CN203251559U - An insulation support for a low-voltage electric appliance, and the low-voltage electric appliance - Google Patents
An insulation support for a low-voltage electric appliance, and the low-voltage electric appliance Download PDFInfo
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- CN203251559U CN203251559U CN 201320160837 CN201320160837U CN203251559U CN 203251559 U CN203251559 U CN 203251559U CN 201320160837 CN201320160837 CN 201320160837 CN 201320160837 U CN201320160837 U CN 201320160837U CN 203251559 U CN203251559 U CN 203251559U
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- low
- contact site
- insulation part
- insulating support
- voltage electrical
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Abstract
The utility model relates to an insulation support for a low-voltage electric appliance; the support comprises a contact portion (10) and a heat isolation portion; the contact portion (10) is provided with a through hole (19) for containing a heating current carrying conductor; the heat isolation portion is isolated from an outer surface of the contact portion (10) through at least one gap; and in an extension direction of the through hole (19), a distance (L) is formed between an end portion of the gap and an opening portion of the through hole (19). The utility model also provides the low-voltage electric appliance using the support. The gap with certain distance is formed between the heat isolation portion and the contact portion, so an air layer is formed; and air fluidity can slowly transmit the heat generated by the current carrying conductor to other elements, thereby reducing thermal conduction.
Description
Technical field
The utility model relates to the low-voltage electrical field, relates in particular to a kind of insulating support for low-voltage electrical apparatus, and the low-voltage electrical apparatus of using this support.
Background technology
In the low-voltage electrical apparatus such such as the earth leakage protective product; enclosure interior has current－carrying conductor usually; current－carrying conductor electric current by the time can generate heat; and enclosure interior also exists PCBA wiring board or other circuit boards or electronic devices and components; with regard to existing between circuit board and the current－carrying conductor owing to problems such as the distance about insulation, electric clearance that relative position causes, heat radiations, need to when guaranteeing low-pressure electronic equipment product usefulness, avoid the problems referred to above like this.
Use insulating tape or use plastic part at current－carrying conductor, thereby come interval current－carrying conductor and circuit board, although solved the Insulation Problems with circuit board, still can not well solve circuit board and current－carrying conductor hypotelorism and cause the too high problem of circuit board position local temperature.
The utility model content
The purpose of this utility model provides and a kind ofly can effectively reduce heat conducting insulating support.Another one purpose of the present utility model provides a kind of low-voltage electrical apparatus that uses such insulating support.
The utility model provides a kind of insulating support for low-voltage electrical apparatus, and described support has a contact site and an insulation part, and described contact site has a through hole, is used for holding a heatable current－carrying conductor; Described insulation part separates by the outer surface of at least one space and described contact site; On the bearing of trend of described through hole, there are a distance in the end in described space and the opening part of described through hole.
Between insulation part and the contact site because have the space of certain distance, thereby formation air layer, air flow property can be so that the heat that current－carrying conductor produces be transmitted on other elements such as circuit board more slowly, make it can not form obvious temperature gradient, thereby reduced local overheating and make the electronic component failure problem.
In one embodiment, described insulation part is set on the described contact site, and all has the space with described contact site all around.All have the space all around, meeting so that radiating effect greatly improve.
Certainly, if owing to reasons such as spaces, in the time of need to doing certain limitation to the size of insulating support, in another embodiment, described insulation part can arrange by relatively described contact site symmetrically, and all has the space in the both sides of symmetry.
In one embodiment, described insulation part separates 2 millimeters to 4 millimeters by the outer surface of at least one space and described contact site.Both satisfied and reduced heat conducting purpose, also can satisfy as much as possible the space requirement such as low-voltage electrical apparatuses such as earth leakage protective products.
In one embodiment, exist one to cut off between described insulation part and described contact site outer surface.The existence that cuts off when especially using insulation part to support other elements, can improve the intensity of insulation part.
In one embodiment, described through hole inside convexes with muscle.Current－carrying conductor contacts with muscle, and the air gap that forms in the middle of the two helps heat balance.
In order to reduce number of spare parts and die sinking expense, in one embodiment, described contact site and described insulation part can be structure as a whole.
Such insulating support can use such as the earth leakage protective product in interior low-voltage electrical apparatus, thereby reduce because of the current－carrying conductor heating cause the circuit board local overheating may.
The utility model also provides a kind of low-voltage electrical apparatus, includes a heatable current－carrying conductor, also comprises above-mentioned any one insulating support, and described current－carrying conductor passes the through hole setting of described contact site.Especially, low-voltage electrical apparatus also comprises a circuit board, and described circuit board is supported on the described insulation part.Such low-voltage electrical apparatus can be the products such as earth leakage protective product.Between insulation part and the contact site because have the space of certain distance, thereby formation air layer, air flow property can be so that the heat that current－carrying conductor produces be transmitted on the circuit board more slowly, make on the circuit board and can not form obvious temperature gradient, thereby reduce local overheating on the circuit board and make the electronic component failure problem.
Description of drawings
Hereinafter will also come by reference to the accompanying drawings the above-mentioned characteristic of the utility model, technical characterictic, advantage and implementation thereof are further described by description of a preferred embodiment in clear and definite understandable mode, wherein:
Fig. 1 is the embodiment of a kind of insulating support of providing of the utility model;
Fig. 2 is the front view of insulating support shown in Figure 1;
Fig. 3 is a kind of embodiment that uses the low-voltage electrical apparatus of insulating support shown in Figure 1 that the utility model provides;
Fig. 4 is the embodiment of another insulating support of providing of the utility model;
Fig. 5 is the front view of insulating support shown in Figure 4;
Fig. 6 be the utility model provide another use the embodiment of the low-voltage electrical apparatus of insulating support shown in Figure 4.
Label declaration:
10 contact sites
11 contact site outer surfaces
12,12a contact site outer surface
18 muscle
19 through holes
20 insulation part
21 cut off
22,23 spaces
80 current－carrying conductors
90 circuit boards
100 insulating supports
200 low-voltage electrical apparatuses
Embodiment
Understand for technical characterictic, purpose and effect to utility model have more clearly, now contrast description of drawings embodiment of the present utility model, identical label represents identical part in each figure.
For the narrow and small low-voltage electrical apparatus of shell space; if the distance between circuit board and the current－carrying conductor is excessively near; can cause that circuit board is too high near the position local temperature of conductor; some electronic devices and components on the circuit board are overheated can to lose efficacy; thereby cause inefficacy; and this is for for the product the earth leakage protective product, can be abnormally dangerous.
As shown in Figure 1, the utility model provides a kind of insulating support 100 for low-voltage electrical apparatus (such as the earth leakage protective product), and insulating support 100 can adopt the non electrically conductive materials such as plastics to make.Support 100 has a contact site 10 and an insulation part 20, contact site 10 has a through hole 19, current－carrying conductor can be placed in the through hole 19, and current－carrying conductor can generate heat when having electric current to pass through, just need in time heat radiation this moment, the probability of aforementioned risk occurs with reduction.
Wherein, above-mentioned requirements has just been satisfied in the setting of insulation part 20, there is space 22 between the outer surface 11 of insulation part 20 and contact site 10, and there is space 23 between the outer surface 12, the existence in these spaces so that hot-air can flow, thereby the heat that produces on the minimizing current－carrying conductor is transmitted to the risk on other elements fast, make it can not form obvious temperature gradient, has also reduced the risk that local overheating causes component failure.
And on the bearing of trend of through hole 19, there are a distance L in space 22,23 end and the opening part of through hole 19, and the existence of this distance avoids hot-air to concentrate in the space so that heat radiation is faster, can't in time shed.
Through hole 19 inside also convex with muscle 18, and current－carrying conductor contacts with muscle 18, and the air gap that forms in the middle of the two helps heat balance.
As shown in Figure 2, also exist to cut off 21 between the outer surface of insulation part 20 and contact site 10, cut off 21 existence so that the intensity of insulation part 20 is improved, especially, when also being supported with other elements on the insulation part, can also avoid the insulation part equivalent risk that subsides.
In practice, insulation part separates certain distance h 1 and h2 by the outer surface of at least one space and contact site, and h1 and h2 can be the distances between 2 millimeters to 4 millimeters, the existence of this distance, both satisfy the purpose of heat radiation, also looked after the requirement of overall dimensions and processing.
Although among the embodiment of the insulating support that Fig. 1 and Fig. 2 provide, insulation part 20 integral body are set on the contact site 10, and around all have the space with contact site 10.But, be understandable that, also can as shown in Figure 4, insulation part 20 relative contact sites 10 be arranged symmetrically, and all have the space in the both sides of symmetry.
In insulating support shown in Figure 4 100, insulation part 20 flushes at face 12a with contact site 10, and still, as shown in Figure 5, insulation part 20 then has space 22 with outer surface 10 1 sides of contact site 10.
Insulation part and contact site a part be can be made, number of spare parts and die sinking expense etc. helped like this to reduce.
The utility model also provides a kind of low-voltage electrical apparatus of this insulating support of application, such as the earth leakage protective product.Fig. 3 and Fig. 6 have located a kind of low-voltage electrical apparatus 200 with regard to showing respectively.
In Fig. 3, the current－carrying conductor 80 that can generate heat during by electric current passes contact site 10, and insulation part 20 has then supported circuit board 90, and like this, contact site 10 is wrapped in outside the current－carrying conductor 80, has played the insulating effect with circuit board 90.
As previously mentioned, muscle 18 is arranged in contact site 10, current－carrying conductor 80 contacts with muscle 18, and the air gap of the two formation helps heat balance.
And insulation part 20 can also be used to support or fixing circuit board 90, thereby has reduced other strutting pieces of circuit board 90, has saved the space.
Between insulation part and the contact site because have the space of certain distance, thereby formation air layer, air flow property can be so that the heat that current－carrying conductor produces be transmitted on the circuit board more slowly, make on the circuit board and can not form obvious temperature gradient, thereby reduce local overheating on the circuit board and make the electronic component failure problem.
Certainly, can also be as shown in Figure 6, another the insulating support embodiment with insulation part 20 that before low-voltage electrical apparatus 200 uses, introduces.
In this article, " schematically " expression " is served as example, example or explanation ", any diagram, the execution mode that is described in this article " schematically " should be interpreted as a kind of preferred or have more the technical scheme of advantage.
Above listed a series of detailed description only is specifying for feasibility embodiment of the present utility model; they are not to limit protection range of the present utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit does and all should be included within the protection range of the present utility model.
Claims (11)
1. an insulating support that is used for low-voltage electrical apparatus is characterized in that described support has a contact site (10) and an insulation part,
Described contact site (10) has a through hole (19), is used for holding a heatable current－carrying conductor;
Described insulation part separates by the outer surface of at least one space and described contact site (10);
On the bearing of trend of described through hole (19), there is a distance (L) in the opening part of the end in described space and described through hole (19).
2. insulating support as claimed in claim 1 is characterized in that, described insulation part (20) is set on the described contact site (10), and all has the space with described contact site (10) all around.
3. insulating support as claimed in claim 1 is characterized in that, the relatively described contact site of described insulation part (20) (10) arranges symmetrically, and all has space (22) in the both sides of symmetry.
4. insulating support as claimed in claim 1 is characterized in that, described insulation part separates 2 millimeters to 4 millimeters by the outer surface (11) of at least one space and described contact site (10).
5. such as claim 1 or 2 described insulating supports, it is characterized in that, exist one to cut off (21) between described insulation part and described contact site (10) outer surface.
6. insulating support as claimed in claim 1 is characterized in that, described through hole (19) inside convexes with muscle (18).
7. insulating support as claimed in claim 1 is characterized in that, described contact site (10) is structure as a whole with described insulation part.
8. insulating support as claimed in claim 1 is characterized in that, described low-voltage electrical apparatus is the earth leakage protective product.
9. a low-voltage electrical apparatus includes a heatable current－carrying conductor (80), it is characterized in that, also comprises the described insulating support of above-mentioned any one claim, and the through hole (19) that described current－carrying conductor (80) passes described contact site (10) arranges.
10. low-voltage electrical apparatus as claimed in claim 9 is characterized in that, also comprises a circuit board (90), and described circuit board (90) is supported on the described insulation part.
11. low-voltage electrical apparatus as claimed in claim 9 is characterized in that, described low-voltage electrical apparatus is the earth leakage protective product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160837 CN203251559U (en) | 2013-04-02 | 2013-04-02 | An insulation support for a low-voltage electric appliance, and the low-voltage electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160837 CN203251559U (en) | 2013-04-02 | 2013-04-02 | An insulation support for a low-voltage electric appliance, and the low-voltage electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203251559U true CN203251559U (en) | 2013-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320160837 Expired - Fee Related CN203251559U (en) | 2013-04-02 | 2013-04-02 | An insulation support for a low-voltage electric appliance, and the low-voltage electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203251559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350079A (en) * | 2017-08-10 | 2017-11-17 | 佛山市碧达环保科技有限公司 | A kind of casing of electrostatic purifier |
-
2013
- 2013-04-02 CN CN 201320160837 patent/CN203251559U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350079A (en) * | 2017-08-10 | 2017-11-17 | 佛山市碧达环保科技有限公司 | A kind of casing of electrostatic purifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20200402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |