CN209896654U - Overvoltage protection device for direct current bus - Google Patents
Overvoltage protection device for direct current bus Download PDFInfo
- Publication number
- CN209896654U CN209896654U CN201921165465.7U CN201921165465U CN209896654U CN 209896654 U CN209896654 U CN 209896654U CN 201921165465 U CN201921165465 U CN 201921165465U CN 209896654 U CN209896654 U CN 209896654U
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- heat dissipation
- bus
- sleeve
- protection device
- rotating sleeve
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Abstract
The utility model relates to a bus protection technical field discloses a direct current generating line overvoltage protection device. The bus bar comprises two parallel supporting plates, through holes are formed in the middle of the supporting plates, a bus bar body penetrating through the through holes is placed between the supporting plates, heat dissipation sleeves sleeved on the bus bar body are connected between the supporting plates, and heat dissipation grooves are uniformly distributed in the heat dissipation sleeves along the length direction; a rotatable rotating sleeve is arranged outside the heat dissipation sleeve and between the supporting plates, the side wall of the rotating sleeve is in airtight fit with the side wall of the heat dissipation sleeve, and ventilation grooves matched with the corresponding heat dissipation grooves are uniformly distributed on the rotating sleeve along the length direction; a temperature detector for detecting the temperature of the bus body is arranged in the heat dissipation sleeve, and the temperature detector is connected with a controller for controlling the rotation of the rotating sleeve. Through the structure, the protection device can perform heat dissipation protection on the direct current bus when the direct current bus is in overvoltage, and protect the direct current bus when the use environment temperature is too low.
Description
Technical Field
The utility model relates to a bus protection technical field, specifically speaking relates to a direct current generating line overvoltage protector.
Background
The bus is a main lead for transmitting power in a power station or a transformer substation, and the power output by the generator, the transformer or the rectifier is transmitted to each user or other substations through the bus.
In the using process of the bus, a certain temperature can be generated on the bus due to the continuous transmission of the power. When the bus fails, the temperature of the bus also changes, and when the voltage of the bus is too high, the current on the bus increases, so that the temperature of the bus rises, and the bus is prone to fail. At present can monitor the temperature on the generating line when the generating line uses, the situation of use of generating line is observed to the temperature through monitoring the generating line, but still there is the temperature that produces when lacking the generating line excessive pressure and cools down to and carry out the defect of effectual protection to the generating line.
SUMMERY OF THE UTILITY MODEL
The temperature that produces when being excessive pressure to the generating line that lacks to exist among the prior art cools down to and carry out the defect of effectual protection to the generating line, the utility model provides a direct current generating line overvoltage protector. The protection device can realize the functions of heat dissipation protection when the protection device is used for protecting the direct current bus in case of overvoltage and protection when the temperature of the use environment is too low.
In order to solve the above technical problem, the present invention solves the above technical problems.
The direct-current bus overvoltage protection device comprises two parallel supporting plates, through holes are formed in the middle of the supporting plates, a bus body penetrating through the through holes is placed between the supporting plates, a heat dissipation sleeve sleeved on the bus body is connected between the supporting plates, and heat dissipation grooves are uniformly distributed in the heat dissipation sleeve along the left-right direction; a rotatable rotating sleeve is arranged outside the heat dissipation sleeve and between the supporting plates, the side wall of the rotating sleeve is in airtight fit with the side wall of the heat dissipation sleeve, and ventilation grooves matched with the corresponding heat dissipation grooves are uniformly distributed on the rotating sleeve along the left and right directions; a temperature detector for detecting the temperature of the bus body is arranged in the heat dissipation sleeve, and the temperature detector is connected with a controller for controlling the rotation of the rotating sleeve.
Through the structure in the utility model, the temperature detector can detect the real-time temperature of the bus body, the temperature detector sends a detection signal to the controller, the controller judges the received temperature signal, when the temperature is higher than the set temperature, at the moment, the direct current bus is in an overpressure state, the controller controls the rotating sleeve to rotate, the ventilating groove and the radiating groove are corresponding, and further the circulation of air in the radiating sleeve is accelerated, so that the temperature of the bus body is reduced, and the bus body is protected by cooling; when the temperature is lower than the temperature of settlement, at this moment, ambient temperature is less than the temperature that the generating line body used, and controller control rotates the sleeve and rotates, makes ventilative groove and radiating groove stagger each other, rotates the sleeve and can seal the radiating sleeve, and then makes the generating line body obtain sealed heat preservation to protect the generating line body. The utility model discloses an foretell technical scheme makes protection device can dispel the heat when overvoltage to direct current bus to and the service environment temperature is crossed when low and is protected direct current bus.
