U CN214337777U CN202120039664.4U CN202120039664U CN214337777U CN 214337777 U CN214337777 U CN 214337777U CN 202120039664 U CN202120039664 U CN 202120039664U CN 214337777 U CN214337777 U CN 214337777U
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- sealing rubber
- contact surface
- shell
- rubber strip
- edge
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Abstract
The utility model relates to a sealed field discloses a converter casing. The utility model discloses well frequency converter casing, include: the epitheca, with the drain pan that the epitheca was fixed mutually with the epitheca and press from both sides the joint strip who locates between epitheca and the drain pan, the epitheca includes: as the first lateral surface of partial surface of seal shell, with the first contact surface that joint strip laminated mutually, first lateral surface intersects with first contact surface and forms first edge, and the drain pan includes: the sealing shell comprises a first outer side face and a first contact face, wherein the first outer side face is used as part of the outer surface of the sealing shell, the first contact face is attached to the sealing rubber strip, the first outer side face and the second contact face are intersected to form a first edge, when the upper shell is fixed with the bottom shell, the first edge and the second edge are spaced from each other, gaps are formed between the first edge and the second edge and between the first contact face and the second contact face, and the sealing rubber strip is filled in the gaps. Therefore, the waterproof requirement of the frequency converter is met, and the design requirement of the frequency converter on the form can be met.
Description
Technical Field
The utility model relates to a sealed field, in particular to converter casing.
Background
The frequency converter is a power control device for controlling an alternating current motor by changing the working power supply frequency mode of the motor, and has higher waterproof requirements. When the frequency converter is designed to be waterproof, the following methods are generally adopted: one is to install the internal converter of cabinet, usually on the cabinet door foam, utilize the foaming to avoid water to get into the cabinet body to indirectly realize the waterproof requirement of converter. The other type is to improve the frequency converter, a groove is arranged in the frequency converter, a sealing strip is embedded into the groove or foaming is carried out on the groove, and the sealing strip in the groove or foaming is utilized to realize the waterproof requirement.
The inventors have found that at least the following problems exist in the above techniques: with the development of living standard, people pursue not only the performance of the product, but also certain requirements on the appearance of the product. The foaming or sealing strip in the current waterproof design only realizes sealing and does not have any effect on the form design of the frequency converter.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a converter casing, when satisfying the waterproof requirement of converter, can satisfy the design requirement of converter on the form again, provides more design elements for the appearance design of converter.
In order to solve the above technical problem, an embodiment of the utility model provides a converter casing, include: the epitheca, with the drain pan that the epitheca was fixed mutually with the epitheca and press from both sides the joint strip who locates between epitheca and the drain pan, the epitheca includes: as the first lateral surface of the partial surface of converter casing, with the first contact surface that joint strip laminated mutually, first lateral surface intersects with first contact surface and forms first edge, and the drain pan includes: the first outer side face serving as part of the outer surface of the frequency converter shell and the second contact surface attached to the sealing rubber strip are intersected to form a second edge, when the upper shell is fixed to the bottom shell, the first edge and the second edge are spaced from each other, gaps are formed between the first edge and the second edge and between the first contact surface and the second contact surface, and the sealing rubber strip is filled in the gaps.
The embodiment of the utility model provides a for correlation technique, the epitheca of converter casing includes the first lateral surface as the partial surface of converter casing, the first contact surface of laminating mutually with joint strip, first lateral surface intersects with first contact surface and forms first edge, same drain pan includes the second lateral surface as the partial surface of converter casing, the second contact surface of laminating mutually with joint strip, the second lateral surface intersects with the second contact surface and forms the second edge, when epitheca and drain pan are fixed mutually, first edge separates each other with the second edge, and between first edge and the second edge, form the clearance between first contact surface and the second contact surface, for joint strip fills. After the sealing rubber strip is filled in the gap, the first contact surface and the second contact surface extrude the sealing rubber strip, and dust or water is prevented from entering the shell. In addition, because upper shell and drain pan are when fixed, joint strip can demonstrate the lateral surface at the casing to utilize joint strip can decorate the appearance of casing, improved the pleasing to the eye degree of converter.
In addition, the bottom case further includes: the boss is arranged on the second contact surface, the sealing rubber strip is provided with a groove, the groove faces the second contact surface, and the boss is accommodated in the groove when the upper shell and the bottom shell are fixed mutually. This can fix the position of the joint strip to some extent.
