CN204926936U - Resistance box - Google Patents
Resistance box Download PDFInfo
- Publication number
- CN204926936U CN204926936U CN201520710476.4U CN201520710476U CN204926936U CN 204926936 U CN204926936 U CN 204926936U CN 201520710476 U CN201520710476 U CN 201520710476U CN 204926936 U CN204926936 U CN 204926936U
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- CN
- China
- Prior art keywords
- resistance
- box body
- radiator fan
- link
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a resistance box, comprises a box bod, the inside resistance pole that is the U -shaped structure that is equipped with of box body, resistance pole no. 1 is served and is equipped with first link, is equipped with the second link on the other end, resistance pole interlude contacts with slide bar one end, the slide bar sandwich digit is in the spout of leading truck, be equipped with radiator fan on the inside one side of box body, be equipped with the air inlet net on the box body and on being located radiator fan one side, be equipped with wind network on the opposite side. The utility model discloses a setting up resistance pole, slide bar, like this when using, can moving the slide bar along the resistance pole according to experiment needs, realize the regulation of resistance, satisfy the demand of experiment, radiator fan starts simultaneously, with external cold air from the air inlet net discharge box body inside, then discharge the hot -air from wind network, effectually reduce the resistance yin wendu of resistance pole and change, improve the precision of testing.
Description
Technical field
The utility model relates to electronic technology field, particularly relates to a kind of resistance box.
Background technology
Resistor is generally directly called resistance in daily life.Be a current limiting element, connect by resistance in circuit, the resistance of resistor is fixing is generally two pins, and it can the size of current on its institute's chord road of restricted passage.Resistance is unalterable is called fixed resistor.What resistance was variable is called potentiometer or variable resistance.Desirable resistor is linear, is namely directly proportional to additional instantaneous voltage by the transient current of resistor.For the variable resistance of dividing potential drop.On exposed resistive element, pressed against one or two and can move hard contact.Resistance between contact position determination resistive element either end and contact.
Terminal voltage and electric current have determines functional relation, and embody the two-terminal device that electric energy conversion is other form abilities, represent with letter r, unit is ohm Ω.Practical devices is as bulb, and heating wire, resistor etc. all can be expressed as resistor element.
General and the temperature of the resistance value size of resistive element, material, length, also have cross-sectional area relevant, the physical quantity of gauge resistor temperature influence size is temperature coefficient, and it is defined as the percentage that when temperature often raises 1 DEG C, resistance value changes.The main physical characteristics of resistance is power transformation can be heat energy, and also can say that it is a dissipative cell, electric current is energy in it just produces.Resistance plays dividing potential drop, shunting in circuit usually.Concerning signal, exchange and can pass through resistance with direct current signal.
Current resistance box resistance is generally fixing, and can not meet the requirement of experiment to different resistance, resistance easily generates heat after a period of operation simultaneously, and metapyretic resistance can change, the precision of impact experiment.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of resistance box.
The utility model is achieved through the following technical solutions:
A kind of resistance box, comprise box body, described tray interior is provided with the resistance bar of the structure that takes the shape of the letter U, described resistance bar one end is provided with the first link, and the other end is provided with the second link, and described resistance bar interlude contacts with sliding bar one end, the chute of leading truck is positioned in the middle of described sliding bar, described tray interior side is provided with radiator fan, and described box body is positioned at radiator fan side and is provided with Inlet Network, and opposite side is provided with Air outlet net.
As optimal technical scheme of the present utility model, described resistance bar two ends are fixedly connected with between the first link, the second link.
As optimal technical scheme of the present utility model, for removably connecting between described radiator fan and box body.
As optimal technical scheme of the present utility model, described Inlet Network, Air outlet net are embedded on box body.