Preferably, the opposite side surfaces of the supporting plate are provided with rotating grooves with circular ring-shaped sections, and the side surfaces of the rotating grooves are provided with connecting grooves communicated with the upper side surfaces of the supporting plate; a worm wheel positioned in the rotating groove is arranged on one end face of the rotating sleeve, and a worm matched with the worm wheel is rotatably arranged in the connecting groove; the upper side face of the supporting plate is provided with a motor, the output end of the motor is connected with the worm, and the motor is connected with the controller.
In the utility model, the worm can rotate to drive the worm wheel to rotate through the arrangement of the rotating groove, the connecting groove, the worm wheel and the worm, so as to drive the rotating sleeve to rotate, wherein the arrangement of the rotating groove and the connecting groove ensures that the worm wheel and the worm are better matched while the worm is installed; through the setting of motor for the motor can drive the worm and rotate, and then realizes that the rotation of controller control motor drives the rotation of rotating sleeve.
Preferably, the side wall of the through hole is provided with a sliding groove with a square cross section and an area larger than the cross section area of the through hole, the through hole is provided with a clamping mechanism used for fixing the bus body, the clamping mechanism comprises two sliding plates located in the sliding groove, the upper side wall and the lower side wall of the sliding groove are provided with springs, the springs are used for pushing the sliding plates to seal the through hole, and the opposite side surfaces of the two sliding plates are provided with clamping grooves used for clamping the bus body.
In the utility model, the clamping mechanism can be clamped on the bus body through the arrangement of the clamping mechanism, so that the protection device can be prevented from moving on the bus body; the spring can push the sliding plate to slide in the sliding groove through the arrangement of the sliding groove, the spring and the sliding plate, so that the through hole is effectively sealed, and the heat preservation effect of the protection device is better; wherein, the setting in joint groove for the sliding plate passes through joint groove joint on the generating line body, makes the generating line body can pass protection device better.
Preferably, the sliding plate is provided with clamping portions which are arranged on the clamping grooves and are outwards extended to be attached to the bus body, the two sides of each clamping portion extend to the two sides to form mounting portions, and the corresponding mounting portions are connected through bolts.
The utility model discloses in, through the setting of joint portion, installation department and bolt for the area of contact of joint portion increase and generating line body, through the bolted connection installation department, and then make joint portion fix on the generating line body, thereby make fixture fix on the generating line body better, better prevent that protection device from rocking on the generating line body.
Preferably, the opposite side surfaces of the supporting plate are provided with circular chutes with T-shaped sections, and the other end surface of the rotating sleeve is provided with a slide rail which is positioned in the chute and slides.
The utility model discloses in, through the setting of slide rail and spout for the slide rail slides in the spout and restricts the rotating sleeve, and then prevents to rotate the rocking of sleeve on heat dissipation sleeve, thereby makes worm wheel and worm cooperate better.
Drawings
Fig. 1 is a schematic view of a dc bus overvoltage protection device in embodiment 1;
fig. 2 is a schematic view of a heat-dissipating sleeve in embodiment 1;
FIG. 3 is a schematic view of a rotating sleeve in embodiment 1;
FIG. 4 is a schematic view of a fixing mechanism in embodiment 1;
fig. 5 is a schematic vertical sectional view of a support plate in example 1.
The names of the parts indicated by the numerical references in the drawings are as follows: 100. a bus body; 110. a support plate; 111. a through hole; 112. a motor; 120. rotating the sleeve; 130. a clamping mechanism; 211. a sliding groove; 221. a heat dissipating sleeve; 222. a heat sink; 231. a rotating groove; 232. connecting grooves; 311. a ventilation groove; 312. a worm gear; 313. a slide rail; 411. a sliding plate; 421. a clamping part; 422. an installation part; 423. a bolt; 511. a clamping groove; 521. a spring.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.
It should be noted that the terms "middle part", "left and right", "up and down" and the like in the present invention are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1-5, the embodiment provides a dc bus overvoltage protection device, which includes two parallel supporting plates 110, a through hole 111 is disposed at the middle of each supporting plate 110, a bus body 100 disposed through the through hole 111 is disposed between the supporting plates 110, a heat dissipation sleeve 221 sleeved on the bus body 100 is connected between the supporting plates 110, and heat dissipation grooves 222 are uniformly disposed on the heat dissipation sleeve 221 along the left-right direction; a rotatable rotating sleeve 120 is arranged outside the heat dissipation sleeve 221 and between the support plates 110, the side wall of the rotating sleeve 120 is hermetically matched with the side wall of the heat dissipation sleeve 221, and ventilation grooves 311 matched with the corresponding heat dissipation grooves 222 are uniformly distributed on the rotating sleeve 120 along the left-right direction; the heat dissipation sleeve 221 is provided therein with a temperature detector for detecting the temperature of the bus bar body 100, and the temperature detector is connected to a controller for controlling the rotation of the rotating sleeve 120.