In addition, the boss and the second edge are spaced and the boss encloses a closed structure along the second edge, the sealing rubber strip is of an annular structure, the groove is an annular groove, and when the upper shell is fixed with the bottom shell, the closed structure formed by the boss is contained in the groove.
In addition, the bottom case further includes: and the positioning column is arranged on the second contact surface, the sealing rubber strip is provided with a positioning hole, and the positioning column is in interference fit with the positioning hole and fixes the sealing rubber strip on the bottom shell. Thereby improving the fixing effect of the sealing rubber strip.
In addition, the quantity of reference column is a plurality of, and a plurality of reference columns interval sets up on the second contact surface.
In addition, the upper case further includes: the step arranged on the first contact surface is abutted against the sealing rubber strip when the upper shell is fixed with the bottom shell.
In addition, the sealing rubber strip is clamped between the boss and the step. The abutting force between the boss and the step is opposite to that between the sealing rubber strip, so that the sealing rubber strip is more stable.
In addition, the color of the sealing rubber strip is different from the color of the first outer side face and the color of the second outer side face. Thereby making the appearance of the frequency converter more distinctive.
In addition, when the upper shell is fixed with the bottom shell, the first contact surface and the second contact surface are attached to the sealing rubber strips from two sides, and the sealing rubber strips are flush with the first outer side surface and the second outer side surface. The part of the sealing rubber strip close to the outer side surface is not subjected to extrusion force, so that the appearance attractiveness is not affected by deformation.
In addition, the upper shell further comprises a first screw hole, the bottom shell further comprises a second screw hole, and the upper shell is fixed with the bottom shell through a screw screwed with the first screw hole and the second screw hole.
Drawings
Fig. 1 is an exploded schematic view of a converter case according to a first embodiment of the present invention;
fig. 2 is a sectional view of a case structure of a frequency converter in accordance with a first embodiment of the present invention;
fig. 3 is a schematic view of a case structure of a frequency converter according to a first embodiment of the present invention;
fig. 4 is a sectional view of a case structure of a frequency converter in accordance with a second embodiment of the present invention;
fig. 5 is a partial sectional view of a converter case structure according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
The first embodiment of the present invention relates to a frequency converter housing, as shown in fig. 1 to 3, including: upper shell 11, the drain pan 12 that is fixed mutually with upper shell 11 and press from both sides the joint strip 13 of locating between upper shell 11 and drain pan 12, upper shell 11 includes: as the first lateral surface of the partial surface of converter casing, with the first contact surface that joint strip 13 laminated mutually, first lateral surface intersects with first contact surface and forms first edge, and drain pan 12 includes: the second outside surface is used as part of the outer surface of the frequency converter shell, the second contact surface is attached to the sealing rubber strip 13, the second outside surface and the second contact surface are intersected to form a second edge, when the upper shell 11 and the bottom shell 12 are fixed, the first edge and the second edge are spaced from each other, gaps are formed between the first edge and the second edge and between the first contact surface and the second contact surface, and the sealing rubber strip 13 is filled in the gaps. Thereby realizing that the sealing rubber strip 13 is used as part of the outer surface of the shell of the frequency converter to decorate the frequency converter.
The structure of the frequency converter 1 is shown in fig. 1, and sequentially includes: the cover plate 10, the upper shell 11 and the bottom shell 12 comprise an inner cavity 121, an outer cavity 122 and a bottom wire inlet 123. The inner cavity 121 is used for mounting components, the outer cavity 122 is used for arranging a heat dissipation device such as a fan and the like to dissipate heat of the components in the inner cavity 121, and the bottom wire inlet 123 is used for connecting a power supply to provide current (voltage) for the components of the inner cavity 121.
In addition, as shown in fig. 2, the bottom case 12 further includes: the boss is arranged on the second contact surface, the sealing rubber strip 13 is provided with a groove, the groove faces the second contact surface, and the boss is accommodated in the groove when the upper shell and the bottom shell are fixed mutually.
In addition, the boss and the second edge are separated from each other, the boss encloses a closed structure along the second edge, the sealing rubber strip 13 is of an annular structure, the groove is an annular groove, and when the upper shell 11 and the bottom shell 12 are fixed, the closed structure formed by the boss is accommodated in the groove. When the groove of the sealing rubber strip 13 accommodates the boss therein, the sealing rubber strip 13 can be hung on the bottom case 12, and the position of the sealing rubber strip 13 relative to the bottom case 12 is fixed to a certain extent, so that the sealing rubber strip 13 is conveniently clamped between the upper case 11 and the bottom case 12 when the upper case is fixed to the bottom case 12.
In addition, the boss arranged on the second contact surface has a certain interval with the second edge and the inner side edge of the bottom shell. The upper surface of the boss is parallel to the second contact surface.
In addition, the color of the joint strip 13 shown in fig. 3 may be any color, for example, the color of the joint strip 13 may be designed to be different from the colors of the first outer side surface and the second outer side surface, so as to individually design the appearance of the frequency converter.
In addition, the color of the individualized sealing rubber strip can be customized and designed according to customers, so that the appearance of the frequency converter can be individualized. For example, the enterprise color matched with the enterprise culture can be designed according to the unique enterprise culture of the customer, and the sealing rubber strip of the frequency converter customized by the customer is set to be the enterprise color, so that the appearance of the frequency converter is matched with the enterprise culture of the customer, and the personalized customization of different customers is met.
In addition, the sealing rubber strip 13 is used as a part of the outer surface of the frequency converter, and the sealing rubber strip cuts the upper shell and the bottom shell of the frequency converter in a curve form when seen from the side face of a product, so that the appearance attractiveness of the product is improved, and the appearance of the product is decorated to a certain extent.
The embodiment of the utility model provides a for correlation technique, the epitheca of converter casing includes the first lateral surface as the partial surface of converter casing, the first contact surface of laminating mutually with joint strip, first lateral surface intersects with first contact surface and forms first edge, same drain pan includes the second lateral surface as the partial surface of converter casing, the second contact surface of laminating mutually with joint strip, the second lateral surface intersects with the second contact surface and forms the second edge, when epitheca and drain pan are fixed mutually, first edge separates each other with the second edge, and between first edge and the second edge, form the clearance between first contact surface and the second contact surface, for joint strip fills. After the sealing rubber strip is filled in the gap, the first contact surface and the second contact surface extrude the sealing rubber strip, and dust or water is prevented from entering the shell. In addition, because upper shell and drain pan are when fixed, joint strip can demonstrate the lateral surface at the casing to utilize joint strip can decorate the appearance of casing, improved the pleasing to the eye degree of converter.
A second embodiment of the present invention relates to a converter case. The second embodiment is substantially the same as the first embodiment except that in the second embodiment, the upper case further includes: a step disposed on the first contact surface.
As shown in fig. 4, the upper case 11 further includes: the step arranged on the first contact surface presses the sealing rubber strip 13 when the upper shell 11 is fixed with the bottom shell 12, so that the waterproof purpose is achieved.
In addition, the contact surface of step and joint strip 13 is the inclined plane, and this inclined plane and first contact surface nonparallel set up the structure of step and joint strip 13 into the inclined plane and be favorable to pressing joint strip 13 to hold more to can further obstruct water entering casing.
In addition, the step arranged on the first contact surface has a certain interval with the first edge, when the step extrudes the sealing rubber strip, the sealing rubber strip as the outer surface of the frequency converter part cannot be stressed to deform, and the sealing rubber strip cannot protrude out of the outer surface of the frequency converter to influence the appearance attractiveness.
In addition, when the upper shell is fixed with the bottom shell, the first contact surface and the second contact surface are attached to the sealing rubber strips from two sides, and the sealing rubber strips are flush with the first outer side surface and the second outer side surface. The part of the sealing rubber strip close to the outer side surface is not subjected to extrusion force, so that the appearance attractiveness is not affected by deformation.
In addition, joint strip centre gripping is between boss and step, and the position of the step that sets up on first contact surface promptly, corresponding with the position of the boss that sets up on the second contact surface, step and boss follow two sides and extrude joint strip's same position, improve the centre gripping effect to joint strip to the degree of difficulty that water got into the casing inside along first contact surface or second contact surface has been increased.
In addition, in order to improve the waterproof effect of the sealing bead to the greatest extent, a large pressing force needs to be provided for the sealing rubber strip, so that water is prevented from entering the shell through a gap between the shell and the sealing rubber strip. Because the deformation of the sealing rubber strip caused by stress has a certain upper limit, and the deformation amount of the upper limit has a direct proportional relation with the thickness of the sealing rubber strip, the sealing pressing strip needs to be kept in the state of the maximum deformation amount in order to ensure the waterproof effect of the sealing pressing strip. Namely, the steps and the bosses press and hold the sealing rubber strips to reach the upper limit of the deformation amount.
In addition, as shown in fig. 5, the bottom case 12 further includes: the positioning column 124 is arranged on the second contact surface, the sealing rubber strip 13 is provided with a positioning hole, and the positioning column 124 is in interference fit with the positioning hole and fixes the sealing rubber strip 13 on the bottom shell. Thereby improving the fixing effect of the sealing rubber strip.
In addition, the quantity of reference column is a plurality of, and a plurality of reference columns interval sets up on the second contact surface. For example, a plurality of positioning columns can be arranged on the second contact surfaces corresponding to the two opposite side wall positions of the bottom shell, or a plurality of positioning columns are arranged on the second contact surfaces corresponding to the four side wall positions of the bottom shell, so that the sealing rubber strips are more stably fixed.
In addition, the upper case 11 further includes a first screw hole, the bottom case 12 further includes a second screw hole, and the upper case 11 is fixed to the bottom case 12 via a screw screwed with the first screw hole and the second screw hole.
In this embodiment, be provided with the step at the epitheca, be provided with the boss at the epitheca, the step sets up and extrudees joint strip with the boss relatively to play better water-proof effects. In addition, still be provided with the reference column on the drain pan, make the drain pan more firm to joint strip's fixed effect.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and detail may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A frequency converter housing, comprising: an upper shell, a bottom shell fixed with the upper shell, and a sealing rubber strip clamped between the upper shell and the bottom shell,
the upper case includes: a first outer side surface serving as part of the outer surface of the frequency converter shell and a first contact surface attached to the sealing rubber strip, wherein the first outer side surface and the first contact surface are intersected to form a first edge,
the bottom case includes: a second outer side surface which is a part of the outer surface of the frequency converter shell and a second contact surface which is attached to the sealing rubber strip, wherein the second outer side surface and the second contact surface are intersected to form a second edge,
when the upper shell and the bottom shell are fixed, the first edge and the second edge are spaced from each other, gaps are formed between the first edge and the second edge and between the first contact surface and the second contact surface, and the sealing rubber strip is filled in the gaps.
2. The transducer housing of claim 1, wherein the bottom shell further comprises: the sealing rubber strip is provided with a groove, the groove faces the second contact surface, and when the upper shell is fixed with the bottom shell, the boss is accommodated in the groove.
3. The frequency converter housing of claim 2, wherein the boss is spaced from the second edge and encloses a closed configuration along the second edge, the strip of sealant is an annular configuration, and the groove is an annular groove, the closed configuration defined by the boss being received within the groove when the top shell is secured to the bottom shell.
4. The transducer housing of claim 1, wherein the bottom shell further comprises: and the positioning column is arranged on the second contact surface, a positioning hole is formed in the sealing rubber strip, and the positioning column is in interference fit with the positioning hole and fixes the sealing rubber strip on the bottom shell.
5. The frequency converter shell according to claim 4, wherein the number of the positioning posts is plural, and the positioning posts are arranged on the second contact surface at intervals.
6. The frequency converter housing of claim 2, wherein said upper shell further comprises: the step is arranged on the first contact surface, and when the upper shell is fixed with the bottom shell, the step is abutted against the sealing rubber strip.
7. The frequency converter housing according to claim 6, wherein the sealing rubber strip is clamped between the boss and the step.
8. The frequency converter housing according to claim 1, characterized in that the color of the sealing rubber strip is different from the color of the first outer side and the second outer side.
9. The frequency converter housing according to claim 1, wherein the first contact surface and the second contact surface abut the sealing rubber strip from both sides, and the sealing rubber strip is flush with the first outer side surface and the second outer side surface when the upper housing is fixed to the bottom housing.
10. The inverter casing of claim 1, wherein the top case further comprises a first screw hole, the bottom case further comprises a second screw hole, and the top case is fixed to the bottom case by screws screwed into the first screw hole and the second screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120039664.4U CN214337777U (en) | 2021-01-07 | 2021-01-07 | Frequency converter casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120039664.4U CN214337777U (en) | 2021-01-07 | 2021-01-07 | Frequency converter casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214337777U true CN214337777U (en) | 2021-10-01 |
Family
ID=77905688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120039664.4U Active CN214337777U (en) | 2021-01-07 | 2021-01-07 | Frequency converter casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214337777U (en) |
-
2021
- 2021-01-07 CN CN202120039664.4U patent/CN214337777U/en active Active
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| GR01 | Patent grant |