Compared with prior art, the beneficial effects of the utility model are: the utility model structure is simple, reasonable in design, the utility model is by arranging resistance bar, sliding bar, so in use, sliding bar can be experimentally needed to move along resistance bar, realize the adjustment of resistance, meet the demand of experiment, radiator fan starts simultaneously, external cold air is discharged tray interior from Inlet Network, is then discharged from Air outlet net by hot-air, the resistance Yin Wendu of effective reduction resistance bar and changing, improves the precision of experiment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1. box body; 2. resistance bar; 3. the first link; 4. the second link; 5. sliding bar; 6. leading truck; 601. chute; 7. radiator fan; 8. Inlet Network; 9. Air outlet net.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is structural representation of the present utility model.
A kind of resistance box, comprise box body 1, described box body 1 inside is provided with the resistance bar 2 of the structure that takes the shape of the letter U, and described resistance bar 2 one end is provided with the first link 3, the other end is provided with the second link 4, is fixedly connected with between wherein said resistance bar 2 two ends with the first link 3, second link 4.Described resistance bar 2 interlude contacts with sliding bar 5 one end, the chute 601 of leading truck 6 is positioned in the middle of described sliding bar 5, the described inner side of box body 1 is provided with radiator fan 7, for removably connecting between wherein said radiator fan 7 and box body 1, is convenient to the installation of radiator fan 7 like this.
Described box body 1 is positioned at radiator fan 7 side and is provided with Inlet Network 8, and opposite side is provided with Air outlet net 9, and wherein said Inlet Network 8, Air outlet net 9 are embedded on box body 1.So in use, sliding bar 5 can be experimentally needed to move along resistance bar 2, realize the adjustment of resistance, meet the demand of experiment, radiator fan 7 starts simultaneously, external cold air is discharged box body 1 inside from Inlet Network 8, is then discharged from Air outlet net 9 by hot-air, the resistance Yin Wendu of effective reduction resistance bar 2 and changing, improves the precision of experiment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a resistance box, comprise box body (1), it is characterized in that: described box body (1) inside is provided with the resistance bar (2) of the structure that takes the shape of the letter U, described resistance bar (2) one end is provided with the first link (3), the other end is provided with the second link (4), described resistance bar (2) interlude contacts with sliding bar (5) one end, the chute (601) of leading truck (6) is positioned in the middle of described sliding bar (5), described box body (1) inner side is provided with radiator fan (7), described box body (1) is gone up and is positioned at radiator fan (7) side and is provided with Inlet Network (8), opposite side is provided with Air outlet net (9).
2. a kind of resistance box according to claim 1, is characterized in that: described resistance bar (2) two ends are fixedly connected with between (4) with the first link (3), the second link.
3. a kind of resistance box according to claim 1, is characterized in that: for removably connecting between described radiator fan (7) and box body (1).
4. a kind of resistance box according to claim 1, is characterized in that: described Inlet Network (8), Air outlet net (9) are embedded on box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520710476.4U CN204926936U (en) | 2015-09-14 | 2015-09-14 | Resistance box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520710476.4U CN204926936U (en) | 2015-09-14 | 2015-09-14 | Resistance box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204926936U true CN204926936U (en) | 2015-12-30 |
Family
ID=54976045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520710476.4U Expired - Fee Related CN204926936U (en) | 2015-09-14 | 2015-09-14 | Resistance box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204926936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118590A (en) * | 2015-09-14 | 2015-12-02 | 陈海花 | Resistance box |
-
2015
- 2015-09-14 CN CN201520710476.4U patent/CN204926936U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118590A (en) * | 2015-09-14 | 2015-12-02 | 陈海花 | Resistance box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Jinquan Inventor after: Chen Quanming Inventor after: Chen Li Inventor after: Li Qingbin Inventor before: Chen Haihua |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170622 Address after: Pingtung 519060 Guangdong province Zhuhai Nanping Science and Technology Industrial Park Road five No. 6 repair assembly workshop first floor B District Patentee after: Zhuhai Tenwon Automation Equipment Co.,Ltd. Address before: 518000 Guangdong Province, Shenzhen City Comprehensive Building CaiTian South Road Futian District Haitian room 515 Patentee before: Chen Haihua |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170914 |