Through the structure in the embodiment, the temperature detector can detect the real-time temperature of the bus body 100, the temperature detector sends a detection signal to the controller, the controller judges the received temperature signal, when the temperature is higher than the set temperature, at the moment, the direct current bus is in an overpressure state, the controller controls the rotating sleeve 120 to rotate, so that the ventilation groove 311 corresponds to the heat dissipation groove 222, the circulation of air in the heat dissipation sleeve 221 is accelerated, the temperature of the bus body 100 is reduced, and the bus body 100 is protected by cooling; when the temperature is lower than the set temperature, at the moment, the ambient temperature is lower than the temperature used by the bus body 100, the controller controls the rotating sleeve 120 to rotate, so that the ventilating slot 311 and the heat dissipation slot 222 are staggered, the rotating sleeve 120 can seal the heat dissipation sleeve 221, and the bus body 100 is sealed and insulated, so that the bus body 100 is protected. According to the technical scheme, the protection device can perform heat dissipation protection on the direct-current bus when the direct-current bus is in overvoltage, and protect the direct-current bus when the use environment temperature is too low.
In this embodiment, a rotating groove 231 having a circular ring-shaped cross section is disposed on the opposite side of the supporting plate 110, and a connecting groove 232 communicating with the upper side of the supporting plate is disposed on the side of the rotating groove 231; a worm wheel 312 positioned in the rotating groove 231 is arranged on one end surface of the rotating sleeve 120, and a worm matched with the worm wheel 312 is rotatably arranged in the connecting groove 232; the upper side surface of the support plate 110 is provided with a motor 112, the output end of the motor 112 is connected with the worm, and the motor 112 is connected with the controller.
Through the arrangement of the rotating groove 231, the connecting groove 232, the worm wheel 312 and the worm in the embodiment, the worm can rotate to drive the worm wheel 312 to rotate, so as to drive the rotating sleeve 120 to rotate, wherein the arrangement of the rotating groove 231 and the connecting groove 232 enables the worm wheel 312 and the worm to be better matched while the worm is installed; through the setting of motor 112 for motor 112 can drive the worm and rotate, and then realizes that the rotation of controller control motor 112 drives the rotation of rotating sleeve 120.
In this embodiment, the side walls of the through hole 111 are respectively provided with a sliding groove 211 having a square cross section and an area larger than the cross section of the through hole 111, the through hole 111 is provided with a clamping mechanism 130 for fixing the bus body 100, the clamping mechanism 130 includes two sliding plates 411 located in the sliding groove 211, the upper and lower side walls of the sliding groove 211 are respectively provided with a spring 521, the spring 521 is used for pushing the sliding plates 411 to seal the through hole 111, and the opposite side surfaces of the two sliding plates 411 are provided with a clamping groove 511 for clamping the bus body 100.
Through the arrangement of the clamping mechanism 130 in the embodiment, the clamping mechanism 130 can be clamped on the bus bar body 100, so that the protection device can be prevented from moving on the bus bar body 100; through the arrangement of the sliding groove 211, the spring 521 and the sliding plate 411, the spring 521 can push the sliding plate 411 to slide in the sliding groove 211, so as to seal the through hole 111, and the heat preservation effect of the protection device is better; the clamping groove 511 is configured to allow the sliding plate 411 to be clamped to the bus body 100 through the clamping groove 511, so that the bus body 100 can preferably pass through the protection device.
In this embodiment, the sliding plate 411 is located at the clamping groove 511 and extends outward to form a clamping portion 421 attached to the bus body 100, two sides of the clamping portion 421 extend to two sides to form mounting portions 422, and the corresponding mounting portions 422 are connected by bolts 423.
Through the setting of joint portion 421, installation department 422 and bolt 423 in this embodiment for joint portion 421 increases and generating line body 100's area of contact, connects installation department 422 through bolt 423, and then makes joint portion 421 fix on generating line body 100, thereby makes fixture 130 fix on generating line body 100 better, better prevent that protection device from rocking on generating line body 100.
In this embodiment, the opposite side surfaces of the supporting plate 110 are provided with circular sliding grooves having T-shaped cross sections, and the other end surface of the rotating sleeve 120 is provided with a sliding rail 313 sliding in the sliding grooves.
Through the arrangement of the sliding rail 313 and the sliding slot in the embodiment, the sliding rail 313 slides in the sliding slot to limit the rotating sleeve 120, so as to prevent the rotating sleeve 120 from shaking on the heat dissipation sleeve 221, and thus the worm wheel 313 and the worm are preferably matched.
When the direct current bus overvoltage protection device of the embodiment is used specifically, the sliding plate 411 is shifted up and down to be separated, then the bus body 100 penetrates through the through hole 111 to penetrate through the protection device, and the sliding plate 411 is loosened to be fixed on the bus body 100 through the bolt 423; when the bus protection device is used, the temperature detector detects the temperature of the bus, the controller controls the rotating sleeve 120 to rotate, the ventilation groove 311 and the heat dissipation groove 222 are controlled to be opposite to perform heat dissipation protection on the bus body 100, the ventilation groove 311 and the heat dissipation groove 222 are controlled to be staggered to perform heat preservation protection on the bus body 100, and therefore the protection device can be used for preferably protecting the direct current bus.
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. Direct current generating line overvoltage protection device, its characterized in that: the bus bar comprises two supporting plates (110) which are arranged in parallel, through holes (111) are formed in the middle of the supporting plates (110), a bus bar body (100) which penetrates through the through holes (111) is placed between the supporting plates (110), a heat dissipation sleeve (221) which is sleeved on the bus bar body (100) is connected between the supporting plates (110), and heat dissipation grooves (222) are uniformly distributed in the heat dissipation sleeve (221) along the left-right direction; a rotatable rotating sleeve (120) is arranged on the outer side of the heat dissipation sleeve (221) and between the support plates (110), the side wall of the rotating sleeve (120) is in sealed fit with the side wall of the heat dissipation sleeve (221), and ventilation grooves (311) matched with the corresponding heat dissipation grooves (222) are uniformly distributed on the rotating sleeve (120) along the left-right direction; the heat dissipation sleeve (221) is internally provided with a temperature detector for detecting the temperature of the bus body (100), and the temperature detector is connected with a controller for controlling the rotation of the rotating sleeve (120).
2. The dc bus overvoltage protection device of claim 1, wherein: a rotary groove (231) with a circular ring-shaped section is arranged on the opposite side surface of the support plate (110), and a connecting groove (232) communicated with the upper side surface of the support plate (110) is arranged on the side surface of the rotary groove (231); a worm wheel (312) positioned in the rotating groove (231) is arranged on one end face of the rotating sleeve (120), and a worm matched with the worm wheel (312) is rotatably arranged in the connecting groove (232); the upper side surface of the supporting plate (110) is provided with a motor (112), the output end of the motor (112) is connected with the worm, and the motor (112) is connected with the controller.
3. The dc bus overvoltage protection device of claim 1, wherein: all be equipped with on the lateral wall of through-hole (111) the cross-section and be square and the area is greater than sliding tray (211) of through-hole (111) sectional area, through-hole (111) department is equipped with fixture (130) that are used for fixing to generating line body (100), fixture (130) are including two sliding plates (411) that are located sliding tray (211), all be equipped with spring (521) on the upper and lower lateral wall of sliding tray (211), spring (521) are used for promoting sliding plate (411) to seal through-hole (111), be equipped with joint groove (511) that are used for joint generating line body (100) on the relative side of two sliding plates (411).
4. The dc bus overvoltage protection device of claim 3, wherein: the sliding plate (411) is provided with a clamping portion (421) which is attached to the bus body (100) and located in the clamping groove (511) and extends outwards, two sides of the clamping portion (421) extend towards two sides to form mounting portions (422), and the corresponding mounting portions (422) are connected through bolts (423).
5. The dc bus overvoltage protection device of claim 4, wherein: the opposite side of the supporting plate (110) is provided with a circular chute with a T-shaped section, and the other end face of the rotating sleeve (120) is provided with a slide rail (313) which is positioned in the chute and slides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165465.7U CN209896654U (en) | 2019-07-24 | 2019-07-24 | Overvoltage protection device for direct current bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165465.7U CN209896654U (en) | 2019-07-24 | 2019-07-24 | Overvoltage protection device for direct current bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209896654U true CN209896654U (en) | 2020-01-03 |
Family
ID=69002035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921165465.7U Expired - Fee Related CN209896654U (en) | 2019-07-24 | 2019-07-24 | Overvoltage protection device for direct current bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209896654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224359A (en) * | 2020-03-19 | 2020-06-02 | 青岛正为能源科技有限公司 | Double-flexible bus fixing clamp |
-
2019
- 2019-07-24 CN CN201921165465.7U patent/CN209896654U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224359A (en) * | 2020-03-19 | 2020-06-02 | 青岛正为能源科技有限公司 | Double-flexible bus fixing clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 Termination date: 20210724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |